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3 years ago

-OL 18 3 * 1-10 - 4 19 9 10 LIA EP 1000

Mathematics

1 answer:

Deffense [45]3 years ago

5 0

Answer:

The asnwer is 19

Step-by-step explanation:

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A number has 2 tens and 15 ones. Write the number in words.

Crank

Two tens fifteen ones

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3 years ago

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masha68 [24]

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4 years ago

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iren2701 [21]

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Step-by-step explanation:

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3 years ago

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trapecia [35]

Answer:

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Step-by-step explanation:

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3 years ago

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Enter the coordinates of the vertex of the function f(x) = x2 + 4x - 7

elixir [45]

Given the equation of the function:

$f(x)=x^2+4x-7$

The given function represents a parabola

We will make a complete square to find the coordinates of the vertex

The coefficient of x = 4

Half the coefficient of x = 2

Square it give = 4

So, we will add and subtract 4

$\begin{gathered} f(x)=x^2+4x+4-4-7 \\ f(x)=(x^2+4x+4)-11 \\ f(x)=(x+2)^2-11 \end{gathered}$

Compare the last equation with the vertex form of the parabola

$f(x)=(x-h)^2+k$

So, h = -2, k = -11

So, the answer will be the coordinates of the vertex = (-2, -11)

6 0

1 year ago