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)
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Find the probability.In a certain college, 33% of the physics majors are ethnic minorities. A random sample of 10 physics majors is chosen. Find the probability that exactly 4 are not ethnic minorities. Round to the nearest ten-thousandth.
A. 0.0467 B. 0.2253 C. 0.2564 D. 0.0547
Write the augmented matrix for the system.-2x + 5y = -6 2x + 3y = -10
A. 
B. 
C. 
D. 
Solve the problem.A church steeple casts a shadow 105 ft long, and at the same time a 9.0-ft post casts a shadow 5.0 ft long. How high is the steeple? Round to the nearest unit.
A. 58 ft B. 189 ft C. 9 ft D. 124 ft
Express the rational expression in lowest terms.
A. 
B. 
C. 
D. 