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3 years ago

8

1. Choose the correct simplification of the expression −5x2(4x − 6x2 − 3).

1 answer:

nlexa [21]3 years ago

6 0

1) <span>30x4 − 20x3 + 15x2

This is the answer to 1. Don't forget to rearrange the terms in ascending order. That can trip people up.

2) </span><span>x3 + 8x2 + 13

Don't forget to check the terms sign. The subtraction symbol switches them all. </span>

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10. You used 8 cups of sugar while baking three dozen cookies and one cake. If you used 1.25 cups of sugar for the cake and the

DanielleElmas [232]

Answer:

I got 5.65

Step-by-step explanation:

36/8= 4.5, 4.5 +1.25= 5.65

8 0

2 years ago

HELP HELP HELP LLEASE!!!!

Luda [366]

Answer:

1/9

Step-by-step explanation:

Only 1 out of the 9 options has the double pepperoni outcome

7 0

2 years ago

According to the fundamental theorem of algebra how many roots exist for the polynomial function f(x)=8x^7-x^5+x^3+6

mojhsa [17]

Answer:

7

Step-by-step explanation:

This is a 7th degree polynomial. There should be 7 roots. Note how degree of poly = number of roots.

5 0

2 years ago

Read 2 more answers

Put the equation in standard form with a positive x coefficient. 2y+5=-4(x+2)

umka21 [38]

The standard form of equation is: 4x+2y = -13

Step-by-step explanation:

the standard form of a linear equation in two variables is given by:

$ax+by = c$

Given equation is:

$2y+5=-4(x+2)$

Distributing -4 into the round bracket

$2y+5 = -4x-8$

Adding 4x on both sides

$4x+2y+5 = -4x-8+4x\\4x+2y+5 = -8$

subtracting 5 from both sides

$4x+2y+5-5 = -8-5\\4x+2y = -13$

The standard form of equation is: 4x+2y = -13

Keywords: Linear equation, variables

Learn more about linear equations at:

#LearnwithBrainly

6 0

3 years ago

5a – 10b = 45, when b = 3

balandron [24]

Well, since you have the value of b, the first thing you want to do is substitute that value in for b.

5a - 10(3) = 45

10*3 = 30

5a - 30 = 45

Now, to get the variable by itself (a) you have to + 30 because you have to reverse the subtraction.

5a = 75

Now, you divide by 5 to finish getting a by itself.

a = 15

Hope this helps!

6 0

2 years ago

Read 2 more answers