Let the number x.
Then the number divided by 2 gives
Subtract 3.8 from the quotient gives
Hence,
x = 21.6
A box contains 100 colored chips; some are violet and some are red. Wilson chooses a chip at random, records the color, and plac
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The answers to the question are are the equations
y = 0.08x²-1.6x+13
y = 0.08(x-10)²+5
<h3>How to solve for the system of equations</h3>David starts at (20, 13) and skates along a path that can be modeled by a quadratic function with a vertex at (10, 5).
Vertex form of quadratic function is
y =
13 = a(x-10)²+5
let x = 20
a(20-10)²+5
13 = 100a + 5
take like terms
13 - 5 = 100a
8 = 100a
divide through by 100
a = 0.08
hence the equation would be
y = 0.08(x-10)²+5
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By definition of absolute value, if , then
, so
On the other hand, if , then
, and