Solve the problem.The three angles in a triangle always add up to 180°. If one angle in a triangle is 72° and the second is 3 times the third, what are the three angles?
A. 72°, 80°, 28°
B. 72°, 82°, 26°
C. 72°, 79°, 29°
D. 72°, 81°, 27°
Answer: D
You might also like to view...
Solve the compound inequality. Write your answer in interval notation or state that there is no solution.9x + 3 ? -42 and 6x + 4 ? -20
A. [-5, ?) B. [-5, -4] C. (-?, -5] ? [-4, ?) D. [-4, ?)
Provide an appropriate response.A stretch of road rises 80 ft for every 600 ft of road. Find the angle of inclination of the road. Round to tenths.
Fill in the blank(s) with the appropriate word(s).
Factor completely, or state that the polynomial is prime.x + 216x4
A. x(1 - 6x)(1 + 6x + 36x2) B. x(1 + 6x)(1 + 6x + 36x2) C. prime D. x(1 + 6x)(1 - 6x + 36x2)
Find the center, foci, and vertices of the ellipse.
+ 
= 1
A. center at (0, 0)
foci at (0, 8) and (4, 0)
vertices at (0, 64), (16, 0)
B. center at (0, 0)
foci at (- 4
, 0) and (4
, 0)
vertices at (-8, 0), (8, 0)
C. center at (0, 0)
foci at (0, - 4
) and (0, 4
)
vertices at (0, -8), (0, 8)
D. center at (0, 0)
foci at (0, -8) and (0, 8)
vertices at (0, -64), (0, 64)