Precal please help me

a) 910

b) 1183

c) False

take these answers with a grain of salt, i cant guarantee accuracy but the process should be right?

Step-by-step explanation:

a)

Starting with 1300 dollars, we are given that the stock loses 30% of its value.

This means that we take 70% of 1300 as it is now at 70% of its value. This gives us 910.

b)

At 910 dollars, we are told that the stock's value rises by 30%, so if we multiply 910 by 1.3 or 130%, we get 1183. At this time, the stock is now worth 1183 dollars.

c)

It is false, as can be seen above a 30% loss followed by a 30% gain results in 91% of the original price. That's a 9% net loss.

This can be seen using variables, x -> 0.7x -> 0.7*1.3 x -> 0.91 x

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.