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Andrei [34K]
2 years ago
9

Evaluate function expressions

Mathematics
2 answers:
Andrews [41]2 years ago
6 0

Answer: -24

Step-by-step explanation:

We should first find the outputs to the functions f and g with inputs 3 and -1 respectively. We can do this by looking at the graph and finding the y value for each desired x value.

Thus, we can see that f(3) = -2 and g(-1) is 6.

We can replace these into the expression to get

-6*-2-6*6

We should first multiply, so we get

12 -36

-24

Hence, the answer is -24.

Dominik [7]2 years ago
3 0

Answer:

Your answer is -24.

Step-by-step explanation:

Given information.

The graph of f(x) and g(x)

Solving for

-6 * f(3) - 6 * g(-1) = ?

think of f(x) = y as x is the input and y is the output.

Input a value of x into f(x) or g(x) gets us a y value.

Looking at the graph of f(3) = -2 and the graph of g(-1) = 6

Now substitute that and solve.

-6 * -2 -6 * 6 = 12 - 36 = -24

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Find the approximate solution(s) to each of the following equations graphically. Use technology to support your
Slav-nsk [51]

Answer: x = 2.36

Step-by-step explanation:

Graphic solution is attached.

approximate solution is 2.36 according to the graph

Verifying the solution as asked:

x + 2 = x³ - 2x - 4

2.36 + 2 = 2.36³ - 2*2.36 - 4

4.36 = 13.14 - 4.72 - 4

4.36 ≈ 4.42

If we round to 4.4 it's clearer that this is the right solution.

3 0
3 years ago
What is the velocity of a wave with a frequency of 4.0 Hz and a wavelength of 0.50 m/wave?
serg [7]

Answer:

v=fa

Step-by-step explanation:

(4)(.5)=2

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4 0
3 years ago
Need help due tmr :)
aliina [53]
A.) height(h), diameter Sphere(d) = 14.6 in., diameter Cylinder (l) = 11 in.

d^2 = h^2 + l^2
h^2 = d^2 - l^2
h^2 = 14.6^2 - 11^2
h^2 = 213.16 - 121
h^2 = 92.16
h = 9.6 in.


b.) V = (4/3)(pi)(r^3)
r = d/2 = 14.6/2 = 7.3 in.

V = (4/3)(pi)(7.3^3)
V = 518.6893pi in^3
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3 years ago
What is the equation of the line with a slope of 1/2 that passes through the point (-8, -2)?
Luba_88 [7]

Answer:

The answer is

y =  \frac{1}{2} x + 2 \\

Step-by-step explanation:

To find an equation of a line when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

From the question we have

y + 2 =  \frac{1}{2} (x + 8) \\ y + 2 =  \frac{1}{2} x + 4 \\ y =  \frac{1}{2} x + 4 - 2

We have the final answer as

y =  \frac{1}{2} x + 2 \\

Hope this helps you

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3 years ago
If 35% of a number is 140 what is that number
Katena32 [7]
Answer: The number is 47.6
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3 years ago
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