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2 years ago

How do you do this?

Mathematics

1 answer:

Gnoma [55]2 years ago

8 0

To find the volume of a cone use the formula: V= pi(3.14) x radius squared x height divided by 3

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A circle with the diameter of 40 inches. what is the area?

Vsevolod [243]

Answer:

A= 1256

Step-by-step explanation:

The formula for area of a circle is $A=\pi r^{2}$

1. Diameter is DOUBLE of radius, so the diameter must be divided by 2. 40/2 = 20.

2. Then, plug in the values into the area formula. A= 3.14 $(20^{2})$

3. Solve. A= 1256. (Remember that 20 squared is 20x20)

7 0

2 years ago

7(x -2) + 3(x + 2) = 5(x - 6)

horsena [70]

Answer: x= -22/5

Step-by-step explanation:

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2 years ago

Something weird was happening in space! Twenty-nine planets all bumped into each other planets once. How many bumps were felt th

gogolik [260]

Answer:

Do you mean how many waves of sound and light went through the galaxy

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3 years ago

Which shows the expression in the order they would appear on a number line from least to greatest GIVING BRAINIEST

Ber [7]

Answer:

C, the 3rd one

Hope this helped! Have a great day!

3 0

2 years ago

Maci and I are making a small kite. Two sides are 10". Two sides are 5". The shorter diagonal is 6". Round all your answers to t

Art [367]

Answer:

A. 4".

B. Approximately 9.54".

C. Approximately 13.54".

Step-by-step explanation:

Please find the attachment.

Let x be the distance from the peak of the kite to the intersection of the diagonals and y be the distance from the peak of the kite to the intersection of the diagonals.

We have been given that two sides of a kite are 10 inches and two sides are 5 inches. The shorter diagonal is 6 inches.

A. Since we know that the diagonals of a kite are perpendicular and one diagonal (the main diagonal) is the perpendicular bisector of the shorter diagonal.

We can see from our attachment that point O is the intersection of both diagonals. In triangle AOD the side length AD will be hypotenuse and side length DO will be one leg.

We can find the value of x using Pythagorean theorem as:

$(AO)^2=(AD)^2-(DO)^2$

$x^{2}=5^2-3^2$

$x^{2}=25-9$

$x^{2}=16$

Upon taking square root of both sides of our equation we will get,

$x=\sqrt{16}$

$x=\pm 4$

Since distance can not be negative, therefore, the distance from the peak of the kite to the intersection of the diagonals is 4 inches.

B. We can see from our attachment that point O is the intersection of both diagonals. In triangle DOC the side length DC will be hypotenuse and side length DO will be one leg.

We can find the value of y using Pythagorean theorem as:

$(OC)^2=(DC)^2-(DO)^2$

Upon substituting our given values we will get,

$y^2=10^2-3^2$

$y^2=100-9$

$y^2=91$

Upon taking square root of both sides of our equation we will get,

$y=\sqrt{91}$

$y\pm 9.539392$

$y\pm\approx 9.54$

Since distance can not be negative, therefore, the distance from intersection of the diagonals to the top of the tail is approximately 9.54 inches.

C. We can see from our diagram that the length of longer diagram will be the sum of x and y.

$\text{The length of the longer diagonal}=x+y$

$\text{The length of the longer diagonal}=4+9.54$

$\text{The length of the longer diagonal}=13.54$

Therefore, the length of longer diagonal is approximately 13.54 inches.

3 0

2 years ago

How do you do this?​

How do you do this?