Answer:
a = -2
Step-by-step explanation:
-3a + 8 = 14
First you want to combine the constants by subtracting 8 from both sides.
-3a = 6
Now you want to isolate a by dividing both sides by -3.
a = -2
Check your answer by plugging -2 back into the equation.
-3(-2) + 8 = 14
6 + 8 = 14
14 = 14
Your answer is correct.
Hope this helps!
Graph the inverse of the function plotted, on the same set of axes. Use a dashed curve for the inverse.
-10
The graph of the inverse function is given by the image presented at the end of the answer, and the correct option is given by option 3.
How to obtain the inverse function?The parent function for this problem is the cube function translated up two units, hence it is defined as follows:
y = x³ + 2.
To obtain the inverse function, first we must exchange the variables x and y on the definition of the function, as follows:
x = y³ + 2.
Then we must isolate the variable y, as follows:
\(y^3 = x + 2\)
\(y = \sqrt[3]{x + 2}\)
Which has the correct dashed graph given by option 3 on the image given.
More can be learned about inverse functions at https://brainly.com/question/3831584
#SPJ1
Triangle PQR is a right triangle.
Triangle P Q R. Angle P is 90 degrees, angle Q is x degrees, angle R is 2 x degrees.
Which equation could be used to find the measure of Angle Q?
Answer:
90 + 2 = 92
180 - 92 = 88
Angle Q = 88
Step-by-step explanation:
All a triangles, angles should equal to 180.
Answer:
180 = 3 x + 90
Step-by-step explanation:
Hope it helps.Give me a brainliest please.
3 6 9 12 15 18 21 24 27 30 is odd or even numbers?
Answer: Half of them are even and half of them are odd.
Step-by-step explanation:
The even numbers are 6, 12, 18, 24, and 30. An even number is defined as a number that is divisible by 2, meaning it has no remainder when divided by 2. For example, 6 divided by 2 equals 3 with no remainder, so 6 is even.
The odd numbers are 3, 9, 15, 21, and 27. An odd number is defined as a number that is not divisible by 2, meaning it has a remainder of 1 when divided by 2. For example, 9 divided by 2 equals 4 with a remainder of 1, so 9 is odd.
Therefore, out of the given numbers, half of them are even and half of them are odd.
________________________________________________________
Given b(x) = [X+41, what is b(-10)?O-10O -614
Given : b(x) = | x + 4 |
So, to find b(-10) , substitute with x = -10 at the function b(x)
So, b(-10) = | -10 + 4 | = | -6 | = 6
Work out 30% of $150
Answer:
$\(45\)
Step-by-step explanation:
\(30\)% \(\mathrm{of}\) $\(150\)
\(=\frac{30}{100}\times 150\\\)
\(=\) $\(45\)
If square ABCD is similar to square WXYZ and AB = 35 , AD = 30 , and WX = 42 , find WZ
Answer:
35.5
Step-by-step explanation:
Complete the table representing a linear function
Answer:
10 ; 10
Step-by-step explanation:
( 1 , 0 )
( 5 , 40 )
m = \(\frac{40-0}{5-1}\) = 10
y = 10x - 10
( 2 , 10 )
( 10 , 90 )
I NEED HELP BY TMRW WILL GIVE THE BRAINLIEST TITLE
The mid points of the four sides of square ABCD are joined to form square WXYZ as shown. The area of square WXYZ is 16. The area of triangle YCX is….
F. 4
G. 2
H. 1.5
J. 1
K. None of these
The area of triangle YCX is given as follows:
G. 2 units squared.
How to obtain the area of the triangle?The area of square WXYZ is 16, hence the side length is given as follows:
s² = 16
s = 4.
Considering the midpoints, we have that the sides of the right triangle are given as follows:
YC = CX = 4/2 = 2
Hence the area of the triangle is given as follows:
0.5 x 2 x 2 = 2 units squared.
More can be learned about the area of a triangle at https://brainly.com/question/21735282
#SPJ1
4
(Graphing Proportional Relationships LC)
The table shows a proportional relationship.
x 12 8 24
y 3 26
Describe what the graph of the proportional relationship would look like.
O Aline passes through the point (0, 0) and continues through the point (3, 12).
O Aline passes through the point (0, 0) and continues through the point (2,8).
A line passes through the point (0, 0) and continues through the point (6, 24).
A line passes through the point (0, 0) and continues through the point (12, 3).
Question 2(Multiple Choice Worth 2 points)
(Graphing Proportional Relationships MG)
The correct answer is option D: A line passes through the point (0, 0) and continues through the point (12, 3)
For the first question:
The table shows a proportional relationship between x and y. To describe what the graph of this proportional relationship would look like, we can examine the given data points.
The data points are (12, 3), (8, 26), and (24, ?). We can observe that as x increases, y also increases. This indicates a positive correlation between the variables. Additionally, we can see that the ratio of y to x remains constant for each data point.
Now, let's analyze the answer options:
A. A line passes through the point (0, 0) and continues through the point (3, 12).
This answer option does not align with the given data because there is no data point with an x-value of 3 and a corresponding y-value of 12.
B. A line passes through the point (0, 0) and continues through the point (2, 8).
This answer option aligns with the given data because (2, 8) is a valid data point from the table, and the line passes through the origin (0, 0).
C. A line passes through the point (0, 0) and continues through the point (6, 24).
This answer option does not align with the given data because there is no data point with an x-value of 6 and a corresponding y-value of 24.
D. A line passes through the point (0, 0) and continues through the point (12, 3).
This answer option aligns with the given data because (12, 3) is a valid data point from the table, and the line passes through the origin (0, 0).
Based on the analysis, the correct answer is option D: A line passes through the point (0, 0) and continues through the point (12, 3). This accurately represents the graph of the proportional relationship given in the table.
For the second question, I'm sorry, but you didn't provide the multiple-choice options or the complete question. Could you please provide the question and options so that I can assist you further?
for more such question on point visit
https://brainly.com/question/1859113
#SPJ8
Match each graph with the statement that best describes it. (Question #1)
A. Tim is not moving
B. Tim is walking at a constant rate
C. Tim changes direction as time goes on
D. Tim is walking at a constant rate
what is the perpendicular and parallel lines of y= -2 -4x
y=1/4x-2 is a perpendicular line and y=-4x+3 is a parallel line.
The equation y= -2 -4x in the form of slope intercept form y=mx+b is y=-4x-2.
Where m represents the slope and y intercept is -2.
The slope of a line perpendicular to another line is the negative reciprocal of the slope of the given line.
The negative reciprocal of -4 is 1/4.
Therefore, the slope of the perpendicular line is 1/4.
The perpendicular line is y=1/4x-2.
We know that the parallel lines have same slope.
y=-4x+3
Hence, y=1/4x-2 is a perpendicular line and y=-4x+3 is a parallel line.
To learn more on slope of line click:
https://brainly.com/question/16180119
#SPJ1
Roselyn is driving to visit her family, who live 150 kilometers away. Her average speed is 60 kilometers per hour. The car's tank has 20 liters of fuel at the beginning of the drive, and its fuel efficiency is 6 kilometers per liter. Fuel costs 0.60 dollars per liter. How long can Roselyn drive before she runs out of fuel?
Roselyn can drive a distance until she runs out of fuel for a time of 2.5 hours or until she spends all the fuel, whichever comes first.Roselyn can travel 120 km before running out
Distance travelled with 20 l of petrol in solution and final answer.
Roselyn's average speed is 60 kilometers per hour, and she needs to travel 150 kilometers to reach her family's place. Therefore, she will require a total of 150/60 = 2.5 hours to complete the journey.
The car's fuel efficiency is 6 kilometers per liter, meaning it consumes 1/6 liters of fuel per kilometer. To determine the total fuel required, we multiply the fuel consumption rate by the total distance: 150 * (1/6) = 25 liters of fuel.
Since the car's tank has 20 liters of fuel at the beginning of the drive, Roselyn will need an additional 25 - 20 = 5 liters of fuel to complete the journey.
As fuel costs 0.60 dollars per liter, Roselyn will need to spend a total of 5 * 0.60 = 3 dollars to purchase the necessary fuel.
Therefore, Roselyn can drive until she runs out of fuel for a time of 2.5 hours or until she spends all the fuel, whichever comes first.
