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slega [8]
3 years ago
15

Please help me before the bots do thank you!!!

Mathematics
1 answer:
rusak2 [61]3 years ago
8 0

Answer:

517.5 mi^2

Step-by-step explanation:

Divide shapes into 3 shapes ( 1 triangle and 2 rectangles

b = 17

h = 25

Area of triangle = \frac{1}{2} Bh

A = \frac{1}{2} (17)(25)

A = 212.5 mi^2

Area of 1st rectangle = lw = 17(9) = 153 mi^2

Area of 2nd rectangle = lw = 19(8) = 152 mi^2

Area of figure = 212.5 +153 + 152 = 517.5 mi^2

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Elenna [48]

Answer:

75= 119 -1.96 \sigma

\sigma = \frac{75-119}{-1.96}= 22.45

And tha's equivalent to use this formula:

163= 119 +1.96 \sigma

\sigma = \frac{163-119}{1.96}= 22.45

Step-by-step explanation:

For this case the 95%of the values are between the following two values:

(75 , 163)

And for this case we know that the variable of interest X "length of a movie" follows a normal distribution:

X \sim N( \mu, \sigma)

We can estimate the true mean with the following formula:

\mu = \frac{75+163}{2}= 119

Now we know that in the normal standard distribution we know that we have 95% of the values between 1.96 deviations from the mean. We can find the value of the deviation with this formula:

75= 119 -1.96 \sigma

\sigma = \frac{75-119}{-1.96}= 22.45

And tha's equivalent to use this formula:

163= 119 +1.96 \sigma

\sigma = \frac{163-119}{1.96}= 22.45

4 0
3 years ago
Miles had a piece of paper 1/4 of a large circle cut in three equal parts from the center point of the circle. What angle is the
telo118 [61]
The angle of 1/4 of a circle is given by:
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6 0
3 years ago
#5 please help me thank you.
saul85 [17]
Area = length * width
Area = (n yds + 40 yds)  * 30 yds

or
Area = (30 yds * n yards) + (30 yds * 40 yards)
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8 0
3 years ago
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LenaWriter [7]

Answer:



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Next, we need to turn the 2 into a fraction. Every whole number can be made into a fraction by putting it over 1.

\frac{2}{3} / \frac{2}{1}

Because we are dividing, we need to invert the second fraction and then multiply.

\frac{2}{3} * \frac {1}{2}

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\frac{2}{6}

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4 0
3 years ago
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Anton [14]

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Step-by-step explanation:

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3 years ago
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