Answer:
-5.25 + 3.5 = -1.75
Step-by-step explanation:
This can technically be done two ways. The first is the most simplified, and the second less simplified, and less likely to get the best grade.
1.So long as you don't have to order it chronologically, you should be good with this one: 
2.This one IS chronological (she got a correct answer, then a wrong answer), but you can NOT simplify it, because it asks for an addition equation: 
The best option is probably #1
While it says they are joined, we will have to solve them as seperate shapes then add the area at the end.
Since we have a half circle and a triangle, the formulas for the areas are as follows
Half-Circle
it is the regular circle formula, but divided by 2, since it is half the size of a regular circle
(pi*r^2)/2
Triangle
it is the formula for the area of a triangle, being base times height divided by 2
(b*h)/2
Plug in the numbers into the appropriate variables, then add. you should get a total area of 49.274 ft^2. Then you just multiply the final area by the $1.50 to get the cost of the mini gold course.
4-(6x + 5) = 7 - 2(3x + 4)
Distribute: 4 - 6x - 5 = 7 - 6x - 8
Combine like terms (constants): -1 - 6x = -1 - 6x
Add 1 to both sides: -6x = -6x
Divide both sides by -6: x = x
Hope this helps!
Answer:
slope is 0
Step-by-step explanation:
The slope of any horizontal line is zero, 0.
May we have details so we know how to answer
