Step-by-step explanation:
Radius (r) = 8 feet
Answer:
67.61 degrees
Step-by-step explanation:
The question wants us to solve for x. Remember our trigonometric identities.
SOHCAHTOA: We have the Adjacent side and the Hypotenuse, so we must use CAH = cosine.
a/h = cosx
16/42 = cosx
.381 = cosx
Take inverse cosine of both sides.
cos⁻¹(.381) = x
x = 67.61 degrees
(4·10¹⁵)/(19·10¹²) ≈ (4/20)·10³ = 0.2·1000 = 200
The appropriate choice is ...
D) 200 times larger
It really can't. If the sides of the triangle are equal, one can't be bigger or smaller then the other one! :-)
Answer:
=21x2−13x+8
Step-by-step explanation:
=3x(7x−4)+−1(x−8)
=3x(7x−4)+−1x+(−1)(−8)
=3x(7x−4)+−x+8
Distribute:
=(3x)(7x)+(3x)(−4)+−x+8
=21x2+−12x+−x+8
Combine Like Terms:
=21x2+−12x+−x+8
=(21x2)+(−12x+−x)+(8)
=21x2+−13x+8