Answer:
y = -4/5x + 2/5
Step-by-step explanation:
Slope form of an equation is y = mx + b
Sub in x and y coordinates and slope then isolate for b
-2 = -4/5(3) + b
-2 = -12/5 + b
-2 + 12/5 = b
b = -10/5 + 12/5
b = 2/5
Sub in b and the slope into the slope form equation
y = (-4/5)x + 2/5
Hi! Hope this helps, and if it does, please mark brainliest!
Answer:
y = 43 and x = 90
Step-by-step explanation:
We know that a triangle is 180 degrees (each side equals 180 since they are their own triangles) We will focus on the left triangle. Since x is a right angle, it is 90 degrees. Since there is a slash across the two sides of the main triangle, that means both sides are equal. This means that the bottom left angle, the one above b, is equal to 47 degrees. That means we know two angles out of 3. For the sake of simplicity, the bottom left angle, the one above b, is point z. So point z is 47, and x is 90, added they are 137. Subtract that from 180, you will get 43. 43 is y.
Answer:
x=19
Step-by-step explanation:
In order to solve for x, we want to add the equations to equal 180.
6x+12+3x-3=180
9x+9=180
9x=171
x=19
3 feet 8 inches converted to inches is 3x12+8=44inches
44inches times 4 pieces is 176 inches.
176 inches converted back to feet and inches is 176/12=14 feet 8 inches so he would need 15 feet of board
