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Olenka [21]
3 years ago
8

Which of these is an example of a non-random sample?

Mathematics
2 answers:
klemol [59]3 years ago
7 0

Answer:

B is the answer because its an example of a non randon sample

Black_prince [1.1K]3 years ago
3 0

Answer:

it is D :)

Step-by-step explanation:

trust me ;)

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Help me please and thank <br><br>interval notation:<br><br>number line:<br><br>steps:​
shutvik [7]

Answer:

  • x ∈ ∅

Step-by-step explanation:

<u>Solve each inequality and find the common set:</u>

  • 2x - 5 > - 11 ⇒ 2x > 5 - 11 ⇒ 2x > - 6 ⇒ x > - 3
  • -10x - 6  ≥ 44 ⇒ - 10x ≥ 6 + 44 ⇒ - 10x ≥ 50 ⇒ x ≤ - 5

<u>Solution interval:</u>

  • x ∈ ∅

There is no solution to system to show on the number line

6 0
3 years ago
What is the place value of 2 in 23?
meriva
It's value is 20 :) in the tenths place
you can also use a place value chart :)
4 0
3 years ago
The automatic opening device of a military cargo parachute has been designed to open when the parachute is 200 m above the groun
kirill115 [55]

Step-by-step answer:

Given:

mean, mu = 200 m

standard deviation, sigma = 30 m

sample size, N = 5

Maximum deviation for no damage, D = 100 m

Solution:

Z-score for maximum deviation

= (D-mu)/sigma

= (100-200)/30

= -10/3

From normal distribution tables, the probability of right tail with

Z= - 10/3

is 0.9995709, which represents the probability that the parachute will open at 100m or more.

Thus, by the multiplication rule, the probability that all five parachutes will ALL open at 100m or more is the product of the individual probabilities, i.e.

P(all five safe) = 0.9995709^5 = 0.9978565

So there is an approximately 1-0.9978565 = 0.214% probability that at least one of the five parachutes will open below 100m

6 0
4 years ago
5.45 inches long by 9.4 inches wide and 3.9 inches high what is the volume of the stack of paper
galben [10]

Answer:

199.797

Step-by-step explanation:

5.45 x 9.4 x 3.9

8 0
3 years ago
What is the value of x? <br><br><br><br>​
Alecsey [184]

Answer:

The value of x is 104

Step-by-step explanation:

we are given 52 we know that 52 is within an isosceles triangle.

which means 2 sides are the same which tells us that the two angles touching the unique side will have the same measure

we also know that a triangle adds up to 180 so 52 + 52 gives us 104 meaning the last angle will be 180 - 104 which is 76

now we have completed the first triangle if

if we look at corner c we know that it's a right angle

we know that right angles are a total of 90 degrees we know that the right angle is split into two complementary angles one of them is 52 which we figured from the first part so

90 - 52 would give us 38 now we know that in triangle CDE one of the measures is 38 at the c corner and another is 90 at the E corner

once again we do 90 + 38 = 128 and subtract that from 180 giving us 52.

Now we know the measures of triangle ADC and CDE

We also know that triangle EDB is a congruent mirror reflection of CDE

So by now we have the measures of 3 triangles CDE ADC AND EDB

we also know that angle F/x is equvilant to the total of both of angle D

so we just add 52 + 52 giving us the measure of the whole angle d combined which we know is eqivilant to angle f

So after all that we know that the value of x is 104 degrees.

Hope this helps its a long explanation but please take ur time to understand and read through it :)

3 0
2 years ago
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