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3 years ago

12

Which of the following is not a real number?

2 answers:

givi [52]3 years ago

7 0

Answer:

im pretty sure its the -3 one

Step-by-step explanation:

FinnZ [79.3K]3 years ago

7 0

Answer:

The answer is A, Square root of -3 is not a real number.

Step-by-step explanation: You can take the square root of positive numbers, so we can eliminate choices C and D. We can take the square root of 0, which would equal 0, so B is incorrect. However, We cannot take the square root of negative numbers, so choice A is the answer for this question.

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Rewrite in simplest radical form: x^4/5 / x^1/3 into a√x^b

mrs_skeptik [129]

Answer:

$\sqrt[15]{x^7}$

Step-by-step explanation:

If we have the expression

$\frac{x^{\frac{4}{5}}}{x^{\frac{1}{3}}}$ , we have to think about exponent rules.

If we have $a^b \div a^c$ , then the value will be equal to $a^{b-c}$ .

So $\frac{x^{\frac{4}{5}}}{x^{\frac{1}{3}}}$ simplified will be $x^{\frac{4}{5} - \frac{1}{3}}$

Converting $\frac{4}{5}$ and $\frac{1}{3}$ into fifteenths (lcm) gets us $\frac{12}{15} - \frac{5}{15} = \frac{7}{15}$ .

We can convert $x^{\frac{7}{15}}$ into a radical by taking the denominator root of x to the numerator.

$\sqrt[15]{x^7}$ .

Hope this helped!

6 0

3 years ago

Find the unit rate. 12 laps in 30minutes. <br> Asking for fraction

11Alexandr11 [23.1K]

Answer:

4/10 maybe cuz 12 divided by 30 is 0.4 and 0.4 would be 4/10

7 0

3 years ago

Is -18x - 7 equal to -6(3x - 7)?

adoni [48]

Answer:

No

Step-by-step explanation:

-18-7 is not equal to -6(3x-8) beacuse

-6(3x-8)= -18x+42

its obivous that the two values are not same

5 0

3 years ago

Read 2 more answers

Solve the system of linear equations. separate the x- and y- values with a coma. -9x+2y=-7

Iteru [2.4K]

Y = 1, x = 1 hope this helps!

5 0

3 years ago

Danni is training for a marathon. Her target speed is 25 miles per hour. She currently runs 15 miles in 1/2 and hour. Does she a

Andrews [41]

Yes because if it’s fifteen in 1/2 an hour you multiply by two she is at 30 miles an hour which surpasses her goal by five

6 0

2 years ago