Answer: -6
Step-by-step explanation:
Let x= the number
2x-4=x-10 ⇔ according to the statement
x-4=-10 ⇔ subtraction property of equality (subtract x from both sides)
x=-6 ⇔ addition property of equality (add 4 on both sides)
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Answer:
The minimum sample size is 1867 observations.
Step-by-step explanation:
We need to construct an 85% confidence interval that has an error less than 0.06. It means that the difference between the upper limit (UL) and the lower limit (LL) has to be 0.06.
The only variable we can adjust is the number of observations (n)
For a 85% confidence interval, the z-score is 1.440.
The estimated variance (s^2) is 0.81.
The error e is 0.06.
The sample has to be at least of 1867 observations.
Answer:
if not mistaken is use a compass and draw an arc across both the legs of the given angle
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Answer:
I'll find X for you; the next step is by you.
Step-by-step explanation:
we have two similar pentagons
I will do it in 2 ways.
1.
=> 48/4x = (x+2)/x
=> 12/x = (x+2)/x
Because of pentagons so x > 0
=> 12 = x + 2 => x = 10
2.
k is unknown number
=> 4x = k.x and 48 = k.(x + 2) (x > 0)
=> k = 4 and 48 = 4.(x + 2)
=> 12 = x + 2 => x = 10
False however a one to one function has to be represented by a straight line the way to test a function is the vertical line test
