Pre-Cal Exam

Which number is the BASE?

6^9 = 8

• 2

• 3

• 8

• 6

Tags

CCSS.HSF.BF.B.5

Marina had $24,500 to invest. She divided the money into three different accounts. At the end of the year, she had made $1,300 in interest. The annual yield on each of the three accounts was 4%, 5.5%, and 6%. If the amount of money in the 4% account was four times the amount of money in the 5.5% account, how much had she placed in each account?

• $8000 was invested at 4%

  $2000 was invested at 5.5%

  $14,500 was invested at 6%

• $2000 was invested at 4%

  $9000 was invested at 5.5%

  $13,500 was invested at 6%

Given h(x) = 3x and k(x) = x²+2, find h(k(x)).

• 3x²+2

• 3x²+6

• x²+3x+2

• x²+5x

Tags

CCSS.HSF-BF.A.1C

Tickets to a concert cost $7 for adults and $4 for children. A group of friends purchased 20 tickets for $106.00. How many adult tickets did they buy?

• 10

• 12

• 14

• 16

Tags

CCSS.8.EE.C.8C

The sum of two numbers is 48. Their difference is 18. What are the numbers?

• 16, 32

• 15, 33

• 24, 24

• 31, 17

Tags

CCSS.8.EE.C.8C

The length of a rectangle is 3 meters greater than 2 times the width. The perimeter of rectangle is 30 meters. What is the length of the rectangle?

• 30 meters

• 27 meters

• 3 meters

• 11 meters

Find the equation of the line passing through (0,5) and (5,9). Present answer in slope-intercept form.

• y = 4/5x + 5

• y = 5/4x + 5

• y = x - 5

• y = x + 5

What are the intercepts of 2x − 4y = 8?

• y-int = 2, x-int = 2

• y-int = -2, x-int = 4

• y-int = 4, x-int = 6

• y-int = 3, x-int = -6

Solve |5x − 20| < 15.

• 1 < x < 7

• 5 < x < 7

• -1 < x < -7

• x > 2 or x < 5

log(4x)

• log4-logx

• log4+logx

• 4logx

• xlog4