A) x + y = -80
B) 3x = y
x + 3x = -80
4x = -80
x = -20
y = -60
the answer is D
y=-4(2)^2=-16
hope this helps you good luck
Answer:
A)2
Step-by-step explanation:
we would like to integrate the following definite Integral:

use constant integration rule which yields:

notice that we can rewrite √x using Law of exponent therefore we obtain:

once again use law of exponent which yields:

use exponent integration rule which yields;

simplify which yields:

recall fundamental theorem:

simplify:

hence
our answer is A
I believe since ABD is 60, DBC is also 60 and then ABC is 120
Answer:
x = ±4i or x = ±√-16
Step-by-step explanation:
x² - 5x + 19 = 5x + 3
x² + 16 = 0
x² = -16
x = ±√-16 (a negative square root is an imaginary number)