Question number 3 I need help on please and thank you

Answer:

I believe it's 2(x-5)=3

Answer: A.-20

Step-by-step explanation:

f(4)=-2(4)^2+12

f(4)=-2(16)+12

f(4)=-32+12

f(4)=-20

Answer:

$0.45.

Step-by-step explanation:

Total amount of money held by all 5 children

= 5 * 0.50 = $2.50.

After 0.25 is lost the total = $2.25.

So the new average = 2.25 / 5

= $0.45.

The correct option is 7(x 7) by highest common factor.

The given expression is 7x49. We have to rewrite the given expression using a common factor.

To rewrite 7x 49 using a common factor, we can factor out 7.

7x49 can be written as 7 × x × 7 × 7.7x49 = 7 × x × 7 × 7

Therefore, the correct option is 7(x 7).

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Answer:

D

Step-by-step explanation:

Answer:

:)

Step-by-step explanation:

Answer:

14 5/6

Step-by-step explanation:

See picture for explanation.

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Answer:

A= 1,0 B=0,-3 C=-6,5 D=-3,-5 E=-1,4

Step-by-step explanation:

you did it right. just got some numbers mixed up (remember x=axis before y-axis)

Answer:

\(r=\frac{20}{7}\)

Answer:

D

Step-by-step explanation:

yt = 2

the ratio is 1:25

2×25=50

Answer:

f(g(2)) = 50

Step-by-step explanation:

evaluate g(2) then substitute the result obtained into f(x)

g(2) = 3(2) - 2 = 6 - 2 = 4 , then

f(4) = 2(4 + 1)² = 2(5)² = 2(25) = 50

Answer:

f[g(2)] = 50

Step-by-step explanation:

Given functions:

\(f(x)=2(x+1)^2\)

\(g(x)=3x-2\)

We are asked to determine f[g(2)], which is known as a composite function. When solving composite functions, you always work inside out.

Step 1: Find the value of g(2) by substituting 2 for x in function g(x).

\(\implies g(2)=3(2)-2\)

\(\\\implies g(2)=6-2\Rightarrow g(2)=\boxed{4}\)

Step 2: Substitute the found value into the composite function.

\(\\\implies f[g(2)]= 2(4+1)^2\)

\(\implies f[g(2)] = 2(5)^2 \Rightarrow 2(25) \Rightarrow \boxed{50}\)

Hence, the value of the composite function f[g(2)] is 50.

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When the function f(x) = x^4 becomes f'(x) = x^4 + 5, the following happens: A. it moves 5 units upward.

In Mathematics, the translation of a geometric figure to the right simply means adding a digit to the value on the x-coordinate (x-axis) of the pre-image of a function while a geometric figure that is translated upward simply means adding a digit to the value on the y-coordinate (y-axis) of the pre-image.

In Mathematics, a vertical translation to the positive y-direction (upward) is modeled by this mathematical expression g(x) = f(x) + N.

Where:

Therefore, we have:

g(x) = f(x) + N

g(x) = f(x) + 5

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Answer:

Step-by-step explanation:

The modal group is 10-20, as it has the greatest frequency of 27.

Estimated mode is calculated by formula:

where

Substitute values to get:

Answer:

add 4.3x to both sides of the equation

Step-by-step explanation:

A painter can paint 60 square feet every 1 hour.

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

A painter can paint 15 square feet every 1/4 hour.

Now,

Since, A painter can paint 15 square feet every 1/4 hour.

Let painter can paint in every 1 hour = x square feet

So, By definition of proportional as;

⇒ 15 / (1/4) = x / 1

Solve for x as;

⇒ 15 × 4 = x

⇒ x = 60 square feet

Thus, A painter can paint 60 square feet every 1 hour.

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The linear function is 8.50x + 5.50 and a $5.50 delivery fee would be included in the price of each hoodie purchased.

Part 1

The linear function rule is used in cases with only one shipping charge.

= 8.50x + 5.50, where x is the number of sweatshirts and y is the total cost in dollars.

Part 2

The linear function rule would be y = 8.50x + 5.50x = 14x, where y is the total cost in dollars and x is the number of sweatshirts if the shipping fee is applied to each sweatshirt. This implies that the $5.50 delivery fee would be included in the price of each hoodie purchased.

