3 years ago

The table below shows the cost for a factory to produce mid-sized cars.

Mathematics

1 answer:

quester [9]3 years ago

6 0

Just divide them

cost/3cars=16194/3cars=5398/1car

answer is A

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9. Find the dimensions of the 4 triangular faces of the pyramid. (Height is 55.5 ft)

Minchanka [31]

Answer:

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Step-by-step explanation:

We have a 4-sided triangular pyramid , where

$Q=\frac{\pi}{2}*H\\P=Q*\sqrt{\frac{1}{2}+\frac{4}{\pi ^{2}}}\\Q=\frac{\pi}{2}*55.5ft=87.18ft\\P=87.18ft*\sqrt{\frac{1}{2}+\frac{16}{\pi ^{2}}}=87.18*0.9515=82.95ft\\$

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3 years ago

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lesya692 [45]

I rounded each number to the nearest whole number and added those.

29 + 79 + 42 = 150

If you add the original numbers you would get 149.5, which rounds to 150.

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dmitriy555 [2]

X+y=2 (label equation one)
x-y=4 (label equation two)

y=-x+2 (equation one rearranged, label this equation equation three)

sub 3 into 2
x-(-x+2)=4
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2x-2=4
2x=6
x=3
sub x=3 into equation one

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y=-1

therefore x=3 and y=-1

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ICE Princess25 [194]

It would round to 124,610

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