Day 12 Solve Using Square Roots – HOMEWORK
On All Problems – Round to the nearest hundredth (when necessary)
1. Evaluate:
a.
0
b.
2. With your calculator:
a.
81
21 = _____________
b.
169
b.
109 = _____________
5.
x2 = 10
(round to the nearest hundredth)
3.
x2 = 25
4.
x2 = 121
4. 3x2 = 27
5. 2x2 – 32 = 0
6. 2m2 – 42 = 8
7. 7a2 + 8 = 3
8. 25b2 + 11 = 15
9. 13b2 + 10 = 26
10.
11. 2a2 – 9 = 11
4 – x2 = -17
12. You have a square coffee table in your family room that has an area of 196 inches. What is the length of one
side of the coffee table?
13. You have a square flower garden that has an area of 400 square yards. What is the length of one side of the
garden?
14. FALLING OBJECT: Fenway Park is a Major League Baseball park in Boston, Massachusetts. The park offers
seats on top of the left field wall. A person sitting in one of these seats accidently drops his sunglasses on the field.
The height h (in feet) of the sunglasses can be modeled by the function h = -16t2 + 38 where t is the time (in
seconds) since the sunglasses were dropped. Find the time it takes for the sunglasses to reach the field. Round
your answer to the nearest hundredth of a second.
In Need of a Challenge? Try this: