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3 years ago

The janitor found that it was leaking at a rate of 6 fl oz per minute. How fast was the pipe leaking in gallons per hour?

Mathematics

1 answer:

Tom [10]3 years ago

3 0

360 per hour, pretty sure this is correct !

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If sin square theta = 0.75, then cos =

sergeinik [125]

Answer:

$\cos\theta=\pm0.5$

Step-by-step explanation:

Given:

$\sin^2\theta=0.75$

To find $\cos\theta$

Using trigonometric relations for sums and differences of squares of the ratios.

We know:

$\sin^2\theta+\cos^2\theta =1$

Plugging in $\sin^2\theta=0.75$ in the above relation.

$0.75+\cos^2\theta =1$

Subtracting both sides by 0.75.

$0.75+\cos^2\theta-0.75 =1-0.75$

$\cos^2\theta =0.25$

Taking square root both sides.

$\sqrt{\cos^2\theta} =\sqrt{0.25}$

∴ $\cos\theta=\pm0.5$ (Answer)

6 0

3 years ago

(1.8x10^5)divided by(3x10^6) in standard form?

Softa [21]

Answer:

0.06

Step-by-step explanation:

Given data:

$1.8(10^{5})$ divided by 3× $10^{6}$

Now,

$\frac{(1.8)10^{5} }{3(10^{6}) } \\=0.6(10^{5-6} )\\=0.6(10^{-1} )\\=0.06$

Answer will be 0.06

5 0

3 years ago

Help please!!! I just seriously need help I'm bad at math>

azamat

There is only 1 real number solution

8 0

4 years ago

When two people each measured a windows width, their results were 79 cm and 786 mm. Are these results equally precise? Explain.

rosijanka [135]

The second result is more precise because it's in millilitre,so if the first were to be fully precise,it should have been 78.6 cm.

Hope this helps!

4 0

3 years ago

Triangle J K L is shown. Angle K L J is a right angle. The length of hypotenuse K J is 10.9 centimeters and the length of L J is

scZoUnD [109]

Answer:

sin−1(StartFraction 8.9 Over 10.9 EndFraction) = x

Step-by-step explanation:

From the given triangle JKL;

Hypotenuse KJ = 10.9

Length LJ is the opposite = 8.9cm

The angle LKJ is the angle opposite to side KJ = x

Using the SOH CAH TOA Identity;

sin theta = opp/hyp

sin LKJ = LJ/KJ

Sinx = 8.9/10.9

x = arcsin(8.9/10.9)

sin−1(StartFraction 8.9 Over 10.9 EndFraction) = x

7 0

3 years ago

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