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3 years ago

A rectangle is 13 centimeters wide and 18 centimeters long. how long is its diagonal

1 answer:

7 0

You have to use the Pythagorean theorem a squared plus b squared is c squared so 13 squared plus 18 squared equals c squared. 13x13=169 18x18=324 169+324=493 so c squared is 493 to get c you square root 493 which equals 22.2 so the diagonal, c, is 22.2 centimeters long

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WHAT WOULD THIS BEEE!!

Yuliya22 [10]

use Pythagoras theorem

20 units

8 0

2 years ago

Read 2 more answers

40 is 80% of what number?

agasfer [191]

Answer:

Step-by-step explanation:

.80n = 40

n = 40 divided by .80

40/8/10 = 400 / 80 = 50

Best Of Luck,

- I.A. -

6 0

3 years ago

A cylinder has volume 63 cm3. What is the volume of a cone with the same radius and height?

aev [14]

it's answer is

volume of a cone = 21

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3 years ago

If the points (-8, 7) and T (6,-3) are on a line segment, find the length of ST.

larisa86 [58]

Answer:

The answer is

<h2>2√74 or 17.20 units</h2>

Step-by-step explanation:

The length of w line segment between two points can be found by using the formula

$d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\$

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

S(-8, 7) and T (6,-3)

The length of ST is

$|ST| = \sqrt{ ({ - 8 - 6})^{2} + ({7 + 3})^{2} } \\ = \sqrt{ ({ - 14})^{2} + {10}^{2} } \\ = \sqrt{196 + 10} \\ = \sqrt{296} \\ = 2 \sqrt{74} \\ = 17.2046505...$

We have the final answer as

<h3>2√74 or 17.20 units</h3>

Hope this helps you

8 0

3 years ago

There are 8 person including a married couple Mr and Mrs Sharma from whom a committee of 4 has to be chosen.In how way can the c

djverab [1.8K]

Answer:

Step-by-step explanation:

1.) 6C4= 15

2.) (1C1)*(6C3)= 20

3.) (2C2)*(6C2)= 15

3 0

3 years ago