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3 years ago

Given that f(x)=2x+1 and g(x)=-5+2, solve for f(g(x)) when x=3

1 answer:

6 0

When given a function such as h(x) = 3x, the value of h(x) is the y value when graphed. If we are asked to find h(x) at x = 4, all we do is plug 4 in for x.

h(4) = 12

We do the same thing with f(g(x)). First plug x=3 into g(x).

g(3) = -5(3) + 2 = -13

Then plug -13 into f(x)

f(-13) = 2(-13) + 1 = -25

The answer is -25.

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Will make brainliest answer!!

ch4aika [34]

Answer:

C. 5x - 1

Step-by-step explanation:

<h3>Given</h3>

f(x) = 3x-2 and g(x) = 2x+1

(f+g)(x)

<h3>Solution</h3>

(f+g)(x) =
f(x) + g(x) =
3x - 2 + 2x + 1 =
5x - 1

3 0

2 years ago

Rodney is making three pizzas. The recipe says that, for one pizza, he needs 2 cups of flour, 2 teaspoons of instant active dry

Mamont248 [21]

Answer:

14 cups of flour.

Step-by-step explanation:

Rodney is making three pizzas.

The recipe says that for one pizza he needs flour = 2 cups

Rodney buy a bag of flour containing = 20 cups flour

Rodney needs flour for three pizzas = 3 × 2 = 6 cups

He will have left over flour after making the pizzas = 20 - 6

= 14 cups of flour.

Rodney will have left over 14 cups of flour after making the pizzas.

6 0

3 years ago

A nightclub has approximated the demand for their Thursday night drink special by p^2+200q^2=177, where p is the price (in dol

Irina18 [472]

Answer:

Step-by-step explanation:

Given the approximate demand function of night drink expressed as;

p^2+200q^2=177,

p is the price (in dollars) and;

q is the quantity demanded (in thousands).

Given

p = $7

q = 800

Required

dq/dp

Differentiating the function implicitly with respect to p shown;

2p + 400d dq/dp = 0

400q dq/dp = -2p

200qdq/dp = -p

dq/dp = -p/100q

substitute p and q into the resulting equation;

dq/dp = -7/100(800)

dq/dp = -7/80000

dq/dp = -0.0000875

This means that the rate of change of quantity demanded with respect to the price is -0.0000875

8 0

3 years ago

A sailboat started his journey at 6:30 am and reached his destination at 11:45 pm.If the distance of the journey was 1276.5, wha

attashe74 [19]

Answer:

74 mph

Step-by-step explanation:

step 1

Find the total time

A sailboat started his journey at 6:30 am and reached his destination at 11:45 pm

from 6:30 am to 12:00 pm ----> there are 5 hours + 30 minutes=5.5 hours

from 12:00 pm to 11:45 pm ----> there are 11 hours + 45 minutes=11.75 hours

The total time is

5.5+11.75=17.25 hours

step 2

Find the average speed

we know that

The average speed is equal to divide the total distance by the total time

$speed=\frac{1,276.5}{17.25}= 74\ mph$

4 0

3 years ago

Please help asap 25 pts

USPshnik [31]

The answer is C.

Just plug in x = 1 for each of them. The correct one is the one that gives y = 5, which is C.

5 0

3 years ago