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3 years ago

WILL GIVE BRAINLIEST!

Mathematics

1 answer:

UNO [17]3 years ago

3 0

Answer:

Step-by-step explanation: 75% of 60 is 45. Subtract 45 from 60 which equals 15.

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Eight expressions are given below. Determine whether each expression is equivalent to 5^10 or not equivalent to 5^10.

KengaRu [80]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, as the 8 expressions are not given.

The general explanation is as follows

As complex as an expression may seem, you have to simplify each expression until it cannot be further simplified.

Then you categorize each result, depending on if it equals $5^{10}$ or not

Take for instance:

$5^5 * 5^5$

Using law of indices:

$5^5 * 5^5 = 5^{5+5$

$5^5 * 5^5 = 5^{10$ ---- equivalent

$\frac{5^5 + 5^5}{2 * 5^{-5}}$

Factorize the numerator

$\frac{5^5 + 5^5}{2 * 5^{-5}} = \frac{5^5(1 + 1)}{2 * 5^{-5}}$

$\frac{5^5 + 5^5}{2 * 5^{-5}} = \frac{5^5 * 2}{2 * 5^{-5}}$

Cancel out 2

$\frac{5^5 + 5^5}{2 * 5^{-5}} = \frac{5^5}{5^{-5}}$

Apply law of indices

$\frac{5^5 + 5^5}{2 * 5^{-5}} = 5^{5--5}$

$\frac{5^5 + 5^5}{2 * 5^{-5}} = 5^{5+5}$

$\frac{5^5 + 5^5}{2 * 5^{-5}} = 5^{10$ ---equivalent

$125 * 78125$

Express as exponent

$125 * 78125 = 5^3 * 5^7$

Apply law of indices

$125 * 78125 = 5^{3+7$

$125 * 78125 = 5^{10$ ---- equivalent

$5^3 + 5^7$

Solve exponents

$5^3 + 5^7 = 125 + 78125$

$5^3 + 5^7 = 78250$ ---- not equivalent

4 0

3 years ago

What's the interquartilr range of 78,88,82,57,98,68,78?

vekshin1

Lower quartile (xL): 68
Upper quartile (xU): 88

Interquartile range (xU-xL): 20

8 0

3 years ago

There are 45 questions on your math exam. You answered 8/10 of them correctly.how many questions did you answer correctly?

svet-max [94.6K]

Answer: A

Step-by-step explanation: Took the test

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1 year ago

In the expression 10 7th the 7 is called

dlinn [17]

The denominator.....i dont really understand the question

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3 years ago

If 4.5 pounds of cherries cost $10, what is the unit price per pound

djverab [1.8K]

Simply divide $10 by 4.5 to get the answer $2.22 per pound (actually the 2's keep repeating.
I guess the store might charge $2.23 since some will round any overage to the next penny.

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4 years ago