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3 years ago

Need help please.I forgot this.

Mathematics

1 answer:

Sonbull [250]3 years ago

8 0

The associative property lets you move the parentheses.

6. (-20×50)×-29 = -1000×-29 = 29,000

7. (5×10)×18 = 50×18 = 900

8. 400 + (60 + 98) = 400 +158 = 558

9. 3×(20×5) = 3×100 = 300

10. (18 + 9) +91 = 27 +91 = 118

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Evaluate a + 6 for a = 10

denis-greek [22]

If a = 10, then the equation would be 10+6.
The answer would be 16.
Hope this helps! :D

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4 years ago

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Suppose that an individual has a body fat percentage of 18.8% and weighs 131 pounds. how many pounds of her weight is made up of

balu736 [363]

X weight 131
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18.8% 100%

Cross multiply and get 24.6 pounds

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3 years ago

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Which of the following are solutions to 2x2 – 8x - 90? Select all that apply.

Bond [772]

Answer:

x=-5, x=9

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$2x^{2} -8x-90$

equate to zero

$2x^{2} -8x-90=0$

$2=-1\\b=-8\\c=-90$

substitute in the formula

$x=\frac{-(-8)\pm\sqrt{-8^{2}-4(2)(-90)}} {2(2)}$

$x=\frac{8\pm\sqrt{784}} {4}$

$x=\frac{8\pm28} {4}$

$x=\frac{8+28} {4}=9$

$x=\frac{8-28} {4}=-5$

therefore

The solutions are x=-5, x=9

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3 years ago

The guest at a party shared five pies equally in each person get 1/8 of a pie how many guest were at the party?

masya89 [10]

Answer: 40 people

Step-by-step explanation:

There were 5 pies in the party and each person that came got an equal share of 1/8.

The number of people who were there is therefore:

= Number of pies / Share each person got

= 5 ÷ 1/8

= 5 * 8/1

= 40 people

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3 years ago

PLEASE HELP ME WITH THIS SUM WILL MARK YOU AS BRAINLIEST

Korvikt [17]

Answer: 2u^3+7u^2+25u+72+ 214/u-3

Remainder is 214/u-3

Step-by-step explanation:

As the paper said, instead of using long division, synthetic division is a much faster alternative to find the answer. I was got the answer above :) Hope this helps out!

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4 years ago

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