3 years ago

Match the expression with its name 9x^4-3x+4

Mathematics

1 answer:

Vanyuwa [196]3 years ago

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This expression is in the form of a quadratic

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Ben walks 25 miles from home to work. If he walks the first 5 miles in 1 hour, the second 5 miles in 1.4 hours, the third 5 mile

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<u>Answer:</u>

The total time taken to complete 25 miles is 7.6 hours.

Solution:

Ben walks 5 miles in 1 hour,

Second 5 miles in 1.4 hours,

Third 5 miles in 1.7 hours,

Last 5 miles in 1.8 hours

So he walked total 20 miles in (1+1.4+1.7+1.8) hours = 5.9 hours = 6 hours (approximately)

So his average speed is $\left(\frac{20}{6}\right)$ miles/hours = 3.33 miles/hours.

i.e. he travels 3.3 miles in 1 hour,

Then, he travels 1 miles in $\left(\frac{1}{3.3}\right)$ hours

Hence the total time he will take to walk 25 miles is $\left(25 \times\left(\frac{1}{3.3}\right)\right) \text { hours }$ $\Rightarrow \left(\frac{25}{3.3}\right) \text { hours } = 7.5757 hours$

That is approximately 7.57 or 7.6 hours.

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A music school offers its students 8 different classes each semester. 4 of the classes are in music theory, 3 of the classes are

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You are in $33 in eight hours at that rate how much would you earn in five hours

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20.625 dollars or about 20.63 dollars

Step-by-step explanation:

33/8 = 4.125

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What is 50 percent of 18?

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18*0.5=9

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9

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