Answer:
Step-by-step explanation:
its all blurry
Angles in a triangle add up to 180 therefore:
Angle CAB = 180 - 60 - 50 = 70
Angles on a straight line add up to 180 therefore the missing angle is:
180 -70 = 110
Answer is D
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Answer:
No
Step-by-step explanation:
Assuming that you put the wrong sign for the second equation if you plug (2,7) into the two equations it only works for one equation.
Answer:
Distance between the school and the theater = units
Step-by-step explanation:
Use distance formula to calculate the distance from the school (8, 7) and the theater (2, 3):
Let,
Plug in the values into the distance formula
Simplify
Answer:
18. 2,047.5 yd³
19. 3204 in.²
Step-by-step explanation:
18. Volume of triangular prism = triangular base area × height of prism
Height of prism = 21 yd
Triangular base area = ½*b*h
b = 15 yd
h = √(15² - 7.5²) = √168.75 ≈ 13 yd
Triangular base area = ½*15*13 = 97.5 yd²
Plug in the values into the formula of the volume of prism
Volume of prism = 97.5 × 21
= 2,047.5 yd³
19. Surface area = 2πrh + 2πr²
Where,
r = 15 in.
h = 19 in.
Plug in the values
Surface area = 2*π*15*19 + 2*π*15²
Surface area = 3204.42 ≈ 3204 in.² (nearest whole number)