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Sidana [21]
3 years ago
6

a storage drum in the shape of a cylinder is 3 feet tall and has a diameter of 4 feet. what is the total surface area of the sto

rage drum? use 3.14 for pi and round the answer to the nearest tenth
Mathematics
2 answers:
nlexa [21]3 years ago
7 0

Answer:

SA=62.8\ ft^2

Step-by-step explanation:

we know that

The surface area of a cylinder is equal to

SA=2\pi r^{2}+2\pi rh

we have

h=3\ ft

r=4/2=2\ ft ----> the radius is half the diameter

assume

\pi =3.14

substitute

SA=2(3.14)(2)^{2}+2(3.14)(2)(3)

SA=62.8\ ft^2

kirill [66]3 years ago
7 0

Answer:

SA=62.8\ ft^2

Step-by-step explanation:

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WITCHER [35]

Answer: 1/4 OR 1/8

Step-by-step explanation:

the first coin can be heads which has a 1/2 chance of happening and the other coin also has a chance to get tails which is 1/2

if you add the 1/2 and the other 1/2 you can get 1/4 OR 1/8

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2 years ago
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2^x + 2^-x =5/2 pls I need d. ans​
yKpoI14uk [10]

Answer:

x= 1, -1

Step-by-step explanation:

6 0
3 years ago
What is the measure of Angle B A C?
Simora [160]
It's 180-50-50=180-100=80°
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Use the image below to answer the following question. Find the value of sin x° and cos y°. What relationship do the ratios of si
Inessa [10]

Using relations in a right triangle, it is found that:

  • \sin{x} = \frac{6}{10} = 0.6
  • \cos{y} = \frac{6}{10} = 0.6
  • Since x and y are complementary angles, we have that sin(xº) = cos(yº).

<h3>What are the relations in a right triangle?</h3>

The relations in a right triangle are given as follows:

  • The sine of an angle is given by the length of the opposite side to the angle divided by the length of the hypotenuse.
  • The cosine of an angle is given by the length of the adjacent side to the angle divided by the length of the hypotenuse.
  • The tangent of an angle is given by the length of the opposite side to the angle divided by the length of the adjacent side to the angle.

The hypotenuse in this problem is given as follows:

h^2 = 6^2 + 8^2

h = \sqrt{100}

h = 10.

The sine of x is:

\sin{x} = \frac{6}{10} = 0.6

The cosine of y is:

\cos{y} = \frac{6}{10} = 0.6

Since x and y are complementary angles, we have that sin(xº) = cos(yº).

More can be learned about relations in a right triangle at brainly.com/question/26396675

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[50 pts, will mark right answer as Brainliest] A bag contains the following prize tickets:
liraira [26]

Answer:

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Step-by-step explanation:

<u>Total number of tickets:</u>

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<u>Number of slushie or an ice cream sundae prize tickets:</u>

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<u>Probability of drawing a slushie or an ice cream sundae prize ticket:</u>

  • 12/20 = 0.6

<u>Predicted number of times a slushie or an ice cream sundae prize ticket will be drawn:</u>

  • 190*0.6 = 114
6 0
3 years ago
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