Figure b is the answer . I am positive
Answer:
y = 2x + 5
Step-by-step explanation:
2 is the slope so it goes with the x and 5 is the y-intercept so it is either added or subtracted.
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.
Step 1: Multiply both sides of the equation by 2.
t+7=32
Step 3: Move constant to opposite side and change sign
t=32-7
Step 4: Solve for T
t=25
