Answer:
73.1 inches
Step-by-step explanation:
We solve for this using z score formula.
z-score is z = (x-μ)/σ,
where x is the raw score,
μ is the population mean
σ is the population standard deviation.
x = unknown = randomly selected male's height
μ = 70.3 inches
σ = 4.1 inches
z = is not given but we are given its percentile which is 75
The z score for a 75th percentile = 0.674
Hence,
0.674 = x - 70.3/4.1
Cross Multiply
0.674 × 4.1 = x - 70.3
2.7634 = x - 70.3
x = 70.3 + 2.7634
x = 73.0634 inches
The height of the randomly selected male = 73.0634
Therefore, the height of the randomly selected male to the nearest tenth of an inch is 73.1 inches
Answer: A
Step-by-step explanation:
-120 is how many people leave a year so multiply that by the 3 years it’s been happening then it’s A, 360 left in the past 3 years
Answer:
−10x − y = −20
y = -10x + 20
<em>hope this helps, good luck :)</em>
Answer:
Step-by-step explanation:
A function is odd if f(-x) = -f(x)
A function is even if f(-x) = f(x)
And neither if neither are true.
In this case if we plugged in a negative x here
f(-x) = (-x)^3 - 11(-x)
f(-x) = -x^3 + 11
Therefore, this function is odd because if we pulled out a negative one again we would get back the original function. Or in other words f(-x) = -f(x) for f(x) = x^3 - 11x
<u>Answer:</u>
The correct answer option is B) x equals quantity of negative 7 plus or minus I square root of 3 all over 2.
<u>Step-by-step explanation:</u>
We are given the following quadratic equation:
Taking the constant on the same side as the variable to get:
Since, it cannot be factorized so we will use the quadratic formula:
x =
Substituting in the values of a, b and c in the above formula to get:
x=
x = , x =
Therefore, the correct answer option is B) x equals quantity of negative 7 plus or minus I square root of 3 all over 2.