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3 years ago

15

What is the area of triangle ABC?

1 answer:

almond37 [142]3 years ago

7 0

Answer:

I think it's A to your answer

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Thanks has a piece of rope that is 6 2/3 feet long how do you write 6 2/3 of a fraction greater than 1

icang [17]

Answer: 20/3

Step-by-step explanation: 3*6=18+2=20

8 0

3 years ago

The side lengths of the following right triangle 15,20 and 25, as shown below. The altitude from the right angle splits the hypo

kompoz [17]

Answer:

$h = 12$

$x = 9$

$y= 16$

Step-by-step explanation:

Given

The attached triangle

Required

Find h, x and y

Let the base of the triangle be 15.

So, the area is:

$A = \frac{1}{2} * 15 * 20$

$i.e\ height = 20$

$A = \frac{1}{2} * 300$

$A = 150$

Let the base of the triangle be 25.

So, the area is:

$A = \frac{1}{2} * 25 * h$

$i.e\ height = h$

$A = \frac{1}{2} * 25h$

Substitute $A = 150$

$\frac{1}{2}*25h = 150$

Solve for h

$h = \frac{150 *2}{25}$

$h = 6 *2$

$h = 12$

Considering the smallest triangle

$Hypotenuse = 15$

So:

$15^2 = h^2 + x^2$

$15^2 = 12^2 + x^2$

This gives:

$15^2 - 12^2 = x^2$

$81 = x^2$

Take square roots

$9 =x$

$x = 9$

Solving for y

$x + y = 25$

$y= 25 - x$

$y= 25 - 9$

$y= 16$

7 0

2 years ago

3x-5(x-5)= -4+2x+1<br><br> Can someone help me out plzzzz

dusya [7]

Answer:

7

Step-by-step explanation:

So basically first distribute the -5 to the stuff in the parenthesis and then solve.

Hope I helped!! :)

7 0

3 years ago

algol [13]

Answer:

19

Step-by-step explanation:

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21

3 0

3 years ago

Read 2 more answers

The radius of the base of a cylinder is 27 cm and it’s height is 33cm. Find the surface area of the cylinder in terms of pi.

Dahasolnce [82]

Answer:

10178.76

Step-by-step explanation:

use formula:-2πrh+2πr^2

6 0

3 years ago