Answer:
Step-by-step explanation:
we know that
The equation of the line in slope intercept form is equal to
where
m is the slope
b is the y-intercept
In this problem we have
substitute the given in the equation
Solve for b
subtract 18 both sides
therefore
The linear equation in slope intercept form is equal to
Answer:
No, Richard is incorrect, the current temperature is 40 degrees.
Step-by-step explanation:
4x-40=3x
4x-3x=40
x=40
18 - 20 is an equation that'll go into integers as your answer. If you subtract 20 - 18 the answer is 2. It's basically the same equation except you're going into negative numbers. 18 - 20 = -2
Answer:
10 inches
Step-by-step explanation:
The formula for the triangle area is the following:
A = b * h / 2
Where b is the length of the base side and h is the height.
So, as the height is 4 less than the base, we have that:
h = b - 4
Using this value in the area equation, we have that:
A = b * (b - 4) / 2
30 = (b^2 - 4b) / 2
b^2 - 4b = 60
b^2 - 4b - 60 = 0
Using Bhaskara's formula to solve the quadratic equation, we have:
Delta = 4^2 + 4*60 = 256
sqrt(Delta) = 16
b1 = (4 + 16)/2 = 10
b2 = (4 - 16)/2 = -6 (negative value does not fit for this problem)
So the length of the base is 10 inches.
Answer:
I think it is the last one .
Step-by-step explanation:
Hope this helps!
Sorry if I'm wrong.
