Quick math problems help, please

Test Preparation SAT Preparation
1

<p>In triange PQR, PQ = 4, QR = 3, PR = 6 and the measure of angle PQR is x. Which of the following must be true about x?</p>

<p>A. 45 <_ x < 60
B. x = 60
C. 60 < x < 90
D. x = 90
E. x > 90 </p>

<p>Let a "prd" number be defined as one in which the product of the positive divisors of the number, not including the number itself, is greater than the number. Which of the folliowing is a prd number?</p>

<p>A. 8
B. 15
C. 18
D. 21
E. 27</p>

<p>Thank you!</p>

2

<p>The first one should be E because if x was 90, then PR would be 5; however, since PR is greater than 5, the angle should be greater than 90.</p>

<p>The second one is C because the divisors/factors of 18 are 1,2,3,6, and 9 (not including 18). If you multiply the divisors together, then the product is bigger than 18.</p>