Answer/Step-by-step explanation:
Volume of a sphere = ⁴/3πr³
1. r = ½ of 14.4 = 7.2 in.
Volume = ⁴/3 × π × 7.2³ = 1563.46 ≈ 1563.5 in.³
2. r = 6 yd
Volume = ⁴/3 × π × 6³ = 904.78 ≈ 904.8 yd³
3. r = 8 mm
Volume = ⁴/3 × π × 8³ = 2144.66 ≈ 2144.7 mm³
4. r = ½ of 13.5 = 6.75 cm
Volume = ⁴/3 × π × 6.75³ = 1288.25 ≈ 1288.3 cm³
5. r = 4.7 in.
Volume = ⁴/3 × π × 4.7³ = 434.89 ≈ 434.9 in.³ (nearest tenth)
Answer:
0.73
Step-by-step explanation:I use khan too 0.7 is 10 times as great as 0.07
Answer:
A,C, AND D
Step-by-step explanation:
A. 3+4>5 therefore a triangle
B. 1+7<10 therefore not a triangle
C. 1.5+1.5>2.5 therefore a triangle
D. 7+7>7 therefore a triangle
E. 6+6=12 therefore not a triangle
Answer:
21 feet
Step-by-step explanation:
pythagoreom theorem
a^2+b^2=c^2
6.5^2+20^2=c^2
42.25+400=c^2
442.25=c^2
21 feet
Answer:
3
Step-by-step explanation:
Multiply both sides by x to get rid or the denominator: 
Get rid of the square root by squaring both sides:
= 4x + 15 = 9x
Just solve for x.
<em>Hope this helps!!</em>
