The First one is: x = 5/2 or x = -7/2
The Second one is: x = 62/7 or x = -20/7
The Third one is: x = -2/3 or x = -4
Answer:
Let the number of popcorn be x and the number of drinks be y, then according to the question we have the following equation
.................> linear equation
To sketch the graph first we need to find two points on it.
EXAMPLE
put x=0, we get y=10
put y=0, we get x=6
Thus, we have points (0,10) and (6,0), now sketch a line through it .
Thus in the graph x - axis represents the number of popcorn and y axis represents the number of drinks.
The slope of the graph is
Step-by-step explanation:
Check the picture below
the angle is in degrees, thus, when taking the sine, make sure your calculator is in Degree mode
Answer:
(C) multiplication property of equality
Step-by-step explanation:
The area of a circle is pie r squared. so you are going to want to find the area of both circles and then because the middle of the disk is empty space, you will subtract the middle area from the bigger area.
first, find the radius. The radius is the diameter divided by 2. So it is 6cm for the big circle. Then in the area equation the radius is squared so you get 36cm and then to get the final area you multiply by pie. (i don't have a calculator with me sorry).
next, you want to find the area of the smaller circle. Do the same process and use the equation. You should get 0.5625 times pie.
Then the last step is taking 36cm times pie divided by 0.5625 cm times pie and you get your answer