Answer:
Step-by-step explanation:
p(x)=7x+20
p=7x/x + 20/x
answer p=7+20/x
I hope its helpful.
Since it's normally distributed, we can apply the emperical rule. The middle 95% will be within two standard deviations of the mean, so that means:
18-2(1.5), 18+2(1.5)=15,21
So we want the first option.
Answer:
Step-by-step explanation:
Are there any choices?
2(4x+1)
8x+2
You can solve this easily by using Pascal's Triangle (look that up if need be).
Here are the first four rows of P. Triangle:
1
1 1
1 2 1
1 3 3 1
example: expand (a+b)^3.
Look at the 4th row. Borrow and use those coefficients:
1a^3 + 3 a^2b + 3ab^2 + b^3
Now expand (4x+3y)^3:
1(4x)^3 + 3(4x)^2(3y) + 3(4x)*(3y)^2 + (3y)^3
Look at the 2nd term (above):
3(4x)^2(3y) can be re-written as 144x^2y.
The coeff of the 2nd term is 144. Note that (4)^2 = 16
Answer:
See Explanation
Step-by-step explanation:
Required
Determine any equation where n = 6
Add n to both sides
<em></em>
<em> ----- This is 1 equation</em>
Multiply both sides by n
<em></em>
<em> ----- This is another</em>
<em></em>
Add 5n to both sides
<em></em>
<em> ---- This is another</em>
Subtract 10 from both sides
<em></em>
<em> --- This is another</em>
<em>You can have as many equations as possible</em>
