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Harrizon [31]
3 years ago
9

Cody is twice as old Evan and five years ago the sum of their age was 14. Find the age of each boy

Mathematics
1 answer:
Pani-rosa [81]3 years ago
6 0
Cody is 15 and evan is 10. 
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A game at the state fair has a circular target with a radius of 10.7 cm on a square board measuring 30 cm on a side. Players win
Stells [14]

Answer:

The probability of hitting the circular area = P(H) = favorable area/ total area = Area of the circle / Area of the square

Step-by-step explanation:

= π/9

6 0
3 years ago
What is the range of the function f(x) =4x-1 when the domain is -3 ,0,4 ?
dedylja [7]

Answer:

The range of this function is {-13, -1, 15}.

Step-by-step explanation:

Evaluate f(x) = 4x - 1 at {-3, 0, 4}:

f(-3) = -13

f(0) = -1

f(4) = 15

The range of this function is {-13, -1, 15}.

3 0
3 years ago
Find the area and perimeter. Stuck on this one need help
masya89 [10]

9514 1404 393

Answer:

  • area: 114 square units
  • perimeter: 44 units

Step-by-step explanation:

The figure is a trapezoid with bases 12 and 7, and a height of 12. The area formula is ...

  A = (1/2)(b1 +b2)h

  A = (1/2)(12 +7)(12) = 114 . . . square units area

__

The length of side AB can be found using the distance formula:

  d = √((x2 -x1)^2 +(y2 -y1)^2)

  d = √((6 -(-6))^2 +(1 -6)^2) = √(144 +25) = 13

The sum of the side lengths is then ...

  13 +7 +12 +12 = 44 . . . units perimeter

8 0
2 years ago
Mariam is making two types of paper lanterns. One type of flashlight needs 0.75 square feet of cardboard, while the other needs
HACTEHA [7]

Answer:

Step-by-step explanation:

Mariam is making two types of paper lanterns. One type of flashlight needs 0.75 square feet of cardboard, while the other needs 1.15 square feet. If she made 5 of each type of flashlight, it means that

For the first type flashlight that she made, she used 0.75 × 5 = 3.75 square feet of cardboard.

For the second type of flashlight she made, she used 1.15 × 5 = 5.75 square feet of cardboard.

Total amount of cardboard used is

3.75 + 5.75 = 9.5 square feet

Mariam has 12.75 square feet of paper left over. Assuming the total square feet of cardboard that she used is x, then x = amount of cardboard used + the amount that is left over. It becomes

x = 9.5 + 12.75 = 22.25 square feet

She used 22.25 square feet

8 0
3 years ago
A cone has a diameter of 4 cm and a height that is 6 times the diameter. Using 3.14 for pi, which of the following can be used t
Triss [41]

Answer:

1/3(3.14)2^2(24)

Step-by-step explanation:

The volume of a cone is given by the formula;

1/3πr³

Considering the radius is 2 cm and the height is 24 cm (4 times the diameter).

Therefore;

Volume = 1/2(3.14)2²(24)

            This can be used to calculate the volume.

3 0
3 years ago
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