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andrew-mc [135]
3 years ago
14

8xsquared +5x -2xsquared+3x

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
5 0
8x^2 + (-2) x^2=6x^2
5x+3x=8x
6x^2+8x
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Each year, all final year students take a mathematics exam. It is hypothesized that the population mean score for this test is 8
drek231 [11]

Answer:

95% Confidence interval:  (96.06,103.94)

Step-by-step explanation:

We are given the following in the question:

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z_{critical}\text{ at}~\alpha_{0.05} = 1.96

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(96.06,103.94) is the 95% confidence interval for  the population mean test score.

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3 years ago
4) Benny got fast food for lunch. Benny paid $2.71 on soup and $4.03 on a hamburger with a
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Benny got $3.26 back from his purchase
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What is the quotient of the complex number 4-3i divided by its conjugate?
bazaltina [42]

9514 1404 393

Answer:

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Step-by-step explanation:

Multiply numerator and denominator by the conjugate of the denominator.

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_____

<em>Additional comment</em>

If the original number is A∠β, the ratio is 1∠(2β), the square of the unit vector in the same direction as the original.

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3 years ago
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