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Serga [27]
3 years ago
15

A machine produces bolts with a mean diameter of 0.30 inches and a standard deviation of 0.01 inches. The diameters are approxim

ately normally distributed. What is the probability that a randomly selected bolt with a diameter less than 0.32 inches? round to the nearest tenth.
Mathematics
1 answer:
scZoUnD [109]3 years ago
4 0
Mean = 0.30
Standard deviation = 0.01
X<0.32?

Using the formula, you get that Z=(0.32-0.30)/4.5 and Z=0.004

Find this value on your table (0.5000)

Then you have that P(X<0.32)= 0.5000
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Factor the quadratic expression completely.<br> -3x^2 + 17x - 20
Luba_88 [7]
Answer- -(x-4)(3x-5)

Work- -3x^2+12x+5x-20
-3x(x-4)+5(x-4)
7 0
3 years ago
315,728 rouned to the nearest ten thousand
Masja [62]

Answer:

320,000 is the answer

Step-by-step explanation:

have a good day!!

8 0
3 years ago
Can someone please help
Sloan [31]

Answer:

41

Step-by-step explanation:

an = a1 + (n-1)d

a_n = the nᵗʰ term in the sequence = 10

a_1 = the first term in the sequence = 5

d = the common difference between terms = 4

a10 = 5 + (10-1)4

a10 = 5 + (9)4

a10 = 5 + 36

a10 = 41

7 0
2 years ago
Explain how you would write 423,090,709,000 in word form
vfiekz [6]
Four hundred twenty-three billion, ninety million, seven hundred nine thousand


Hope this helped:))
8 0
3 years ago
15% of Alina’s workout consisted of cardio exercise. 25% of Dane’s workout consisted of cardio exercise. Which statement must be
Arisa [49]


The correct answer is B. If Alina’s workout was 80 minutes, and Dane’s workout was 48 minutes, they spent the same amount of time on cardio exercise.

To figure this out, first find 15% of 80 and then 25% of 48.

To find 15% of 80, you can first find 10% of 80 which is 8(just move the decimal one place to the left). The remaining 5% will be half of 8 since 8 is 10%. Add both the numbers up and you will get 12. (8+4=12)

To find 25% of 48, you can divide 48 by 4. Since percent means 'out of 100', 25% is 25 of 100. 100 divided by 25 is equal to 4. So, 48 divided by 4 is equal to 12.

So, the final answer is B. They both equal to 12.

Hope it helps :)

6 0
3 years ago
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