3x-y=-1. X-2y=-12 solve by using graphing

Answers

Answer 1

Answer:

x = 2

y = 7

Step-by-step explanation:

Graphing calculators are everywhere but ok.

I attached a graph.

3x-y=-1. X-2y=-12 Solve By Using Graphing

Related Questions

Worth 60 points for a rapid reply- find the area of each regular polygon. Answers are rounded to the nearest whole number.

Worth 60 points for a rapid reply- find the area of each regular polygon. Answers are rounded to the

Answers

The area of the regular polygons with 12 sides(dodecagon) and 5 sides (pentagon) are 389.06 in² and 19.87 in² respectively.

How to calculate for the area of the polygon

Area of regular polygon = 1/2 × apothem × perimeter

perimeter = (s)side length of octagon × (n)number of side.

apothem = s/[2tan(180/n)].

11 = s/[2tan(180/12)]

s = 11 × 2tan15

s = 5.8949

perimeter = 5.8949 × 12 = 70.7388

Area of dodecagon = 1/2 × 11 × 70.7388

Area of dodecagon = 389.0634 in²

Area of pentagon = 1/2 × 5.23 × 7.6

Area of pentagon = 19.874 in²

Therefore, the area of the regular polygons with 12 sides(dodecagon) and 5 sides (pentagon) are 389.06 in² and 19.87 in² respectively.

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Do the following using the given information: Utility function u(x1+x2) = .5ln(x1) + .25ln(x₂) .251 Marshallian demand X1 = - and x₂ = P₂ . Find the indirect utility function . Find the minimum expenditure function . Find the Hicksian demand function wwww

Answers

Hicksian demand functions are:x1** = 2P₁x₂ ; x₂** = P₂²

Utility function: u(x1+x2) = .5ln(x1) + .25ln(x₂) .The Marshallian demand functions are: x1* = - and x₂* = P₂.

The indirect utility function is found by substituting Marshallian demand functions into the utility function and solving for v(P₁, P₂, Y).u(x1*,x2*) = v(P₁,P₂,Y) ⇒ u(-, P₂) = v(P₁,P₂,Y) ⇒ .5ln(-) + .25ln(P₂) = v(P₁,P₂,Y) ⇒ v(P₁,P₂,Y) = - ∞ (as ln(-) is not defined)

Thus the indirect utility function is undefined.

Minimum expenditure function can be derived from the Marshallian demand function and prices of goods:

Exp = P₁x1* + P₂x2* = P₁(-) + P₂P₂ = -P₁ + P₂²

Minimum expenditure function is thus:

Exp = P₁(-) + P₂²

Hicksian demand functions can be derived from the utility function and prices of goods:

H1(x1, P1, P2, U) = x1*H2(x2, P1, P2, U) = x2*

Hicksian demand functions are:

x1** = 2P₁x₂

x₂** = P₂²

If there are no restrictions on the amount of money the consumer can spend, the Hicksian demand functions for x1 and x2 coincide with Marshallian demand functions.

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the ratio of peter's age to richard's age is $5:8.$ the ratio of john's age to peter's age is $7:12.$ none of the three are over $100$ years old. what is the sum of their ages?

Answers

The sum of Peter, Richard, and John's ages is 191.

We know that the ratio of Peter's age to Richard's age is = 5/8 --(i)

The ratio of John's age to Peter's age is = 7/12 --(ii)

Similarly, the ratio of John's age to Richard's age is = (5*7)/(8*12)= 35/96 -(iii)

Using the value of (i),(ii),(iii), we get -

Age of Peter = (5*12)/(8*12) = 60/96

= 60 years of age

Age of John = (7*5)/(12*5) = 35/60

=35 years of age

From the value of (iii), since no one is over 100 years of age, the age of Richard= 96 years of age

Hence the sum of their ages is = 96+35+60

= 191

Therefore, we know that the sum of their ages is 191.

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If the sample data points are very close to the estimated regression line, then (Choose ALL the right answers.)
a. The slope will be a very big positive number.
b. It is likely to be a decreasing line.
c. The standard error is likely to be small.
d. The R square will tend to be high.
e. The line will look very ugly.

Answers

If the sample data points are very close to the estimated regression line, then standard error is likely to be small and R square will tend to be high. So, correct options are C and D.

Firstly, the slope of the regression line may not necessarily be a very big positive number. The slope of the line depends on the relationship between the independent and dependent variables, and how the dependent variable changes with a unit change in the independent variable.

If the data points are closely packed around the line, it means that the slope is more likely to be a moderate or small number.

Secondly, it is unlikely that the line will be decreasing, as the regression line is usually a straight line that shows the average relationship between the independent and dependent variables.

Thirdly, if the data points are very close to the estimated regression line, then the standard error is likely to be small. This means that the estimated regression line is a good fit for the data and the observed values are close to the predicted values.

Fourthly, the R square will tend to be high if the data points are close to the estimated regression line. R square is a measure of how well the regression line fits the data points, and if the data points are close to the line, then the R square will be higher.

Lastly, if the data points are very close to the estimated regression line, then the line is likely to look visually appealing and not "ugly." The regression line is a summary of the data and should be a good representation of the observed relationship between the variables.

So, correct options are C and D.

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Please help me with this

Please help me with this

Answers

Answer:

f 852

Step-by-step explanation:

Coach Bennet’s high school basketball team has 14 players, consisting of six juniors and eight seniors. Coach Bennet must select three players from the team to participate in a summer basketball clinic.

Coach Bennets high school basketball team has 14 players, consisting of six juniors and eight seniors.

Answers

Using the permutation formula, the number of different options for the top three finishers is given as follows:

\(P_{14,3} = \frac{14!}{11!} = 2184\)

The order in which the players are chosen is important, as A, B, C is a different outcome than C,B,A for example, hence the permutation formula is used to solve this question.

What is the permutation formula?

The number of possible permutations of x elements from a set of n elements is given by:

\(P_{(n,x)} = \frac{n!}{(n-x)!}\)

In this problem, 3 students will be chosen from a set of 14, hence the number of ways is:

\(P_{14,3} = \frac{14!}{11!} = 2184\)

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Help me please with the questions I got wrong I don’t understand them

Help me please with the questions I got wrong I dont understand them

Answers

1. The given angle of depression is 26 degree.

So, tan(26°)=Elevation/Distance

or Distance = Elevation/tan(26°)

Given, Elevation = 3KM, therefore

Distance=3KM/0.487

Distance=6.15 KM

2. From the given figure it is clear that sin ∠C=y/x

Similarly Cos ∠B=y/x

Therefore, Sin ∠C=Cos ∠B.

3. Using the Pythagorean theorem i.e. \(Hyp^2=Base^2+Height^2\)

Substituting the given values \(6^2=3^2+h^2\)

\(h^2=27\)

Therefore, h=\(\sqrt{27}\)

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he formula for density is given by , where p is density, M is mass and V is volume. If a substance has a mass of 27.82 grams and a volume of 3.6 ml, what is the most accurate density of the substance in g/ml?
7.7
7.7278
7.73
0.1

Answers

Answer:

p = [27.82] ÷ [3.6]

p = 7.727·

p = 7.728 (3dp)

The answer is B)

Step-by-step explanation:

Answer:

B) 7.7278

Step-by-step explanation:

Tanzila is selling tickets to the MS127 musical. On the first day of ticket sales she sold 2 adults tickets and 10 child tickets for a total of $78. Then she sold $67 on the second day by selling 8 adults tickets and 5 child tickets. What is the price of one adult ticket and one child ticket?

Answers

Answer:

One adult ticket is $4 and one child ticket is $7

Step-by-step explanation:

Make a system of equations

2x + 10y = 78

8x + 5y = 67

Solve by elimination, multiply the 2nd equation by -2

2x +10y = 78

-16x -10y = -134

Add the equations

-14x = -56

x = 4

The price of one adult ticket is $4

Plug 4 in as x to find y

2(4) + 10y = 78

8 + 10y = 78

10y = 70

y = 7

The price of one child ticket is $7

Simplify the following numerical expressions.

