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Ludmilka [50]
3 years ago
11

Solve. x^-9 y^3 / x^-7 y^8

Mathematics
1 answer:
aniked [119]3 years ago
3 0

\dfrac{x^{-9}y^3}{x^{-7}y^8}=x^{-9-(-7)}y^{3-8}=x^{-2}y^{-5}=\dfrac{1}{x^2y^5}\\\\Used:\\\\\dfrac{a^n}{a^m}=a^{n-m}\\\\a^{-n}=\dfrac{1}{a^n}

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At Becky's Restaurant, 10 out of 25 customers order wheat rolls. The rest of the customers order cornbread. Which does NOT repre
LekaFEV [45]

Answer:

C. 25 ÷ 10

Step-by-step explanation:

A. 10/25

B. 2/5

C. 25 ÷ 10

D. 0.4

Total customers at Becky's restaurant = 25

Customers who order wheat rolls = 10

It means 10 out of 25 customers order wheat rolls

That is

10 / 25

Dividing both numerator and denominator by 5

= 2 / 5

2/5 in decimal

= 0.4

The option Which does NOT represent the part of the customers who order wheat rolls

is 25/10

Option C. 25 ÷ 10

8 0
3 years ago
A bracelet is now reduced to £600. This is 80% of the original price.
Tems11 [23]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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Simplify<br><br> a+a+a=<br> 4b-b<br> 3x2+x2
Reika [66]
<h2>Good morning,</h2>

<em><u>__________________</u></em>

<em><u>Answer</u></em>:

a+a+a = 3a.

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<u><em>explanation</em></u>

a+a+a = 3a.

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3x²+x² = x²(3 + 1) = x² × 4 = 4x².

_______________________________

:)

7 0
3 years ago
Look at pic 10 pts will mark brainilest
MissTica

Answer:

The answer is B or 8

Step-by-step explanation:

3 0
3 years ago
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nasty-shy [4]
I think you times all of the inchs together. 5x3x2=30.

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3 years ago
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