Find the inner product for (7.2) (0,-2) and state whether the vectors are perpendicular.
a. -4; no
c. 4; no
b. -4; yes
d. 4; yes

Find the quotient. 50a2 – 98b2 -5a +7b

Ajar of gumballs contains 4 reds, 2 greens, and 6 blues. what is the probability of getting two blues in a row without replacement?

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm