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Fantom [35]
3 years ago
15

Can someone answer these pls!! I will be glad to have you answer them !! I need this done by tomorrow!

Mathematics
1 answer:
BARSIC [14]3 years ago
5 0

Answer:

7/8=0.875   7/20=0.35   18/20=0.9    7/8=0.875    68/50=1.36     25/20=1.25 26/25=1.04   11/10=1.1     11/16=0.6875  9/16=0.5625  33/40=0.825  23/40=0.575   14/10=1.4     29/25=1.16  39/40=0.975

Step-by-step explanation:

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Which of the following does not cycle into the atmosphere? a. the carbon cycle b. the phosphorus cycle c. the nitrogen cycle d.
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Answer: b. the phosphorus cycle

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3 years ago
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A homeowner plans to enclose a 200 square foot rectangular playground in his garden, with one side along the boundary of his pro
tigry1 [53]

Answer:

The dimensions are 50 and 100 square foot

Step-by-step explanation:

Let x = length of fenced side parallel to the side that borders the playground

   y = length of each of the other two fenced sides  

Then, x + 2y = 200

<=> x = 200-2y

The Area = xy = y(200-2y)

The dimensions of the playground that will minimize the homeowner's total cost for materials when the area of the playground is maximum. He can cover more area but with the same cost.

The graph of the area function is a parabola opening downward.

The maximum area occurs when y = -200/[2(-2)] = 50

=> x = 100

So the dimensions are 50 and 100 square foot

6 0
4 years ago
Q8 Q3.) Solve the system by the substitution method.
inn [45]
Recall that (x+y)^2=x^2+2xy+y^2. So we can add twice the first equation to the second one to get

x^2+y^2+2xy=10+2\cdot3\iff(x+y)^2=16\implies x+y=\pm4

Since xy=3, we have y=\dfrac3x (x\neq0) so

x+y=x+\dfrac3x=\pm4\implies x^2\mp4x+3=0

If x+y=4, then

x^2-4x+3=(x-3)(x-1)=0\implies x=3,x=1\implies y=1,y=3

If x+y=-4, then

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So the solution set is

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3 0
3 years ago
What are the first two answers? #16 and #17
Luden [163]
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5 0
3 years ago
Jake volunteers to help out his younger brother's basketball team in his free time. One of his tasks is to ensure that all the b
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Answer:

2141.76 cubic inches

Step-by-step explanation:

Given that it measures 8.8 inches across a properly inflated basketball i.e. the diameter of each basketball is 8.8 inches.

So, the radius of the spherical ball is \frac{8.8}{2} =4.4 inches.

Now, a spherical solid has a volume given by \frac{4}{3} \pi r^{3}.

Hence, volume of air in side each basketball is = \frac{4}{3} \times \frac{22}{7}\times 4.4^{3} = 356.96 cubic inches.

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4 0
3 years ago
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