Answer:
r = 6 3/23
Step-by-step explanation:
-128+138r=718
add 128 to each side
-128+128+138r=718+128
138r = 846
divide each side by 138
138r/138 = 846/138
r = 846/138
divide top and bottom by 2
r = 423/69
divide top and bottom by 3
r = 141/23
change this to a mixed number
r = 6 3/23
20x+30y= c(total cost of money)
Part B: 20(10)+5(30)
200+150=$350
Answer:
Step-by-step explanation:
Given
Points (2,3) and (-3,8)
Required
Determine the gradient
Gradient (m) is calculated by dividing the change in y values by the change in x values.
i.e.
Where:
becomes
<em>Hence, the gradient is -1</em>
Answer:
6
Step-by-step explanation:
this should be the correct answer!
Answer:
Step-by-step explanation:
complex zeros always occur in pairs.
so zeros are -3,4-i,4+i
so fourth zero also intersects x-axis.
Hence there are two x-intercepts only.