3 years ago

How do you get the answer for this question? I can't figure it out:( .

Mathematics

2 answers:

just olya [345]3 years ago

4 0

I need the answer for this one too

Lynna [10]3 years ago

3 0

Hope that helps you guy's out

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From delta math:<br> Subtract -2x^2 + 3x - 9 from 8x^2 + 10x - 10

Leto [7]

Answer:

$10x^2 + 7x - 1$

Step-by-step explanation:

Step 1: Build the expression in numerical form.

$(8x^2 +10x - 10) - (-2x^2 + 3x - 9)$

Step 2: Distribute the negative sign.

$8x^2 +10x -10 + (-1)(-2x^2) + (-1)(3x) + (-1)(-9)$
$8x^2 + 10x - 10 + 2x^2 + (-3x) + 9$

Step 3: Combine like terms.

$(8x^2 +2x^2) + (10x -3x) + (-10+9)$
$10x^2 +7x -1$

Therefore, the answer is $10x^2 + 7x -1$ .

4 0

3 years ago

I need help with this because I'm not very good at understanding this.

HACTEHA [7]

Answer:

the initial value is 2

Step-by-step explanation:

"y=mx+b" is the equation

"b" is the initial value, and there is no "b" value

4 0

3 years ago

Hello someone please help me

Naya [18.7K]

Answer:

(2, -8)

Step-by-step explanation:

6 0

3 years ago

3x -4y -2 +2x+6 simplify each expression

jasenka [17]

Answer:

5x-4y+4

Step-by-step explanation:

3x-4y-2+2x+6

Gathers like terms together:

3x+2x= 5x

-4y= -4y

-2+6= 4

Put it together:

5x-4y+4

8 0

3 years ago

Jeremy buy a new computer with 14 optional features some of the features cost $28.50 and some cost $110.99 he if he spent a tota

makkiz [27]

28.50x + 110.99(14-x)=811.45

distribute

28.50 x + 1553.86-110.99x =811.45

combine like terms

-82.49x+1553.86=811.45

subtract 1553.86 from each side

-82.49x =-742.41

divide by -82.49

x=9

He bought 9 of the 28.50 features and 5 of the 110.99 features

4 0

3 years ago

How do you get the answer for this question? I can't figure it out:( .​

How do you get the answer for this question? I can't figure it out:( .