All categories

3 years ago

Find the total surface area of this cylinder . Give your answer to 1 decimal place 7cm 15 cm

Mathematics

1 answer:

Leto [7]3 years ago

3 0

Answer:

Step-by-step explanation:

r = 7 cm

h = 15cm

pi = 3.14

Top and bottom (These questions drive you crazy when you don't know if there is both a top and bottom).

Area = 2* pi *r^2 = 2 * 3.14 * 7^2

Area = 2 * 3.14 * 49

Area = 307.72 Don't round this.

Cylinder body

Cylinder body = Circumference * h = 2*pi * r * h

Cylinder body = 2* 3.14 * 7 * 15

Cylinder body = <u> 659.4</u>

<u />

Total = 967.12

Rounded 967.1 Answer

You might be interested in

Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at o

Klio2033 [76]

Answer:

Step-by-step explanation:

Dont know

4 0

3 years ago

Read 2 more answers

Given:

Dennis_Churaev [7]

You cut off the edge. No matter; we have two pairs of congruent angles, and included side AC is congruent to itself, so we have everything we need to invoke

Answer: ASA, the Angle-Side-Angle triangle congruent theorem

3 0

3 years ago

Read 2 more answers

Solve your equation using trail and improvement. A number plus ten times its square root is is equal to one thousand

Alex

Answer:

$x \approx 729$

Step-by-step explanation:

Given

Let the number be x

So:

$x + 10\sqrt x = 1000$

Required

Using trial and improvement, find x

This implies that we keep guessing the values of x until we get a value that match the equation.

Let

$x = 625$

So, we have:

$x + 10\sqrt x = 1000$

$625 + 10 *\sqrt{625}$

Take the square root of 625

$625 + 10 *\sqrt{625} = 625 + 10 *25$

$625 + 10 *\sqrt{625} = 625 + 250$

$625 + 10 *\sqrt{625} = 875$

Let

$x = 729$

So, we have:

$x + 10\sqrt x = 1000$

$729 + 10 * \sqrt{729}$

Take the square root of 729

$729 + 10 * \sqrt{729} = 729 + 10 * 27$

$729 + 10 * \sqrt{729} = 729 + 270$

$729 + 10 * \sqrt{729} = 999$

At this point, we can conclude that x is approximately 729 because

$999 \approx 1000$

So:

$x \approx 729$

5 0

3 years ago

You a member of a friendship club. There are 8 members in your club. On the 8th day of each month, you have a friendship call. E

Fofino [41]

1. 8x8=64
2.64x12=768
3.8+4= 12. 12×12=144
4.they can times the amount people by every phone call to get their answer

8 0

3 years ago

(6.2)(0.48) What does this mean and equal?

Tom [10]

It means you multiply 6.2 x 0.48
which equals = 2.976
( ) mean multiply

4 0

3 years ago