3 years ago

A chemist mixes milliliters of a solution that is acid with milliliters of a solution that is acid.

Mathematics

1 answer:

Stells [14]3 years ago

4 0

Where’s the question??

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Solve the following system. y = x 2 - 9x + 10 and x + y + 5 = 0. Enter the solution with the smaller x value first.

pochemuha

X+y+5=0
y=-x-5
If a solution exists y=y so we can say
x^2-9x+10=-x-5 add x+5 to both sides
x^2-8x+15=0 now factor
x^2-3x-5x+15=0
x(x-3)-5(x-3)
(x-5)(x-3) so x=3 and 5, using y=-x-5
y(3)=-8 and y(5)=-10
So the two solutions are:
(3,-8) and (5,-10)

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My name is Ann [436]

$\sqrt{16-x}$
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$\sqrt{8}$

Use a calculator to find the square root of 8.

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