Answer:
We save 46.80 by buying the shoes at SuperSports
Step-by-step explanation:
Super Sports
We get 20 % off, which means we pay 80%
72.50 * 80% = 72.50*.80 = 58
Each pair of shoes will cost 58 before tax
We purchase 12 pairs
12 *58 = 696
Tax costs 6.5%
tax = cost & rate = 696 *.065 =45.24
The total cost = cost + tax =696+45.24
=741.24
Double Dribble
Shoes cost 54.75
Processing fee = 54.75 *9% = 54.75 *.09 =4.93
New cost = 59.68
Shipping=5.99
Cost = new cost plus shipping = 59.68+5.99=65.67
We are buying 12 pair
12*65.67=788.04
The difference is 788.04-741.24 =46.8
We save 46.80 by buying the shoes at SuperSports
I'm not Totally sure but I'm pretty sure its B<span />
The formula for the standard error is this:
σM = σ / √N
where
σM is the standard error
σ is the standard deviation
N is the number of samples
So,
σM = 0.45 / √50
σM = 0.0636 or 6.36%
The standard error is 0.0636
I'll do the first one to get you started
The equation y = x^2+16x+64 is the same as y = 1x^2+16x+64
Compare that to y = ax^2+bx+c and we see that
a = 1
b = 16
c = 64
Use the values of 'a' and b to get the value of h as shown below
h = -b/(2a)
h = -16/(2*1)
h = -8
This is the x coordinate of the vertex.
Plug this x value into the original equation to find the corresponding y value of the vertex.
y = x^2+16x+64
y = (-8)^2 + 16(-8) + 64
y = 0
Since the y coordinate of the vertex is 0, this means k = 0.
The vertex is (h,k) = (-8, 0)
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So we found that a = 1, h = -8 and k = 0
Therefore,
f(x) = a(x-h)^2 + k
f(x) = 1(x-(-8))^2 + 0
f(x) = (x+8)^2
is the vertex form
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<h3>Final answer to problem 1 is f(x) = (x+8)^2 </h3>
Since they both have the same variable, you can add them, 5x+9x is 14x
