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Pavlova-9 [17]
3 years ago
8

Josh will take 10 test in 5 weeks. How many tests will he have taken after 7 weeks?

Mathematics
2 answers:
Basile [38]3 years ago
6 0
I think you have to divide 10 by 5 which gives you 2 then multiply 2 by 7 which gives you 14. So I think he takes 14 tests in 7 weeks
Sedaia [141]3 years ago
3 0
Josh will take 25 test in 7 weeks.
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Answer:


Step-by-step explanation:

First we can determine the x value of our vertex via the equation:

x=\frac{-b}{2a}

Note that in general a quadratic equation is such that:

ax^2+bx+c

In this case a,b and c are the coefficients and so a=1, b=6 and c=13.

Therefore we can determine the x component of the vertex by plugging in the values known and so:

x=\frac{-b}{2a}=\frac{-6}{2(1)}=\frac{-6}{2}=-3

Now we can determine the y-component of our vertex by plugging in the x-component to the equation and so:

f(x)=x^2+6x+13\\\\f(-3)=(-3)^2+6(-3)+13\\\\f(-3)=4

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x=-3

Similarly, the y-component of our vertex is the minimum or maximum.  In this case it is the minimum you can determine this because a is positive meaning that the parabola will point up, and so the equation for the  minimum is:

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The range of the formula is the smallest y-value meaning the minimum y=4 and all real numbers that are more than 4, mathematically:

Range = All real numbers greater than or equal to 4.

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Answer:

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Answer:

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Step-by-step explanation:

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Answer:

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