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2 years ago

Type the correct answer in the box.

Mathematics

1 answer:

lesantik [10]2 years ago

8 0

Height, h of the cone is 3V/πr²

Step-by-step explanation:

Step 1: Find formula for height.

Volume, V = 1/3 πr²h, where r is the radius and h is the height of the cone.

Cross-multiply to find formula for height.

∴ Height, h = 3V/πr²

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Determine the measures of angles x, y, and z 105 y =

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2 years ago

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3 years ago

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Solve the equation square root of x plus three plus four equals five for the variable. Show each step of your solution process

alekssr [168]

Answer:

$x=-2$

Step-by-step explanation:

The given expression is

$\sqrt{x+3}+4=5$

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2 years ago

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At a pet shop 5 herbals out of 15 have black hair and 3 mice out of 9 have black hair. Are the ratios the Same?

dmitriy555 [2]

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3 years ago

Ms. Lynch has 21 coins in nickels and dimes.

bulgar [2K]

Answer:

Step-by-step explanation:So we know x + y = 21 and 5x +10y = 165 We line them up in columns x + y = 21 5x +10y = 165 To eliminate the x variable, I'll multiply every element in the 1st equation by -5. -5x + -5y = -105 5x + 10y = 165 Now we combine (add) the equations, which eliminates x altogether. 5y = 60 ... y = 12 From there, x + 12 = 21 ... x = 21-12 ... x = 9 You should double check. Do 9 nickles and 12 dimes equal $1.65? A very important thing to remember using this method is to do the same thing to each element in the equation that you change! I hope that helps.

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2 years ago