Answer:
The answer is D.
Step-by-step explanation:
We have 3 interior angle with two of them being 30, and the total is 180 so 180-30-30=120.
The formula for finding the volume of a cone is V = 1/3 x pi x r^2 x h. Using the information given, you would have the following problem to calculate: 1/3 x 3.14 6 x 6 x 18. The volume is approximately 678.24 cubic cm or 216 pi cm^3. You would give you answer as V = 216 pi cm^3.
Answer:
Step-by-step explanation:
The equation of a quadratic function in vertex form is given by:
Where (h,k) is the vertex.
It was given in the question that the vertex of the parabola is (-1,4).
When we substitute the vertex into the formula we get:
The parabola also passes through (4,19) hence it must satisfy its equation.
We divide both sides by 25 to get:
Hence the quadratic function is:
The answer is D,I might be wrong tho
Answer:
parallel : (b) and (g)
perpendicular : (d) and (f)
Step-by-step explanation:
straight line equation : y = mx + c
Lines that are parallel have the the same gradient(m),
(b) and (g) are parallel, both of them has m= 1/2
Lines that are perpendicular will have the product of their
gradient(m) equal to -1. So, m1 × m2 = -1
(d) and (f) are perpendicular, because : -4 × ¼ = -1
Hope I was able to help:))
