All categories

3 years ago

13. Let f(x) = 5x + 10 and g(x) = 2* a) Find f(2) b) Find g(2) c) Find f(2) + g(2)

Mathematics

1 answer:

Alecsey [184]3 years ago

7 0

Answer:

A) f(2) = 20

B) g(2) = 2

C) f(2) + g(2) = 22

Step-by-step explanation:

For part A, you change the x to become 2, to have the equation of 5(2)+10. You then solve in order to get 20.

For part B, I'm not exactly sure what the equation is, but you do the same thing for part A. Since there is no x variable then just keep the answer you have. Meaning it is 2

Finally, part C is adding your answers from part A and part B to get the final answer of 22.

You might be interested in

Quick algebra 1 question for some points!

Kazeer [188]

$\frac{y}{x} = \frac{4}{ - 3} = \frac{8}{ - 6} = \frac{12}{ - 9} \\ this \: relation \: holds \: so \: y \: varies \\ directly \: with \: x$

$\frac{ 4}{3} m = \frac{8}{ - 6} \\ m = \frac{ \frac{ - 8}{6} }{ \frac{3}{ - 4} } = \frac{8 \times 4}{6 \times 3} = \frac{32}{18} = 2 \\ multipling \: by \: 2$

$\frac{y}{x} = \frac{ - 40}{ - 0.5} = \frac{8}{2.5} = \frac{5}{4} \\ \frac{y}{x} = 80 = 3.2 = 1.25 \\ this \: is \: untrue \: so \: y \: is \: not \\ varying \: directly \: with \: x$

$no \: constant \: of \: variation$

<h2>4)</h2><h2> $\frac{y}{x} = \frac{21}{3} = \frac{31.5}{4.5} = \frac{38.5}{5.5 \\ } \\ \frac{y}{x} = 7 = 7 = 7 \\ y \: varies \: directl y\: with \: x \\ consant \: of \: var = \frac{y}{x} = 7$ </h2><h2>5)</h2>

$\frac{y}{x} = \frac{30}{6} = \frac{35}{7} = \frac{96}{8} \\ \frac{y}{x} = 5 = 5 = 12 \\ y \: does \: not \: vary \: directly \: with \: x$

7 0

2 years ago

The following show a change of scale made by an architect in one of his drawings. Old: 1 inch = 16 meters. New: 1 inch = 2 meter

OleMash [197]

Answer:

8 to 1

Step-by-step explanation:

16 divided by 2 is 8. 2 divided by 2 is 1. 8 to 1 is your answer, hope it helps!

7 0

3 years ago

Read 2 more answers

Brian irons 2/9 of his shirt in 3 3/5 minutes Brian irons at a constant rate at this rate how much of his shirt does he iron eac

makvit [3.9K]

You divided 3 3 \5 with 2 \9 and you will get your answer
you also convert 3 3\5 into a fraction

3 0

4 years ago

Find the value of x in the shape below.

stepladder [879]

Answer:

30 degrees

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

8 0

3 years ago

Read 2 more answers

Is x=1 and y=8 parallel, perpendicular, or neither

Lemur [1.5K]

Answer:

perpendicular

Step-by-step explanation:

They will intersect at a 90 degree angle as x= is vertical and y= is horizontal

4 0

3 years ago