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3 years ago

You cannot evaluate the square root of a __________________________. a. Positive number b. Negative number c. Zero d. Variable

2 answers:

8 0

B negative number, it’s not possible to get the root of a negative number because a negative times a negative is a positive

AnnZ [28]3 years ago

4 0

Answer:

B, a negative number. negative numbers can't have square roots

Step-by-step explanation:

Hope this helps :)

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Consider that the length of rectangle A is 21 cm and its width is 7 cm. Which rectangle is similar to rectangle A?

Greeley [361]

Question is incomplete, complete question is given below.

Consider that the length of rectangle A is 21 cm and its width is 7 cm. Which rectangle is similar to rectangle A? A) A rectangle with a length of 9 cm and a width of 3 cm. B) A rectangle with a length of 20 cm and a width of 10 cm. C) A rectangle with a length of 18 cm and a width of 9 cm. D) A rectangle with a length of 27 cm and a width of 3 cm.

Answer:

A) A rectangle with a length of 9 cm and a width of 3 cm.

Step-by-step explanation:

Given,

Length = 21 cm Width = 7 cm

$Ratio = \frac{Length}{Width}\\\\Ratio = \frac{21}{7}=3:1$

For the similarity of rectangle the ratio of length to width of any two rectangles should be equal.

So we have four options given;

A) A rectangle with a length of 9 cm and a width of 3 cm.

$Ratio =\frac{9}{3}=3:1$

Here the ratio is equal as of rectangle A. So this rectangle is similar to rectangle A.

B) A rectangle with a length of 20 cm and a width of 10 cm.

$Ratio =\frac{20}{10}=2:1$

Here the ratio is not equal as of rectangle A. So this rectangle is not similar to rectangle A.

C) A rectangle with a length of 18 cm and a width of 9 cm.

$Ratio =\frac{18}{9}=2:1$

Here the ratio is not equal as of rectangle A. So this rectangle is not similar to rectangle A.

D) A rectangle with a length of 27 cm and a width of 3 cm.

$Ratio =\frac{27}{3}=9:1$

Here the ratio is not equal as of rectangle A. So this rectangle is not similar to rectangle A.

Thus the correct option is A) A rectangle with a length of 9 cm and a width of 3 cm.

4 0

4 years ago

Arrange the digits 1,2,3,4,5,6,7 so that when the numbers are added up, they will total 100.

GuDViN [60]

36 + 57 + 4 + 2 + 1 = 100 would do it.

6 0

4 years ago

The population of a small town was 3000 at the beginning of 2007. Assuming an average growth rate of 1.8% per year, what will be

grin007 [14]

F = P(1 + r)^t

F = future population
P = present population = 3000
r = growth rate per year as a decimal = 0.018
t = time in years = 8 (from 2007 to 2015, it's 8 years)

F = 3000(1 + 0.018)^8

F = 3460

The population will be 3460.

8 0

3 years ago

Read 2 more answers

What is what is 4x-2>12?

WITCHER [35]

4x - 2 > 12
4x > 10
X > 5/2

6 0

4 years ago

Read 2 more answers

PLEASE HELP ASAP!!!!

Yakvenalex [24]

Answer: