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Andrei [34K]
3 years ago
11

Annabelle wanted to find out how many people in her neighborhood were going to the rock concert over the weekend. She asked a co

uple of her immediate neighbors. On the basis of the answers she got, she drew her conclusion. What kind of statistical investigation did Annabelle perform? survey
Mathematics
1 answer:
slavikrds [6]3 years ago
7 0

Answer:

A.  survey

Step-by-step explanation:


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On weekday mornings, it takes Leo 12 minutes to bike 2 miles to his school. This Saturday, Leo will bike to the park to meet his
marshall27 [118]

Answer:

30 minutes to the park

Step-by-step explanation:

12/2 = 6 min per mile

6 x 5 = 30 mins for 5 miles

7 0
3 years ago
The sum of three consecutive even numbers is one hundred sixty-two. What is the smallest of the three numbers?
zepelin [54]
Since the numbers are consecutive, they must be near each other in size, and therefore near one-third of 168. And since the lower number is -2 off the middle, and the upper number is +2 from the middle, the middle number must be exactly one-third of 168—otherwise the sum of the three could never be 168. Labelling the three consecutive numbers as x, y, and z:

x + y + z = 168

(y-2) + y + (y+2) = 168.

3y = 168

y = 56

therefore the smallest number (x) = 54.
436 viewsView upvotes

1




Related Questions (More Answers Below)
3 0
2 years ago
Read 2 more answers
I have no idea how to do this. I found the answer but now I have to explain it.
Sophie [7]

Answer:

You have 3 + 2 + 2 which is the same as 7 on the other side.

Step-by-step explanation:

3 + 2 + 2 is 7

8 0
3 years ago
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Brainliest answer guaranteed <br> URGENT
UNO [17]

Answer:

y=-6.6 and y=10.6

Step-by-step explanation:

The given ellipse has equation:

\frac{(y-2)^2}{64}+\frac{x^2}{9}=1.

The center of this ellipse is (h,k)=(0,2)

We use the equation: a^2-b^2=c^2 to determine the foci.

\implies 64-9=c^2

\implies 55=c^2

\implies c=\pm \sqrt{55}

The directrices are given by y=k\pm\frac{a^2}{c}

y=2\pm\frac{64}{\sqrt{55}}

y=2\pm8.6

y=2-8.6 and y=2+8.6

The equation of the directrices are:

y=-6.6 and y=10.6

The correct answer is D

7 0
3 years ago
The length of a rectangle is 30 meters. This is 6 meters more than three times the width.
fenix001 [56]
Width is 8
8 times 3 is 24
24+6=30
4 0
3 years ago
Read 2 more answers
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