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Ronch [10]
3 years ago
12

A cone has a volume of 432π cm³ and a height of 9 cm. Calculate the radius of the cone.

Mathematics
2 answers:
Rainbow [258]3 years ago
6 0

Answer:

Step-by-step explanation:

r = √3 v/πh

Putting values

= 6.77

weqwewe [10]3 years ago
4 0

Answer:

nnnnnnnnnnnnnnnnnx ce 3rd d

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your long distance telephone provider offers two plans, Plan A has a monthly fee of $15 and $0.25 per minute. Plan B has a month
Nitella [24]
Plan A:

15+(0.25x)

15+(0.25×80)

15+(20)

35

Plan B:

20+(0.05x)

20+(0.05×300)

20+(15)

35

I am sure there are other numbers that you can use but I just choose the number 35! Good luck!
6 0
3 years ago
Graph the function. For the function whose graph is shown below, which is the correct formula for the function? y = –x – 1 y = x
rusak2 [61]
You forgot to mention the graph.
So, I make the graph of both given functions and you will compare your graph with them.

First, y= -x-1  
put y=0 you get point (-1,0) called x-intercept
put x=0 you get point (0,-1) called y-intercept
join both the points, you will get the graph
Graph is attached in the picture.

Second, y= x+1
put y=0 you get point (-1,0) called x-intercept
put x=0 you get point (0,1) called y-intercept
join both the points, you will get the graph
Graph is attached in the picture.

4 0
3 years ago
If there are 20 values in a data set in order from smallest to largest, what is
Natasha_Volkova [10]

Answer:

C The mean of the 10th and 11th values

Step-by-step explanation:

Strike the lowest and largest number until you get 1 or 2:

1, 2, 3,4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20

2, 3,4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19

3,4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18

4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17

5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16,

,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15

,7 8, 9, 10, 11, 12, 13 ,14,

8, 9, 10, 11, 12, 13

9, 10, 11, 12

10, 11,

Finding the Mean:

10+11

21

21/2

Mean:

10.5

8 0
3 years ago
Which mathematical property is demonstrated?<br><br> (25 + 84) + 16 = 25 + (84 + 16)
Valentin [98]
This is the associative property of addition because the grouping of addends does not change the some no matter where you place the numbers in the parenthesis.
5 0
3 years ago
Read 2 more answers
Joni has a circular garden with a diameter of 16.5. If she uses 2 teaspoons of fertilizer for every 25 square feet of garden how
Murljashka [212]

Answer:

17.106 Teaspoons of fertilizer

Step-by-step explanation:

Joni has a circular garden with a diameter of 16.5. If she uses 2 teaspoons of fertilizer for every 25 square feet of garden how many teaspoons of fertilizer will Joni need for her entire garden?

Step 1

We calculate the area of the garden.

The garden is circular in shape.

Area of a circle = πr²

r = radius = Diameter/2

Diameter = 16.5 ft

r = 16.5/2

r = 8.25 ft

Area of the circle = π × 8.25²

Area of the circle (Garden) = 213.82464998 ft²

Approximately = 212.825ft²

Step 2

If she uses 2 teaspoons of fertilizer for every 25 square feet of garden how many teaspoons of fertilizer will Joni need for her entire garden?

25 ft² = 2 teaspoons of fertilizer

212.825ft² = x

Cross Multiply

25 ft² × x = 212.825ft² × 2

x = 213.825× 2/25 ft²

x = 17.106 Teaspoons of fertilizer

3 0
3 years ago
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