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Ann [662]
2 years ago
11

In a box of 100 batteries, 3 do not work. A product tester randomly picks two batteries to test. what is the possibility that bo

th do not work if the first one is not put back after being tested
Mathematics
1 answer:
Komok [63]2 years ago
7 0

Answer:

1/1650

Step-by-step explanation:

The probability of picking a bad battery the first time is 3/100 because there are 3 batteries that do not work out of the 100 batteries

Since we picked a battery, that leaves 99 batteries with 2 batteries that do not work, assuming we picked one on the first pick;

So the probability of picking a bad battery the second time is 2/99

The total probability is (3/100)(2/99) = 6/9900 = 1/1650

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Which trigonometric functions are negative in the fourth (IV) quadrant?
anzhelika [568]
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Explanation:

On the unit circle we have some point (x,y) such that x = cos(theta) and y = sin(theta). The sine corresponds to the y coordinate of the point on the circle. Quadrant IV is below the x axis which explains why sine is negative here, since y < 0 here.

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7 0
3 years ago
Graham sold six magazines less than double what Adriannne sold, a. Which of the following expressions represents Graham’s sales
Eva8 [605]

The best and most correct answer among the choices provided by your question is the fourth option or letter D. The expression that represents Graham's sales is 2a − 6. Twice the sales of Adrianne, deducted by 6 should be Graham's sales.

Hope this helps!

6 0
3 years ago
Michael practiced batting and kept track of his hits. He missed 2 balls but hit 8 balls that were pitched to him. How many balls
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Answer:

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Step-by-step explanation:

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