3 years ago

What is m in equation 2m=12

Mathematics

1 answer:

Likurg_2 [28]3 years ago

7 0

M is equal to 6 because 6 times 2 would equal 12

You might be interested in

HELP ON THIS PROBLEM!! Solve the following 0deg< x< 360deg: cos x= cos 2x

blsea [12.9K]

Answer:

$x=0^\circ,120^\circ,240^\circ,360^\circ$

Step-by-step explanation:

Use identities to set the equation up as a quadratic

$\cos x=\cos 2x;\:0^\circ \leq x \leq 360^\circ\\\\\cos x=2\cos^2 x-1\\\\0=2\cos^2 x-\cos x-1$

Make the substitution u=cos(x) and solve the quadratic

$0=2u^2-u-1\\\\0=(2u+1)(u-1)$

$\displaystyle 0=2u+1\\\\0=2\cos x+1\\\\-1=2\cos x\\\\-\frac{1}{2}=\cos x\\\\120^\circ,240^\circ=x$

$0=u-1\\\\0=\cos x-1\\\\1=\cos x\\\\0^\circ,360^\circ=x$

Hence, $x=0^\circ,120^\circ,240^\circ,360^\circ$

7 0

2 years ago

Myra is evaluating the expression –31.7 + 4.5x, when x = 2.1.

mylen [45]

Answer:

-22.25

Step-by-step explanation:

-31.7+4.5(2.1)

-31.7+9.45

-22.25

8 0

3 years ago

Read 2 more answers

Donna needs to memorize words on a vocabulary list for Korean class. She has memorized 36 of the words, which is three-fourths o

Taya2010 [7]

Hi There!

Donna needs to memorize words on a vocabulary list for Korean class. She has memorized 36 of the words, which is three-fourths of the list. How many words are on the list

36 / 3 = 12

12 * 4 = 48

There are 48 words on the list.

Hope This helps :)

7 0

3 years ago

Read 2 more answers

Find the value of x.

zaharov [31]

$x = 25 \sin 30 = 25 (1/2) = \dfrac{25}{2}$

6 0

3 years ago

Read 2 more answers

What quantative measures describe a variation in a set

AlekseyPX

Answer:

This would be the range, the interquartile range, the variance, and finally the standard deviation.

Step-by-step explanation:

Hope this helps you, please mark as brainlest.

7 0

2 years ago