We have to find the final price of the floor lamp after all changes in price.
If the price changes 62% Markup we will multiply previous price by 1.62
( 100% + 62% = 162% = 1.62 ). Also for 15% Markdown we will multiply it by 0.85 ( 100% - 15% = 85% = 0.85 ) and so on:
$44.50 * 1.62 * 0.85 * 1.18 * 1.20 * 0.55 = $47.72
Answer:
B. $47.72
Answer:
Just multiply x and y by the scale factor
Step-by-step explanation:
Answer:
To calculate the vertex you can use the vertex form ( i searched about the vertex and found it) but i don't know how to use it so i used another method.
The vertex is where the function inverts (y values) so it is going to be or a maximum or a minimum of the function. To calculate the min/max you derivate the function and then equal it to zero.
1) y = -3x^2 -12x -10
the derivative of y is y' = -6x -12 = -6(x+2)
y'=0 <=> -6(x+2) = 0 <=> x+2=0 <=> x=-2
y(-2) = -3(-2)^2 -12*(-2) -10 = 2
So the vertex is the point (-2,2) .
Because the slope of the equation is negative that means that the vertex is going to be the maximum , so the maximum is (-2,2) .
To find another 4 points you just have to pick values of x and replace them in the equation y = -3x^2 -12x -10 to find y.
2) y = -2x^2 -12x -16
Do the same thing we did in point 1
y'= -4x-12 = -4(x+3)
y'=0 <=> -4(x+3) = 0 <=> x+3=0 <=> x=-3
y(-3) = -2(-3)^2 -12*(-3) -16 = 2
So the vertex is the point (-3,2) .
Answer:
15/14
Step-by-step explanation:
I am assuming you meant. 3(x+1/2)
10x-6=3x+3/2
7x=3/2+12/2
7x=15/2
x=15/2*1/7
x=15/14
58*20
(58 times 20)
PEMDAS
hope this helped!
