Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,175 per hour and a standard deviation of $245.What is the operating cost for the lowest 4 percent of the airplanes? (Round z value to 2 decimal places. Omit the "$" sign in your response.)

Answers

Answer 1

Answer: I assume you can use either a graphing calculator with built-in normal distribution or a normal distribution chart? Either way, check z-value for p<0.04 and get z=-1.75
x=mean+(s.d.)*z=2175-1.75*245=1746.25

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Im just going to type in all of the questions i need answers with tysm besties
-16 t+3.5

Answers

Answer:

on the x axis start from the point and draw it forward to -16(basically negative side) the draw a line upwards on the y-axis to the line inbetween 3 and 4 (this is on the y axis)

Step-by-step explanation:

Which number line shows the correct placement of -200, 75, and -150?

Answers

Answer:

in the explanation

Step-by-step explanation:

In the number line, the left most number would be -200 as it's the lowest, the middle would be -150, as this number is in between the other two, and the right most would be 75, as it's the greatest.

Hope this helps!

Sue has a balance of $35 in your checking account she writes one check for $10 and three checks for $9 each what is her balance now

Answers

she is now in debt of $2.00
so she has -2.00 dollars in the bank

i hope this helped

Can someone explain the steps to simplify x^4/3 over x^5/6 and how to simplify 16 square root of x * x^3 * x^4 (AGAIN EXPLAIN IN SENTENCES???)

Answers

remember
(x^m)/(x^n)=x^(m-n)

(x^4/3)/(x^5/6)=
x^(4/3-5/6)=
x^(8/6-5/6)=
x^(3/6)=
x^(1/2)

second one
16 times the square root of x*x^3*x^4
first simpify parenthasees
remember
(x^m)(x^n)=x^(m+n)
(x^1)(x^3)(x^4)=x^(1+3+4)=x^8

√x^8 aka
√(x^4)^2
is x^4

16x^4 is ansre√

Multiplying polynomials
find the product
(5n+6)(5n-5)