teja7ckwithbrengton teja7ckwithbrengton
  • 03-01-2016
  • Mathematics
contestada

When 9x2 - 100 is factored, it is equivalent to (3x - b)(3x + b).
What is a value for b?
(1) 50 (3) 3
(2) 10 (4) 100

Respuesta :

Imabeatsgirl Imabeatsgirl
  • 03-01-2016
(9 x 2 = 18) (18-100=-82) So you have to be able to multiply 3x - b and 3x + b to get -82. I believe the answer is (2).10
Answer Link

Otras preguntas

solve for x then solve for the angle indicated- m
the sound intensity level 5.0 m from a large power saw is 100 db. part a at what distance will the sound be a more tolerable 80 db?
how do you calculate the mean annual change​
solve a/4 is less than 12
Why does Esperanza want to stay at school for lunch?
(d) Rekha has 1500 shares of a private bank among 100000 shares. At the end of a year, the management committee is divided to distribute 18% cash dividend among
what is polorisation?
Sangita has deposited rs 1,00,000 in a commercial bank for 2 years at the rate of rs 5 interest per annum for rs 100. The ages of her elder daughter and younger
He drove the car carefully. (underline the adverb)
21 2f=9f what does f equal