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N76 [4]
3 years ago
15

 If you continue operating the tractor at its current level, how many acres can you expect to fertilize in the next hour?

Mathematics
1 answer:
GenaCL600 [577]3 years ago
8 0

Answer:

1573928-839=15070738

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What is the area of a circle with a radius of 1 foot?<br><br> 1/4<br><br> 1/2<br><br> 2<br><br> n
solong [7]

Answer:

A=\pi r^2\\=3.14m^2\\=\pi

Step-by-step explanation:

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4 years ago
Which personal pronoun agrees with its antecedent and correctly completes the sentence?
natka813 [3]
The subject of the sentence, girl, is a singular noun. It requires a singular personal pronoun. That is her.

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3 years ago
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-2x - 4 (-6x + 14) = 76<br><br> What is X?
konstantin123 [22]
Hello,
First, we distribute the -4 to -6x + 14 to get a resulting expression of 24x - 56. Now, our total equation is -2x + 24x - 56 = 76. Next, we combine like terms on the left side of the equation, and that results in 22x - 56 = 76. Now, we add 56 to both sides to get 22x = 132. Finally, we divide both sides by 22 to get x = 6. Therefore, the value of x is 6. Hope this helps and have a great day!
5 0
3 years ago
Match each binomial with its factors.
Tatiana [17]
The binomials needed to be factored are examples of perfect square binomials, so the factors should contain the square root of the expressions inside the binomial. The pairs are, 16 x^{2} -1 and (4x-1)(4x+1), 4 x^{2} -9 and (2x+3)(2x-3), 4 x^{2} -1 and (2x-1)(2x+1), the last one is a bit tricky because its factors still has a common factor that can be taken out and it is, 16 x^{2} -4 and 4(2x+1)(2x-1)
8 0
3 years ago
Water is drained out of tank, shaped as an inverted right circular cone that has a radius of 4cm and a height of 16cm, at the ra
bearhunter [10]

Answer:

\frac{dh}{dt}=-\frac{1}{2\pi}cm/min

Step-by-step explanation:

From similar triangles, see diagram in attachment

\frac{r}{4}=\frac{h}{16}


We solve for r to obtain,


r=\frac{h}{4}


The formula for calculating the volume of a cone is

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


We substitute the value of r=\frac{h}{4} to obtain,


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


This implies that,

V=\frac{1}{48}\pi h^3


We now differentiate both sides with respect to t to get,

\frac{dV}{dt}=\frac{\pi}{16}h^2 \frac{dh}{dt}


We were given that water is drained out of the tank at a rate of 2cm^3/min


This implies that \frac{dV}{dt}=-2cm^3/min.


Since we want to determine the rate at which the depth of the water is changing at the instance when the water in the tank is 8cm deep, it means h=8cm.


We substitute this values to obtain,


-2=\frac{\pi}{16}(8)^2 \frac{dh}{dt}


\Rightarrow -2=4\pi \frac{dh}{dt}


\Rightarrow -1=2\pi \frac{dh}{dt}


\frac{dh}{dt}=-\frac{1}{2\pi}






3 0
4 years ago
Read 2 more answers
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