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3 years ago

9

The length of a shadow of a building is 28 m. The distance from the top of the building to the tip of the shadow is 32 m. Find t

he height of the building.

1 answer:

True [87]3 years ago

6 0

Check the picture below.

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Do you want to $140 to your friend he pays you back $270 what interest rate did you charge your friend

ExtremeBDS [4]

Answer:

the interest rate is 92.86%

Step-by-step explanation:

270-140= 130

the %interest= (130/140)×100%

92.86%

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3 years ago

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NEED HELP ASAP!!!! <br> A) 12 sq. cm.<br> B) 6 sq. cm.<br> C) 12 cm<br> D) 6 cm

zaharov [31]

Answer:

its B- 6 sq. cm.

Step-by-step explanation:

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2 years ago

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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

$x + y = 25$

$y= 25 - x$

$y= 25 - 9$

$y= 16$

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2 years ago

Ana tiene 14 años menos que Beto y ambas edades suman 56 años

allsm [11]

42 because 56 mines 14 equals 42

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2 years ago