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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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Frankie wants to build a path from one corner of his yard to the opposite corner. His yard measures 20 ft. x 32 ft. What will be
Roman55 [17]

Answer:

≈37.7 feet

Step-by-step explanation:

I'm assuming he goes diagonally.

We can form a triangle with legs 20 feet and 32 feet.

Using the Pythagorean Theorem, we get:

20^2+32^2=c^2\\400+1024=c^2\\1424=c^2\\c^2=1424\\c=\sqrt{1424}\\

c≈37.7

8 0
3 years ago
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If a household appliance has a wattage of 7,043 and is in use for 9 hours, how much CO2 was produced? Round to 1 decimal.
fgiga [73]

Answer: = 62.8 pounds of CO₂

Step-by-step explanation:

1 kilowatt per hour produces 0.99 pounds of C02.

The total wattage in hours used was;

= 7,043 * 9 hours

= ‭63,387‬ watts

In kilowatts;

= ‭63,387‬/1000

= 63.387 kilowatts

CO2 produced;

= 63.387 * 0.99

= ‭62.75313‬

= 62.8 pounds of CO2

5 0
3 years ago
One pound of grapes costs $1.55. Which equation correctly shows a pair of equivalent ratios that can be used to find the cost of
Sophie [7]
$5.53 dollars for 3.5lb. of grapes.
8 0
4 years ago
What is the interquatile of 4,5,7,9,10,14,16,24
forsale [732]

Answer:11

Step-by-step explanation:

The IQR Is when the data is split into three categories, Q1, M, Q3. IQR is the middle number of Q1 and Q3. I have provided the calculations.

3 0
3 years ago
If 3x + 2y = 5, what is the value of the expression 6x + 4y - 7?
pickupchik [31]

Answer:

3

Step-by-step explanation:

x = 1

y = 1

6+4-7 = 3

6 0
3 years ago
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