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Use Pythagoras
l^2 = a^2 + b^2
A = (7,9)
& B= (3,12)
NB 'A' & 'B' are NOT the same as 'a' & 'b' . Each is just a label,
Hence l^2 = (7-3)^2 + (9 - 12)^2
l^2 = 4^2 + (-3)^2
l^2 = 16 + 9
l^2 = 25
l = sqrt(25)
l = 5 The answer!!!!!
What else can I help you with?
What is the length of AB 3x?
The length of AB is given as 3x, which means that it is a variable length dependent on the value of x. To determine the actual length, you would need to know the value of x. Once x is specified, you can multiply it by 3 to find the length of AB.
If AB contains the points 6 -2 and -3 16 what is the slope of a line perpendicular to AB?
0.5
If the measure of angle A is 30° and AC=18,find the length of AB?
36/√3
Why does b times ab equal ab squared and not equal ab plus b squared?
b*ab = ab2 Suppose b*ab = ab + b2. Assume a and b are non-zero integers. Then ab2 = ab + b2 b = 1 + b/a would have to be true for all b. Counter-example: b = 2; a = 3 b(ab) = 2(3)(2) = 12 = ab2 = (4)(3) ab + b2 = (2)(3) + (2) = 10 but 10 does not = 12. Contradiction. So it cannot be the case that b = 1 + b/a is true for all b and, therefore, b*ab does not = ab + b2
If line ab contains points 4 19 and -3 5 what is the slope of a line perpenduiclar to lineab?
negative 1/2
If a (7 9) and b (3 12) what is the length of ab?
Using the distance formula the length of ab is 5 units
If A (7 9) and B (3 12) what is the length of?
Using the distance formula the length of ab is 5 units
The slope of line ab is 3 what is the slope of line CD if CD is parallel to ab?
3
What is the measure of line segment AB if A is -5 and B is -3?
-2
If A equals 7 9 and B equals 3 12 what is the length of line AB?
We suspect that 'A' is not equal to 7 9, but that (7, 9) arethe coordinates of 'A'. Same for 'B'.If that's true, then the two points are 5 units apart.
If line AB contains the points 4 19 and -3 5 what is the slope of a line perpendicular to AB?
-1/2 or -0.50
If A (00) and B (63) what is the length of ab?
The length is 3*sqrt(5) = 6.7082, approx.
If A (-1 -3) and B (11 -8) what is the length of ab?
h
If AB contains the points 6 -2 and -3 16 what is the slope of a line perpendicular to AB?
0.5
If the measure of angle A is 30° and AC=18,find the length of AB?
36/√3
If a equals negative 1 -3 and b equals 11 -8 what is the length of AB?
If you mean endpoints of (-1, -3) and (11, -8) then the length works out as 13
What is the length in units of ac if abc is a right triangle with the length of ab is 6 units and the length of cb is 3 units?
Use Pythagoras' theorem to find the length of the 3rd side
