Page 86 - Algebra 1

Lesson Practice
Simplify each expression.
1.
(11)
2.
(11)
3.
(6)
-_16 ÷ -2 4+7-6
2+7-3 -2+11-4+3-8
a. Is the radicand in √ 22 5 a perfect square? Explain. (Ex 1)
b. Is the radicand in √ 35 0 a perfect square? Explain. (Ex 1)
c. Estimate the value of √ 37 to the nearest integer. Explain your
(Ex 2)
reasoning.
d. Compare the expressions. Use < , > , or =.
(Ex 3)
√ 16 + √ 44 1 √ 81 + √ 36 1
e. The city park has a new sandbox in the shape of a square. The area of
(Ex 4)
the sandbox is 169 square feet. What is the side length of the sandbox? Explain.
Practice
Distributed and Integrated
(-2)(-3) + 11(2) - 3 - 6
Evaluate each expression for the given values.
*5. 3p - 4g - 2x for p = 2, g = -3, and x = 4 (9)
6. 3xy - 2yz for x = 3, y = 4, and z = 3 (9)
*7. √ 40 is between which two whole numbers? (13)
*8. Multiple Choice Which of the following numbers is a perfect square?
(13)
*9. Solve b = √ 4 . (13)
10. Model Draw a model to compare _5 and _1 . (10) 12 3
11. Convert 25 feet per hour to yards per hour. (8)
12. True or False: The square root of any odd number is an irrational number. If false,
(1)
4.
(6)
A 200 B 289 C 410 D 150
provide a counterexample.
Lesson 13 71