To learn more about : distance
https://brainly.com/question/26046491
#SPJ11
I need help with question 1 please. I’ll mark brainliest
Answer:
neHfzrusufsfisjfsjgdjtxktxkthkdkgdkgigcktxiyxkgxtixitzkfxkfxit
Step-by-step explanation:
mekhhggggggggggty
Nicole made $264 for 12 hours of work.
At the same rate, how many hours would she have to work to make $154
Answer:
12 5/6 hours
Step-by-step explanation:
154 ÷ 12 = 12.833333333333= 77/6 = 12 5/6
Is the answer 4? I’m not sure if it’s right
Answer:
yes im pretty sure correct me if im wrong. Good luck!!!!!
Step-by-step explanation:
P
(2) ×
(x) and state any values that cannot be included in the domain of
P(x) = 3x² - 4x + 12;
Find
Q(x)=x-1
P
Q
(x).
The solution to the polynomial function is P(Q(x)) = 3x² - 10x + 19.
How The answer was obtainedFirst, to find P(2x), we substitute 2x for x in the expression for P(x):
P(2x) = 3(2x)² - 4(2x) + 12
= 3(4x²) - 8x + 12
= 12x² - 8x + 12
To find the domain of P(x), we need to determine if there are any values of x that would make the expression undefined. Since P(x) is a polynomial function, it is defined for all real numbers.
Next, to find P(Q(x)), we substitute Q(x) = x - 1 into the expression for P(x):
P(Q(x)) = 3(Q(x))² - 4(Q(x)) + 12
= 3(x-1)² - 4(x-1) + 12
= 3(x² - 2x + 1) - 4x + 4 + 12
= 3x² - 10x + 19
Therefore, P(Q(x)) = 3x² - 10x + 19.
Learn more on Polynomial functions here https://brainly.com/question/2833285
#SPJ1
What is the reference angle for the angle with the measure 2x/3
The reference angle for the angle with the measure 2x/3 is 54⁰
How to determine the reference angle?You should understand that a reference angle is the acute angle to a given angle.
The given angle is 2x/3
We should understand that since the angle has the variable x
= x + 2x/3 = 90⁰
Simplifying the fraction to have
(3x+2x)/3 = 90
Cross and multiply we have 5x=270⁰
Making x the subject
x= 270/5
x=54⁰
Therefore, the reference angle with the measure 2x/3 is = 54⁰
Learn more about reference angles on https://brainly.com/question/1603873
#SPJ1
simplify using PEMDAS
5x + 3x -9x =
Answer:
-1x
Step-by-step explanation:
P
E
M
D
Add 5x+3x=8x
S-9x -1
Answer: -x
Step-by-step explanation:
consider the following probability distribution: 1 2 3 4 5 0.1 0.15 0.40 0.25 0.10 find (write it up to second decimal place).
The mean value is 1.19
x p(x) x*p(x) X^2p(x)
1 0.1 0.1 0.1
2 0.15 0.3 0.6
3 0.4 1.2 3.6
4 0.25 1 4
5 0.1 0.5 2.5
Sum 1 3.1 10.8
Mean =Σx * p(x)
u=3.1
Variance=σ^2
=Σx*p(x)-u^2
=10.8-(3.1)^2 =1 .19
A probability distribution is a frequency distribution that has been idealised. A frequency distribution is a description of a particular sample or dataset. It is the number of times each possible variable value appears in the dataset.
The probability of occurrence determines how many times a value appears in a sample. Probability is a number between 0 and 1 that indicates the likelihood of an event occurring:
To learn more about probability distribution
https://brainly.com/question/14210034
#SPJ4
Connor is splitting of ice cream with members of the team. If the ice cream is split evenly, how many will each person get? Explain.
Answer:
each person gets 1/4
Step-by-step explanation:
Find the volume of the cone. Use 3.14 for π. Remember that there is a formula for calculating the volume of a cone.
The volume of the cone is 314cm³
What is volume of a cone?A cone is a shape formed by using a set of line segments or the lines which connects a common point, called the apex or vertex, to all the points of a circular base(which does not contain the apex). The distance from the vertex of the cone to the base is the height of the cone.
The volume of the cone is 1/3πr²h
h²= 13²-5²
h = √169 - 25
h = √144
h = 12 cm
V = 1/3πr²h
V = 1/3 ×3.14 × 5² × 12
V = 942/3
V = 314 cm³
therefore the volume of the cone is 314cm³
learn more about volume of a cone from
https://brainly.com/question/1082469
#SPJ1
Alternate angles explain
Here is the required diagram .
