Answer:
<h2>
y = 16/25x³</h2>
Step-by-step explanation:
If y is inversely proportional to a^3, this is expressed as;
y∝1/a³
y = k/a³ where k is the proportionality constant
Given a=2, y=10, then 10 = k/2³
k = 10*2³
k = 80
Substituting k = 80 back into the formula;
y = 80/a³ ............. 1
Similarly, if a is directly proportional to x, then a ∝ x i.e a = kx
If x=4, a=20 then;
20 = 4k
k = 20/4
k = 5
Substituting k = 5 back into the formula;
a = 5x ....... 2
Substitute equation 2 into 1;
y = 80/a³
y = 80/(5x)³
y = 80/125x³
y = 16/25x³
<em>Hence the formula for y in terms of x is y = 16/25x³</em>
<em></em>
<span>5, -10, 20, -40, 80,
the pattern is (n*-2)
-160, 320, -640, 1280, -2560, 5120, -10240, 20480, -40960, 81920.
81,920 is your answer.</span>
Answer:
(From left to right) 2, 4, 6, 8.
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your answer is line plot D.
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What do you mean "how do solve" ?????
Step-by-step explanation: