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kap26 [50]
3 years ago
10

Y ^-7 / y ^-13 20 POINTS PLEASE HELP

Mathematics
1 answer:
kkurt [141]3 years ago
4 0

Answer:

The answer is

<h2>{y}^{6}</h2>

Step-by-step explanation:

<h3>\frac{ {y}^{  - 7} }{ {y}^{ - 13} }</h3>

To solve the expression we use the rules of indices

Since the bases are the same and are dividing we subtract the exponents

That's

<h3>\frac{ {a}^{x} }{ {a}^{y} }  =  {a}^{x - y}</h3>

So we have

<h3>\frac{ {y}^{ - 7} }{ {y}^{ - 13} }  =  {y}^{ - 7 -  - 13}  =  {y}^{ - 7 + 13}</h3>

We have the final answer as

<h3>{y}^{6}</h3>

Hope this helps you

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Answer it pls option c
Troyanec [42]

Answer:

x = \frac{1}{4}

Step-by-step explanation:

\frac{x}{2} +\frac{3}{4} =\frac{7}{8}

→ Find the LCM of the denominators (2,4 and 8)

LCM = 8

→ Multiply the whole equation by 8 to get rid of the fractions

4x + 6 = 7

→ Minus 6 from both sides to isolate 4x

4x = 1

→ Divide both sides by 4 to isolate x

x = \frac{1}{4}

5 0
3 years ago
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Sari sold 300 boxes of greeting cards in November. In december she sold 500. What was the percentage increase in her sales
grigory [225]
There was a 66 \frac{2}{3}% increase from Sari's sales from November to December. 

To find the percentage increase in her sales, we must first find the amount her sales increased. We can do that by subtracting the greeting cards sold in November from the number of greeting cards sold in December. Substituting values and simplifying, we get that she sold 200 more greeting cards in December.

To find what percent increase this is, we must find what percent 200 is of the number of greeting cards sold in November. We can do this by dividing 200 by the number of cards sold in November (300), and then multiplying by 100 (to make it a percent). Doing this, we get \frac{2}{3} * 100 which gives us our answer of 66 \frac{2}{3}%.
3 0
3 years ago
there are 1,600 kilocalories in the 5cups of dog food that mike gives his adult dog. mike gives his puppy 2cups of the same dog
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There are 640 kilocalories in the 2 cups of dog food. :)
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3 years ago
A cube has a volume of 0.215ft³. What is te length of each side of the cube?
enyata [817]

Answer:

length ≈ 0.599 feet

Step-by-step explanation:

volume = length³

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cube root both sides to isolate the length

∛(0.215ft³) = length

length ≈ 0.599 feet

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35%Daisy is cooking pasta. The recipe says she needs 480 grams of pasta for 4 people. How many kilograms will she need for 14
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3 years ago
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