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hjlf
2 years ago
11

rashid can paint 2 square feet of fence in 10 minutes how long will it take him to paint a fence 6 feet high by 25 feet long

Mathematics
2 answers:
Stells [14]2 years ago
7 0
The area of the fence is 6*25=150 square feet.
It will take him 150 / 2 = 75 of 10-minute intervals. 75 min *10 = 750 min = 750/60 hours = 12.5 hours.
Arisa [49]2 years ago
4 0
Ratio and proportion                  fence area= 6 x 25= 150 sq ft
2 ft/ 10 min= 150 sq ft/ x min
2 x=1500
     x= 750 min
convert to hours divide by 60

  x= 12.5 hours

hope this helps
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PLEASE ANSWER ASAP
NemiM [27]

The height of the softball when it travels 12 feet using the quadratic regression model is 5.53 foot.

<h3>What is the correlation coefficient?</h3>

Correlation coefficient is used to calculate how strong the relationship is between the two variables.

When there is a statistical relationship between two or more variables, then they are said to be in correlation.

The table represents the distance and height for softball travels after being hit by the batter.

  •           Distance x (ft)              Height y (ft)
  •               0                                  5
  •               2                                  25
  •               4                                  37
  •               6                                  42
  •               8                                  34
  •              10                                  26
  • Mean     5                                   28.167    

The mean of the data of distance is 5 and the mean of the data of height is 28.167. The correlation coefficient is 0.9938.

The quadratic regression model for this model is given as,

y=5.29+11.78x-0.98x^2

At the 12 feet, the value of height y is,

y=5.29+11.78(12)-0.98(12)^2\\y=5.53

Hence, the height of the softball when it travels 12 feet using the quadratic regression model is 5.53 foot.

Learn more about the correlation coefficient here;

brainly.com/question/4219149

#SPJ1

3 0
1 year ago
Which fractions have a LCD of 84? A. 3/4, 1/7, 1/6 B. 2/3, 1/6, 1/42 C. 2/27, 1/7, 1/3 D. 2/3, 1/6, 1/7
ExtremeBDS [4]

Answer:

A. \frac{3}{4} , \frac{1}{7} , \frac{1}{6}

Step-by-step explanation:

4 × 16 = 84

7 × 12 = 84

6 x 14 = 84

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5 0
2 years ago
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Mrrafil [7]

Answer:

Infinite number of solutions

Step-by-step explanation:

2(3 + 4x) = 8x + 6\\6 + 8x = 8x+6\\8x-8x=6-6\\0=0

For any value of x, both equations are equal to each other because both sides are identical

4 0
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Stacy uses 6 cups of sugar to make 120 brownies how many cups of sugar will she use to make 360 brownies?
oksian1 [2.3K]

Answer:

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Step-by-step explanation:

Step 1:

120 ÷  6 = 20

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360 ÷ 20

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18

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