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nata0808 [166]
2 years ago
11

To test the effect of day care on academic performance in young children, a researcher plans to use two groups of 5-year-olds fr

om the same kindergarten class: One group is made up of randomly selected children who attended day care, and the other group includes randomly selected children who did not attend any day care prior to attending kindergarten. Both groups will complete a brief test of academic performance during a class. Which type of test should the researcher use to compare the mean scores of the two groups
Mathematics
1 answer:
algol132 years ago
4 0

Answer:

completely Randomized block design

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Find x (round to the nearest tenth)
never [62]

9514 1404 393

Answer:

  x = 8

Step-by-step explanation:

By AA similarity, ΔABD ~ ΔCDE. So, corresponding sides are proportional.

  AB/BD = CD/DE

  x/12 = 4/6

  x = 12(4/6)

  x = 8

5 0
2 years ago
Determine if the sequence below is arithmetic or geometric and determine the
algol13

9514 1404 393

Answer:

  r = 2

Step-by-step explanation:

The first differences between successive terms are ...

  10 -5 = 5

  20 -10 = 10

The differences are not constant, so the sequence is NOT arithmetic.

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The ratios of successive terms are ...

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The ratios are constant, so the sequence is ...

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4 0
2 years ago
I dont get this at all
Neko [114]
Use the internet that is what i would sorry i am in the 10th grade

3 0
3 years ago
How to find irrational numbers between two numbers
Vaselesa [24]

Answer:

If A and B are two rational numbers such that A<B

Then X = A + (B-A)/π would be an example of an irrational number

such that A < X < B

Hope this helps

Please give me brainliest

8 0
3 years ago
Surfside Bike Rental Shop charges a $20 fixed fee plus $5 per hour for renting a bike. Alyssa paid $50 to rent a bike. How many
Leviafan [203]

Answer:

D.

Step-by-step explanation:

You can set up and equation to solve for any cost like so:

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5x is the price for each hour

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c is the total cost

Now let's use the price given to solve:

5x + 20 = 50

Subtract 20 from each side:

5x = 30

Divide each side by 5:

x = 6

5 0
2 years ago
Read 2 more answers
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