MATHEMATICS HIGH SCHOOL

Frank has enough paint to cover 500 square inches. He paints a wooden cube that has 9-inch square faces. How much paint does Frank have left?

Answers

Answer 1
Answer:

Answer:

there are 6 square faces in a cube

surface 1 side: 9²=81inch²

1cube surface: 81*6=486inches²

he uses 486inch² of paint for the cube

Amount of paint remaining = 500 square inches - 486 square inches = 14 square inches

Step-by-step explanation:

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If 4x-3=13, then 4x=16
If f(x) = (x + 7)^2, which of the following is g(x) based on the translation?g(x) = (x + 9)^2g(x) = (x + 5)^2g(x) = (x − 9)^2g(x) = (x − 5)^2
What is the equation of the line that passes through the point (3,-2) and has aslope of -2?
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Factor completely: 3x^2 + 12x + 7

Answers

Answer:

6x+12

Step-by-step explanation:

Simplify
-2(3x - 4y) +
5(x+3y)

Answers

Answer:

- x + 23y

Step-by-step explanation:

- 2(3x - 4y) + 5(x + 3y) \n - 6x + 8y + 5x + 15y \n - 6x + 5x - 8y + 23y \n = - x + 7y

Answer:

-x + 23y

Step-by-step explanation:

-2(3x - 4y) + 5(x+3y)

Expand the brackets.

-6x + 8y + 5x + 15y

Rearrange.

- 6x + 5x +8y + 15y

Add or subtract like terms.

- 1x + 23y

PLEASE HURRY!Choose all the points that are located on quadrant lV.
Choices:
(-3,-1/4). (6,-9). (-5,3). (2,-4). (-11,5). (7,1/4)
Sorry about the picture it’s not very clear:/

Answers

(6,-9), (2,-4). Quadrant 4 locations are a positive number than a negative number.

A rectangular yard has area 96 square feet. If the width of the yard is 4 ft less than length, what is the perimeter,in feet, of the yard?

Answers

Area of the rectangular yard = 96 square feet
Let us assume the length of the yard = x feet
Width of the yard = x - 4 feet
Then
Area of the yard = length * width
96 = x(x - 4)
96 = x^2 - 4x
x^2 - 4x - 96 = 0
x^2 - 12x + 8x - 96 = 0
x(x - 12) +8(x - 12) = 0
(x - 12)(x + 8) = 0
As the value of length cannot be negative so
x - 12 = 0
x = 12
So
Length of the yard = 12 feet
Width of the yard = x - 4 feet
                             = 12 - 4 feet
                             = 8 feet
Then
Perimeter of the yard = 2 (length + width)
                                   = 2(12 + 8)
                                   = 2 * 20 feet
                                   = 40 feet.
So the perimeter of the yard  is 40 feet.

! If 18 in is is equal to 1 1/2 feet how many feet is a 72 in board

Answers

Answer:6 feet

Step-by-step explanation:

72 divided by 12 = 6

What does the word pythagorean mean?

Answers

The Pythagorean Theorem is the mathematical concept that states a² + b² = c², where a and b are the sides of a right triangle and c is the hypotenuse.  It was created by the Greek philosopher and mathematician Pythagoras.
Definition of PYTHAGOREAN. : of, relating to, or associated with the Greek philosopher Pythagoras, his philosophy, or the Pythagoreans. (from my book dictionary)
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