Choose from the numbers in parentheses

|-7| - 7 =
<
2 |-7| =
( -7 )^2 =
<
-7^2 =
>
-7 -|-7| =
(-49) (14) (-14) (0) (49)

Simplify the following numerical expressions.Choose from the numbers in parentheses|-7| - 7 =&lt;2 |-7|

Answers

Answer:

|-7| - 7 =  0

2 |-7| =  14

( -7 )^2 =  49

-7^2 =  49

-7 -|-7| =  -14

Step-by-step explanation:

i have no one to talk to

Answers

Get a life stop felling sorry for yourself

Answer:

Hiiiiiii :)

Step-by-step explanation:

Drag and drop words and phrases that pertain to the New Testament.

part of the Hebrew Bible


Revelation


Gospels by Matthew, Mark, Luke, and John

Epistles, including letters from Paul


stories about creation

parables about Jesus’s life and teachings


I know irs Revelation But I dont know the reset

Answers

Answer:

history, Paul's letters, general letters and prophecy

Jake's coupon took $2 off the price of a book. If the coupon took off 10% of the price,
how much did the book originally cost?

Answers

20 because 10% of 20 is 2

For which of these numbers would you most likely count rather than subitize?
A. 0
B. 1
C. 3
D. 5

Answers

A and B are typically subitized, which means that they can be immediately recognized without counting. C and D are more likely to be counted.

Counting is the process of determining the number of items in a set by successively adding one. Subitizing, on the other hand, is the ability to immediately recognize the number of items in a small set without counting. The capacity for subitizing is limited to small sets typically ranging from 1 to 5 items, depending on the individual's age and mathematical ability. The answer to this question would be option C, 3. For most individuals, recognizing the number of items in a set of 3 would require counting rather than subitizing, as 3 is at the upper limit of the typical range for subitizing.

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Which statements correctly compare two numbers? Select all that apply.
A. 0.1 < 0.125
B. 0.2 < 0.125
C. 0.125 > 0.13
D. 0.125 > 0.12
E. 0.126 < 0.125

Answers

A statement like that. An assertion is a single statement or comment. b: an information or idea report, 1 < 0.125= True, 125 > 0.12=True, and 126 < 0.125=True

What is meant by assertion?An assertion is a precise, unequivocal mathematical statement stating that something is true (e.g., that some relation between mathematical objects holds; that some object has some property; etc.). To qualify an assertion, it is not necessary for the statement to be true. An assertion is an emphatic declaration made as part of an argument or as if it is to be understood as a statement of fact. To assert is to make a strong statement. So when someone makes an assertion, they aren't just experimenting with a new idea; they truly believe it. A fundamental assertion is a simple statement that expresses a belief, feeling, opinion, or preference.

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Use Newton's method to approximate the zero of the function f(x)=x^3-4x+33 to five decimal places. Round any intermediate calculations, if needed, to no less
than six decimal places, and round your final answer to five decimal places.

Answers

The answer for this is f(c) x^3-4x+33

determine the probability that all the molecules of a gas will be found in one half of a container when the gas consists of 1 molecule.

Answers

The probability that all the molecules of a gas consisting of 1 molecule will be found in one half of a container is 1 or 100%.

If a gas consists of only one molecule, then it will always be found in one half of the container. This is because there is no other molecule to interact with and no other half of the container to occupy. Therefore, the probability that all the molecules of a gas consisting of 1 molecule will be found in one half of a container is 1 or 100%.

However, this is not the case for gases consisting of more than one molecule. In fact, the probability of all the molecules being found in one half of a container is extremely low and depends on the number of molecules, the volume of the container, and the temperature and pressure of the gas.

This phenomenon is related to the concept of entropy and the tendency of systems to move towards a state of higher disorder. As the number of molecules in a gas increases, the probability of all the molecules being found in one half of a container decreases exponentially.

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evaluate the expression 3 (2x)-7-x square for the value x=-2

Answers

The value of 3 (2x)-7-x square for the value x=-2 will be -23.

How to calculate the expression?

Expression simply refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both. Addition, subtraction, multiplication, and division are all possible mathematical operations.

The value of 3 (2x)-7-x square for the value x=-2 will be:

3(2x)-7-x² for the value x=-2

= 3(2 × -2) - 7 -(-2)²

= -12 - 7 - 4

= -23

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Find the value of x….

Find the value of x.

Answers

Answer:

  x = 9

Step-by-step explanation:

You want the measure of x, given inscribed angle (8x-9)° subtends an arc of measure (19x-45)°.

