In right triangle ABC, with right angle at C, AC=5 and BC=12. Find the value of (sin A)^2+ (sin B)^2
Look at the picture.
We need the hypotenuse. Use the Pythagorean theorem:
For angle A we have
For angle B we ahve
Substitute to given expression:
You can also see a relationship:
It's a Pythagorean identity:
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
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.