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maw [93]
3 years ago
8

If f(x) =- 2x + 5, find f(4x)​

Mathematics
1 answer:
adelina 88 [10]3 years ago
8 0

Answer:

f(4x)=-8x+5

Step-by-step explanation:

We are given the function:

f(x)=-2x+5

And we want to find:

f(4x)

So, by substitution, we acquire:

f(4x)=-2(4x)+5

Multiply. So, our answer is:

f(4x)=-8x+5

You might be interested in
If the sum of a number and its square is 182, what is the number ?
vivado [14]

Answer:

-14 or 13

Step-by-step explanation:

x + x^2 = 182  

x^2 + x - 182 = 0  

rearrange and solve by completing the square  

x^2 + x = 182  

x^2 + x + 1/4 = 182.25  

(x + 1/2)(x + 1/2) = 182.25  

(x + 1/2)^2 = 182.25  

x + 1/2 = root 182.25  

x = + or - root 182.25 - 0.5  

x = + or - 13.5 - 0.5  

x = 13 or x = - 14

5 0
3 years ago
Read 2 more answers
If y varies inversely as x, and y= 4 when x=6, then determine the value of y when x=5.
EastWind [94]

Answer:

y = 4.8

Step-by-step explanation:

y = k/x

4 = k/6

k = 24

y = 24/5

y = 4.8

3 0
3 years ago
A total feet of snow falls over three days. On the first day, 1/6 of the total snow falls. One the second day, 7/12 of the total
Marta_Voda [28]

Answer:

If it wants to know the total on day 3, then the answer is 3/12, or 1/4 (fully simplified).

Step-by-step explanation:

1/6 + 7/12 = 3/4

This means that you would need 1/4 more inches of snow. 3/12 is the answer before simplification, and 1/4 is the fully simplified answer.

4 0
2 years ago
Which choice is equivalent to the expression below? 2sqrt(7) + 8sqrt(7)
dexar [7]

Answer:

Dear Twinkie

Answer to your query is provided below

10√7 is the expression equivalent for 2√7+8√7.

5 0
3 years ago
Work out the value of: xy - 3 When x = -2 and y = -4
stich3 [128]
(-2 × -4) -3
(8) -3
5
7 0
4 years ago
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