The attached table is one that it is convenient for you to memorize as long as you're taking courses involving angles. For the inverse functions, find the column corresponding to the function, then look for the value in that column. The angle at the beginning of that row is the answer to your question.
8.
![\cos^{-1}(0)= 90^{\circ}=\dfrac{\pi}{2}](https://tex.z-dn.net/?f=%5Ccos%5E%7B-1%7D%280%29%3D%2090%5E%7B%5Ccirc%7D%3D%5Cdfrac%7B%5Cpi%7D%7B2%7D)
9.
![\sin^{-1}(1)= 90^{\circ}=\dfrac{\pi}{2}](https://tex.z-dn.net/?f=%5Csin%5E%7B-1%7D%281%29%3D%2090%5E%7B%5Ccirc%7D%3D%5Cdfrac%7B%5Cpi%7D%7B2%7D)
10.
11x+3y=103 and y=3x+1.
11x+3(3x+1)=103 -----> plug in (3x+1) for y in the first equation. You will want to distribute the 3 to the 3x+1 to get something that looks like:
11x+9x+3=103 ------> now you want to combine like terms
20x+3=103 ---> subtract 3 from both sides
20x=100 ----> divide both sides by 20
x=5
y=3(5)+1 ---> I like to plug in this to the equation that already has y isolated. 3*5 is 15, add 1 and you find that y=16.
(5, 16) will be your final answer (:
Answer:
f(x) = (x^2 -4) ( x-5)
Here quadratic factor is ( x^2 -4) As x contains power 2
and linear factor is (x-5) as x contains power 1
Answer:
7x+3
Step-by-step explanation:
The only like terms are 5x and 2x
5+2=7
248 to 370 gems
set up two equations
132=(1/2)x+8 x=248
193=(1/2)x+8 x=370