4 times 1 equals 4 then do 81 minus 4 which equals 77 so 77 is your answer
Answer:
Answer=50
Step-by-step explanation:
hope the picture is good enough for an explanation
Answer:
Step-by-step explanation:
This question is asking us to find where sin(2x + 30) has a sin of 1. If you look at the unit circle, 90 degrees has a sin of 1. Mathematically, it will be solved like this (begin by taking the inverse sin of both sides):
![sin^{-1}[sin(2x+30)]=sin^{-1}(1)](https://tex.z-dn.net/?f=sin%5E%7B-1%7D%5Bsin%282x%2B30%29%5D%3Dsin%5E%7B-1%7D%281%29)
On the left, the inverse sin "undoes" or cancels the sin, leaving us with
2x + 30 = sin⁻¹(1)
The right side is asking us what angle has a sin of 1, which is 90. Sub that into the right side:
2x + 30 = 90 and
2x = 60 so
x = 30
You're welcome!
Answer:
This system has one solution only
Step-by-step explanation:
We have to evaluate the equations shown in the picture you gave
Since the equations differs, they are not the same, this system has only on solution for x and for y.
In fact, if we sum them, we obtain y=0, and then x=2