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Lostsunrise [7]
3 years ago
5

Find the volume of a cone with a radius of 3 millimeters and a 7 height of millimeters. Use 22/7 for 3.14 .

Mathematics
1 answer:
wolverine [178]3 years ago
6 0

Answer:

66

Step-by-step explanation:

So the volume of a cone is \pi r^2*\frac{h}{3}

r = 3

h = 7

9\pi *\frac{7}{3} = 21\pi

\frac{22}{7} *21=66

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Diane has $814 in her checking account. If she writes five checks for a total of $287, how much does she have left
gregori [183]

Answer:

$527

Step-by-step explanation:

Find how much she has left by subtracting 287 from 814:

814 - 287

= 527

So, she has $527 left in her account

7 0
3 years ago
Given: P is a point on the perpendicular bisector, I of MN.<br> Prove: PM = PN
Hatshy [7]

Answer:

Step-by-step explanation:

I can't make specific statements about the proof because the midpoint is missing.

Givens

There are two right angles created by where the perpendicular bisector meats MN. Both are 90 degrees.

MN is bisected by the point on MN where the perpendicular meets MN

The Perpendicular Bisector is is common to both triangles.

Therefore the two triangles are congruent by SAS

PM = PN                Parts contained in Congruent triangles are congruent.

5 0
3 years ago
Express each fraction as a percent. Round your answer to the nearest whole number. 76/125
BartSMP [9]

Answer:

  61%

Step-by-step explanation:

Multiply the fraction by 100%.

  76/125 × 100% = (7600/125)% = 60.8% ≈ 61%

3 0
3 years ago
The width of bergstroms dining room table is three feet shorter then the length. If the area of the tabletop is 28 square feet,
weeeeeb [17]
7*4=28
7-4=3
so the width is 4 feet and the length is 7 feet
6 0
3 years ago
Dean put together first boxes for 5 of his neighbors. Each box cost $1.00 and contained a plant and a $3.00 pair of gardening gl
Scorpion4ik [409]
(5 Neighbors) x (($1.00 Box) + (? Plant) + ($3.00 Gloves)) = 42.50

5 x (1 + x + 3) = 42.50

Combine in parens.

5 x (4 + x) = 42.50

Distribute.

20 + 5x = 42.50

Subtract 20 from both sides.

5x = 22.50

Divide both sides by 5.

x = 4.50

Thats the cost of each plant.

Check.

5 x (1 + 4.50 + 3)

5 x 8.50 = 42.50
3 0
3 years ago
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