KNOW Choose the letter of your answer. If your answer is not among the choices write
1. What is the GCF of 2x2 - 4x - 6x2 = 2x(x - 2 – 3x?)?
a) 2x b)(x - 2 - 3x2)
2. Which of the following is equivalent to 18x + 12y?
c)-4x
d)2x(x-2-3x)
a) 4(5x + 3y)b)2(95 + 8y) c)3(6x +5y) 46(3x + 2y)
3. Which of the following is equivalent to the equation x +5 = (x + 3)??
a)(x + 1)(x + 4) = 0 b)(x - 1)(x + 4) = 0 c)(x + 1)(x + 4) = 5 d)(x + 1)(x + 4) = 3
4. Which of the following is a quadratic expression with a > 1?
a)x2 + 3x - 5 b) - 32 - 2x - 1 c)3x2--2 d) 5x2 + 25
5. Which of the following is a quadratic expression where a =1?
a) 4x2 - 7x-8 b) x2 - 5x – 280
d) 9x? + x - 10
6. Factor x3 -8.
d)(3x - 5)(x + 1)
a)(x + 2)(x2 - 2x + 4) b)(x - 2)(x2 + 2x + 4)c)(x - 5)(3x + 1)
7. Factor x3 + 27 completely.
a)(x + 3)(x2 - 3x + 9) b)(x+3)(x2 – 3x + 18)
c) 4x2 - 9
c)(x + 3)(x2 – 3x - 9)d)(x + 5)(x-3)
8. Which of the following is a quadratic expression with a=1?

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

Which of the following could be the ratio of the length of the longer leg 30-60-90 triangle to the length of its hypotenuse? check all that apply. a. 313 6 b. 3: 215 c. 18: 13 d. 1: 13 e. 13: 2 of. 3: 15

Apoll is being conducted at a mall nothingto obtain a sample of the population of an entire country. what is the frame for this type of​ sampling? who would be excluded from the survey and how might this affect the results of the​ survey? what is the frame for this type of​ sampling? a. the frame is people who need new clothes. b. the frame is people who shop at the mall. c. the frame is people who like to shop. d. the frame is the entire population of the country. who would be excluded from the survey and how might this affect the results of the​ survey? a. any person that does not need new clothes is excluded. this could result in sampling bias due to undercoverage. b. any person who does not shop at the mall is excluded. this could result in sampling bias due to undercoverage. c. any person who does not shop at the mall is excluded. this could result in nonresponse bias due to people not participating in the poll. d. there is nobody that is being excluded from the survey.