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12345 [234]
2 years ago
14

Please help me with this, I only have a few more questions and I'll be posting them on my page for help

Mathematics
1 answer:
Irina18 [472]2 years ago
7 0

Answer:

B) 450

Step-by-step explanation:

You use the greater amount minus the lesser amount, times 30 minutes.

55-40=15

15 x 30=150

Hope I helped!

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Cassie rolls a fair number cube with 6 faces labeled 1 through 6. She rolls the number cube 300 times.Which result is most likel
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about 7.5 gallons of water fill up 1 cubic foot of space. how many gallons of water will fill a goldfish pool shaped like the pr
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3 years ago
0 ft elevation, diver is underwater at depth of 138 ft. In this area, the ocean floor has a depth of 247 ft. A rock formations r
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3 0
3 years ago
Read 2 more answers
Question 4 of 25
Gnoma [55]

Answer:

Step-by-step explanation:

We are looking for P(58 < x < 64). We need to find the percentage to the left of the z-scores for each of these numbers. To find the z scores, use the formula:

z=\frac{x_i-\bar{x}}{\sigma}

z=\frac{58-62}{4} which gives us a z-score of -1. The percentage of numbers to the left of a z-score of -1 is .1586553

Now for the other z-score:

z=\frac{64-64}{4} which gives us a z-score of .5. The percentage of numbers to the left of a z-score of .5 is .69146246

The lower percentage subtracted from the higher gives the area in question:

.69146246 - .1586553 = .53280716, or as a percentage, 53.3%, choice A.

7 0
3 years ago
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