Answer:
1. 2x² - 8x - 7
2. x³+ x + 30
Step-by-step explanation:
Answer:
The surface area of the cylinder is of 131.947 square meters.
Step-by-step explanation:
Surface area of a cylinder:
The surface area of a cylinder of height h and radius r is given by the following equation:

What is the surface area of the cylinder with a height of 3 m and radius of 4 m?
.
So

Height and radius are in meters, so the surface area will be in square meters.
The surface area of the cylinder is of 131.947 square meters.
Answer:
The answer is 4a
Step-by-step explanation:
1) Simplify 4a² + 12a² to 16a².

2) Use this rule:


3) Since 4 × 4 is 16, the square root of 16 is 4.

4) Simplify.

<u>Therefor</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>4a</u><u>.</u>
Every 2 inches is 5 miles right? we start off with 10 divided by 2, which gives us 2 inches, thats one step done! now we need to do .6 divided by two, .5 is 1 and .1 is .2. our answer should be 3.2 inches.