Find a common denominator.

5/6 and 3/4

10/12 and 9/12.

If she ran 10/12 of a mile away and turned around and ran 9/12's back, she is 1/12 of a mile away.

8 0

4 years ago

Plss help i’ll give brainliest thank you!

kiruha [24]

The answer is 12. 3 can go into 12 4 times

6 0

3 years ago

Read 2 more answers

Find the whole.

8_murik_8 [283]

It would be 39 I hoped I help

5 0

3 years ago

Find the exact value using a sum or difference identity of cos 105°

mixas84 [53]

Answer:

Step-by-step explanation:

We can easily determine the exact value of this unknown angle by breaking it into known angles that can add together to give up 105. For example, 105 degrees is 60 + 45, both of which are found on the unit circle. We ill also use the trig identity for the sum of the cos of 2 angles which is:

$cos(60+45)=cos60cos45-sin60sin45$

These values are found on the units circle, so make sure you have one handy. Those values fill in as follows:

$(\frac{1}{2})(\frac{\sqrt{2} }{2})-(\frac{\sqrt{3} }{2})(\frac{\sqrt{2} }{2})$ which simplifies to

$\frac{\sqrt{2}-\sqrt{6} }{4}$

3 0

3 years ago