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Nonamiya [84]
3 years ago
15

3x-4 1/2= 19 1/2 find what x=

Mathematics
1 answer:
KengaRu [80]3 years ago
7 0

Answer:

3x - 4 1/2 = 19 1/2

Step-by-step explanation:

4 1/2 + 19 1/2 = 3x

24 = 3x

x = 24 ÷ 3

x = 8

please thank my answer and mark me brainliest

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jenny got 15 pair of shoes

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Step-by-step explanation:

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Answer:

10c=h

Step-by-step explanation:

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Randomly selected students participated in an experiment to test their ability to determine when one minute​ (or sixty​ seconds)
zalisa [80]

Answer: (57.41,\ 62.19)

Step-by-step explanation:

Given : Sample size : n=40

Sample mean : \overline{x}=59.8\text{ seconds}

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Formula to find the confidence interval for population mean :-

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=59.8\pm(1.645)\dfrac{9.2}{\sqrt{40}}\\\\\approx59.8\pm2.39\\\\=(59.8-2.39,\ 59.8+2.39)\\\\=(57.41,\ 62.19)

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6 0
3 years ago
What is the equation of this circle in standard form M(2,4) N(9,4) these are coordinates across the diameter of the circle?
igomit [66]
The standard form is

(x-xo)² + (y-yo)² = r²

Where xo,yo is the center of the circumference
and r is the radius.

We find the distance between the points to determine the <span>diameter

d=sqrt ((9-2)</span>² + (4-4)²<span>) = sqrt (49) = 7

The radius of the circumference is d/2 = 7/2 = 3.5

And we can see that those points are at the same coordinate y = 4 

The center is given then by , x = (9+2)/2 = 5.5
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The equation results

(x-5.5)</span>² + (y-4)² = (3.5)²<span>

</span>
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3 years ago
I need help. I'm failing math
Alexxandr [17]

Answer:

B i believe

Step-by-step explanation:

6 0
3 years ago
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