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jek_recluse [69]
3 years ago
14

Find the areas of the trapezoids.

Mathematics
2 answers:
LenKa [72]3 years ago
6 0

Answer:

10.5 units²

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = \frac{1}{2} h (a + b)

where h is the height and a, b the parallel bases

Here h = OS = 3, a = OC = 5 and b = SK = 2, thus

A = 0.5 × 3 × (5 + 2) = 1.5 × 7 = 10.5 units²

geniusboy [140]3 years ago
4 0

Answer:

Step-by-step explanation:

a = 2 units

b = 5 units

height (h) = 3 units

Area=\frac{(a+b)*h}{2}\\\\=\frac{(2+5)*3}{2}\\\\=\frac{7*3}{2}=\frac{21}{2}\\\\=10.5square units

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Step-by-step explanation:

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3 years ago
What is m CDJ? <br>please help me I'm super confused.​
Citrus2011 [14]

Answer:

34 degrees.

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
4. Divide z(5z2 - 80) by 5z (z+4)​
insens350 [35]

Answer:

z-4

Step-by-step explanation:

z(5z²-80) ÷ 5z(z+4) = z-4

Step-by-step explanation:

Given: z(5z²-80) ÷ 5z(z+4)

Calculation:

First we factor numerator z(5z²-80)

Take out 5 from 5z²-80 and we get 5z(z²-16)

Now we factor 16 = 4²

5z(z²-4²)

Using formula, (a²- b²)=(a+b)(a-b)

5z(z²- 4²)⇒5z(z+4)(z-4)

Simplified fraction

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Cancel like factor from numerator and denominator

⇒ z-4

Thus, z(5z²-80) ÷ 5z(z+4) = z-4

5 0
3 years ago
Find the volume of a sphere made by rotating a circle with a radius of 12 inches. Use 3.14 for π and round to nearest whole numb
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3 years ago
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