What is the solution of the system? use elimination.

3x – 4y = –24
x + y = –1
a. (3, 4)
b. (4, 3)
c. (0, 6)
d. (–4, 3)

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter engine. (a) compute the z-score corresponding to the individual who obtained 42.342.3 miles per gallon. interpret this result.

In right triangle xyz, the right angle is located at vertex y. the length of line segment xy is 12.4 cm. the length of line segment yz is 15.1 cm. which is the approximate measure of angle yzx? 34.8° 39.4° 50.6° 55.2°