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2 years ago

F(-4) if f(x) = -X-5. help please!

Mathematics

1 answer:

marissa [1.9K]2 years ago

5 0

Answer: -1

Step-by-step explanation:

f(-4)=4-5

Since your x is negative and this problem requires -x to find y, you switch the sign to positive.

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I don't know this help me

koban [17]

Answer:

The answer is 8600

Step-by-step explanation:

because when you subtract 5160 by 4300 you get 860 so just add that from 5160 until you get to the 12th year because every year is 860. brainliest pls

6 0

2 years ago

What is the difference? StartFraction x Over x squared minus 16 EndFraction minus StartFraction 3 Over x minus 4 EndFraction Sta

katovenus [111]

Answer:

The option "StartFraction negative 2 (x + 6) Over (x + 4) (x minus 4) EndFraction" is correct

That is $\frac{-2(x+6)}{(x+4)(x-4)}$

Therefore $\frac{x}{x^2-16}-\frac{3}{x-4}=\frac{-2(x+6)}{(x+4)(x-4)}$

Step-by-step explanation:

Given problem is StartFraction x Over x squared minus 16 EndFraction minus StartFraction 3 Over x minus 4 EndFraction

It can be written as below :

$\frac{x}{x^2-16}-\frac{3}{x-4}$

To solve the given expression

$\frac{x}{x^2-16}-\frac{3}{x-4}$

$=\frac{x}{x^2-4^2}-\frac{3}{x-4}$

$=\frac{x}{(x+4)(x-4)}-\frac{3}{x-4}$ ( using the property $a^2-b^2=(a+b)(a-b)$ )

$=\frac{x-3(x+4)}{(x+4)(x-4)}$

$=\frac{x-3x-12}{(x+4)(x-4)}$ ( by using distributive property )

$=\frac{-2x-12}{(x+4)(x-4)}$

$=\frac{-2(x+6)}{(x+4)(x-4)}$

$\frac{x}{x^2-16}-\frac{3}{x-4}=\frac{-2(x+6)}{(x+4)(x-4)}$

Therefore $\frac{x}{x^2-16}-\frac{3}{x-4}=\frac{-2(x+6)}{(x+4)(x-4)}$

Therefore the option "StartFraction negative 2 (x + 6) Over (x + 4) (x minus 4) EndFraction" is correct

That is $\frac{-2(x+6)}{(x+4)(x-4)}$

5 0

2 years ago

Read 2 more answers

Ty needs to cut strips of wrapping paper that are each 9 inches wide. if Ty has 2 rolls of wrapping paper that are each 15 feet

stiks02 [169]

Find the total length in inches of one of the rolls:
15*12=180 inches.

Now multiply the length of one roll (180 inches) by 2 to find the total length:
180*2=360 inches.

Divide by the width of the strips to find the total number of strips:
360/9=40 strips

6 0

2 years ago

Earning for 3weeks from a part time job shown in the table . He is offered a job that will pay 7.25 per hour . Which job pays be

xz_007 [3.2K]

7.25 hour is better because multiply by eleven and its 79.75 which is higher than the on on the table

3 0

3 years ago

My question is y = 4x + 1 and my options are<br>a. 4, 3 <br>b. 4,1<br>c. 1,4<br>d. 3,1

Akimi4 [234]

Answer:

B. 4,1

Step-by-step explanation: