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scZoUnD [109]
3 years ago
10

What is the inverse function of d(x) = 2x - 4?

Mathematics
1 answer:
Naddik [55]3 years ago
7 0
Let d(x) = 2x - 4

Or

y = 2x - 4

We have replace x = y

x = 2y - 4

Now Isolate "y"

x + 4 = 2y

Pass "2" dividing

(x + 4) / 2 = y

y = x/2 + 2

Or

d(x)^-1 = x/2 + 2

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So we have an equation:
2w=12-4w
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Among students who graduated, what is the proportion of boys
lakkis [162]

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Step-by-step explanation:

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Can I get help please and thank you
Ipatiy [6.2K]

9514 1404 393

Answer:

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6 0
3 years ago
A shop sells chocolate, vanilla and strawberry ice creams. 45% of the ice creams sold are vanilla, and 1/4 are strawberry. What
OverLord2011 [107]

Answer:

30%

Step-by-step explanation:

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Also we know we sold 1/4 strawberry which in percent that would be 25%

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