Solve.x - 4 + 3 = 0

A. 1, 3
B. 1, 9
C. No solution
D. 1


Answer: B

Mathematics

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Given a group of students:  or  list and count the different ways of choosing the following officers or representatives for student congress. Assume that no one can hold more than one office.Three representatives, if two must be male and one must be female

A. ACB, ACD, AEB, AED, CEB, CED, DEC, BEC, DEA, BEA, DCA, BCA; 12 B. ACB, ACD, AEB, AED; 4 C. ACB, ACD, AEB, AED, CEB, CED; 6 D. ABC, CDE; 2

Mathematics

Write the augmented matrix for the system. Do not solve the system. 7x + 4y = 39 5x + 3y = 29

A.

B.

C.

D.

Mathematics

Solve the proportion for the item represented by a letter. ? ?  __________

Fill in the blank(s) with the appropriate word(s).

Mathematics

A man is flying in a hot-air balloon in a straight line at a constant rate of 6 feet per second, while keeping it at a constant altitude. As he approaches the parking lot of a market, he notices that the angle of depression from his balloon to a friend's car in the parking lot is 36°. A minute and a half later, after flying directly over this friend's car, he looks back to see his friend getting into the car and observes the angle of depression to be 37°. At that time, what is the distance between him and his friend? (Give your answer to the nearest foot.) ? Distance = __________ ft

Fill in the blank(s) with the appropriate word(s).

Mathematics