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DedPeter [7]
3 years ago
8

27. Explain the Error Yuan is asked to evaluate the expression (-8)' on his exam, and writes that it is unsolvable because you c

annot evaluate a negative number to an even fractional power. Is he correct, and if so, why? If he is not correct, what is the correct answer?
Mathematics
1 answer:
DanielleElmas [232]3 years ago
3 0

Answer:

he is incorrect the answer is -4

Step by step explanation:

\sqrt[3]{-8^{2} }  \\\\\\\sqrt{-2^{2} } \\\\= -4

just because something is negative doesn't mean it cant still be divided

it will still be able to be divided but it will be a negative number

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Answer:

1/5

Step-by-step explanation:

Use Pythagoras theorem

5 0
2 years ago
The Cobb family’s natural gas bill was 85.50 for 95 cubic feet of gas, What is the unit rate? (Cost per cubic foot of gas?)
Ratling [72]

Answer:

I believe it would cost 9 cents per cubic foot of gas.

Step-by-step explanation:

7 0
3 years ago
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garri49 [273]
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5 0
3 years ago
On a certain hot summers day , 293 people used the public swimming pool. Daily prices are $1.50 for children and $2.50 for adult
fredd [130]

C = children

A = adults

293 = c + a

1.50c + 2.50a = 676.50

We can use substitution to solve:

c + a = 293 subtract a to get c = 293 - a

Plug this into the second equation:

1.50(293 - a) + 2.50a = 676.50

439.5 - 1.50a + 2.50a = 676.50

439.5 + 1a = 676.50

a = 237

Substitute this into the first equation:

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8 0
3 years ago
Of all postsecondary degrees awarded in the United States, including master's and doctorate degrees, 21% are associate's degrees
icang [17]

The conditional probability that a degree is earned by a person whose race is White, given that it is an associate's degree, is 57.14%.

Given that of all postsecondary degrees awarded in the United States, including master's and doctorate degrees, 21% are associate's degrees, 58% are earned by people whose race is White, and 12% are associate's degrees earned by Whites, to determine what is the conditional probability that a degree is earned by a person whose race is White, given that it is an associate's degree, the following calculation should be performed:

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  • 1200/21 = X
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Therefore, the conditional probability that a degree is earned by a person whose race is White, given that it is an associate's degree, is 57.14%.

Learn more in brainly.com/question/795909

5 0
2 years ago
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