Answer:
0
Step-by-step explanation:
All of the lengths of both triangles are exactly the same, therefore no change has occurred and the scale factor is 0
Step-by-step explanation:
Answer:
k = 2/5
Step-by-step explanation:
from the question , we have that Suppose y is directly proportional to x
mathematically'
y ∝ x
y = kx ................................................................. where k is the constant of proportionality
given that y = 8, x = 20 where k = ?
so from,
y = kx
we are going to make k the subject of the formula by getting rid of x away from k.
y = kx
divide both sides by x
y/x = kx/x
y/x = k
therefore k = y/x
k = 8/20
k = 2/5
therefore the value of k which is the constant of proportionality in this expression is given to be 2/5
Answer:
now
Step-by-step explanation:
that is really hard but bo worries well yes in order to now the way you might not know the eat blsken
Answer:
=================================================
Work Shown:
x^2+y^2 = r^2
(8)^2+(-7)^2 = r^2
113 = r^2
r = sqrt(113)
The distance from (0,0) to (8,-7) is exactly sqrt(113) units.
This is the exact length of the hypotenuse of the right triangle.
Next, we do the following steps:
Side note: cosine is positive in quadrant Q4.