30/4 = 7 2/4
= 7 1/2
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Answer:sinA=8/17
Step-by-step explanation:
Using Pythagoras principle
x=√(15^2+8^2)
x=√(15x15+8x8)
x=√(225+64)
x=√(289)
x=17
SinA=opposite/hypothenus
SinA=8/17
Answer:
maximum
Step-by-step explanation:
maximum/vertex is (5,3)
line of symmetry is 5
crosses y axis at (o,-72)
crosses x axis at (4,0) and (6,0)
this the is the equation if you simplify it
-3x^2+30x-72
The correlation is positive. It is also a moderate correlation.
X=1/3 or x=-2
explanation:
Find factors of 3 and 2 which subtract to make 5.
We should realise that (3x2) - 1 = 5.
Find the cross products and subtract to get 5. Add in the signs. One of the factors must be 0.