Answer:
-7
Step-by-step explanation:
To add a positive number and a negative number follow these steps.
1. Ignore the signs and consider both numbers positive. You have 5 and 12.
2. Subtract the smaller number from the larger number. If the numbers are equal, subtract one number from the other. In this case, you have 12 - 5 = 7.
3. The sign of the answer is the same sign as the larger positive number's original sign. Here, the larger positive number is 12. 12 was originally -12, a negative number, so the final answer is negative. (5) + (-12) = -7
Answer: -7
Answer:
8 = x
Step-by-step explanation:
all three sides are equal, so it is an equilateral triangle
if it is an equilateral triangle, each angle is 180/3 = 60 degrees
therefore
60 = 7x+4
subtract 4 from each side
60-4 = 7x+4-4
56 = 7x
divide by 7 on each side
56/7 = 7x/7
8 = x
7.5-3.25=4.25 tons.
The truck weights 4.25 tons.
Check with other answers, although I'm pretty sure its correct.
Heart if helpful :D
Rate of change is the slope.
6x - 7y = 21
Convert to slope-intercept form(y = mx + b):
Subtract 6x to both sides:
-7y = -6x + 21
Divide -7 to both sides:
y = 6/7x - 3
Now it's in the form of y = mx + b, where 'm' is the slope. So the slope here is 6/7.
y = 2x - 2
This is already in slope-intercept form, so the slope here is 2.
For function C, take any two points and plug them into the slope equation.
m = y2-y1/x2-x1
(2, 7)
(3, 1)
m = (1 - 7)/(3 - 2)
m = -6/1
m = -6
So the slope of function C is -6.
(1, 2) and (-1, -4)
m = y2-y1/x2-x1
m = (-4 - 2)(/(-1 - 1)
m = -6/-2
m = 3
So function D has the highest rate of change.
*** Function C and D information based on the comments below ***