3 years ago

Jamelia estimates the square root of 72 in the following way:

1 answer:

8 0

Part a)
we have that
√72
√72-----> √(2*36)=√2*√36 is not 2*√36------> this is the error
√2*√36=√2*√6²-----> √2*(6)----> 6√2

alternative method
72 is equal to-------> 2³*3²
therefore
√72-----> √[2³*3²]----->√ 2³*√3²-------> (2√2)*(3)-----> 6√2

Part b)Estimate the square root of 72 to the nearest tenth

we know that
√2 is equal to 1.41
so
√72=6√2------> 6*1.41-----> 8.46----> 8.5

the answer Part b) is 8.5

You might be interested in

What division problem can be represented using the number line?

inna [77]

A. (10/3) / (5/3)
I got it right :)

3 0

3 years ago

Anna has 24 apples and 27 bananas. How many does she have all together?

aalyn [17]

She has 51 all together

3 0

2 years ago

Congratulations you received a score of 3.4 on your annual review . Merit increases are given out starting at .5% at a score of

defon

Using the formula above, your merit increase will be 2.5%. You received a score of 3.4 on your annual review. Since the merit increase model is 0.5% salary increase at a score of 2.6, with an additional 1% for every .4 points above that baseline, you get 2.5%, which is the baseline of 0.5% + 2% for the 0.8 points you scored above that baseline.

6 0

3 years ago

Paul has 41 cups of water. Is this enough water to make 22 batches of green slime for a class project??

Illusion [34]

25375...................

6 0

3 years ago

Leila and Jo are two of the partners in a business. Leila makes $ 3 in profits for every $4 that Jo makes. If their total profit

Butoxors [25]

3:4....added = 7

3/7(105) = 315/7 = 45...Leila's profit
4/7(105) = 420/7 = 60...Jo's profit

6 0

3 years ago