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3 years ago

Please help me with this.

Mathematics

1 answer:

alisha [4.7K]3 years ago

3 0

Answer

8.5

Step-by-step explanation:

43 - 3d = d + 9

43 = d + 3d + 9

43 - 9 = 3d + d

34 = 4d

34/4 = 4d/4

8.5 = d

btw its a bit rude just to delete my answer you shouldve just asked for me to show an explanation

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sand falls from an overhead bin and accumulates in a conical pile with a radius that is always four times its height. suppose th

blagie [28]

Answer:

$\frac{dv}{dt} =7239.168 cm/sec$

Step-by-step explanation:

From the question we are told that:

Rate $\frac{dh}{dt}=1cm$

Height $h=12cm$

Radius $r=4h$

Generally the equation for Volume of Cone is mathematically given by

$V=\frac{1}{3}\pi r^2h$

$V=\frac{1}{3}\pi (4h)^2h$

Differentiating

$\frac{dv}{dt} =\frac{16}{3}\pi3h^2\frac{dh}{dt}$

$\frac{dv}{dt} =\frac{16}{3}*3.142*3*12^2*1$

$\frac{dv}{dt} =7239.168 cm/sec$

7 0

3 years ago

Can some one help me with 1,2, and 4

Alina [70]

Answer:

I got 76 for #1 your welcome

4 0

3 years ago

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1) Graph this equation:<br> y = -1/2x + 4

vichka [17]

It should look like this

3 0

3 years ago

Consider the rule y = 5x + 7.

maksim [4K]

Answer:

see below

Step-by-step explanation:

Consider the rule y = 5x + 7.

a. How many tiles are in Figure 0?

In figure 0, we let x=0

y = 5*0+7 = 0+7 = 7

b. Which figure has 37 tiles?

This means y = 37

37 = 5x+7

Subtract 7 from each side

37-7 = 5x+7-7

30 = 5x

Divide by 5

30/5 = 5x/5

6 =x

Figure 6 has 37 tiles

c. In the equation y = mx + b, what do the letters m and b represent?

m is the slope or how much it is increasing each time x increases by 1 and b is how much we start with when x =0

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3 years ago

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DedPeter [7]

XYA = (104 -52)/2

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8 0

2 years ago

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Please help me with this.​

Please help me with this.