Answer:
1436.75504 or 1372/3π cm^3
Step-by-step explanation:
The volume of a sphere can be found using:
V = 4/3 πr^3
We know the radius is 7, so we can substitute 7 in for r
V = 4/3 π7^3
Evaluate the exponent
V = 4/3 π 343
If we want the answer in terms of pi, multiply the two other numbers, that are not pi: 4/3 and 343.
v= (4/3*343)π
v=1372/3π
If we want an exact answer, multiply 1372/3 and pi
v=1436.75504
So, the volume is 1436.75504 or 1372/3 π cm^3
Answer:
Option d. 
Step-by-step explanation:
<u><em>The complete question is</em></u>
Given (1+cosx)/(sinx) + (sinx)/(1+cosx) =4, find a numerical value of one trigonometric function of x.
a. tanx=2
b. sinx=2
c. tanx=1/2
d. sinx=1/2
we have

Find the common denominator and adds the fractions

Expanded the numerator

Remember that
----> trigonometric identity
substitute


Factor 2 in the numerator

Simplify


Answer:
7
Step-by-step explanation:
Answer:
3x - 50 < 100
Step-by-step explanation:
Answer:
I think it's y = 3/2x - 5
Step-by-step explanation:
when we multiply the slopes of perpendicular lines, we get -1