SBAC 1

Write in exponential form

∜(3x)³

• 3x^{³⁄ ⁴}

• (3x)^{³∕ ⁴}

• (3x)^{⁴⁄ ³}

• 3x^{⁴⁄ ³}

• 4/3x³

Simplify:

• 
• 
• 
• 
• 

Simplify : (2x²)^-4

• 16x⁸

• 1

  ---

  16x⁸

• 1

  -----

  2x⁸

• 1

  ----

  8x⁸

• -16x^-8

Which of the expressions when simplified that create rational numbers?

• 1/4 +1/2

• π/2

• 2√3

• ∛25+4

• π/π

In the following expression, the number 5 is an example of _____________?

-7x + 5x³ + 11

• term

• constant

• leading coefficient

• variable

• factor

Tags

CCSS.6.EE.A.2B

Simple interests formula is P(1+r)^t, P=Principal (the starting amount), r=interest rate, and t=time. If you as an investor were able to double any of the values in the expression, which would be the best choice over a long term loan?

• Principal would allow double the starting amount of money so you are going to make more money in the long term

• Rate would double the amount of interest you were making every year so this would create the most money in the long run

• Time is an exponent so it is mathematically the most powerful value, so as time doubles the exponent will create the most money

• The exponent of time is related to the rate; though time is an exponent in increases the rate exponentially. There is not enough information to know the best choice between time & Principal

• They would all have the same affect, if any of the pieces of an expression are doubled then the value is doubled

Choose all of the expressions that simplify to x⁴ - y⁴

• (x² - y²)(x² + y²)

• (x²+y²)(x+y)(x-y)

• (x²)² - (y²)²

• (2x-2y)(2x+2y)

• (x³+ x) - (y²+y²)

Tags

CCSS.HSA.APR.C.4

Solve

16a² - 9 = 0

• a = ^-3/₄, ³/₄

• a = ^-4/₃, ⁴/₃

• a = ^-9/₁₆, ⁹/₁₆

• a = ^-16/₉, ¹⁶/₉

• No Real Solutions, they are imaginary

Which of these equations has zeros at -4 and -5?

• f(x) = x² + 9x - 20

• f(x) = x² - 9x + 20

• f(x) = x² - 9x - 20

• f(x) = x² + 9x + 20

• f(x) = x² - 5x - 4

Tags

CCSS.HSA.APR.B.3

A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function

h = -16t² + 64t + 960.

How many seconds did it take for the ball to reach its maximum height?

• 10 seconds

• 64 seconds

• 960 seconds

• 2 seconds

• 4 seconds