Answer: 
Step-by-step explanation:
For this exercise it is important to remember that:
1. The Addition property of equality states that:
If 
, then 
2. The Subtraction property of equality states the following:
If , then 
3. The Division property of equality states that:
If , then 
4. The Multiplication property of equality states the following:
If , then 
Then, having the following equation given in the exercise:
You need to solve for the variable "r" in order to find its value.
In order to solve for "r", you must apply the Addition property of equality adding 14 to both sides of the equation.
Therefore, you get the following solution:
Ok so you have to calculate all the areas try doing maybe it shows you the answer
The x-intercept of an equation is the value of x when y is set to be equal to zero. On the other hand, the y-intercept is the value of y when x is set to be equal to zero. From the equation,
x-intercept : <span>3x - 9y = 10.8
3x - 9(0) = 10.8
x = 3.6
y-intercept: </span>3x - 9y = 10.8
3(0) - 9y = 10.8
y = -1.2
Answer:
15x +7
Step-by-step explanation:
Like terms can be combined.
(8x +16) +(7x -9) = (8x +7x) +(16 -9) = 15x +7
The total number of ice cream cones sold was 15x+7.
Answer:
The answer is 7 sides and 2 bases.
Step-by-step explanation:
This is a seven (7) sided shape on its lateral
Then we have a top and a base making it a nine (9) altogether for Surface area.
Because it is a polygon just like a prism we only see its shape on the base when you tilt it, so the top of the net is drawn can also be drawn on its side. See attached last few pages.
We draw it on its base so we can see both the cross section is vertical and slice the heptagon. Here we can call it a vertical heptagon prism. As its on its base the height would be high to low and look like a watch on the arm whilst the arm is reaching for the door. The measurements of the bases would be 2x the height at its longest point on the actual top and base. (As long as they are not more than 2x it would represent the shape when it becomes a prism.
All the pictures may not be relevant but it helps you understand area 1/2 x 1 = 1/2 so 1/2 x 2cm = 1 and 2 x 2 = 4 for other shapes.
We cna use these measurements when showing the bases are twice the size and also label height H = 2cm and Length = 4cm
For the heptagon. The area is worked out a different way but this may help you get used to multiplying half when working with shapes.
