A student arrives to class unaware of a quiz. The quiz is made up of 15 multiple choice questions with 5 possible outcomes for each (only one of which is correct). a) If the student randomly guesses for each question, what is the probability that the student will

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629