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Inessa [10]
2 years ago
15

19. The bases of a trapezoid are 8 and 22 and the trapezoid's area is 135. Find the height

Mathematics
2 answers:
julia-pushkina [17]2 years ago
8 0

Answer: 9

Step-by-step explanation:

A=(a+b)/2 *h

135= 30/2* h

135= 15 * h

135/15= h

9=h

AnnZ [28]2 years ago
6 0

Answer:

Height = 9

Step-by-step explanation:

Area of a trapezoid = ½(a+b)h

135 = ½(8+22)h

135 = ½(30)h

135 = 15h

h = 135/15

h = 9

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kirza4 [7]

The height of the pole is 96 feet

In mathematics, the Pythagorean theorem, or Pythagoras' theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides. This theorem can be written as an equation relating the lengths of the legs a, b and the hypotenuse c, often called the Pythagorean equation:[1]

a^{2}+b^{2}=c^{2},

Create a diagram of the scenario first. You would have a right triangle with a hypotenuse (longest side) of h + 4, a longest leg of h - 68, and one leg of length h to represent the pole.

Set up the equation h^2 + (h - 68)^2 = (h + 4)^2 using the Pythagorean theorem (a^2 + b^2 = c^2).

h^2 + (h - 68)^2 = (h + 4)^2

On simplifying we get

h^2+h^2-136h+4624 = h^2+8h+16

2h^2-136h+4624=h^2+8h+16

h^2-144h+4608=0

Solving using quadratic formula

h_{1,\:2}=\frac{-\left(-144\right)\pm \sqrt{\left(-144\right)^2-4\cdot \:1\cdot \:4608}}{2\cdot \:1}  

h_1=\frac{-\left(-144\right)+48}{2\cdot \:1},\:h_2=\frac{-\left(-144\right)-48}{2\cdot \:1}

h1 = 96 feet , h2 = 48 feet

If height would have been 48 feet then the other side would have a negative value as as 48 - 68 = -20 .

Hence the height of the pole is 96 feet

Learn more about Pythagoras theorem here :

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1 year ago
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Fggghfodididididtxitdidotdotd
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2 years ago
This one a little weird
Ludmilka [50]

Answer:

It might be 10 but tell me if I'm right or wrong

Step-by-step explanation:

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3 years ago
Which point do the graphs of f and g have in common?
pickupchik [31]

The point that the graphs of f and g have in common are (1,0)

<h3>How to get the points?</h3>

The given functions are:

f(x) = log₂x

and

g(x) = log₁₀x

We know that logarithm of 1 is always zero.

This means that irrespective of the base, the y-values of both functions will be equal to 0 at x=1

Therefore the point the graphs of f and g have in common is (1,0).

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6 0
1 year ago
A Web site sells products for a small business. The Web site collects 30 percent of the revenue from the products that the busin
Sergeeva-Olga [200]

Hey!

Hope this helps...

~~~~~~~~~~~~~~~~~~~~~~~

150 * (95 * 0.30) = x

150 * 28.50 = x

x = $4,275 is the max the website can earn per 150 sold...

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3 years ago
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