Answer:
Simplified this will be -9x divided by x^2+8
Step-by-step explanation:
-6+3x divided by x^2-6x+8
Use communicative property to simplify like terms
(-6x, 3x, -6x are all simplified terms that when added up together make -9x)
-9x divided by x^2+8
Answer:
0.0416
Step-by-step explanation:
Given :
Sample size, n = 300
Sample mean, x = 35.5
Population mean, m = 35
Standard deviation, s = 5
The test statistic :
Zstatistic = (x - m) / s/sqrt(n)
Zstatistic = (35.5 - 35) / 5/sqrt(300)
Zstatistic = 0.5 / 0.2886751
Zstatistic = 1.732
Using the p value calculator from Zstatistic :
One tailed P value at 95% confidence interval is : 0.0416
Area of a circle is pi multiplied by radius squared. If radius is a, then area is pi times a squared
First setup the system of equations for the given case.
Let sandwich=x
and delivery fee =y
Equations are:
4x+y=33 Equation 1
8x+y=61 Equation 2
Subtract equation 1 from 2.
4x=28
x=7
Now substitute value of x in equation 1.
4(7)+y=33
28+y=33
y=5
So cost of single sandwich=$7 and Delivery fee=$5
Now cost of 12 sandwiches:
12x+y=85
Put y=5
12x+5=85
12x=80
x=6.67 which is less than 7. So, They are not able to get 12 sandwiches for $85.
There are 12 inches in one foot:
1 ft = 12 in
We want to find how many feet are in 5000 inches:
x ft = 5000 in
Set up a proportion:
1/12 = x/5000
Cross multiply:
12x = 5000
Divide by 12:
x is about 416.67 feet.
