Answer:
18/20π
Step-by-step explanation:
81π ÷ 1 = 81π
81π ÷2 = 18/20π
You do this because the radius is half of the diameter and you need to get rid of the hight by dividing it from the volume.
0 Pretend that is theta XD
cot 0 = 
Find tan 0.
tan 0 = 
tan 0 = 
tan 0 = 
cot 0 =
cot 0 = 
Multiply 2/√5 to the numerator and the denominator (or multiply the reciprocal of the denominator to the top and bottom of the fraction)
cot 0 = 
cot 0 = 
Multiply √5 to the numerator and the denominator
cot 0 = 
cot 0 = 
Answer:
11 pounds
Step-by-step explanation:
You would do 88 divided by 8 to get 11
Answer:
y=20
Step-by-step explanation:
2y+21 = 3y+1
Subtract 2y from both sides,
21 = 3y-2y +1
Subtract 1 from both sides,
y = 20
Answer:
If you expand that, it comes out to 200000000, or in scientific notation, 2.0 × 10⁸.
Step-by-step explanation:
Starting with:
(7 × 10⁵) × (3 × 10²)
Since everything is multiplied, we can drop the brackets:
= 7 × 10⁵ × 3 × 10²
Now we can multiply seven by three, and both powers of ten:
= 20 × 10⁷
We can expand this now as
200000000
or in proper scientific notation:
2.0 × 10⁸
