The surface area of this prims is found by adding the area of all the faces. To find the area of the rectangles the formula is length times width, and to find area of a triangle the formula it is length times width divided by two.
X= -2/7
y= 7
14(-2/7) + 4(7)
-28/7 + 28
-4 + 28 = 24
Whenever you add or subtract fractions you have to have the denominators the same so that the numerator is of the same value system.
For example you have 8/16 - 8/32
If you were you to subtract it without changing denominators to the same it would be equal to zero but when you change them to the same denominator
16/32 - 8/32 then the answer would be 8/32.
Answer:
X-intercepts: (-3,0) and (5,0)
Y-intercept: (0,-15)
Step-by-step explanation:
x^2 - 2x - 15
(x + 3) (x -5)
x +3 = 0
x = -3. (-3, 0)
x - 5 = 0
x = 5. (5, 0)