In right triangle ABC, with right angle at C, AC=5 and BC=12. Find the value of (sin A)^2+ (sin B)^2

Step-by-step explanation:

Look at the picture.

We need the hypotenuse. Use the Pythagorean theorem:

Substitute

For angle A we have

Substitute:

For angle B we ahve

Substitute:

Substitute to given expression:

You can also see a relationship:

Therefore

It's a Pythagorean identity:

Therefore

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.