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brilliants [131]
3 years ago
6

Simplify the expression below: (3k2 – 2k + 5) - (2k2 – 5k + 1)​

Mathematics
1 answer:
Minchanka [31]3 years ago
8 0

Answer:

(3k² - 2k + 5) - (2k² - 5k + 1)

k² + 3k + 4 is the answer in simplify this expression

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How do I find 16% of 575
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because im god and god is good and 9 x 10 is 99999

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Each cube in this figure measures 1 centimeter on each side.
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144

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Find the ratio of miles to hours and the unit rate of Kiley’s initial car ride to the airport.
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how fast is she going and how far away is the airport

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Brianna received an overall IQ score of 117 on the Wechsler Scale. This means that Brianna has scored approximately____________
Tresset [83]

Using the normal distribution, it is found that the correct option is:

  • D. 1; 100

In a <em>normal distribution</em> with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.

In this problem:

  • The mean on the Wechsler Scale is of 100, hence \mu = 100.
  • The standard deviation is of 17, hence \sigma = 17.
  • Brianna had an score of 117, hence X = 117

Then:

Z = \frac{X - \mu}{\sigma}

Z = \frac{117 - 100}{17}

Z = 1

Hence, the option d is correct.

To learn more about the normal distribution, you can check brainly.com/question/24663213

7 0
3 years ago
IF YOU HELP ME ILL GIVE YOU A MILLION BUCKS.
Len [333]

Answer:

Here it is solved for rate:

log(1 + rate) = {log(total) -log(Principal)} ÷ Years

Let's work through your example:

log(1 + rate) = {log(6,680) -log(5,000)} / 6

log(1 + rate) = (3.8247764625 -3.6989700043) / 6

log(1 + rate) = 0.020967743

If we raise 10 to the 0.020967743 power

10^0.020967743  it produces 1 plus the rate

1 plus the rate = 10^0.020967743 = 1.0494644773

There fore the rate = .0494644773 which equals

4.94644773 per cent

Source:  https://www.1728.org/compint2.htm

Step-by-step explanation:

5 0
3 years ago
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