A cell phone charger uses 5.6 Joules of energy per second when plugged

into an outlet but only 1.7 Joules of energy per second actually end up in

the cell phone battery. What is the efficiency of the charger?

1.) 30%

2.) 3.29%

3.) 329%

4.) 9.59%

If BPD and dpc have a sum of 72 degrees What is APC? A. 18° B 90° D. 180°

Malachi has 2 blue balls. The blue balls make up 1/8 of his collection. How many balls are in his collection

What two things do we need to create an exponential function?

The variable n represents a whole number

Kieth is a furniture salesman. His weekly pay is $400 plus 4.5% of his total sales for the week. Kieth sells d dollars worth of furniture during the week. Which function ƒ (d) can be used to determine his pay for the week?

3x 2 + 2x - 5 and - 4 + 7x 2 -x2 + 9x - 9 21x2 + 2x + 20 10x2 - 5x - 1 10x2 + 2x - 9

Create an equation to show Nancy's age, x, in terms of Jen's age, y.

On call 3.5 hour $10 talk time 1/2 hour $1.25 what is the unit rate in dollar per hour for each company

The Empire State Building is 1250 feet tall. At 3:00 pm, Pablo stands next to the building and has an 8-foot shadow. If he is 6 feet tall, how long is the Empire State Building's shadow at 3:00 pm? 1666.67 feet 1.67 feet 166.67 feet 16.67 feet

What is the maximum value of P = 24x + 30y, given the constraints on x and y listed below? x+y (less than or equal to) 5 x-y (greater than or equal to) - 1 x (greater than or equal to) 0 y (greater than or equal to) 0 120 132 138 150