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3 years ago

What goes in for blank? -9/10 + 3/5 - 9/10 + (blank) = -1 4/5

Mathematics

1 answer:

serious [3.7K]3 years ago

6 0

-9/10 + 3/5 - 9/10 = -1.2 and -1.2 = -1 1/5 so if we add -3/5 we get -1.8 or -1 4/5 so therefore your answer is -3/5

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Calculate the axis of symmetry in the equation Y = (x+1) (x-4)

algol [13]

Answer:

Every parabola has a turning point called the axis of symmetry,so for this question you just have to find the turning points

x turning point= -b/2a,and the y turning point is gotten by replacing the value of x in the equation

y=(x+1)(x-4)

=x^2-3x-4

a is 1,b is -3 and c is -4

x= -(-3)/2(1)

=1.5

and y=x^2-3x-4

=1.5^2-3(1.5)-4

= -6.25

therefore the axis of symmetry is (1.5,-6.25)

I hope this helps

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