Factor completely. If unfactorable, indicate that the polynomial is prime.x2 + 40x + 400
A. (x + 20)2
B. prime
C. (x - 20)2
D. (x + 20)(x - 20)
Answer: A
Mathematics
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Solve using the substitution method. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this.a + 4b = 23a = -12b + 6
A. (4, 2) B. {(a, b)|a = 4b + 2} C. No solution D. {(a, b)|a + 4b = 2}
Mathematics
Find the area of the triangle. If necessary, round the answer to two decimal places.
A. 2.42 B. 7.88 C. 0.35 D. 1.97
Mathematics
Solve and check your answer.9x - 5 - 8x + 1 = 3 + 4
A. x = -3 B. x = -11 C. x = 11 D. x = 3
Mathematics
If the expression is in exponential form, write it in radical form. If it is in radical form, write it in exponential form.(7x + 3)3/4
A.
B. 3
C.
D. 4
Mathematics