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expeople1 [14]
2 years ago
10

( Help Please )

Mathematics
2 answers:
NISA [10]2 years ago
3 0

Answer:

750 yards

Step-by-step explanation:

I entered the area of the field into a Pythagorean Theorem Calculator and it concluded that the diagonal length of the field would be approximately 750 yard.

Zolol [24]2 years ago
3 0

Answer:

300 yd saved

Step-by-step explanation:

The length of the diagonal of the field is found using the Pythagorean Theorem and is

d = √( 450 yd)² + ( 600 yd)² ) = √562500 yd² = 750 yd is the diagonal distance.  If, on the other hand, the farmer walks the length and width of the perimeter of the field, that would be 450 yd + 600 yd, or 1050 yd.

The farmer could spare himself 1050 - 750, or 300 yd, of walking if he crosses the field along a diagonal.

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choli [55]

Answer: 1029

Step-by-step explanation:

3 0
3 years ago
The time needed to complete a final examination in a particular college course is normally distributed with a mean of 77 minutes
Komok [63]

Answer:

a. The probability of completing the exam in one hour or less is 0.0783

b. The probability that student will complete the exam in more than 60 minutes but less than 75 minutes is 0.3555

c. The number of students will be unable to complete the exam in the allotted time is 8

Step-by-step explanation:

a. According to the given we have the following:

The time for completing the final exam in a particular college is distributed normally with mean (μ) is 77 minutes and standard deviation (σ) is 12 minutes

Hence, For X = 60, the Z- scores is obtained as follows:

Z=  X−μ /σ

Z=60−77 /12

Z=−1.4167

Using the standard normal table, the probability P(Z≤−1.4167) is approximately 0.0783.

P(Z≤−1.4167)=0.0783

Therefore, The probability of completing the exam in one hour or less is 0.0783.

b. In this case For X = 75, the Z- scores is obtained as follows:

Z=  X−μ /σ

Z=75−77 /12

Z=−0.1667

Using the standard normal table, the probability P(Z≤−0.1667) is approximately 0.4338.

Therefore, The probability that student will complete the exam in more than 60 minutes but less than 75 minutes is obtained as follows:

P(60<X<75)=P(Z≤−0.1667)−P(Z≤−1.4167)

=0.4338−0.0783

=0.3555

​

Therefore, The probability that student will complete the exam in more than 60 minutes but less than 75 minutes is 0.3555

c. In order to compute  how many students you expect will be unable to complete the exam in the allotted time we have to first compute the Z−score of the critical value (X=90) as follows:

Z=  X−μ /σ

Z=90−77 /12

Z​=1.0833

UsING the standard normal table, the probability P(Z≤1.0833) is approximately 0.8599.

Therefore P(Z>1.0833)=1−P(Z≤1.0833)

=1−0.8599

=0.1401

​

Therefore, The number of students will be unable to complete the exam in the allotted time is= 60×0.1401=8.406

The number of students will be unable to complete the exam in the allotted time is 8

6 0
3 years ago
An unknown number x is at most 30. Which graph best represents all the values of x? (1 point) Group of answer choices Number lin
FromTheMoon [43]

is there any picture?

5 0
2 years ago
How did you get the 600?
Arisa [49]
By adding until there.
4 0
2 years ago
Read 2 more answers
2) Which rectangle if translated 6 units right and 16 units down and the rotated 90° clockwise about the point (4, -11) will res
Veronika [31]

Answer:

the answer should be c

Step-by-step explanation:

5 0
3 years ago
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