\(\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\multiput(0,0)(0,3){2}{\line(1,0){4}}\qbezier(0,0)(0,0)(4,3)\qbezier(1,0)(1.2,0.35)(0.8,0.6)\qbezier(3,3)(2.8,2.65)(3.2,2.4)\put(2.5,0.02){\vector(1,0){0}}\put(1.5,3.02){\vector(-1,0){0}}\end{picture}\)
Alternate angles are equal .
John wishes to choose a combination of two types of cereals for breakfast - Cereal A and Cereal B. A small box (one serving) of Cereal A costs $0.50 and contains 10 units of vitamins, 5 units of minerals, and 15 calories. A small box (one serving) of Cereal B costs $0.40 and contains 5 units of vitamins, 10 units of minerals, and 15 calories. John wants to buy enough boxes to have at least 500 units of vitamins, 600 units of minerals, and 1200 calories. How many boxes of each cereal should he buy to minimize his cost?
Let's assume that John buys x boxes of Cereal A and y boxes of Cereal B. Then, we can write the following system of inequalities based on the nutrient and calorie requirements:
10x + 5y ≥ 500 (minimum 500 units of vitamins)
5x + 10y ≥ 600 (minimum 600 units of minerals)
15x + 15y ≥ 1200 (minimum 1200 calories)
We want to minimize the cost, which is given by:
0.5x + 0.4y
This is a linear programming problem, which we can solve using a graphical method. First, we can rewrite the inequalities as equations:
10x + 5y = 500
5x + 10y = 600
15x + 15y = 1200
Then, we can plot these lines on a graph and shade the feasible region (i.e., the region that satisfies all three inequalities). The feasible region is the area below the lines and to the right of the y-axis.
Next, we can calculate the value of the cost function at each corner point of the feasible region:
Corner point A: (20, 40) -> Cost = 20
Corner point B: (40, 25) -> Cost = 25
Corner point C: (60, 0) -> Cost = 30
Therefore, the minimum cost is $20, which occurs when John buys 20 boxes of Cereal A and 40 boxes of Cereal B.
QUICK HELP ME DUE IN 3 MINUTES 123456789x123456789
Answer:
1.5241579e+16 is the answer
i d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d kv
A software development company is voting to elect a president, a secretary, a treasurer, and three directors. If a total of 11 qualified candidates applied for these positions, in how many ways can the positions be filled?
The ways to elect the candidates from the total is 462
How to determine the ways of selection?From the question, we have
Total number of candidate, n = 11Numbers to selection, r = 6 i.e. the president, a secretary, a treasurer, and three directorsThe number of ways of selection could be drawn is calculated using the following combination formula
Total = ⁿCᵣ
Where
n = 11 and r = 6
Substitute the known values in the above equation
Total = ¹¹C₆
Apply the combination formula
ⁿCᵣ = n!/(n - r)!r!
So, we have
Total = 11!/5!6!
