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gtnhenbr [62]
2 years ago
15

Math is a joke, help plz

Mathematics
2 answers:
gtnhenbr [62]2 years ago
8 0

Answer:

Each piece would be 1.8 yards, or in fraction form, 1 \frac{4}{5}.

Step-by-step explanation:

Just turn 14 2/5 into a decimal, which is 14.4. Then, divide it by 8 using a calculator, and 14.4/8 equals 1.8. In fraction form, this is 1 \frac{4}{5}.

Hope this helps! Feel free to give me Brainliest if you feel this helped. Have a good day and good luck with your assignment. :)

guajiro [1.7K]2 years ago
4 0

Answer:

1.8

Step-by-step explanation:

First, to make this easier, let's turn the fraction to a whole number

14\frac{2}{5} = 14.4

If we want to cut it into 8 equal pieces, let's divide this number by 8

14.4 ÷ 8 = 1.8

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The national average sat score (for verbal and math) is 1028. if we assume a normal distribution with standard deviation 92, wha
elena55 [62]

Let X be the national sat score. X follows normal distribution with mean μ =1028, standard deviation σ = 92

The 90th percentile score is nothing but the x value for which area below x is 90%.

To find 90th percentile we will find find z score such that probability below z is 0.9

P(Z <z) = 0.9

Using excel function to find z score corresponding to probability 0.9 is

z = NORM.S.INV(0.9) = 1.28

z =1.28

Now convert z score into x value using the formula

x = z *σ + μ

x = 1.28 * 92 + 1028

x = 1145.76

The 90th percentile score value is 1145.76

The probability that randomly selected score exceeds 1200 is

P(X > 1200)

Z score corresponding to x=1200 is

z = \frac{x - mean}{standard deviation}

z = \frac{1200-1028}{92}

z = 1.8695 ~ 1.87

P(Z > 1.87 ) = 1 - P(Z < 1.87)

Using z-score table to find probability z < 1.87

P(Z < 1.87) = 0.9693

P(Z > 1.87) = 1 - 0.9693

P(Z > 1.87) = 0.0307

The probability that a randomly selected score exceeds 1200 is 0.0307

5 0
3 years ago
What is the area of this trapezoid?
son4ous [18]
Its C)126in I think because top base is 16, bottom base is 12 and the height is 9. 

5 0
3 years ago
Anyone know any equivelant expressions to 2(4x−3)+3x−1?
Westkost [7]
Sure, each of the following lines.
8x-6+3x-1
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and, 11x-7
8 0
2 years ago
Read 2 more answers
The sum of two numbers is equal to 63, and their difference is equal to 12. Find the numbers ​
Ainat [17]

Answer:

25.5   and   37.5

Step-by-step explanation:

x+y=63

x-y = 12    then   x = 12 + y      sub this into the first equation

(12+y)    + y = 63

12 + 2y = 63

2y = 51

y = 25.5     then x = 37.5

6 0
2 years ago
Sonji has $5.25 in nickels and dimes. The coin value can be modeled by the equation 0.100 +0.05n=5.25, where d represents
rewona [7]

Answer:

c.63

will be your answer

Step-by-step explanation:

7 0
3 years ago
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