3 years ago

Last week Betsy made 80 on her quiz. This week she made 76. What is the percent of decrease in

Mathematics

1 answer:

GalinKa [24]3 years ago

4 0

The answer is d. 4%

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Write the expression in simplest form using only positive exponents (x^2/3y^-1/2)^-6

hoa [83]

$\left( \cfrac{x^2}{3y^{- \frac{1}{2} }} \right)^{-6}=\left( \cfrac{3y^{- \frac{1}{2} }}{x^2} \right)^{6}=\left( \cfrac{3}{x^2y^{ \frac{1}{2} }} \right)^{6}= \cfrac{3^6}{x^{2*6}y^{ \frac{1}{2}*6 }} = \cfrac{729}{x^{12}y^3}$

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3 years ago

5 times what equals 200

KATRIN_1 [288]

200 divided by 5 equals 40.
So therefore, 40 times 5 equals 200.

8 0

3 years ago

Read 2 more answers

SERIOUS MATH HELP PLEAZE<br> SHOW WORK OR AN EXPLANATION<br> HELPPPPPPPPPPPP

Natali5045456 [20]

Answer:

x=3

Step-by-step explanation:

x^2 = 6x - 9

Subtract 6x from each side

x^2 -6x = -9

Add 9 to each side

x^2 -6x+9 = 0

Factor

what 2 numbers multiply to 9 and add to -6

-3*-3 = 9

-3+-3 =-6

(x-3)(x-3) = 0

Using the zero product property

x-3 =0 x-3=0

x=3 with multiplicity 2

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3 years ago

I mean this. when write 1.

yawa3891 [41]

If the question is 7 x 200+50+6 it equals 1792

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3 years ago

brine's kitchen has an area of 81 square feet. the kitchen is 9 times as many square feet as brine's pantry. if the pantry is 3

maks197457 [2]

So 81/9=9 so area of pantry is 9

3 times x=9
3x=9
divide both sides by 3
x=3

legnth/width=3

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3 years ago