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2 years ago

This is 8th grade math on khan academy, correct answers only ty- 7 points have a gud day folks

Mathematics

2 answers:

nika2105 [10]2 years ago

4 0

Answer:

The correct answer is $9^2$

Step-by-step explanation:

9 is the base and 7-5=2. so n=2.

blsea [12.9K]2 years ago

3 0

<h3>Answer:</h3>

9² or 9^2

<h3>Step-by-step explanation:</h3>

Because the base is the same on the top and the bottom which is "9", you would either add or subtract the top and bottom exponent based on the arithmetic symbol used.

Because the arithmetic symbol division sign is used, you subtract the top exponent by the bottom giving you the answer nine to the power of two.

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3 years ago

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3 years ago

Which expression is equivalent to Negative 2 and one-fourth divided by negative two-thirds?

disa [49]

Negative 2 and one-fourth divided by negative two-thirds is equivalent to $\frac{-2+\frac{1}{4}}{-\frac{2}{3}}$ and simplified into $=\frac{21}{8}$

Step-by-step explanation:

We need to find the equivalent expression of Negative 2 and one-fourth divided by negative two-thirds

Basically we will translate it into mathematical form.

Converting step by step

Negative 2: -2

and: +

one-fourth: 1/4

combining them we get:

Negative 2 and one-fourth: $-2+\frac{1}{4}$

divided by negative two-thirds: $\frac{-2+\frac{1}{4} }{-\frac{2}{3} }$

So, Negative 2 and one-fourth divided by negative two-thirds is equivalent to: $\frac{-2+\frac{1}{4} }{-\frac{2}{3} }$

We can simplify the term $\frac{-2+\frac{1}{4} }{-\frac{2}{3} }$ to get simplified answer.

Simplifying:

$\frac{-2+\frac{1}{4}}{-\frac{2}{3}}$

Taking LCM of numerator

$=\frac{\frac{-2*4+1}{4}}{-\frac{2}{3}}$

$=\frac{\frac{-8+1}{4}}{-\frac{2}{3}}$

$=\frac{\frac{-7}{4}}{-\frac{2}{3}}$

Converting division into multiplication and reciprocating the denominator

$=\frac{-7}{4}\times -\frac{3}{2}$

$=\frac{-7*-3}{4*2}$

$=\frac{21}{8}$

So, Negative 2 and one-fourth divided by negative two-thirds is equivalent to $\frac{-2+\frac{1}{4}}{-\frac{2}{3}}$ and simplified into $=\frac{21}{8}$

Keywords: Solving Expressions

Learn more about Solving Expressions at:

#learnwithBrainly

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3 years ago

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Akimi4 [234]

Answer:

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3 years ago