Answer:
$34.88
Step-by-step explanation:
If the discount is 20%, then the sale price is 80% of the full (original) cost:
0.80($40.00) = $32.
Sam has to pay 9% sales tax on this $32. The total cost of his order would then be 1.09($32) = $34.88. If desired, you could write this as the equivalent $32 + 0.09($32).
Answer:
width=4in.
length=13in
Step-by-step explanation:
let the width of the rectangle be x
then the length will be x+9
Area= length×width
52= (x+9)x
52= x²+9x
x²+9x-52=0
x²+13x-4x-52=0
x(x+13) - 4(x+13)= 0
(x-4)(x+13)=0
x=4 or -13
dimension cannot be negative
hence x=4in
the width is 4in. and the length is 4+9=13in.
Answer:
1.) slope is 6
2.) slope is -4
4.)slope is undefined
Step-by-step explanation:
1.) For one we can use the equation y2-y1/ x2-x1
First, pick any 2 points that you want to use to plug into the equation
(0, -3) and (1, 3)
Next, plug in and solve!
3-(-3)/ 1-0= 6
The slope is 6
2.) We can use this same equation for the problem and plug in!
(-1, 5) (2,-7)
-7- 5/ 2-(-1)= -4
The slope is -4!
4.) Use the same equation and find the slope!
(8, 1) and (8, 2)
2-1/ 8-8= undefined
Because we cannot divide by a 0 the slope is undefined!
This implies that there will be
infinitely many solutions. If you plug in any value for a, you will end up with an equation that is true.
For example, let's plug in a = 0.
We can even plug a bigger number like a = 100, and it will still work. That is because it has infinitely many solutions. It's like if you have an equation like:
x = x
Any value of x will equal to x. There are infinitely many solutions to it.
Your final answer is
infinitely many solutions.
Answer:
(x+4)²+(y+3)²=25
Step-by-step explanation:
opposite of -4 is 4
x=4
opposite of-3 is 3
y=3
double the radius 5*5=25