Answer:
1.B 2.B 3.A
Step-by-step explanation:
1.(70-24)/2 = 23
2. 295 x 8.95 =2640.25 - 400 = 2240.25 ~ $2000
3. 21hoursx48 weeks x 2years = 2016 hours ~ 2000
Theres 100 pennies. each group she adds has 10 pennies. 10 times 5 is 50. 150 would be the new number of pennies in the jar.
<h3>Answer:</h3>
<u>Volume of hemisphere = 2/3πr³</u>
- 2/3 × 3.14 × 3.1³
- 187.08/3
- 62.36 or 62.4 rounded.
Answer:
In the graph, we have a linear fit of the student's grades as a function of the number of hours they say that they study.
Then the y-axis represents the grade, and the x-axis represents the number of hours of study, and because this is a linear fit, we will have something like:
y = a*x +b
If we input a value of x here (number of hours studied) we would get the expected grade for the weekly quiz y.
In this situation, the meaning of the x-value on the line when y = 75 would be the (adjusted) number of hours studied to get a grade of 75.
So this x-value is the average number of hours that a student needs to study to get a grade of 75 points.