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liraira [26]
2 years ago
15

Please see the screenshot.

Mathematics
1 answer:
sesenic [268]2 years ago
6 0

Answer:

the answer is c, (-10,4) and the radius is 10

Step-by-step explanation:

Hope this helps!❆

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A balloon has a circumference of 28 in use the circumference to approximate the surface area of the ballon to the nearest square
nikklg [1K]

The surface area of the balloon is 249 in².

<h3>What is the surface area of the balloon ?</h3>

A balloon has the shape of a sphere. The distance round the sphere is equal to the circumference of the sphere.

Circumference of the sphere = 2πr

Where:

  • r = radius
  • π = pi = 22 / 7

Radius - circumference / 2π

28 / ( 2 x 22/7) = 4.45 inches

Surface area of a sphere = 4πr²

4 x 22/7 x 4.45² = 249 in²

To learn more about the surface area of a sphere, please check: brainly.com/question/27267844

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5 0
1 year ago
How many seconds are in 20 days math ??
navik [9.2K]

Answer:

1,728,000

Step-by-step explanation:

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3 years ago
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Which graph represents (x,y)-pairs that make the equations y= 0.5x true?
tatyana61 [14]

Answer:

Option C

Step-by-step explanation:

To find the corresponding graph substitute values of x.

The graph is: $ y = \frac{1}{2} x $. Substitute $ x = 2 $.

We get: $ y = \frac{1}{2} (4) = 2 $. In the graphs only in Option C, y = 2 when x = 4.

3 0
3 years ago
A person stands 15 ft from an elephant. Determine how tall the elephant is in feet, the given diagram.
Leno4ka [110]

Answer:

The height of the elephant is \dfrac{15}{\sqrt3}\ ft.      

Step-by-step explanation:

It is given that,

Distance between a person and an elephant is 15 ft

The angle of elevation of the elephant is 30 degrees.

We need to find the height of the elephant. For this let us consider that height is h. So,

\tan\theta=\dfrac{P}{B}\\\\\tan(30)=\dfrac{h}{15}\\\\h=15\times \tan(30)\\\\h=\dfrac{15}{\sqrt3}\ ft

So, the height of the elephant is \dfrac{15}{\sqrt3}\ ft.      

7 0
3 years ago
Alexander can earn money for the cans he recycles. Which of the following statements describes the variables in this situation c
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A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist.
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3 years ago
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