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valentinak56 [21]
2 years ago
5

Suppose that the mean GPA (grade point average) for a random sample of all seventh graders at your school is 3.25 and the mean G

PA for a random sample of all eighth graders at your school is 2.85. Explain why this does not tell us that the mean GPA of all seventh graders at your school is different from the mean GPA of all eighth graders at your school.
Mathematics
1 answer:
elena-14-01-66 [18.8K]2 years ago
6 0

Answer:

I don't know how to explain

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The diagram below shows a student using a clinometer to measure the height of a flagpole. When the student stands 40 feet away f
AVprozaik [17]
The correct answer is the flagpole is <span>33 feet high</span>.

Explanation:
Please refer to the attached picture.

We know:
CD = 40 feet
AC = 5 feet
∠BDC = α = 35°

Using trigonometry, we know that the definition of the tangent of an angle is the ratio between the opposite side and the adjacent side, therefore:
tan α = BC / CD

Solving for BC:
BC = CD · <span>tan α
      = 40 </span>· tan (35)
      = 28 feet

In order to find the height of the flagpole, we need to add the distance of the clinometer from the ground:
AB = BC + AC
      = 28 + 5
      = 33

Hence, the flagpole is 33 feet high.

5 0
3 years ago
A punch recipe calls for 1/2 gallon of ginger ale, 1/2 qt of
Blababa [14]

Answer: 14

Step-by-step explanation:

1/2 gallon =2 quarts, so add the 2 quarts and the 1 quart of ginger ale, plus the one pint of lemonade and this makes 14 cups of punch

8 0
3 years ago
City cabs charges a $2.25 pickup fee and $1.25 per mile traveled diego's fare for a cross-town cab ride is $18.50 how far did he
Kruka [31]

Using proportions, it is found that Diego traveled 15 miles in the cross-town cab ride.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, for the miles traveled, Diego paid 18.50 - 2.25 = $16.25. Considering the fee of $1.25 per mile, the distance he traveled is given by:

d = 16.25/1.25 = 15.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

8 0
2 years ago
Identify the transformation at the right.
emmainna [20.7K]

Answer:

what transformation and is there and mulitple choice questions

Step-by-step explanation:

4 0
2 years ago
What’s the answer???
77julia77 [94]

Answer:

"16.67"

Step-by-step explanation:

250÷15=16.67

5 0
3 years ago
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