Answer:
base angles: 30°, apex angle: 120°
Step-by-step explanation:
The sine of each base angle is 4/8 = 1/2. The angle whose sine is 1/2 is 30°, so each base angle is 30°.
The remaining angle is 180°-2·30° = 120°.
Answer:
30 times greater.
Step-by-step explanation:
We divide:
9 * 10^5 / 3 * 10^4
= 9/3 * 10^(5-4)
= 3 * 10^1
= 30.
Answer:
About 188.71 feet
Step-by-step explanation:
The cosine of an angle is equivalent to the adjacent side divided by the length of the hypotenuse. Therefore:
Hope this helps!
Answer:
20%
Step-by-step explanation:
2.5 min =(60×2.5)sec=150 sec
30sec to 150sec=30×100/150=20%
Answer:
The depth of the water is 42 ft
Step-by-step explanation:
The volume of the rectangular tank = base area × height
The water will take the shape of the tank
So the volume of the water = the area of the base of the tank × the height of the water
94,500 = 25 × 90 × h water
h water = 94500 ÷ (25 × 90) = 42 ft