Your friend evaluates the expression when m = 10. Is your friend correct?

Mathematics

1 answer:

Fed [463]1 year ago

4 0

Answer:

No, "your friend" is incorrect in that he/she subtracted 6 from 10 instead of multiplying 3 by 10. The bolded portion is incorrect 3m - 6 = 3 x 10 - 6 = 3 x 4 = 12. It should've read: 3m - 6 = 3 x 10 - 6 = 30 - 6 = 24

You might be interested in

Help is in 1 minute<br> !!!!!!!!!!!!!!!!!!!!!!!!!!

grin007 [14]

The answer to this question is A

6 0

1 year ago

After a 75% reduction, you purchase a new clothes dryer on sale for $125. What was the original price of the clothes dryer?

Free_Kalibri [48]

The clothes dryer would've been $500 originally :)

7 0

2 years ago

SOMEONE PLEASE HELP!

Andrews [41]

Answer:

17.2°

Explanations

To find angle A, use the cosine rule.

a^2 = b^2 + c^2 - 2 × a × c cos A

4^2 = 7^2 + 10^2 - 2 × 7 × 10 cos A

16 = 49+ 100 - 140 × cosA

16 = 149 - 140cosA

16- 149 = - 140cosA

-133 = - 140cosA

cosA = 133/140

cosA = 0.95

A = 17.2°

7 0

1 year ago

In 2010, the average duration of long-distance telephone calls originating in one town was 9.4 minutes. A long-distance telephon

Zepler [3.9K]

<u>Answer</u>: No, we do not have sufficient evidence to conclude that the mean call duration, µ, is different from the 2010 mean of 9.4 minutes.

Step-by-step explanation:

As per given , we have

$H_0: \mu=9.4\\\\H_a:\mu\neq9.4$ , since $H_0$ is two-tailed so , the test is a two tail test.