Create a right triangle with the the two legs being sides of 9 and 12...then use the Pythagorean theorem to solve
a^2 + b^2 = c^2
9^2 + 12^2 = c^2
81 + 144 = c^2
225 = c^2
Square root both sides to get c = 15 feet.
Answer:
y - 7 = -8(x - 1)
Step-by-step explanation:
We are provided with some information
We are given point (1,7)
Slope = -8
Using a point slope form formula
y - y_1 = m (x - x_1)
m = -8
y_1 = 7
x_1 = 1
Inserting the given values into the equation
y - y_1 = m ( x - x_1)
y - 7 = -8 ( x - 1) ( point slope form)
Don't confuse slope intercept form with point slope form
Slope intercept form
y = mx + C
y - point y
m - slope
x - point x
C - intercept
Point slope form
y - y_1 = m(x - x_1)
211.8 I just took the test and I had the same question I rounded it to 212 and it said it was wrong so you had to put exactly 211.8
420/3 = 140 rubies
Since they use 20 rubies you would do the total amount of rubies by 20.
140/20 = 7
