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3 years ago

Subtract (x² + 5x – 6) – (3x^2 – 7x + 1). What is the difference?

Mathematics

1 answer:

Lorico [155]3 years ago

4 0

1. Distribute the Negative Signs
2. Combine like terms
-2x^2 + 12x-7

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If f(x) = 4x + 21 and g(x) = 2x + 2 what is f[g(7)]

Nana76 [90]

Answer:

we conclude:

$f(g(7)) =85$

Step-by-step explanation:

Given

$f(x) = 4x + 21$

$g(x) = 2x + 2$

To determine

$f(g(7)) =?$

In order to determine f(g(7)), the first step we need to do is to determine g(7)

so substitute x = 7 in g(x) = 2x + 2

$g(x) = 2x + 2$

$g(7) = 2(7) + 2$

$g(7) = 14 + 2$

$g(7) = 16$

so now we have

$f(g(7)) =f(16)$

The next step to do is to substitute x = 16 in f(x) = 4x + 21

$f(x) = 4x + 21$

$f(16) = 4(16) + 21$

$f(16) = 64 + 21$

$f(16) = 85$

so we have

$f(g(7)) =f(16)=85$

Therefore, we conclude:

$f(g(7)) =85$

6 0

3 years ago

Read 2 more answers

Okay HELP i have to questions in one problem.

tangare [24]

Answer:

1) To calculate length of fringe, we need to find the perimeter

The question does not clearly say how much is length and width

Assuming length = 245 and width = 234 inches

P = 2(length + width)

P = 2 ( 245 + 234)

P = 2 (479)

P = 958 inches

2) To calculate length of fringe, when length is increased by 33 inches

P = 2 ( l + w)

P = 2 (278 + 234)

P = 2 x 512

P = 1024 inches

7 0

4 years ago

150- (2+z) with the exponent 3

scZoUnD [109]

Answer:

Step-by-step explanation:

z = 3+i

7 0

2 years ago

I think of a number,i added 4 to the number, the result is 20<br>

denis23 [38]

The answer is 16
Because if you do 20-4 then its 16

6 0

3 years ago

Read 2 more answers

Which measurement is most accurate to describe the amount that a teacup can hold?

Bingel [31]

The answer is 175 mL

please let me know if am wrong.

8 0

4 years ago