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muminat
3 years ago
8

Each of the four sides of a swimming pool measures 9 meters. The pool is 5 meters deep. How much water will be needed to fill it

completely?
A.
45 cubic meters
B.
81 cubic meters
C.
225 cubic meters
D.
405 cubic meters
Mathematics
2 answers:
larisa86 [58]3 years ago
7 0

Answer:

405 cubic meters (I think...)

Step-by-step explanation:

9 x 9 = 81

81 x 5 = 405

Alexxandr [17]3 years ago
3 0

Answer:

D. 405

Step-by-step explanation:

First, you find the area of the swimming pool without the water. That is 9 x 9 = 81. Then you multiply the area (without water) by 5 to find the area with the water.

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The amount loss : 4 feet
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3 years ago
2. The number of atoms of a particular chemical element is modelled by
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9514 1404 393

Answer:

  a) 600

  b) see below

  c) 1.26 hours

Step-by-step explanation:

a) The value of y when x=0 is the coefficient of the exponential term:

  y = 600·3^(-0) = 600·1 = 600

There were 600 atoms to start.

__

b) see attached for a graph

__

c) The graph shows 150 atoms at t = 1.26, about 1.26 hours after the start of time counting.

If you want to find that value algebraically, substitute for y and solve for x. Logarithms are involved.

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  150/600 = 3^(-x)

  log(1/4) = -x·log(3)

  x = -log(1/4)/log(3) = log(4)/log(3) ≈ 1.2618595

After about 1.26 hours, there were 150 atoms.

6 0
3 years ago
What is the center of the circle?
Arada [10]

Answer:

Step-by-step explanation:

This is not a question we need to at least know it’s equation.

3 0
2 years ago
4/ 20÷16 = ____________ plsss help fast plsss really need help fast
Pachacha [2.7K]

__________________________________

\sf\red{ANSWER}

  • 0.0125

Hope it helps (≡^∇^≡)

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