Provide an appropriate response.Explain the error in the following: x2 + 2x - 15 = (x - 5)(x + 3)

What will be an ideal response?


The factorization yields a middle term of -2x rather than 2x:  
 x2 + 2x - 15 = (x + 5)(x - 3)

Mathematics

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A prime number is a natural number that is larger than 1 and can only be divided exactly by itself and 1.Which of the following sets of numbers contains only prime numbers? 

A. { 37, 27, 35 } B. { 28, 3, 37 } C. { 17, 27, 37 } D. { 3, 17, 6 } E. { 17, 21, 27 }

Mathematics

Multiply. Simplify, if possible.4 ? 

A.
B. 3
C. - 
D. 12

Mathematics

Use a table of square roots or a calculator to approximate to the nearest thousandth.

A. 12.767 B. 12.772 C. 163.000 D. 12.764

Mathematics

Solve.You deposited $8,000 in an account that pays 12% annual interest compounded monthly. Write the equation to determine the amount, A, you will have in t years. How much will you have in 5 years?

A. A = 8,000(1.01)t; $8,408.08 B. A = 8,000(1.12)t; $14,098.73 C. A = 8,000(1.01)12t; $14,533.57 D. A = 8,000e0.12t; $14,550.29

Mathematics