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erica [24]
3 years ago
13

Please help me quickly!

Mathematics
2 answers:
DedPeter [7]3 years ago
4 0

Answer:

√50

Step-by-step explanation:

tan X = opp/adj

tan X = 5/5

tan X = 1

X = tan-¹ 1

X = 45

but cos X = hyp/adj

X = 45

Cos 45 = C/5

1/√2 = C/5

5 = C√2

C = 5/√2

rationalize 5/√2 × √2/√2

5√2/2

so therefore, the answer is √50 bcos

√25×2

5√2

<h2>the answer is √50</h2>
Degger [83]3 years ago
3 0

Answer:

√50

Step-by-step explanation:

Use Pythagorean Theorem: a^2+b^2=c^2

5^2+5^2=c^2

25+25=c^2

50=c^2

c=√50

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5 0
3 years ago
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Arisa [49]

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3 0
3 years ago
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5 0
3 years ago
if 1 gallon of paint covers 400 square feet, about how many gallons of paint are needed to paint the outside of a spherical tank
ollegr [7]
Given:
Diameter if the spherical tank = 20 ft.
Now,
We know,
radius = diameter / 2
          = 20 / 2
          = 10 ft.
Now, 
The area of the spherical tank = 4 \pi  r^{2}
        
                                            = 4 \pi  (10)^{2}

                                            = 4 * \pi *100

                                            = 1256.637061
 
                                            = 1256.64~ft^2-->rounded  

Now,
According to the question,
400 ft² needs 1 gallon of paint
1 ft² needs (1 / 400) gallon of paint
1256.64 ft² needs (1 / 400) * 1256.64 gallon of paint
                        = 3.1416 gallon of paint
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So, we need 3.14 gallon of paint


6 0
4 years ago
The volume of this cylinder
Andrew [12]

Answer:

First, plug the values of the volume, pi, and radius into the formula for volume of a cylinder. Next, square the radius and multiply the values together. Last, divide each side by 113.04 for the answer, remembering to include the appropriate unit of measurement. The answer is the height of the cylinder is 8 inches.

Step-by-step explanation:

8 inches

6 0
3 years ago
Read 2 more answers
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