joynerjaila
27.01.2021 •
Mathematics
A parabola has its focus at coordinates (2, 5/2). It has its directrix at y = 7/2. Write the equation of the parabola
in Vertex Form.
A. y = −
1
2
(x − 2)
2 + 3
B. y =
1
2
(x − 2)
2 + 3
C. y = −
1
2
(x − 2)
2 + 4
D. y = −
1
4
(x − 2)
2 +
11
4
Solved
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Ответ:
162.5cm²
step-by-step explanation:
surface area formula of triangular prism: perimeter of triangle x height
perimeter of triangle = 6.75cm + 4.3cm + 5.2cm
height = 10cm
16.25cm x 10cm = 162.5cm²