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Blizzard [7]
3 years ago
9

What is the solution to the following system of equations?

Mathematics
1 answer:
Vinvika [58]3 years ago
6 0
The answer is (1,-10)

You solve this by equating the two equations:
-x2 -5x -4 = -x2 +9x -18
-14x = -14
x =1

You then substitute 1 to either of the equations to find y:
y = -(1)2 -5(1) -4
y = -10

Therefore, the solution is (1,-10)
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Need help with these questions plz it would mean a lot :)
zhuklara [117]

Answer:

Awesome I actually remember this haha

Step-by-step explanation:

So first, find -2 and go down to it and put a dot. Then I would go up 7 and over 2 to the left and put a dot. On number 2, I would go up 3 (because it's a positive) and then put a dot. And for -6x, make it into slope intercept form, or -6 over 1x. So it should look like this; -6/1x. Then I would go down -6 from the dot where you marked 3 at, and over to the right 1 because you already used your negative on the 6. And I always drew arrows, to make sure they wee straight lines. I really hope this helps and is right! Good luck!

8 0
3 years ago
Help please <br> 6. Solve for x.
ioda

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6 0
3 years ago
A game is played using one die. if the die is rolled and shows a 2, the player wins $45. If the die shows any number other than
miskamm [114]

Answer:

The game's expected value is of -$1.5.

Step-by-step explanation:

Expected value:

Probability of each outcome multiplied by the outcome.

One out of 6 sides is 2:

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5/6 probability of the player losing $9. So

E = 36\frac{1}{6} - 9\frac{5}{6} = \frac{36 - 45}{6} = -\frac{9}{6} = -1.5

The game's expected value is of -$1.5.

5 0
3 years ago
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