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lara [203]
3 years ago
10

Solve for w S=2(lw +lh+wh)

Mathematics
1 answer:
Maksim231197 [3]3 years ago
7 0
<span>Solve for w
S=2(lw +lh+wh)

</span>x = \frac{S - 2hl }{2(h + l)}

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Sammie read at the rate of 25 pages per hour. Alex read at the rate of 1/2 of a pages per minute. Who was reading faster? By how
exis [7]

Answer:

Alex is reading faster by 5 more pages per hour.

Step-by-step explanation:

Alex's rate of reading is 1/2 pages per minute, or 1 page every 2 minutes. To convert his rate to pages per hour, we can divide 60 (minutes in an hour) by 2 (minutes it takes Alex to read a page) which is equal to 30 (pages read in an hour). Therefore, Alex is reading at 30 pages an hour and reading 5 more pages an hour than Sammie.

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2 years ago
Select the correct answer.<br> Which graph represents a proportional relationship?
Dovator [93]

Answer: the answer would be choice A

Step-by-step explanation: it passes through the origin making it a proportional relationship

4 0
3 years ago
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To convert a fraction into a decimal number, divide the denominator by the numerator.
yanalaym [24]

Answer:

Option b. False

Step-by-step explanation:

we know that

A fraction is the quotient between the numerator and denominator.

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so

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6 0
2 years ago
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Find an exact value cos(19pi/12)
dmitriy555 [2]

cos\left ( \frac{9\pi}{12}\right )=\frac{\sqrt{2-\sqrt{3}}}{2}

Step-by-step explanation:

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          cos 2x = 2cos²x - 1

So we have

          cosx=\sqrt{\frac{1+cos2x}{2}}

Substituting x=\frac{19\pi}{12}

         cos\left ( \frac{19\pi}{12}\right )=\sqrt{\frac{1+cos2\left ( \frac{19\pi}{12}\right )}{2}}\\\\cos\left ( \frac{19\pi}{12}\right )=\sqrt{\frac{1+cos\left ( \frac{19\pi}{6}\right )}{2}}\\\\cos\left ( \frac{9\pi}{12}\right )=\sqrt{\frac{1+cos570}{2}}\\\\cos\left ( \frac{9\pi}{12}\right )=\sqrt{\frac{1-\frac{\sqrt{3}}{2}}{2}}\\\\cos\left ( \frac{9\pi}{12}\right )=\sqrt{\frac{2-\sqrt{3}}{4}}\\\\cos\left ( \frac{9\pi}{12}\right )=\frac{\sqrt{2-\sqrt{3}}}{2}

   cos\left ( \frac{9\pi}{12}\right )=\frac{\sqrt{2-\sqrt{3}}}{2}

3 0
2 years ago
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Find z if X=27, μ=20, and α=3.4. Round to the nearest hundredth if necessary.
Scrat [10]

Answer:

A. Z=2.06

Step-by-step explanation:

We want to find the Z-score of X=27 if the population mean is \mu=20,and the population standard deviation is \sigma=3.4.

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Z=\frac{X-\mu}{\sigma}

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Z=\frac{27-20}{3.4}

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Z=2.06

The correct answer is A.

7 0
3 years ago
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