3 years ago

How do you solve this?

Mathematics

1 answer:

Lerok [7]3 years ago

3 0

Please re trying the photo and check

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Help help pls answer asap

Effectus [21]

Answer:

Step-by-step explanation:

V-0.12V (first option) if we factor it it becomes

V(1-0.12)=0.88V (last option)

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2 years ago

Jefferey Says he has 6.8 dollars. How to you write the decimal 6.8 when it refers to money? Explain.

Bogdan [553]

6 Dollars and 80 cents

8 0

3 years ago

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Which question can be answered by solving the inequality 8d > 200 answers above

lubasha [3.4K]

It is the bottom right one because the amount he walked has to be greater than 200

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3 years ago

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Which rational exponent represents a square root? A. 1 / 2 B. 3/2 C. 1/3 D. 1/4

Fofino [41]

Answer:

1/2 rational exponent represents a square root.

Therefore, option A is correct.

Step-by-step explanation:

As we know that raising to the one-half power i.e. $\frac{1}{2}$ is the same

as taking the square root.

so $x^{\frac{1}{2}}$ is the same as the square root of $x$ .

For example, taking the square root of 4 will determine:

$4^{\frac{1}{2}}$

$\mathrm{Factor\:the\:number:\:}\:4=2^2$

$4^{\frac{1}{2}}=\left(2^2\right)^{\frac{1}{2}}$

$\mathrm{Apply\:exponent\:rule}:\quad \left(a^b\right)^c=a^{bc},\:\quad \:a\ge 0$

$\left(2^2\right)^{\frac{1}{2}}=2^{2\cdot \frac{1}{2}}$

so the expression becomes

$4^{\frac{1}{2}}=2^{2\cdot \:\frac{1}{2}}$

$=2^1$

$=2$ ∵ $\mathrm{Apply\:exponent\:rule}:\quad \:a^1=a$

so, 1/2 rational exponent represents a square root.

Therefore, option A is correct.

5 0

2 years ago

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A high school administrator determined that 22% of the students worked part-time after school with an ±8% margin of error. If th

Volgvan

Answer:

A) 199 to 426 students

Step-by-step explanation:

We add and subtract the margin of error on the original percentage

This leaves us with 30% and 14%

30% of 1420 is 426

14% of 1420 199 (rounded to whole number)

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3 years ago

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