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Sergio039 [100]
3 years ago
12

Spinning an odd number and flipping heads.

Mathematics
1 answer:
Daniel [21]3 years ago
4 0

Answer:

what

Step-by-step explanation:

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What are the solutions of the equation (2x + 3)^2 + 8(2x + 3) + 11 = 0? Use u substitution and the quadratic formula to solve.
iris [78.8K]
U=2x+3, x=u/2-3/2
u^2+8u+11=0
u1=(-8+sqrt(64-44))/2=-4+sqrt(5)
u2=-4-sqrt(5)
x1=u1/2-3/2=-7/2+sqrt(5)/2
x2=u2-3/2=-7/2-sqrt(5)/2

7 0
3 years ago
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QUESTION ATTACHED PLZ HELP NEEDED
saw5 [17]
Y = a (x + 3)² - 1

Let's take the point (-1;3)

3 = a ( -1 + 3)² - 1
3 = 4a - 1
4a = 4

Therefore a = 4/4 = 1

(x+3)² - 1
= x² + 6x + 9 - 1
= x² + 6x + 8

The answer would be y = x² + 6x + 8.

Hope this helps !

Photon
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3 years ago
Can you answer this pls ​
Gnoma [55]

just download MATH PAPA app, it will help you solve any hard mathematical problems, I see that your answers are there.

7 0
3 years ago
What is 50% of 18.3 plus 18.3% of 50?
agasfer [191]

Answer:

50% of 18.3 = 9.15

18.3% of 50 = 9.15

9.15 + 9.15 = l8.3

3 0
2 years ago
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Divide using synthetic division, and write a summary statement in fraction form 2x^3-3x^2-5x+4/x-2
Tems11 [23]
I’m not sure if this is how you’re supposed to write the summary statement, but I got the answer of (2x+3)(x-1)(-2/(x-2)) (see photo to see my work

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3 years ago
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