AddMaths Quiz F5

Express :

2ⁿ⁺¹ - 3 ( 2ⁿ ) + 7( 2^{n -1} ) in the simplest form.

• $5\left(2^n\right)$

• $\frac{5}{2}\left(2^n+1\right)$

• $\frac{5}{2}\left(2^n\right)$

• $5\left(2^n-1\right)$

Find the range of values of x if  $x^2\ge16$  

•  $x\ge4,\ x\le-4$  

•  $x\ge\pm4$  

•  $-4\le x\le4$  

•  $-4\ge x\ge4$  

Given g(x) = 6 – 5x, find value of m when g^-1(m) = -4

• 30

• 22

• 26

• 33

 Find the value of  $\log_x\frac{1}{64}=-2$  

• x = 8

• x = -8

• x = 4

• x = -4

 Find the value of k if the straight line  $y=kx+2$ is parallel to the straight line   $8x-2y+1=0$  

• k = -4

• k= 3

• k = 2

• k= 4

Given set of data 1, 3, 4, 6, 7, 7 and 9 , determine the interquartile range of this set.

• 7

• 4

• 3

• 5

If 2 and p are the roots of  $2x^2+3x+\ k=0$  , find the value of k and p. 

• k = -7/2 , p = 7

• k = -7 , p = -14

• k = -7/2 , p = -14

• k = 7 , p = 7

Which of the following is not an Arithmetic Progression?

• 1, 4, 7, 10, .....

• -5, -2, 1, 4, .....

• 3, 7, 12, 16, ......

• 11, 14, 17, 20, .....

Tags

CCSS.HSF.BF.A.2

Find the 11^th term for: 64, -32, 16, -8, …

• -0.0625

• 0.0625

• -0.03125

• 0.03125

Which sequence is represented by the equation 2(7)^n-1 ?

• 7, 14, 28, 56...

• 2, 9, 16, 23...

• 2, 14, 98, 686...

• 7,9,11,13...

Tags

CCSS.HSF.BF.A.2