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Nookie1986 [14]
3 years ago
11

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. The di

ameter of the base of the cone is approximately three times the altitude. At what rate (in ft/min) is the height of the pile changing when the pile is 12 feet high? (Hint: The formula for the volume of a cone is V = 1 3 πr2h.)
Mathematics
1 answer:
anzhelika [568]3 years ago
6 0
Don’t trust my word I just need to answer questions i’m so sorry
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What is the fourth row of Pascal’s triangle?
Anna [14]

Answer:

14641

Step-by-step explanation:

formular \: for \: the \: digits \: in \: each \\ row \: of \: a \: pascal \: triangle \: is \:  = 11 {}^{n}  \\ row \: 0 =  \: 11 {}^{0}  = 1 \:  \\ row \: 1 \:  = 11 {}^{1}  = 11 \\ row \:  \: 2 \:  = 11 {}^{2}  = 121 \\ row \: 3 =  \: 11 {}^{3}  = 1331  \\ row \: 4 = 11 {}^{4}  = 14641 \\ therefore \: the \: fourth \: row \: is \: 14641

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You have $28, and you want to get half-dollar coins from the bank to give to children who come into your store. What is the most
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E, 56, because you have 28 dollars, and you have to multiply that by two to get half dollars. 28*2=56.
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17 divided by 3 1/2 Other things ain't working right now so I'm using this.
romanna [79]
Here is your answer friend

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Martha has driven about 2/3 the distance she needs to go to reach her aunt's house. Her brother Jackson is making the same trip
Harman [31]
The answer is A. Martha has a shorter distance left to get to the aunt’s house than Jackson since 2/3 is .667 or 67%. Therefore this statement is false
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Pls show work! questions on pic
Lena [83]

Answer:

a.(10,23)

b.(7,30)

e.(20,20)

Step-by-step explanation:

We are given that

x=Width of garden

y=Length of garden

According to question

x\geq 5

y\geq 20

Perimeter of rectangle=2(x+y)

Where x=Width  of rectangle

y=Length of rectangle

Fencing used =2(x+y)

2(x+y)\leq 80

First we change inequality  into equality

x=5...(1)

y=20...(2)

2(x+y)=80

x+y=40...(3)

Substitute x=0 in equation (3)

y=40

Substitute y=0  in equation (3)

x=40

Substitute x=0 and y=0 in equation (3)

2(x+y)\leq 80

0\leq 80

It is true. Therefore, the  shaded region below the line.

0\geq 5

0\geq 20

These are false equation .Therefore, the shaded region above the line.

Substitute x=5 in equation (3)

5+y=40

y=40-5=35

Substitute y=20 in equation (3)

x+20=40

x=40-20=20

Intersection point of equation (1) and (3) is (5,35) and intersect point of equation (2) and (3) is (20,20).

Now,

a.(10,23)

Substitute in

2(x+y)\leq 80

2(10+23)\leq 80

66\geq 80

10>5 and 23>20

it satisfied all inequality.

Hence, it is a solution.

b.(7,30)

7>5

30>20

2(7+30)=74

it satisfied all inequality.

Hence, it is a solution.

c.(18,25)

18>5

25>20

2(18+25)=86>80

It does not satisfied third inequality

Hence, it is not a solution.

d.(8,35)

8>5

35>20

2(8+35)=86>80

It does not satisfied third inequality

Hence, it is not a solution.

e.(20,20)

2(20+20)=80

20>5

20=20

it satisfied all inequality.

Hence, it is a solution.

4 0
3 years ago
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