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MrRa [10]
3 years ago
12

Which rate represents 400 compliments for every 850 reviews?

Mathematics
1 answer:
nirvana33 [79]3 years ago
5 0
8 compliments/ 17 reviews
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You and a friend want to know how much rope you need to climb a large rock. your friend is 5.5 feet tall and casts a shadow that
Neko [114]
The concept useful in finding the answer to this item is ratio and proportion, the ratio of the height of your friend with the shadow casted should be proportional to the height of the rock with the length of the shadow it cast. That is,
                       5.5 ft / 18 ft = x ft/ 209.5 ft
The value of x from the equation above is 64 ft. 
4 0
3 years ago
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For the function shown below, find f(3): f(x)=2x^4-8x^2+5x-7
a_sh-v [17]

We have been given the function

f(x)=2x^4-8x^2+5x-7

We have to find the value of f(3). In order to find the same, substitute x=3 in the given function.

f(3)=2(3)^4-8(3)^2+5(3)-7

Now, we simplify this step by step.

First of all 3^4=81\text{ and }3^2=9. Thus, we have

f(3)=2\times 81 -8\times 9+5(3)-7

Now, we can easily simplify it by PEMDAS

f(3)=162-72+15-7

f(3)=98


Therefore, the value of f(3) is 98.

3 0
2 years ago
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True or false? Please help.​
maks197457 [2]

Answer:

True

Step-by-step explanation:

Vertical angles are angles that essentially opposite of eachother. Vertical angles are a pair of opposite angles formed by intersecting lines.

6 0
2 years ago
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It costs a farmer $43.60 per acre to harvest corn. how much does it cost to harvest 1,325.5 acres?
tamaranim1 [39]

Answer:

$5779.18

Step-by-step explanation:

43.60x 1325.5= 5779.18

5 0
3 years ago
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The beetle ran from 4 to 25. What distance did it cover? If the whole run took the bug 3 seconds, what was its average speed?
Montano1993 [528]

Answer:

I don't know what the unit of measurement is, so I'll say the distance is 21. As for the average speed, its average speed is 8 per second.

Step-by-step explanation:

4 0
2 years ago
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