Multiple choice identify the letter of the choice that best completes the statement or answers the question. estimate 78,135 – 19, 431 a. 70,000 c. 50,000 b. 60,000 d. 40,000

b. 60,000

Step-by-step explanation:

78,135 is approximately 80,000

19,431 is approximately 20,000

80,000 - 20,000 = 60,000

So we can estimate that 78,135 - 19,431 ≈ 60,000

b. 60,000

Step-by-step explanation:

78,135 – 19, 431

78135 rounds to 80000

19431 rounds to 20000

80000 - 20000

60000

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.