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Hoochie [10]
3 years ago
5

A rectangular field is 90 yards wide and 140 yards long. give the length and width of another rectangular field that has the sam

e perimeter but a larger area
Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
3 0
Perimeter of rectangle is 2W + 2L
area of rectangle is WL

perimeter of 90 yards by 140 yards
...90×2 + 140×2 = 180+280 = 460 yards

area of 90 yards by 140 yards
....90×140= 12,600 square yards

Same size perimeter but larger area
100 yards wide by 130 yards long
100×2 + 130×2= 200+260 = 460 yards

area of 100 yards by 130 yards
100×130 = 13,000 square yards
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Macro means large or large-scale. Macroeconomics deal with economies in a larger scale like national, regional, or global market which government is involved with. 
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The radius of a circle is (7x+3)cm. Write an expression to represent the area of the circle in simplified form
zepelin [54]

Answer:

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Step-by-step explanation:

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3 years ago
Tell which number is greater.<br><br> 1/3, 30%
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8 0
3 years ago
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 12. Use the empirical rule t
MissTica

Answer:

A) 99.7% of people have an IQ between 64 and 136.

B) 5% of people have an IQ score less than 76 or greater than 124.

C) 16% of people have an IQ score greater than 112.

Step-by-step explanation:

The Empirical Rule tells us that, in a normal or 'bell-shaped' distribution, 68% of the data is one standard deviation from the mean, 95% of the data is two standard deviations from the mean, and 99.7% of the data is three standard deviations from the mean.

A) 64 and 136 are 3 standard deviations away from the mean, so 99.7% of people have an IQ between 64 and 136.

B) 76 and 124 are 2 standard devations away from the mean, but the answer is asking what percentage is not between them. 100% - 95% gives us 5%.

C) 112 is one standard deviation away from the mean. If we want to find the percentage greater, then we can do 100% - 50% (as 112 is to the left of the mean), then we can take half of 68 to get 34%, and after subtracting 50% and 34% from the 100%, we get 16%.

8 0
3 years ago
A swimming pool in the shape of a rectangular prism is 10 feet long, 20 feet wide, and 5 feet deep. How much water could the swi
sasho [114]

Answer:

1,000 units^3 of water

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20•10•5 =1,000

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3 years ago
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