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1 year ago

The answer is 2(sign)21 I need help with the work

Mathematics

1 answer:

wariber [46]1 year ago

4 0

Using Pythagoras:

$4^2+x^2=10^2\Longrightarrow x^2=10^2-4^2=100-16\text{ = }84\Longrightarrow x\text{ = }\sqrt[]{84}$ $x=\sqrt[]{84\text{ }}=\sqrt[]{2\cdot42}\text{ = }\sqrt[]{2\cdot2\cdot21}\text{ = }\sqrt[]{21\cdot2^2}\text{ =2}\cdot\sqrt[]{21}$

Answer:

$2\cdot\text{ }\sqrt[]{21}$

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A cylinder has an 18-inch diameter and is 15 inches tall. It is filled to the top with water. A 6-inch-diameter ball is placed w

evablogger [386]

The water in the cylinder will be 1179π in³. Thus, 2nd answer choice is correct.

<h3>What is the volume of a right circular cylinder?</h3>

Suppose that the radius of the considered right circular cylinder be 'r' units.

And let its height be 'h' units.

Then, its volume is given as:

$V = \pi r^2 h \: \rm unit^3$

A cylinder has an 18-inch diameter and is 15 inches tall. It is filled to the top with water.

A 6-inch-diameter ball is placed within the cylinder, and then the cylinder is filled with water.

We have to find the volume of the empty cylinder and then the volume of the ball.

Subtract the latter from the former.

The volume of the cylinder = πr^2h.

= π(9 in)²(15 in)

= 1215π in³

Volume of the ball = (4/3)π(3 in)³

= 36π in³

Subtracting

= 1215π in³ - 36π in³

= 1179π in³

Thus, 2nd answer choice is correct.

Learn more about the volume of cylinder here:

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2 years ago

Y=−2x+9 write in standard form

oksian1 [2.3K]

Answer:

2 x − y = − 9

Step-by-step explanation:

I am not 100% sure but I think this is right.

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3 years ago

Read 2 more answers

2. Katryn swims at a rate of 50 meters in 40 seconds. At this rate, how many meters

Sunny_sXe [5.5K]

Answer:

D.) 75 meters

Step-by-step explanation:

1 minute is 60 seconds

So, you divide 60 divided by 40=1.5

1.5 times 50=75

75 meters

D.)

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3 years ago

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nasty-shy [4]

Answer:

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Step-by-step explanation:

Given

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Required

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First, translate y, 5 units left.

The rule is:

$(x,y) \to (x + 5,y)$

So, we have:

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Hence, the transformation is:

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3 years ago

You organize a garage sale. You have $30 at the beginning of the sale. You earn an average of $20 per hour. Write an equation th

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3 years ago