Answer:
Pretty sure it's 90 degrees
Step-by-step explanation:
THE CORRECT ANSWER TO THAT IS D
841 rounded to the nearest 10th is 840...hope this helps u :)
Something to the second power is simply that number multiplied by itself once. The third power is something multiplied by itself 2 times, and so on
Answer:
x=+/-3
Step-by-step explanation:
x^4-5x^2-36=0
factor
(x^2-9)(x^2+4)=0
split into 2 equations because one of these terms will need to equal zero for the eqation to be true
x^2-9=0 x^2+4=0
x^2=9 x^2=-4
x=+/-3 no real numbers
