A member of book club wishes to purchase two books from selection of ten books recommended for a certain month. In how many ways can she choose them?
a. 47
b. 20
c. 90
d. 45
e. 12
d. 45
Mathematics
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Solve the problem.If a boat uses 15 gallons of gas to go 68 miles, how many miles can the boat travel on 60 gallons of gas?
A. 17 miles B. 272 miles C. 544 miles D. 292 miles
Mathematics
Add the given pair of complex numbers geometrically.z1 = -11 + 4i, z2 = 3
A. -14 + 4i B. -8 + 4i C. -14 + 7i D. -8 + 7i
Mathematics
Provide an appropriate response.Use the simplex method to minimize Z = -x1 + 2x2 subject to x1 + x2 ? 4 5x1 + x2 ? -12 2x1 + 5x2 ? -14 3x1 - 2x2 ? 17
What will be an ideal response?
Mathematics
Solve the equation.3(2x - 38) = 6x - 114
A. - 
B. all real numbers
C. ?
D. - 19
Mathematics