The weight of newborns of s particular species of rhino is distributed normally with a mean of 65 pounds and standard deviation of 11. calculate the z-score of a newborn weighing 90 pounds and round to the nearest hundredth

~2.27
~0.88
~-0.88
~-2.27

The correct answer is A. ~2.27

Step-by-step explanation:

1. Let's review the information given to answer the question correctly:

Mean of the weight of newborns of s particular species of rhino = 65 pounds

Standard deviation = 11

Weight of the newborn we want to calculate its z-score = 90 pounds

2. Let's calculate the value of z-score, using the following formula:

z-score = (Weight of the newborn - Mean of the weight of newborns of s particular species of rhino)/Standard deviation

Replacing with the real values, we have:

z-score = 90 - 65/11 = 25/11 = 2.272727

z-score = 2.27 (Rounding to the nearest hundredth)

x=6 and x=3

beep beep imma sheep

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204