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Ksju [112]
3 years ago
10

A cone and its dimensions are shown in the diagram. Which measurement is closest to the volume of the cone in cubic inches?

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
3 0
20 Cubic Inches^3.

Explanation:

The volume of a cone is Pi*R^2*H*1/3

We know the height, but we are given the diameter instead of radius. So divide 5.625 by 2. You get 2.8125.

Plug everything into the formula.

Pi*2.8125^2*7.5*1/3

(The ^2 means squared, or to the second power)

You get a number close to 20. Since we don’t know Pi, and we are not given a substitute for Pi, we make the answer in terms of Pi.

20 Cubic Inches^3.

Also, people who don’t know the answers to questions shouldn’t just put a random answer for the points. It’s unfair.


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Martin charges $15 for every 5 bags of leaves he rakes. Last weekend, he raked 29 bags of leaves. How much money did he earn?
laila [671]

Answer:

87 or 75 dollars

Step-by-step explanation:

So first we have to 29 by 5 wich gives us 5.8 so he raked 5.8 packs of 5 bags then you multiply 15 by 5.8 so he made 87 dollars

Unless:

Your not counting the point 8 leaves in that case the answer would be 75

8 0
3 years ago
How many solutions does the pair of equations y = 0 and y = -5 have?
Crank

Answer: None

Step-by-step explanation:

y=0 and y=-5 don't have any solutions. When you ask if a pair of equations have a solution, that means there is an intersection of the equations. The 2 equations will meet somewhere, and that is the solution. To find the solution, you set the equations equal to each other.

0≠-5

It is obvious that 0 and -5 are not equal to each other. Therefore, there is no solution. Also, y=0 and y=-5 are horizontal lines that are parallel to each other. They will never meet, which means there will be no intersection. No intersection means no solutions.

8 0
3 years ago
What is the equation that passes through the given point and has the given slope (-2, -1); m= -3
klemol [59]

Answer:

y = - 3x - 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - 3, then

y = - 3x + c ← is the partial equation

To find c substitute (- 2, - 1) into the partial equation

- 1 = 6 + c ⇒ c = - 1 - 6 = - 7

y = - 3x - 7 ← equation of line

3 0
3 years ago
Read 2 more answers
The guidance department has reported that of the senior class, 2.3% are members of key club, K, 8.6% are enrolled in AP physics,
Levart [38]
P(P|K) = 82.6%.

P(P|K) = P(K and P)/P(K) = 1.9%/2.3% = 0.019/0.023 = 0.8261 = 82.6%
4 0
3 years ago
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Hernan cuts a board that is 7/10 of a meter long After the cut the board is 3/10 of a meter long how long is the piece that he c
Darina [25.2K]

Given that original lenght of the board before cut = \frac{7}{10}meter

Lenght of the board that is left after cutting from the original piece by Hernan = \frac{3}{10}meter


Now we have to find the lenght of the piece which is cut.

To find that we just need to subtract smaller piece from larger piece


Required Length = \frac{7}{10}-\frac{3}{10}meter

Required Length = \frac{7-3}{10}meter

Required Length= \frac{4}{10}meter

reduce the fraction

Required Length = \frac{2}{5}meter


Hence final answer is \frac{2}{5} meter.

7 0
3 years ago
Read 2 more answers
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