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Whitepunk [10]
3 years ago
11

{15÷[(6+9)÷5]+3}= show work please

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
8 0
PEMDAS come on boi

6+9 = 15
15/5 = 3
15/3 = 5
5 + 3 = 8

8

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Find f(-3) if f(x) = x 2.<br><br> -9<br> -6<br> 6<br> 9
Stella [2.4K]
The answer would be -6 as far as I know

6 0
3 years ago
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What is the justification for each step in the solution of the equation?
Alexandra [31]

For this case we have the following equation:

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5 0
3 years ago
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The following function represents the profit P(n), in dollars, that a concert promoter makes by selling tickets for n dollars ea
Gre4nikov [31]
A) zeroes

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Extract common factor:

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Factor (find two numbers that sum -10 and its product is 21)

P(n) = -250(n - 3)(n - 7)

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Then n = 3 and n = 7 are the zeros.

They rerpesent that if the promoter sells tickets at 3  or 7 dollars the profit is zero.

B) Maximum profit

Completion of squares

n^2 - 10n + 21 = n^2 - 10n + 25 - 4 = (n^2 - 10n+ 25) - 4 = (n - 5)^2 - 4

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C) Axis of symmetry

Vertex = (h,k) when the equation is in the form A(n-h)^2 + k

Comparing A(n-h)^2 + k with - 250(n - 5)^2 + 1000

Vertex = (5, 1000) and the symmetry axis is n = 5.



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3 years ago
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90 grandchildren

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4 0
3 years ago
Can anyone help me out with this please
musickatia [10]
First, let's factor the equation to make it easier to solve for the intercepts:

f(x) = x² + 12x + 32
f(x) = (x + 8)(x + 4)

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x = -8, -4

Similarly, to find the y-intercept, set the x values to 0:

f(x) = (0 + 8)(0 + 4)
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f(x) = 32

*Note that you can see 32 as the y-intercept in the parabola's original equation
4 0
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