Answer:
40 + 24 = 8(5 + 3)
Step-by-step explanation:
Consider the expression 40 + 24. Find the greatest common factor of the two numbers, and rewrite the expression using distributive property
Step 1
We find the GCF
The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24
The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
Then the greatest common factor is 8.
Step 2
Rewriting the expression using distributive property.
The factors of 40 and 24 that would give us the sum of 8 is given as 5 and 3
Therefore, using Distributive property
40 + 24 = 8(5 + 3)
A= 50.27 because the formula is pi times radius squared
C= 24.13 because the formula is 2 times pi times radius
Three students want to estimate the mean backpack weight of their schoolmates. To do this, they each randomly chose 8 schoolmates and weighed their backpacks. Then as per the given sample data,
(a) The sample means of the backpacks are: 6.375,6.375,6.625
(b) Range of sample means: 0.25
(c)The true statement is: The closer the range of the sample means is to 0, the less confident they can be in their estimate.
For the first sample, mean= 6.375
For the second sample, mean= 6.375
For the third sample, mean= 6.625
Range of sample means=Maximum Mean- Minimum Mean
= 6.625 - 6.375
= 0.25
The students will estimate the average backpack weight of their classmates using sample means, the true statement is:
The closer the range of the sample means is to 0, the more confident they can be in their estimate.
Learn more about range here:
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250cm^2
To find the area of shape B we need to find the factor by which you multiply to get from 12 to 15. To find this we divide 15 by 12 to get 1.25. We now multiply the area of shape A (200) by the factor 1.25 to get the answer. The answer is 250cm^2.
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Correct :)
36 is not divisible by 8.
The prime factorization of 36 is 2*2*3*3
To get 8 we need 2*2*2 but we don't have enough 2's.
