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2 years ago

Find the quotient 7192÷9

Mathematics

1 answer:

Lelechka [254]2 years ago

5 0

Answer:

799

Step-by-step explanation:

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A right rectangular prism has a length of 7 centimeters, a width of 5 centimeters, and a height of 4 centimeters.

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v = b x w x h

7 x 5 x 4 = 140 cm cubed

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2 years ago

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A road perpendicular to a highway leads to a farmhouse located d miles away. An automobile traveling on this highway passes thro

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Answer:

$\frac{dh}{dt}=\frac{30r}{\sqrt{d^{2}+900}}$

Step-by-step explanation:

A road is perpendicular to a highway leading to a farmhouse d miles away.

An automobile passes through the point of intersection with a constant speed $\frac{dx}{dt}$ = r mph

Let x be the distance of automobile from the point of intersection and distance between the automobile and farmhouse is 'h' miles.

Then by Pythagoras theorem,

h² = d² + x²

By taking derivative on both the sides of the equation,

$(2h)\frac{dh}{dt}=(2x)\frac{dx}{dt}$

$(h)\frac{dh}{dt}=(x)\frac{dx}{dt}$

$(h)\frac{dh}{dt}=rx$

$\frac{dh}{dt}=\frac{rx}{h}$

When automobile is 30 miles past the intersection,

For x = 30

$\frac{dh}{dt}=\frac{30r}{h}$

Since $h=\sqrt{d^{2}+(30)^{2}}$

Therefore,

$\frac{dh}{dt}=\frac{30r}{\sqrt{d^{2}+(30)^{2}}}$

$\frac{dh}{dt}=\frac{30r}{\sqrt{d^{2}+900}}$

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3 years ago

Peter wallpapered a wall that was 9 feet wide and 8 feet high. He had 27 square feet of wallpaper left over. How many square fee

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Answer:

99 square feet

Step-by-step explanation:

Because 8 times 9=72+27=99

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Answer:

8 is your answer

Step-by-step explanation:

Hope this helps sorry if I'm wrong

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Answer:

The answer is 37

Step-by-step explanation:

180- 143= 37

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2 years ago