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Gennadij [26K]
2 years ago
13

Solve for x. -3/5x+1/5>7/20

Mathematics
1 answer:
kakasveta [241]2 years ago
3 0

Answer:

Step-by-step explanation:

15 + 720 is 1120

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19 Select the decimal that is equivalent to 27 Choose 1 answer: А 0.626 B 0.626 C 0.703 0.703 E None of the above ​
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Answer:

I am pretty sure it is none of the above but I don’t know for sure

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2 years ago
How much time is in between these two times?<br><br> Start: 11:34 A.M.<br><br> End: 10:23 P.M.
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The lengths of pregnancies are normally distributed with a mean of 269269 days and a standard deviation of 1515 days. a. Find th
kati45 [8]

Answer:

a. 0.38%

b. 266.75 days

Step-by-step explanation:

We have the following data, mean (m) 269 and standard deviation (sd) 15, therefore:

a. The first thing is to calculate the number z:

z (x) = (x - m) / sd

z (309) = (309-269) / 15 = 2.67

When looking in the normal distribution table (attached), we have that at this value of z, the probability is:

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b. Find the z-value with a left tail of 44%, i.e. 0.44. We look in the table for this value and what value of z corresponds.

invNorm (0.44) = -0.15

Find the corresponding number of days:

x = z * sd + m

we replace

d = -0.15 * 15 + 269 = 266.75 days

7 0
3 years ago
I already solved this but I'm confused if the answer is A or C?
irinina [24]
The answer is C. a 4.5 feet, b. 30 feet
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2 years ago
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