Inscribed angle

An inscribed angle has half the measure of the arc it subtends. This tells us the arc measure is twice the angle measure:

  2(8x -9)° = (19x -45)°

  16x -18 = 19x -45 . . . . . divide by °, eliminate parentheses

  27 = 3x . . . . . . . . . . add 45-16x

  9 = x . . . . . . . . . . . divide by 3

The value of x is 9.

__

Additional comment

The inscribed angle is 63°; the arc is 126°.

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Suppose that the interest rate in Canada is 4%, in Japan it is 7%, and financial assets in the two countries are equal in risk. As a result: a. capital will flow from Japan to Canada. b. capital will flow from Canada to Japan. c. capital will not flow between Japan and Canada. d. Japan will export more goods to Canada.

Answers

The, option (a) is the correct answer. Option (b) is incorrect since the higher interest rate in Japan would discourage investment in Canada, rather than attracting it. Option (c) is also incorrect since interest rate differentials are a significant driver of capital flows between countries. Option (d) is not directly related to the question of interest rate differentials and capital flows.

Capital will flow from Japan to Canada.

When interest rates are higher in one country compared to another country, investors will seek to invest in that country to earn higher returns. In this case, the interest rate is higher in Japan (7%) compared to Canada (4%), and financial assets in the two countries are equal in risk. As a result, investors in Japan will seek to invest in Canada to earn a higher return, which will result in the outflow of capital from Japan and the inflow of capital into Canada.

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Suppose that the interest rate in Canada is 4%, in Japan it is 7%, and financial assets in the two countries are equal in risk. As a result, capital will flow from Canada to Japan. The correct option is (b).

To determine the direction of capital flow between countries based on interest rate differentials, we need to consider the concept of interest rate parity.

According to interest rate parity, capital tends to flow from a country with a lower interest rate to a country with a higher interest rate.

In this case, the interest rate in Canada is 4% while in Japan it is 7%. Since the interest rate in Japan is higher than in Canada, according to interest rate parity, capital is expected to flow from Canada to Japan.

It's important to note that this analysis assumes that other factors such as exchange rates, inflation, and market conditions remain constant.

In reality, capital flows can be influenced by a range of other factors, including market expectations, political stability, and economic outlook, which may complicate the relationship between interest rates and capital flows.

Therefore, the correct option is (b.) capital will flow from Canada to Japan.

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TRUE/FALSE When inserting a value into a partially-filled array, in descending order, the insertion position is the index of the first value smaller than the value.

Answers

The given statement When inserting a value into a partially-filled array in descending order, the insertion position is indeed the index of the first value smaller than the value being inserted is true.

What is partially filled array?

A partially filled array, also known as a sparse array, is an array data structure where not all elements are populated with values. In other words, it is an array that contains empty or uninitialized elements.

When inserting a new value into this sorted array, we start from the beginning and compare the value with each existing element until we find the first element that is smaller. The insertion position for the new value is the index of this first smaller element.

For example, if we have a partially-filled array [10, 8, 5, 3] and we want to insert the value 6 into the array in descending order, we compare 6 with each element from left to right. The first element smaller than 6 is 5, and its index is 2. Therefore, the insertion position for the value 6 would be index 2, resulting in the updated array [10, 8, 6, 5, 3].

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PLEASE HELP QUICK
Using a model of the prototype artillery, a ball is fired into the air with an initial upward velocity of 48 ft/s. Its height, h, in feet after t seconds is given by the function:
What height will the ball be when 2 seconds has passed?
In how many seconds will the ball reach its maximum height?
What is the ball’s maximum height?
After how many seconds will the ball hit the ground?

equation is in the comments!!!!!

Answers

t = time    Just put   t = 2 into the equation and calculate  h

 

h = - 16(2^2) + 48(2) + 4         Got it ?

Harlan is building a fence. After he sets the corner post, he uses 2 eight-foot posts, 4 braces, and 48 feet of paneling for every 12 feet of fence. Harlan needs to build 60 feet of fence today and he has 208 feet of paneling. How many more feet of paneling does he need?

