Answer:
11 3/4 miles.
Step-by-step explanation:
Converting to improper fractions, the consecutive distances are:
21/4 , 55/8, 17/2
= 42/8, 55/8, 68/8 for Monday, Tuesday and Wednesday.
So the distances have increased by 13/8 miles each day.
Thus number of miles he'll bike on Friday = 68/8 + 2(13/8)
= 94/8
= 11 3/4 miles.
Answer as a fraction = 220/9
Answer in decimal form = 24.44 approximately
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Explanation:
The linear scale factor is k = 2/3.
The area scale factor is k^2 = (2/3)^2 = 4/9
We'll multiply the old area (55) by the area scale factor (4/9) to get the area of the smaller image.
55*(4/9) = 220/9 = 24.44 approximately
Answer:
Only Annabelle is correct.
Step-by-step explanation:
So we have the expression:
When multiplying exponents with the same base, we can use the following property:
Essentially, we add the exponents together.
So, first group them:
Use the property:
And so our answer is:
So, Annabelle's answer is correct.
Navene incorrectly used the property. The property adds the exponents, it doesn't multiply them.
So, only Annabelle is correct.
And that's our answer :)
P.S. Congratulations on finishing!