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Answer:

96π mm^3

Step-by-step explanation:

πr^2*h = formula

π4^2*6 = 16π(6) = 96π mm^3

Answer:

\(\Longrightarrow: \boxed{\sf{96\pi }}\)

Step-by-step explanation:

You must use the volume of this cylinder formula to solve the volume of this cylinder.

Volume of this cylinder formula:

\(\Longrightarrow: \sf{\pi r^2*h}\)

\(\Longrightarrow\sf{\pi 4^2*6}\)

Use the order of operations.

PEMDAS stands for:

First, solve exponents.

4²=4*4=16

16*6

Multiply.

16*6=96

\(\Longrightarrow: \boxed{\sf{96\pi}}\)

I hope this helps! Let me know if you have any questions.

Answer: Northeast - unless you are at the South Pole, in which case you are still facing North.

Step-by-step explanation

Sequence:

Facing North

90 degrees left = facing West

180 degrees right = facing East

reverse = facing West

45 degrees left = facing Southwest

reverse = facing Northeast

The correct answer is D.

The variable of time that could cause a student’s GPA to increase is studying.

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When I searched the answer up it gave me 279 or 197

Answer: i dunno what '.......' was suppose to mean but 11 + 15 + 19 + 83 = 128

Step-by-step explanation: b more specific dood -_-

The sum of the arithmetic series is:

893

What are arithmetic progressions?

An arithmetic sequence with a specific number of terms is the sum of all the terms in an arithmetic series.

An arithmetic sequence's first n terms are added together to form (n/2).(a1+an). The arithmetic series formula is what it is known as.

Solution:

Given:

a1 = 11, a2 = 15 and an=83

Step-1:

d= a2 ₋ a1

d= 4

Now, an = a ₊ (n ₋ 1)d

          83 = a ₊ (n ₋ 1)4

          83 = 11 ₊ 4n ₋4

          83 = 7 ₊ 4n

         4n = 83 ₋ 7

          n = 19

Step-2:

Now, Sn = n/2 (a1 ₊ an)

         Sn = 19/2 (11 ₊ 83)

         Sn = 19/2 ₓ 94

         Sn = 893

Hence we get the answer as 893

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A. For Dataset 401K in Wooldridge, the data can be found in the "wooldridge" package. The variable in question is "prate" (participation rate) and "mrate" (matching rate).

The definitions of these variables can be obtained from the package documentation or by typing "?401K" in the R console.

B. To estimate the relationship between "prate" and "mrate" using simple linear regression, we can use the formula: mrate = B0 + B1 * prate. The estimated simple regression function would provide the values for the intercept (B0) and the slope coefficient (B1).

C. The slope coefficient in the simple linear regression model represents the change in the dependent variable (mrate) associated with a one-unit change in the independent variable (prate). In this case, the slope coefficient would indicate the change in the matching rate for each unit increase in the participation rate.

D. To determine if the coefficients are significant, we need to check their p-values. If the p-value is below a chosen significance level (e.g., 0.05), we can conclude that the coefficient is statistically significant. This indicates that the coefficient is unlikely to be zero, suggesting a meaningful relationship between the variables.

E. The R-squared (R²) value represents the proportion of variance in the dependent variable (mrate) that is explained by the independent variable (prate). It indicates the goodness of fit of the regression model. The R-squared value ranges from 0 to 1, with a higher value indicating a better fit and a larger percentage of variance explained by the independent variable.

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Answer:

Although it's blurry, I believe y is equal to 3.

Step-by-step explanation:

You can see where x (the horizontal line) = 7, then go up to where the diagonal line meets that point, which is at y (the vertical line) = 3.

Answer:

Step-by-step explanation:

The water run at a constant speed with the slope of 5/12.

Slope-intercept form would be y = 5/12x.

So if we were to plug it in the equation,

y = 5/12 (7) = 35/12 or 2 11/12.

Hope this helps ;D

The simplified forms of the given functions using Boolean Algebra are as follows:

a. The function f(x, y) simplifies to xy.

b. The function f(x, y) simplifies to x.

c. The function f(x, y, z) simplifies to y' + xz.

d. The function f(x, y, z) simplifies to (x + y).

e. The function f(w, x, y) simplifies to x + xyz + x'y + wx.

