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pogonyaev
3 years ago
7

How would you graph this function?

-30" alt="y=-2x^2-16x-30" align="absmiddle" class="latex-formula">
Mathematics
2 answers:
NNADVOKAT [17]3 years ago
7 0

Answers Attached

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blagie [28]3 years ago
4 0

Answer:

I didn't know how to put everything here because brainly spaces everything weird but here it is

Step-by-step explanation:

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Summarize the center of the data set below by determining the median.<br><br> 18, 55, 42, 57, 54, 35
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Answer: 48

Step-by-step explanation:

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Then find the numbers in the middle, 42 and 54.

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I hope this helps!

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5 0
3 years ago
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Follow the directions to solve the system of equations by elimination. 8x + 7y = 39 4x – 14y = –68 Multiply the first equation t
Leno4ka [110]

9514 1404 393

Answer:

  (x, y) = (1/2, 5)

Step-by-step explanation:

We observe that the y-terms have coefficients 7 and -14. If we want to eliminate the y-terms, we need to multiply 7 by a factor that makes it be the opposite of -14. That factor will be -(-14)/7 = 2.

After multiplying the first equation by 2, we have ...

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  • 4x -14y = -68

Adding these two equations gives ...

  20x = 10

Solving for x, we need to divide by 20:

  x = 10/20 = 1/2

Substituting this into the first equation, we get ...

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Then the solution is (x, y) = (1/2, 5).

_____

<em>Check</em>

We used the first equation to find y, so we know the x- and y-values satisfy the first equation. We need to check the result using the second equation.

  4(1/2) -14(5) = -68

  2 -70 = -68 . . . . . . . true; result checks OK

8 0
3 years ago
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