Four times the square of a number increased by five times the same number

Mathematics

2 answers:

Vera_Pavlovna [14]3 years ago

7 0

If x is the number, then the answer is 4x^2 + 5x

Ludmilka [50]3 years ago

6 0

If x is the number, then the answer is 4x^2 + 5x

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DiKsa [7]

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You were given d = 10 so r = 5

Then just plug and chug

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2 years ago

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-6+8x=-38<br> What is the answer and explain how you got it step by step

Anarel [89]

-6 +8x = -38
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I did this by first adding 6 to both sides to get 8x by itself. I then divided by 8 to get x by itself. I remembered to use the - - + rule (Two negatives make a positive, a positive and a negative make a negative). Hope this helps!

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The phenomenon of bottle flipping has hit the nation. You design a machine that can randomly flip a bottle. You observe 2180 ran

krek1111 [17]

Answer:

The variable of interest is the proportion of flips that land the correct way when flipped randomly.

The necessary conditions $n\pi \geq 10$ and $n(1-\pi) \geq 10$ are present.

The 98% confidence interval for the overall proportion of bottles that land correctly when flipped randomly is (0.131, 0.167).

Step-by-step explanation:

Variable of Interest:

Proportion of flips that land the correct way when flipped randomly.

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.