Let  and  and find

src="https://sciemce.com/media/3/ppg__cognero__Section_8.1_Comptex_Numbers__media__f86d598a-35eb-412e-a785-32e691cf07d6.PNG" style="vertical-align:middle;" />.

?



A.
B.
C. ?
D. ?
E. ?

---

Answer: B

Mathematics

A discrete probability distribution for a random variable X is given. Use the given distribution to find the requested information.Find P(X ? 2).pi =  0.2i 0.83 - i, xi = i, i = 0, 1, 2, 3

A. 0.104 B. 0.216 C. 0.992 D. 0.008

Indicate whether the equation illustrates the commutative property of addition, commutative property of multiplication, associative property of addition, associative property of multiplication, or the distributive property.6x + (9y + 4x) = 6x + (4x + 9y)

A. Associative property of addition B. Associative property of multiplication C. Distributive property D. Commutative property of addition

Evaluate the factorial expression.9!

A. 18 B. 362,880 C. 72 D. 13

Solve the problem.Mardi received an inheritance of $60,000. She invested part at 9% and deposited the remainder in tax-free bonds at 12%. Her total annual income from the investments was $6300. Find the amount invested at 9%.

A. $53,700 B. $15,000 C. $30,000 D. $29,000