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melisa1 [442]
3 years ago
11

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

e perimeter but a smaller area.
Mathematics
1 answer:
Galina-37 [17]3 years ago
6 0
140 by 90 = 460 perimeter  = 12,600 area

150 by 80 = 460 perimeter = 12,000 area
 

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The confidence interval based on the two-sample design is wider because there is considerable variation in mileage between the c
vovikov84 [41]

Answer:

The confidence interval based on the paired design is wider because there is little variation in mileage between the cars.

Step-by-step explanation:

The sample size randomly collected is matched sample and since the confidence interval is based on the paired design is large and wide. There is small variation between the mileage of the two cars indicating the cars have mileage based on the fuel.

5 0
3 years ago
There are 92 students in a chemistry class. The instructor must choose two students at random. Students in a Chemistry Class Aca
Sergio039 [100]

Answer:

0.0108 = 1.08% probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Probability that a sophomore non-Chemistry major

Out of 92 students, 9 are non-chemistry major sophomores. So

P(A) = \frac{9}{92}

Then a junior non-Chemistry major are chosen at random.

Now, there are 91 students(1 has been chosen), of which 10 are non-chemistry major juniors. So

P(B) = \frac{10}{91}

What is the probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random

P = P(A)*P(B) = \frac{9}{92}*\frac{10}{91} = \frac{9*10}{92*91} = 0.0108

0.0108 = 1.08% probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random.

8 0
3 years ago
please help :( please help :( please help :( please help :( please help :( please help :( please help :( ​
bixtya [17]

Answer:

1. 3*8*10=240

2.6*6*12=432

Step-by-step explanation:

Hope that helps

Use l*w*h

4 0
3 years ago
Few flat parts have a rectangular prism
postnew [5]
Rectangle prisms have 6 flat surfaces.
6 0
3 years ago
the difference of two numbers is 16. The greater number is 5 less than 4 times the smaller number find the numbers
inna [77]
L-s=16
4s-5=l
4s-l=5
3s=21
s=7
l-7=16
l=16+7
l=23
The smaller number is 7 and the greater number is 23
5 0
3 years ago
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