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11Alexandr11 [23.1K]
2 years ago
9

"!I NEED HELP WITH MY MATH PROBLEMS, PLEASE!" (27 POINTS)

Mathematics
2 answers:
Sedaia [141]2 years ago
6 0
25. m = 14h (True)
26. Since circumference of circle is 2πr then it is right to say it is also equal to πd because:

2r = d
therefore 2πr = πd which is the circumference of the circle
Len [333]2 years ago
5 0
25. yes it's direct variation
26. yes

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Suppose each cube in this right rectangular prism is a 1 2 -inch unit cube. What are the dimensions of the prism? What is the vo
lubasha [3.4K]

Answer:

<h2><u><em>The lengths of the sides of a small cube are = foot. Volume of cube = side x side x side. V = = cubic foot. Number of small cubes that can be packed in the prism = = = = 180 cubes. Hence, 180 cubes can be packed into rectangular prism. Part B: Unit cube volume is 1x1x1 =1 cubic foot. So, 180 cubes will have 180 cubic foot volume.</em></u></h2>

Step-by-step explanation:

4 0
2 years ago
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What is the mass of 75¢ in nickels?
Dima020 [189]
According to the United States Mint, the mass of 1 nickel is 5.000 g.

\dfrac{\$0.75}{\$0.05} = 15

There are 15 nickles in 75 cents worth of nickels.

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6 0
3 years ago
Write an equation of the line perpendicular to the given line that contains P.
Shalnov [3]

Answer:

Step-by-step explanation:

perp. -5

y + 7 = -5(x - 4)

y + 7 = -5x + 20

y = -5x + 13

8 0
3 years ago
Solve the system of equations.
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Step-by-step explanation:

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3 years ago
What is the period of y = 8 cos (5pie x + 3pie/2)-9<br> Give an exact value. Units
zzz [600]

\\ \rm\Rrightarrow y=Acos(Bx+C)+D

  • This is the general formula and the period is 2π/B

Now our given function

\\ \rm\Rrightarrow y=8cos\left(5\pi x+\dfrac{3\pi}{2}\right)-9

On comparing we get

  • A=8
  • B=5π
  • C=3π/2
  • D=-9

Period:-

\\ \rm\Rrightarrow \dfrac{2\pi}{B}

\\ \rm\Rrightarrow \dfrac{2\pi}{5\pi}

\\ \rm\Rrightarrow \dfrac{2}{5}

3 0
2 years ago
Read 2 more answers
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