Step-by-step explanation:
Begin with expressing 492,623 in standard form.
4 hundred thousands + 9 ten thousands + 2 thousands + 6 hundreds + 2 tens + 3 ones.
We can rephrase this in varied forms by shifting a digit to the next lower place value. For instance, shifting the 4 one place right results in 49 ten thousands:
49 ten thousands + 2 thousands + 6 hundreds + 2 tens + 3 ones.
Next, we can move 49 ten thousands one place right to express it as 492 thousands, and shift 6 hundreds right to yield 62 tens.
492 thousands + 62 tens + 3 ones.
Alternatively, we can phrase it as:
4926 hundreds + 23 ones.
Answer:
0.210; 0.790
Step-by-step explanation:
Given the following:
Correct completion rate by technicians = 21%
Minor error occurrence rate = 70%
Major error rate in chemical sample measurement = 9%
A.) The probability that a randomly chosen technician finishes preparation without any errors:
This corresponds to the technicians' correct completion rate:
P(correct completion) = 21% = 0.210
B.) The probability of completion with either a minor or major error:
P(completion with minor error) + P(completion with major error)
= 70% + 9%
= 0.70 + 0.09
= 0.790
See below
If I remember correctly, when two slopes are perpendicular, one should be the negative reciprocal of the other, so I believe your answer needs to be B. -\frac{2}{3}
Hope this helps
