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finlep [7]
3 years ago
12

Five gal of water are added to a pool each minute.

Mathematics
2 answers:
il63 [147K]3 years ago
8 0
It would take 16 minutes to fill up an 80 gal of water
HOPE THIS HELPS
Sedaia [141]3 years ago
8 0

Answer:

It would take 16 minuets to fill the pool with 80 gallons.

Step-by-step explanation:

Five gal of water are added to a pool each minute.

The number of minutes that must pass until the pool contains 80 gal of water will be = \frac{80}{5} =16 minutes.

So, it would take 16 minuets to fill the pool with 80 gallons.

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Step-by-step explanation:

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3 years ago
In testing the lethal concentration of a chemical found in polluted water. it is found that a certain concentration will kill 20
sasho [114]

Answer:

a) 0.1091

b) 0.9994

c) 0.5886

Step-by-step explanation:

X = the number of fish out of 20 that die after 24 hours

x = 0, 1, 2, . . . , 20

X~ Binomial (n= 20, p =0.20)

P(14 survive) = P(X = 6)

= nC_r p^r q^{n-r}= 20C_6 0.2^6\times0.8^{14}=0.1091

Similarly we can find out

P(at least 10 survive) = P( X <= 10 ) = (Using technology) = 0.9994

P(at most 16 will survive) = P(X <= 16) = (Using technology) = 0.5886

7 0
3 years ago
If cos(θ)=2853 with θin Q IV, what is sin(θ)?
marysya [2.9K]

Answer: \sin \theta=\frac{-45}{53}

Step-by-step explanation:

Since we have given that

\cos\theta=\frac{28}{53}

And we know that θ is in the Fourth Quadrant.

So, Except cosθ and sec θ, all trigonometric ratios will be negative.

As we know the "Trigonometric Identity":

\cos^2\theta+\sin^2\theta=1\\\\\sin \theta=\sqrt{1-\cos^2\theta}\\\\\sin \theta=\sqrt{1-(\frac{28}{53})^2}=\sqrt{\frac{53^2-28^2}{53^2}}\\\\\sin \theta=\sqrt{\frac{2025}{53^2}}\\\\\sin \theta=\frac{45}{53}

It must be negative due to its presence in Fourth quadrant.

Hence, \sin \theta=\frac{-45}{53}

7 0
3 years ago
Mr. Enloe uses a 3-foot-long piece of wood to build a square frame. Mr. Enloe cuts the wood in 4
meriva

Answer:

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3 0
3 years ago
Read 2 more answers
How do you solve this problem
torisob [31]
Divide the price by the number of payments.

$15,480/36 = $430
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