What is 2(9x-1)+7(x+6)=-60
1 answer:
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Answer:
See explanation
Step-by-step explanation:
The given function is
To create a table we choose some values of x and plug it into the function and solve for y.
When x=-1,
When x=0 y=0+4
When x=1, y=4+1=5
When x=2, y=6
The table looks like;
x y
-1 3
0 4
1 5
2 6
Answer:
see explanation
Step-by-step explanation:
Given M is directly proportional to r³ then the equation relating them is
M = kr³ ← k is the constant of proportion
To find k use the condition r = 4 when M = 160, thus
160 = k × 4³ = 64k ( divide both sides by 64 )
2.5 = k
M = 2.5r³ ← equation of proportion
(a)
when r = 2, then
M = 2.5 × 2³ = 2.5 × 8 = 20
(b)
when M = 540 , then
540 = 2.5r³ ( divide both sides by 2.5 )
216 = r³ ( take the cube root of both sides )
= r , thus
r = 6