Answer:

Step-by-step explanation:
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mark it as a brilliant answer
Answer: first answer choice (1/3) (p+45)
Step-by-step explanation:
to do this, factor out 1/3 from each element
so divide 1/3 p by 1/3 and 15 by 1/3
(1/3 p) / (1/3 ) = p
15 / (1/3) = 15 * 3 = 45
now put 1/3 outside of the parentheses
(1/3) (p+45)
He is not correct because when you multiply 30 by 3 1/3 you get 100, 24x 3 1/3= 80, not 70.
Hope this helps :)
Answer:
5.5
Step-by-step explanation:
Solve by subtracting the two numbers:
-12.4 - (-6.9)
Note that two negative signs = one positive sign. Simplify:
-12.4 - (-6.9)
-12.4 + 6.9
Simplify. Combine the terms:
-12.4 + 6.9 = 6.9 - 12.4 = -5.5
However, note that distance cannot be a negative number, so your answer is positive 5.5
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equation for the perpendicular Bisector of the line segment whose endpoints are (-9,-8) and (7,-4)
Perpendicular bisector lies at the midpoint of a line
Lets find mid point of (-9,-8) and (7,-4)
midpoint formula is


midpoint is (-1, -6)
Now find the slope of the given line
(-9,-8) and (7,-4)


Slope of perpendicular line is negative reciprocal of slope of given line
So slope of perpendicular line is -4
slope = -4 and midpoint is (-1,-6)
y - y1 = m(x-x1)
y - (-6) = -4(x-(-1))
y + 6 = -4(x+1)
y + 6 = -4x -4
Subtract 6 on both sides
y = -4x -4-6
y= -4x -10
equation for the perpendicular Bisector y = -4x - 10