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Tju [1.3M]
2 years ago
12

Identify which of the following questions

Mathematics
1 answer:
slava [35]2 years ago
5 0

Answer:

a and e I believe

Step-by-step explanation:

this is because to answer those questions you need to survey multiple different people, you'd need more than just an answer if you were to find the average of something. For the other questions they're very direct and only have one answer. Therefore you wouldnt need a statistical process for the other questions and only for a and e.

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The area of this trapezoid is 25.5.<br> What is the height of the trapezoid? Show your work.​
scoundrel [369]

Answer:

22.4

Step-by-step explanation:

3.2 times 7 is 22.4

Hopes this helps

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8 0
2 years ago
Read 2 more answers
A number is multiplied by 5 and the results is twice the number added to 2 find the number<br>​
docker41 [41]

Answer:

5x=2x+2

3x=2

X=2/3

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8 0
3 years ago
Please help me question is in the picture
tekilochka [14]

Answer:

172.70 sq. ft.

Step-by-step explanation:

The surface area of a circular cone is

SA = \pi r^{2} + \pi rl       r = radius of base         l = slant height

r = 4.4    and     l = 8.1

SA = 3.14 (4.4^{2}) + 3.14(4.4)(8.1)\\

SA = 3.14(19.36) + 111.9096

     = 60.7904 + 111.9096

     = 172.70 sq. ft.

8 0
2 years ago
There are 20 20 coins in a jar. Each coin is either a nickel or a quarter. If one of the coins is selected at random, the probab
sveta [45]

Answer: there are 8 quarters in the jar

Step-by-step explanation:

Let x represent the number of nickels that is inside the jar.

The total number of coins inside the jar is 20.

Probability is expressed as

Number of possible or favorable outcomes/total number of outcomes.

The probability of selecting a nickel is 0.6. This is expressed as

0.6 = x/20

Cross multiplying, it becomes

x = 20 × 0.6

x = 12

Since there are 12 nickels inside the jar, then the number of quarters would be

20 - 12 = 8

3 0
3 years ago
How do u factor..<br>x^2 + 10× - 2400 = 0 ​
Lunna [17]

Answer:

{ \bf{ {x}^{2}  + 10x - 2400 = 0}} \\ { \bf{ \red{it \: has \: no \: rational \: factors}}} \\ x =  - 54.2 \:  \: and \:  \: 44.2

3 0
3 years ago
Read 2 more answers
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