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2 years ago

Which one answers this equation

Mathematics

1 answer:

Rom4ik [11]2 years ago

5 0

Answer:

divided

Step-by-step explanation:

none of these work but if u divided it you would get 32 noe of them give you -32

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Name the fraction equivalent to 20 over 6

navik [9.2K]

10/3. To find this answer you have to either multiply or divide by a specific number. You choose the number that goes into each of them. In this case I divided by 2 to both the top and bottom number. When I did this I got the answer of 10/3

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2 years ago

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Solve and graph the inequality. 4/5x + 5 < -3

kiruha [24]

For the Solving Part, Answer is: −110<x<0

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2 years ago

Maria cut a 5.25 inch piece of string into pieces that are each 0.75 inches long how many pieces of string did she cut.

Margaret [11]

There will be 7 pieces

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Gravel is being dumped from a conveyor belt at a rate of 20 ft3 /min and its coarseness is such that it forms a pile in the shap

pantera1 [17]

Answer:

The height of the pile is increasing at the rate of $\mathbf{ \dfrac{20}{56.25 \pi} \ \ \ \ \ ft/min}$

Step-by-step explanation:

Given that :

Gravel is being dumped from a conveyor belt at a rate of 20 ft³ /min

i.e $\dfrac{dV}{dt}= 20 \ ft^3/min$

we know that radius r is always twice the diameter d

i.e d = 2r

Given that :

the shape of a cone whose base diameter and height are always equal.

then d = h = 2r

h = 2r

r = h/2

The volume of a cone can be given by the formula:

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

$V = \dfrac{\pi (h/2)^2 h}{3}$

$V = \dfrac{1}{12} \pi h^3$

$V = \dfrac{ \pi h^3}{12}$

Taking the differentiation of volume V with respect to time t; we have:

$\dfrac{dV}{dt }= (\dfrac{d}{dh}(\dfrac{\pi h^3}{12})) \times \dfrac{dh}{dt}$

$\dfrac{dV}{dt }= (\dfrac{\pi h^2}{4} ) \times \dfrac{dh}{dt}$

we know that:

$\dfrac{dV}{dt}= 20 \ ft^3/min$

So;we have:

$20= (\dfrac{\pi (15)^2}{4} ) \times \dfrac{dh}{dt}$

$20= 56.25 \pi \times \dfrac{dh}{dt}$

$\mathbf{\dfrac{dh}{dt}= \dfrac{20}{56.25 \pi} \ \ \ \ \ ft/min}$

The height of the pile is increasing at the rate of $\mathbf{ \dfrac{20}{56.25 \pi} \ \ \ \ \ ft/min}$

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3 years ago

Rewrite the equation in vertex form. Name the vertex and y-intercept. y=3/5x^2+30x+382

Serga [27]

(y-7) = 3/5 (x+25)^2 so the y intercept is -7 and the vertex is 35

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3 years ago

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