Evaluate
Total = 462
Hence, the number of ways is 462
Read more about combination at
brainly.com/question/11732255
#SPJ1
Hi there,i am having some trouble solving the following two questions relating to extrema and intervals:
We have the following function:
\(y=ln|x^2+x-20|\)The graph of this function is given by:
We know that a function is increasing is the first derivative is greater than zero. The derivative of the given function is given by
\(\frac{dy}{dx}=\frac{2x+1}{x^2+x-20}\)Then, the condition is given by
\(\frac{dy}{dx}=\frac{2x+1}{x^{2}+x-20}>0\)which implies that
\(\begin{gathered} 2x+1>0 \\ then \\ x<-\frac{1}{2} \end{gathered}\)By means of this result and the graph from above, f(x) is increasing for x in:
\((-5,-\frac{1}{2})\cup(4,\infty)\)Now, the function is decreasing when
\(\frac{dy}{dx}<0\)which give us
\(\begin{gathered} \frac{dy}{dx}=\frac{2x+1}{x^{2}+x-20}<0 \\ 2x+1<0 \\ then \\ x>-\frac{1}{2} \end{gathered}\)Then, by means of this result and the graph from above, the function is decreasing on the interval:
\((-\infty,-5)\cup(-\frac{1}{2},4)\)In order to find the local extremal values, we need to find the second derivative of the given function, that is,
\(\frac{d^2y}{dx^2}=\frac{d}{dx}(\frac{2x+1}{x^2+x-20})\)which gives
\(\frac{d^2y}{dx^2}=\frac{(x^2+x-20)(2)-(2x+1)(2x+1)}{(x^2+x-20)^2}\)or equivalently
\(\frac{d^2y}{dx^2}=\frac{2(x^2+x-20)-(4x^2+4x+1)}{(x^2+x-20)^2}\)which can be written as
\(\frac{d^2y}{dx^2}=\frac{2x^2+2x-40-4x^2-4x-1}{(x^2+x-20)^2}\)then, we get
\(\frac{d^2y}{dx^2}=\frac{-2x^2-2x-41}{(x^2+x-20)^2}\)From the above computations, the critical value point is obtained from the condition
\(\frac{dy}{dx}=\frac{2x+1}{x^{2}+x-20}=0\)which gives
\(\begin{gathered} 2x+1=0 \\ then \\ x=-\frac{1}{2} \end{gathered}\)This means that the critical point (maximum or minimum) is located at
\(x=-\frac{1}{2}\)In order to check if this value corresponds to a maximum or mininum, we need to substitute it into the second derivative result, that is,
\(\frac{d^{2}y}{dx^{2}}=\frac{-2(-\frac{1}{2})^2-2(-\frac{1}{2})-41}{((-\frac{1}{2})^2+(-\frac{1}{2})-20)^2}\)The denimator will be positive because we have it is raised to the power 2, so we need to check the numerator:
\(-2(-\frac{1}{2})^2-2(-\frac{1}{2})-41=-\frac{2}{4}+1-41=-40.5\)which is negative. This means that the second derivative evalueated at the critical point is negative:
\(\frac{d^2y}{dx^2}<0\)which tell us that the critical value of x= -1/2 corresponds to a maximum.
Since there is only one critical point, we get:
f(x) has a local minimum at x= DNE
f(x) has a local maximum at x= -1/2
Relative intensity of 9 decibels is how many times higher than that of 8 decibels
Answer:
what do you mean by land ?
The intensity of sound is proportional to the square of its amplitude.
Thus, if I9 and I8 are the intensities of sounds at 9 decibels and 8 decibels respectively, then:
I9/I8 = (10^(9/10))/(10^(8/10))
I9/I8 = 10^(0.1)
I9/I8 = 1.2589
Therefore, the relative intensity of 9 decibels is approximately 1.26 times higher than that of 8 decibels.
May I please have a Brainliest? I put a lot of thought and effort into my answers, so I would really appreciate it!
Round off 1,296,717 to 3 significant figures
Answer:6 1296720 1.29672 × 106
5 1296700 1.2967 × 106
4 1297000 1.297 × 106
3 1300000 1.30 × 106
2 1300000 1.3 × 106
1 1000000 1 × 106
Step-by-step explanation:
Jim bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $300 less than the desktop. He paid for the computers using two different financing plans. For the desktop the interest rate was 6% per year, and for the laptop it was 7% per year. The total finance charges for one year were $252. How much did each computer cost before finance charges?
L := laptop
D := desktop
before finance, equation 1:
\(L=D-300\)Di = 6% = 0.06 (desktop interest per year)
Li = 7% = 0.07 (laptop interest per year)
For one year, the total finance charge is (equation 2):
\((L\cdot Li)+(D\cdot Di)=252\)We substitute L (the equation 1) to the equation 2:
\(\begin{gathered} \lbrack(D-300)\cdot Li\rbrack+(D\cdot Di)=252 \\ (D\cdot Li)-(300\cdot Li)+(D\cdot Di)=252 \\ 0.07\cdot D+0.06\cdot D=252+(300)\cdot(0.07) \\ 0.13D=273 \\ D=\frac{273}{0.13} \\ D=2100 \end{gathered}\)Then we substitute the value D in equation 1 to find the laptop price:
\(L=D-300=2100-300=1800\)Therefore, the laptop and desktop prices are $1800 and $2100, respectively.
which of the following is the correct way to simplify
We need to apply the law of exponents. In this case we need to
Keep the base and add the exponents,
that is the third option.