Factor by grouping.12x2 - 20xy + 15x - 25y
A. (4x - 5y)(3x + 5)
B. (12x + 5)(xy - 5)
C. (4x + 5)(3x - 5y)
D. (12x - 5)(y + 5)
Answer: C
Mathematics
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In the circuit below, Vin = 20 V, R = 12 Kê, and C = 0.003 æF. Find fCO.
a. 2.8 KHz
b. 4.4 KHz
c. 8.3 KHz
d. 14 KHz
e. 84 KHz
Mathematics
Evaluate the expression.10 + 4 ÷ 2 ? 4 - 6
A. 22 B. 12 C. 50 D. 24
Mathematics
Solve the problem.There are 2390 under-capitalized retail stores. If this represents 18% of all retail stores, what is the total number of retail stores? Round to the nearest whole number.
A. 430 B. 133 C. 43,000 D. 13,278
Mathematics
Solve the inequality.4x2 - 32x + 60 < 0
A. -5 < x < -3 B. 3 < x < 5 C. x < 3 or x > 5 D. x < -5 or x > -3
Mathematics