HELP PLS WORTH 25 POINTS
1 answer:
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The answer is b. You can find it by doing Pythagorean theorem. You know the radius and one side of the triangle, so now you solve for the other side by using that theorem. Once you have the length of the missing side you subtract it from the radius. (14.5 - 10.5).
Step-by-step explanation:
Hey, there!!
I hope you mean to subtract (-137) +(-43) from sum of -103 and 27.
First, add -103 + 27
{As ( minus + plus )= subtracts with sign which has greator value. }
now,
{ minus + minus = add with minus sign}.
Now, subtracting -180 from -76.
=(-76) - (-180 )
Now, multiply the sign (- × -)= +
so, -180 becomes +180
= -76+180
= 104..... is answer.
<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
Answer:
The probability that X will be more than 0.5 away fro the population
mean is 0.7812 ⇒ answer a
Step-by-step explanation:
* Let us explain how to solve the problem
- The sample size n is 25
- The mean of the population μ is 41
- The standard deviation σ is 9
- We need to find the approximate probability that X will be more than
0.5 away from the population mean
∵ z-score = (X - μ)/(σ/√n)
∵ X - μ = 0.5
- That means X > 41 + 0.5, OR X < 41 - 0.5
- Then we need to find P(X > 41.5) and P(X < 40.5)
∵ z = = 0.2778
∵ z = = -0.2778
- Let us use the normal distribution table to find the corresponding
area to z-score
∵ P(z < 0.2778) = 0.6116
∵ P(z > -0.2778) = 0.3928
- P(40.5 < X < 41.5) = P( -0.2778 < z < 0.2778)
∴ The probability of X to be with in 0.5 = 0.6116 - 0.3928
∴ The probability of X to be with in 0.5 = 0.2188
∵ The probability of X to be more than 0.5 away from the population
mean = 1 - 0.2188
∴ P(X > 41.5) OR P(X < 40.5) = 0.7812
* The probability that X will be more than 0.5 away fro the population
mean is 0.7812