Step-by-step explanation:
the perimeter is the easiest, really. we only need to add all side lengths. there is nothing else to the perimeter calculation.
so,
perimeter = 6.5 + 2.5 + 6 = 9 + 6 = 15 ft.
area is also relatively easy for right-angled triangles, because the sides that enclose the 90° angle, act also as height of the triangle to each other.
so, it is a half-rectangle, and we only need to multiply these 2 sides (not including the Hypotenuse) and divide this by 2.
area = 6×2.5/2 = 3×2.5 = 7.5 ft²
9514 1404 393
Answer:
8
Step-by-step explanation:
The external angle is half the difference of the intercepted arcs.
(2x +7) = (1/2)(78 -32)
2x +7 = 23 . . . . . simplify
2x = 16 . . . . . . . . subtract 7
x = 8 . . . . . . . . . . divide by 2
F(x)=1/3-1/21x
0=1/3-1/21x multiply both side by 21
0=7-x
X=7
Answer:
Their is a different question in the pic then the writing?
Answer: option b
Step-by-step explanation: