The area is basically the size of a surface of an object in simple words
Let x be the score of the 3rd quiz,, then the average score will be:
(83+91+x)/3, which = (174+x)/3. but this average should be greater or equal to 85 and smaller or equal to 90:
85 ≤ (174+x)/3 ≤ 90
1st multiply all terms with 3 → 255 ≤(174+x) ≤ 270
2nd subtract 173 from all terms → 255-174 ≤174-174+x ≤270-174
81 ≤ x ≤ 96
Answer:
A, C and E
Step-by-step explanation:
A. 2.7 > 2.10
C. 6.64 > 6.2
E. 7.4 = 7.40
Thus, The three comparisons that are true is A, C and E
<u>-TheUnknownScientist</u>
Answer: 17 miles per hour.
Step-by-step explanation:
1. To solve this problem you must apply the following formula:
=Δx/Δt
Where Δx is the position variation and Δt is the time variation.
2. Then, based on the graph shown attached, you have:
![S=\frac{20mi+20mi+30mi+15mi}{1h+1h+1h+2h}](https://tex.z-dn.net/?f=S%3D%5Cfrac%7B20mi%2B20mi%2B30mi%2B15mi%7D%7B1h%2B1h%2B1h%2B2h%7D)
3. Therefore, you have that the result is:
![S=17mi/h](https://tex.z-dn.net/?f=S%3D17mi%2Fh)