Well, the square root of 82 is an irrational number, so
it can never be completely written with digits. As a
decimal, it goes on and on forever, and never ends.
As a fraction, it can't be written at all.
The square root of 82 is approximately 9.055 .
(That number is about 0.0043% too small, which is pretty close.)
Answer:
P(X<118.81)=0.0803
Step-by-step explanation:
Assuming the distribution for the mean life is approximately normal, with mean 120 months and variance 64 months^2, we can calculate the parameters for a sampling distribution with sample size = 89 computers.
The sampling distribution mean will be equal to the mean for a single computer:
The standard deviation will be adjusted by the sample size as:
With these parameters, we can calculate the z-score for X=118.81.
Then, the probability that the mean of a sample of 89 computers is less than 118.81 months is:
Answer:
≈ 20.11 m²
Step-by-step explanation:
Area of lawn covered by one full rotation:
- Ch = πdw, where
- C= circumference of the roller,
- w = width of the roller,
- d = diameter of the roller
<u>Area covered by 20 rotations of the roller:</u>
- 20*πdw = 20π*0.4*0.8 ≈ 20.11 m²
Answer:
The equations that are true are
B
C
E
Step-by-step explanation:
A) States that 0 + 451 = 0, but that is not true because...
0 + 451 = 451
B) States that 130 + 210 = 210 + 130, and that is true because...
130 + 210 = 210 + 130
340 = 340
C) States that (127 + 80) + 250 = 127 + (80 + 250), and it is true because...
(127 + 80) + 250 = 127 + (80 + 250)
127 + 80 + 250 = 127 + 80 + 250
457 = 457
D) States that (123 + 57) + 180 = 153 + (87 + 180), but that is not true because...
(123 + 57) + 180 = 153 + (87 + 180)
123 + 57 + 180 = 153 + 87 + 180
360 = 420 (but this does not make sence)
E) States that 497 + 0 = 497, and it is true because...
497 + 0 = 497
497 = 497
Based on the calculations on the bisector of ST, the value of ST are equal to 38 and 30 respectively.
<h3>How to find the bisector of ST?</h3>
In order to determine the bisector of a line segment with two (2) endpoints, we would add each point together and divide by two (2).
For exercise 1, we have:
ST = SM + MT
ST = 19 + 19
ST = 38.
For exercise 2, we have:
First of all, we would determine the value of x as follows;
3x - 6 = x + 8
3x - x = 8 + 6
2x = 14
x = 14/2
x = 7.
ST = SM + MT
ST = 3x - 6 + x + 8
ST = 3(7) - 6 + 7 + 8
ST = 30.
Read more on bisectors here: brainly.com/question/2878035
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