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Yakvenalex [24]
3 years ago
10

Julie is x years old. Kevin is x+3 years old & Omar is 2x years old. Write an expression , in terms of x , for the mean of t

heir ages.
Mathematics
1 answer:
Umnica [9.8K]3 years ago
7 0

Answer:

(x+x+3+2x)/3 = (4x+3)/3

Step-by-step explanation:

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A cylindrical pail that has the base area of 9 pi inches squared and a height of 10 inches. One friend bought a pyramid mold wit
FromTheMoon [43]

Answer:

  • cylinder — 90π in³
  • pyramid — 37 1/3 in³
  • cone — 12.5π in³

Step-by-step explanation:

The volume of a cylinder is given by ...

  V = Bh . . . . . where B is the base area and h is the height

The volume of a pyramid or cone is given by ...

  V = (1/3)Bh . . . . . where B is the base area and h is the height

The area of a square of side length s is ...

  A = s²

The area of a circle of radius r is ...

  A = πr²

___

Using these formulas, the volumes of these objects are ...

  cylinder: (9π in²)(10 in) = 90π in³

  square pyramid: (1/3)(4 in)²(7 in) = 37 1/3 in³

  cone: (1/3)(π(2.5 in)²)(6 in) = 12.5π in³ . . . . slightly larger than the pyramid

3 0
4 years ago
Help me please please
Nataly_w [17]
This is so easy man like mlg 3260 nsd quickscopes
8 0
3 years ago
Read 2 more answers
The amount of time between interest payments is known as:
son4ous [18]

A. period.

This is the answer

4 0
3 years ago
Read 2 more answers
What are the roots of the quadratic equation below 3x2+15x-5=0
fomenos

Answer:

<h2>A</h2><h2 />

Step-by-step explanation:

3x^2+15x-5=0\\a = 3\\b = 15\\c = -5\\ x = -b\±\frac{\sqrt{b^{2} -4ac} }{2a} \\x = -(15)\±\frac{\sqrt{15^{2} -4(3)(-5)} }{2(3)} \\x = -15 \±\frac{\sqrt{225+60} }{6} \\x = -15\±\frac{\sqrt{285} }{6} = A

8 0
3 years ago
Help me find the scale factor
Andrews [41]

Answer:

1.5

Step-by-step explanation:

of the similar shapes you are only given the lengths of two corresponding sides, 22mm and 33mm

if you do 33/22 you get 1.5 so your scale factor is 1.5

(in order to go from the original shape to the copy times by 1.5, and divide if you know the length of the copy and want to work out the original)

5 0
3 years ago
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