Answers

32 because Eva told me

What is the inverse of the function f(x) = 2x – 10?
O h(x) = 2x-5
Oh(x) = 2x + 5
Oh(x) =
Ix-5
x) = {x+5
Oh(x) =

Answers

If h(x) is the inverse of f(x), then by definition of inverse function, we have

f(h(x)) = x

By definition of f(x), composing f with h gives

f(h(x)) = 2 h(x) - 10

Solve for h(x) :

x = 2 h(x) - 10

2 h(x) = x + 10

h(x) = (x + 10)/2

h(x) = x/2 + 5

So... whichever option most closely resembles this is the correct one. It's hard to tell exactly which one that would be.

The mapping diagram represents a relation where x represents the independent variable and y represents the dependent variable. A mapping diagram with one circle labeled x-values containing values negative 8, negative 5, negative 1, 1, and 12 and another circle labeled y values containing values negative 4 and negative 2 and arrows from negative 8 to negative 4, negative 5 to negative 2, negative 1 to negative 2, 1 to negative 2, 12 to negative 4, and 12 to negative 2. Is the relation a function? Explain.

Answers

To determine whether the relation is a function, we need to check if each x-value is associated with only one y-value in the mapping diagram.

Identify the mapping diagram.

A mapping diagram is a picture of two circles that shows the connection between input and output values. Illustration of a mapping diagram. The x-values (inputs) in the image are converted to the associated y-values by drawing an arrow from one x-value to its corresponding y-value (outputs).

From the given mapping diagram, we can see that the x-value -8 is associated with the y-value -4, the x-value -5 is associated with the y-value -2, the x-value -1 is associated with the y-value -2, the x-value 1 is associated with the y-value -2, the x-value 12 is associated with both the y-value -4 and -2.

Since the x-value 12 is associated with two different y-values, the given relation is not a function. To be a function, each x-value must be associated with only one y-value in the mapping diagram.

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Answer: I think its C lmk if I'm wrong

Explanation:

I really need help with this please help me, thanks.

I really need help with this please help me, thanks.

Answers

Answer:

D

Step-by-step explanation:

I really need help with this please help me, thanks.

6x – 3y = 36 find ySolve the equation below for y.

Answers

Answer:

y = 2x -12

Step-by-step explanation:

6x – 3y = 36

Subtract 6x from each side

6x-6x – 3y =-6x+ 36

-3y = -6x +36

Divide by -3

-3y/-3 = -6x/-3 +36/-3

y = 2x -12

The angle of elevation from a ball on a football field to the top of a 30-foot tall goal post is 16 degrees 42 minutes. How far is the football from the base of the goal post? Round to the nearest tenth of a foot

Answers

Answer:

  100.0 feet

Step-by-step explanation:

You want to know the distance to a goalpost when the angle to the top of its 30 ft height is 16°42'.

Tangent

The tangent relation is ...

  Tan = Opposite/Adjacent

Multiplying by Adjacent/Tan gives ...

  Adjacent = Opposite/Tan

Application

In this problem, the distance to the goal can be modeled by the side "adjacent" to the acute angle 16°42' in a right triangle, and the "opposite" side will be the height of the goal.

  adjacent = 30'/tan(16°42') ≈ 99.995 ft

Rounded to the nearest tenth, the distance to the goalpost is 100.0 feet.

Please help me out, i'll award brainliest to the most informative answer.

Samantha's mother spent $78 at a farmers market. She bought the same number of pounds of apples for $1.50 per lb as tomatoes for $2.50 per lb. She also bought half that weight of a farmers cheese that sold for $4.00 per lb. The number of pounds of peaches she bought for $3.00 per lb was one more pound than the farmers cheese. How many pounds of each product did Samantha's mother buy?

Answers

Answer:

The number of pounds of apples she bought = 10 pounds

The number of pounds of tomatoes she bought = 10 pounds

The number of pounds of the farmers cheese she bought = 5 pounds

The number of pounds of peaches she bought = 6 pounds

suppose that you roll 2 dice and observe the numbers showing on the uppermost surfaces of the dice. find the probability that the sum of the numbers is 8

Answers

The probability of rolling a sum of 8 when rolling two dice is 5/36. Explanation: There are 36 possible outcomes when rolling two dice, as each die has 6 possible outcomes. Out of these 36 outcomes, there are 5 ways to obtain a sum of 8: (2, 6), (3, 5), (4, 4), (5, 3), and (6, 2). Therefore, the probability is 5/36.

