Answer:
Step-by-step explanation:
<u>Set inequality as per question:</u>
<u>We know that:</u>
- V = πr²h
- h = 10 cm
- π = 3.14
<u>Substitute and solve for r:</u>
- 2000 ≤ 3.14*10r² ≤ 2500
- 2000 / 31.4 ≤ r² ≤ 2500 / 31.4
- 63.69 ≤ r² ≤ 79.62
- 64 ≤ r² < 81
- r² = 64 ⇒ r = 8 cm is the possible radius
Answer:
110°
Step-by-step explanation:
180°-60°-50°=70°
×=180°-70°=110°
Cot (- 210º) = - √3 so <span>30° </span>
Answer:
10 times
Step-by-step explanation:
7 times 10 equals 70
2.3+8(1.3x-4.75)=629.9
2.3+10.4x-38=629.9
-35.7+10.4x=629.9
10.4x=665.6
x=64
The last step was --> D. Divide both sides of the equation by 10.4