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4 years ago

PLEAAAAAAASE HELP MIDTERM!! GOTTA GET RIGHT!

1 answer:

8 0

Just add up the two functions
(f+g)(x)=(7x^3-2x-12)+(-3x^3-8x^2+10x)
(f+g)(x)=4x^3-8x^2+8x-12
unfortunately you choice isn't correct. it's the fourth choice

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3 years ago

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Ede4ka [16]

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3 years ago

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25 points! Answer both! please leave explanation!

aliya0001 [1]

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4 0

4 years ago

Can someone please give me the answers

Angelina_Jolie [31]

Answer:

1) 3

2)9

3)18

4)18k

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3 0

3 years ago

Describe the properties of equality that Kira used. The first step is to use the property of equality to combine the constant te

Nikitich [7]

Answer:

1. Subtraction property

2. Division property

Step-by-step explanation:

Question has missing details.

Kira's steps are:

$\frac{7}{2} - 2x = \frac{11}{2}$

$\frac{7}{2}- \frac{7}{2} - 2x = \frac{11}{2}- \frac{7}{2}$

$- 2x \div -2= \frac{4}{2} \div -2$

$x = -1$

Required

The properties used

For the first step, we have:

$\frac{7}{2} - 2x = \frac{11}{2}$

To get to step 2, Kira subtracted $\frac{7}{2}$ from both sides.

i.e.

$\frac{7}{2}- \frac{7}{2} - 2x = \frac{11}{2}- \frac{7}{2}$

This property is subtraction property

In the second step, where x is isolated.

$- 2x \div -2= \frac{4}{2} \div -2$

Both sides of the equation were divided by -2 to give:

$x = -1$

This property is division property

8 0

3 years ago