For #16, it can be assume that the two angles are linear, so set them both equal to 90 (9x+x-10=90) and solve for x. Once you have x, plug it into the equations to find the measure of both angles. If both your final answers are added, they should equal 180. If not, go back and try to find where you messed up.

8 0

3 years ago

an astronomer wishes to measure on a photograph the distance between the image of a certain star and three star other star image

Greeley [361]

The astronomer has to choose 3 star images out of 8.This is a problem of combinations. This can be expressed as 8C3 i.e. combination of 8 objects taken 3 at a time.

$8C3= \frac{8!}{3!*5!}=56$

This means, if 8 images are nearby the astronomer will have 56 choices <span>of the three stars.</span>

6 0

4 years ago

What is the answer ?

Lera25 [3.4K]

The answer would be answer choice d. The above answer

8 0

3 years ago

What is the order of this matrix?

myrzilka [38]

Answer:

I do

Step-by-step explanation:

not know

7 0

3 years ago