1.
Use the formula for the surface area of a sphere:
Plug in what we know:
Simplify the exponent:
Multiply:
This is an exact answer, if you want an approximate answer you can input 3.14 for pi:
2.
Use the formula for the volume of a sphere:
Plug in what we know:
Simplify the exponent:
Multiply:
This is an exact answer, if you want an approximate answer you can plug in 3.14 for pi:
3.
Since the two figures are similar, the ratio of their sides must be equal. So we can set up a proportion:
Cross multiply:
Divide 9 to both sides:
Answer:All these are equivalent, valid answers:
y < -12
all real numbers less than - 12:
( - ∞ , - 12)
{ y ∈ R | y < - 12}
Explanation:
1) Starting pointL inequality (1/2)y + 6 < 0
2) subtract 6 from both sides:
(1/2)y + 6 - 6 < 0 - 6
(1/2) y < - 6
3) multiply both sides by 2:
(2)(1/2)y < - (2) (6)
y < -12
4) That is all real numbers less than - 12:
Equivalent to ( - ∞ , - 12) or { y ∈ R | y < - 12}
Answer:
=2
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
Three
Step-by-step explanation:
It is not divisible by five