Answer:
and?
Step-by-step explanation:
Perpendicular lines refers to a pair of straight lines that intercept each other. The slopes of this lines are opposite reciprocal, meaning that it's multiplication is -1.
On this case they give you the equation of a line and a point, and is asked to find the equation of a line that is perpendicular to the given one, and that passes through this point.
-2x+3y=-6 Add 2x in both sides
3y=2x-6 Divide by 3 in both sides to isolate y
y=2/3x-6/3
The slope of the given line is 2/3, which means that the slope of a line perpendicular to this one, needs to be -3/2. Now you need to find the value of b or the y-intercept by substituting the given point into the formula y=mx+b, where letter m represents the slope.
y=mx+b Substitute the given point and the previous slope found
-2=(-3/2)(6)+b Combine like terms
-2=-9+b Add 9 in both sides to isolate b
7=b
The equation that represents the line perpendicular to -2x+3y=-6 and that passes through the point (6,-2), is y=-3/2x+7.
The right answer is Option C.
Step-by-step explanation:
Given,
Smartphone sold = 1300000 units
Smartphones returned = 15%
No. of smartphones returned = 15% of smartphones sold
No. of smartphones returned =
No. of smartphones returned = 0.15*1300000 = 195000 units
As sales and return rate remains same, therefore,
Returns in 6 months = 6*per month returns
1170000 units will be returned to the company during 6 months.
The right answer is Option C.
Keywords: multiplication, return rate
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The descent of the balloon would take 14 minutes
To find the answer to this problem, take the elevation change (315) and then divide it by the rate of descent (22.5)
