explain why you cannot use the axes of symmetry to distinguish between the quadratic function y = 3x² + 12x + 1 and y = x² + 4x + 5.

134.6 us dollars

step-by-step explanation:

1 us dollar = 1.33 canadian dollars

so, 150 us dollars = 150 × 1.33 = $199.5.

in canada, the money mitchell spent = 20 canadian dollars.

remaining canadian dollars with him = 199.5 - 20 = 179.5.

after mitchell returned to us, he exchanged the remaining canadian dollars to us dollars.

179.5 canadian dollars = 179.5 × 0.75 = 134.6 us dollars.

the graph line crosses the x axis at both -6 and -2, so the answer would be the second one.

it should be described as a proper fraction.

problem

you deposit some money into a bank account paying 4% simple interest per year. you received $72 in interest after 3 years. how much the deposit (principal) was?

result

the principal was $600.

explanation

find principal by using the formula i=p⋅i⋅t, where i is interest, p is total principal, i is rate of interest per year, and t is total time in years.

in this example i = $72, i = 4% and t = 3 years, so..