To simplify the given functions using Boolean Algebra, we apply different rules and principles of Boolean Algebra to simplify the expressions. Each function is simplified by applying specific laws and theorems.

The simplified forms are obtained by simplifying the terms and combining like terms using Boolean Algebra principles.

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The question is incomplete

Answer:

11

Step-by-step explanation:

Answer:

11.4  (This is already rounded to the nearest tenth)

Step-by-step explanation

1.) Add all of them

17+7+13+17+7+9+10=80

2.) Divide the sum by how many numbers there are

In this case, there are 7, so 80/7 is 11.42...

3.) Get the answer

80.7 simplifies into 11.42 so rounded to the nearest 10th is 11.4.

Hope this helped. Good luck on your homework!

The number of ways are there of choosing ten balls from the box if the number of green balls must be in even numbers =15946 ways

To determine the number of ways of choosing ten balls from the box such that the number of green balls chosen is even, we need to consider the different possible combinations of green balls that could be chosen.

First, we can select 0 green balls, in which case we would need to choose all 10 balls from the 5 red and 8 yellow balls. This can be done in (5+8) choose 10 ways, which is 13 choose 10, or 286 ways.

Alternatively, we could choose 2, 4, or 6 green balls, and then select the remaining balls from the red and yellow balls. To count the number of ways of doing this, we can use the binomial coefficient formula.

The total number of ways of selecting 10 balls from the box is (6+5+8) choose 10, which is 19 choose 10, or 92,378 ways.

Therefore, the number of ways of choosing 10 balls from the box such that the number of green balls chosen is even is the sum of the number of ways of choosing 0, 2, 4, or 6 green balls, which is:

(6 choose 0)(13 choose 10) + (6 choose 2)(5 choose 8)(8 choose 0) + (6 choose 4)(5 choose 6)(8 choose 0) + (6 choose 6)(5 choose 4)*(8 choose 0)

Simplifying this expression gives a total of 15,946 ways.

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Answer:

Step-by-step explanation:

An important math tool is graphing. It can be a straightforward method for introducing more general concepts like most and least, greater than, or less than. It can also be a great way to get your child interested in math and get them excited about it. Using graphs and charts, you can break down a lot of information into easy-to-understand formats that quickly and clearly convey key points.

Given equation 2x + y = 6 we can drive from this equation that at x = 0 y will be 6 and y =0 x will be 3 hence we have two points of the line (0,6) and (3,0)

From the Given equation (2) 6X + 3Y = 12 we can drive from this equation that at x = 0 y will be 4 and y =0 x will be 2 hence we have two points of the line (0,4) and (2,0).

From the given expression above we get {a) 9tq - 15tq = - 6t

There are numerous branches of mathematics. The discipline of arithmetic deals with numbers and mathematical procedures. Math taught us how to add, subtract, multiply, and divide two or more numbers.

Shapes are the main focus of geometry, which involves creating them with various instruments including a compass, ruler, and pencil. Another fascinating area of study is algebra, in which we use numbers and letters to represent situations from daily life.

Every mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression. In the phrase 4m + 5, for instance, the terms 4m and 5 are separated from the variable m by the arithmetic sign +.

a) 9tq - 15tq = -6tq

b) 13p - 4p + 6q = 9p + 6q

c. 5a - 2(4a - 1) + 6(4a - 1)

= 5a - 8a + 2 + 24a - 6 = 21a - 4

d. 7(3c + 2) - 9(3c + 2) + 2c

= 21c + 14 - 27c - 18 + 2c = -4c - 4

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Simple Interest is the method of finding the interest amount for a particular principal amount of money at a particular rate of interest.

The simple interest for $900 at an interest rate of 6% is $108.

Simple Interest is the method of finding the interest amount for a particular principal amount of money at a particular rate of interest.

We have,

Principal = $900

Rate of interest = 6%

Time = 2 years.

Remember that time should always be in years.

The formula for simple interest is given by:

SI = PRT / 100

Where,

P = principal

R = rate of interest

T = Number of years

So,

SI = 900 x 6 x 2 / 100

SI = $108

Thus the simple interest for $900 at an interest rate of 6% is $108.

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