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schepotkina [342]
4 years ago
12

What is 42/66 written in lowest terms?

Mathematics
1 answer:
SSSSS [86.1K]4 years ago
8 0

Answer:

\frac{7}{11}

Step-by-step explanation:

By lowest terms, it means to simplify. You can do so by dividing the fraction by a common factor, which in this case, is 6:

\frac{42}{66} ