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2 years ago

10

Suppose that scores on an exam are normally distributed with mean 80 and standard deviation 5, and that scores are not rounded.

What is the probability that a student scores higher than 85 on the exam

1 answer:

AfilCa [17]2 years ago

7 0

Answer:

3

Step-by-step explanation:

cus it's two 80s and 2 5 so 5 minus 2 is 3

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a side of an equilateral triangle is 2/8cm long. Draw a picture that's shows the triangle. What is the perimeter of the triangle

Tom [10]

If the triangle is equilateral it means all the sides are the same length.

A triangle has three sides. if each side is 2/8cm then the total perimeter if 3*2/8 = 6/8 = 3/4

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2 years ago

Continue the following pattern; describe the eighth figure in this pattern a. 49 small squares forming a larger 8 by 8 square b.

olga2289 [7]

Answer:

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Step-by-step explanation:

The eighth patern should give the result 81

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3 years ago

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2 years ago

Camilo estimates the weight of the dog . The veterinarian says that the dog weighs 84 pounds . The percent error in Camillo's es

blsea [12.9K]

Answer:

The estimated weight is in the range:

75.6 pounds $\leq$ Weight $\leq$ 92.4 pounds

Step-by-step explanation:

Since, the maximum error is 10%.

Therefore, the maximum and minimum vales will be 10% more and 10% less than 84 pounds, respectively.

<u>For Maximum Limit</u>:

$Weight_{max}$ = (1.1)(84 pounds)

$Weight_{max}$ = <u>92.4 pounds</u>

<u>For Minimum Limit</u>:

$Weight_{min}$ = (0.9)(84 pounds)

$Weight_{min}$ = <u>75.6 pounds</u>

Hence, the estimated weight is in the range:

75.6 pounds $\leq$ Weight $\leq$ 92.4 pounds

5 0

2 years ago

Factor:<br> 4x^2+4xy−288y^2

Sonja [21]

$4x^2+4xy-288y^2=\\
4(x^2+xy-72y)=\\
4(x^2+9xy-8xy-72y)=\\
4(x(x+9y)-8y(x+9y))=\\
4(x-8y)(x+9y)$

7 0

2 years ago