What is the area of a square with a perimeter of 64 mm

Answers

Answer 1
Answer:

Answer:

A =256 mm^2

Step-by-step explanation:

The perimeter of a square is given by the formula

P = 4s where s is the length of a side

64 = 4s

Divide each side by 4

64/4 =4s/4

16 = s

To find the area of a square, use the formula

A =s^2

A = 16^2

A =256 mm^2


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Frank's Football Gear is having a sale on helmets. The sales price, not including tax is $125.50. If the sale is 30% off all helmets, what is the regular price of the helmet to the nearest cent?

Answers

The regular price for the football helmet would be $179.29.

Match each set of points with the slope of the line formed by the ordered pairs.

Answers

1) The slope of the point (0,0) and (2,1) is 1/2.

2) The slope of the point (0,-1) and (2,-5) is -2.

3) The slope of the point (0,7) and (2,4) is -3/2.

4) The points (-1,3) and (-1,-3) has No slope.

5) The slope of the point (1,-3) and (-1,-3) is zero.

Step-by-step explanation:

There are five set of points given in the question.

You need to find out the slope of the line formed by the points.

The formula used to find the slope of a line is given by,

Slope = (y2-y1)/(x2-x1)

1) The given points are (0,0) and (2,1)

(x1,y1) ⇒ (0,0)

(x2,y2) ⇒ (2,1)

Slope = (1-0)/(2-0)

1/2 is the slope.

2) The given points are (0,-1) and (2,-5)

(x1,y1) ⇒ (0,-1)

(x2,y2) ⇒ (2,-5)

Slope = (-5+1)/(2-0)

(-4)/(2)

-2 is the slope.

3) The given points are (0,7) and (2,4)

(x1,y1) ⇒ (0,7)

(x2,y2) ⇒ (2,4)

Slope = (4-7)/(2-0)

-3/2 is the slope.

4) The given points are (-1,3) and (-1,-3)

(x1,y1) ⇒ (-1,3)

(x2,y2) ⇒ (-1,-3)

Slope = (-3-3)/(-1+1)

⇒ -6/0 (No slope)

If the denominator of a fraction is zero, the expression is not a legal fraction because it's overall value is undefined.

∴ There is no slope.

5) The given points are (1,-3) and (-1,-3)

(x1,y1) ⇒ (1,-3)

(x2,y2) ⇒ (-1,-3)

Slope = (-3+3)/(-1-1)

⇒ 0/-2

∴ The slope is zero.

1) The slope of the point (0,0) and (2,1) is 1/2.

2) The slope of the point (0,-1) and (2,-5) is -2.

3) The slope of the point (0,7) and (2,4) is -3/2.

4) The points (-1,3) and (-1,-3) has No slope.

5) The slope of the point (1,-3) and (-1,-3) is zero.

The slope of a line represents the rate at which the line rises or falls as you move horizontally along it. It's calculated as the change in the y-coordinate divided by the change in the x-coordinate between two points on the line.

1. (0, 0) and (2, 1):

  Slope = (1 - 0) / (2 - 0) = 1 / 2 = 0.5

  The slope is positive, indicating a rising line.

2. (0, -1) and (2, -5):

  Slope = (-5 - (-1)) / (2 - 0) = -4 / 2 = -2

  The slope is negative, indicating a falling line.

3. (0, 7) and (2, 4):

  Slope = (4 - 7) / (2 - 0) = -3 / 2

  The slope is negative, indicating a falling line.

4. (-1, 3) and (-1, -3):

  Slope = (-3 - 3) / (-1 - (-1)) = -6 / 0

  The denominator is zero, indicating a vertical line. Vertical lines have undefined slopes.

5. (1, -3) and (-1, -3):

  Slope = (-3 - (-3)) / (-1 - 1) = 0 / -2 = 0

  The slope is zero, indicating a horizontal line.

Learn more about slope here

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Wendy's brother drank 3/10 of the gallon of milk in the fridge. What percent of the milk did he drink?

Answers

a percent is part 100
3/10= 30/100
answer is 30%
(3)/(10)\cdot100\%=\n\n(300)/(10)\%=\n\n30\%\n\nWendy's\ brother\ drank\ 30\%\ of\ milk.

Multiply using mental math 20×72×5

Answers

20 x 5 = 100  and 100 x 72 = 7200

What are the answers for 10-11...please show answer and need the answer asap..thank you

Answers

Dear Rosabella09: For 9- Two possible dimensions are 8x15 and 10x20.
For 10- 16(8+18)1/2=208 208-(16x8/2)=208-64=  [144 squared feet]

Sue reads 40 pages in 80 minutes. How long will it take her to read 210 pages

Answers

Set up a ratio 40 pages / 80 minutes 
This can be reduced to 1 page in 2 minutes.
210 pages will take 410 minutes.