Answer: cos(x)= 10/15
Step-by-step explanation:
Trust
Answer:
whatever 31-18 is i think
Step-by-step explanation:
Uhh... what are the options?
Here's some possible ones:
0.2
1/5
Divide 607,200 by 5280 which equals 115


Cancel out the denominators.
(x+5)² + 18 = -30
(x+5)² = -30 - 18
(x+5)² = -48
The equation is impossible, we have a negative number.
There isn't a number that squared gives a negative number (the square is always positive).
√(x+5)² = +/- √-48
x+5 = +/- √-48
IMPOSSIBLE
You can write the result in imaginary numbers
x+5=+/- 4i√3