To find the probability of obtaining a sum of 8 when rolling two dice, we need to determine the total number of favorable outcomes and the total number of possible outcomes.

The total number of possible outcomes can be calculated by multiplying the number of outcomes on each die. Since each die has 6 possible outcomes (numbers 1 through 6), the total number of possible outcomes is 6 x 6 = 36.

Next, we need to determine the number of favorable outcomes, i.e., the number of ways we can obtain a sum of 8. We can list all the possible combinations that result in a sum of 8: (2, 6), (3, 5), (4, 4), (5, 3), and (6, 2). There are five such combinations.

Finally, we divide the number of favorable outcomes by the total number of possible outcomes to obtain the probability. In this case, 5 favorable outcomes divided by 36 possible outcomes gives us 5/36.

Therefore, the probability of rolling a sum of 8 when rolling two dice is 5/36.

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Other Questions
Consider the vector-field (a) Show that F = (3x + y)i + (x + y) j. a. Show that F is conservative. (b) Find a potential fonction for F(c) Evaluate _CF.drwhere C is the arc of the parabola x=y2from (1,1) to (9,3). Post a full paragraph consisting of 3 full sentences describing how to prepare a PTB. Please provide the following information for the step: - Describe what is involve in completing the step. Please be as specific and detail as possible as if you were teaching a friend on how to complete the step properly. For example, list name of accounts in account-type order. Then from the ledger after closing entries have been posted, enter each account end debit or credit balance in the Debit or Credit column of the PTB. - If you understand the step well, please share what helps you get there or If you have difficulty understanding the step, please share what you use to overcome your initial difficulties. A recommendation which will help is to read under the heading of "Post-Closing Trial Balance" in the textbook or ebook. - Describe similar features found among UTB, ATB, and PTB. Here are some similarities... all Trial Balance reports include a heading, have accounts listed in account-type-order (1. Assets, 2. Liabilities, 3. Equity, 4. Revenues, and 5. Expenses), and show total debits equal to total credits. - Explain why PTB only have permanent accounts listed. The paragraph should contain at least 75 words. midsegment of a trapezoid find x The opportunity cost of a choice is the _____ of the opportunities lost.a. Valueb. Interest in the story gift of the magi what ironic situation has been created due to the love and affection the husband and wife have for eachother ? When would treatment with medication be considered for a child with attention deficit hyperactivity disorder (adhd)? select all that apply. Find the slope (in reduced form) between the points (4, 6) and ( 2, 8). Write the decimal number as a binary number26 According to freud, the component of personality that seeks to reconcile the demands of the id, superego, and reality is the. in one year the water level of a lake change is b -3/8 in the water level of the lake continue to change at this rate for 7 years how many inches will the water level of the lake have changed henry is filling his fish tank up with water at a constant ratefive minutes after henry began filling the tank the water level was 17 cmtwelve minutes after henry began filling the tank, the water level was 38cmwhat was the water level at 0 minutes when henry began to fill the tank? the strategy wherein a brand can use social media to communicate about a bad situation before their reputation is tarnished by the spread of misinformation can be termed as . a. denial b. rebuttal c. bolstering d. inoculation Solve the system of linear equations by graphing. {x = 3 {y = -1/2(1/,3)(3,-1/2)(-1/2,3)(-3,-1/2) What was the threshold stimulus value to achieve a twitch response in your muscle prep? did you see a twitch response in the muscle at this threshold value?. Describe the following pattern :1;2;4;7;11;16 True or False: F Layout is better for users who read left to right, but layout is better for users who read right to left. a student pushes against a wall until they are exhausted!!! (and obviously the wall doesn't move) has the student done any work on the wall? which phrase describes a gas? Please help giving brainliest Given f(x)=x2+6x+9f(x)=x2+6x+9andg(x)=xg(x)=xFind and simplify the following:(1.1)(1.1)g(f(x))g(f(x))(1.2)(gf)(x)(1.2)(g-f)(x)(1.3)(gf)(x)(1.3)(gf)(x)(1.4)g1(x)