Which of the following correctly describes the variation in the equation A = πr2?

1. A varies directly with r.

2. A varies jointly with π and r.

3. A varies inversely with r.

4. A varies directly with π and r.

there are 160 boys and girls playing in the soccer tournoment. 32 of the students are wearing orango. what percent of the players are wearing orange?

Qual os múltiplos de 4 e 6

Comparison sentence for 63=7x9

The first three terms of an arithmetic sequence are x-1, 3x-2 and 5x-3. Which of the following expressions represents the 15th term in the arithmetic sequence

Eva, the owner of eva's second time around wedding dresses, currently has five dresses to be altered, shown in the order in which they arrived: job processing time (hrs) due (hrs from now) v 3 5 w 1 1 x 4 9 y 2 3 z 5 7 if eva uses the shortest

The local citizen's group sold raffle tickets and made $430. This was 3 times the amount of money that the winner received. Write an equation that could be used to find the amount, w, received by the winner.

List the amplitude, period, phase shift and vertical shift of the function (t) = 5 sin 2t.

Simplify s7 4 1216-10-7-5 6

Best Buy sells CDS and DVDS. Jose bought 3 CDs and 2 DVDs for $58. Lisbeth bought 1 CD and 4 DVDs for $46. Determine the selling price for each

There is a 40% chance that you will be elected president of the history club. There is a 10% chance that your friend will be elected treasurer of the history club. You use a random number generator to randomly generate 50 numbers from 0 to 99.