Answer:
Step-by-step explanation:
This triangle is a 45-45-90 triangle.
By using the image I posted, we can find x easily.
So, we have as one of the sides.
They hypotenuse, which is x is just
Simplify and we get x =
Does anyone know the answer?
1 answer:
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Answer:
y=x -1
Step-by-step explanation:
y=mx+c
y=x +c
substitute (-6;2)
2=(-6)+c
2=3+c
2-3=c
c=-1
Answer:
Slower speed = 9 mph
Step-by-step explanation:
Let the initial speed (slower speed) = s mph
Speed 's' =
s = -------(1)
If the cyclist increases the speed by 3 mph then the final speed = (s + 3) mph
He can reduce the time 't' by 10 minutes ( hours)
Now, (s + 3) =
s + 3 = --------(2)
Substitute the value of 's' from equation (1) to the equation (2).
6t² - t = 2
6t² - t - 2 = 0
6t² - 4t + 3t - 2 = 0
2t(3t - 2) + 1(3t - 2) = 0
(2t + 1)(3t - 2) = 0
t = hours
But the time can't be negative.
Therefore, t = hours is the answer.
From equation (1),
s =
s = 9 miles per hour.
Slower speed = 9 mph is the answer.