Answer:
D.
Step-by-step explanation:
If we rotate the 3-D figure around y-axis, we'll obtain a cylinder with a radius of 1 unit.
Answer:

Step-by-step explanation:
The formula to find the area of a circle is

Let pi be (3.14), the radios as given in the question is (0.9). Therefore;

Answer:
7.85 cm
Step-by-step explanation:
The circumference of a circle can be found using the following formula.

The diameter is 2.5 centimeters. Therefore, we can substitute 2.5 cm in for d.

Now, find the circumference.
- In terms of pi:



-Using 3.14 as pi



-Using 3.14159... as pi


Answer:
She needs $55 more dollars
Step-by-step explanation:
The fraction is 
Step-by-step explanation:
Let,
The denominator of fraction = x
Numerator of fraction = x-3
Fraction = 
According to given statement;
1 is added to the numerator, the value of the fraction becomes 3/4.

Using cross multiplication

Fraction = 
Keywords: fraction, division
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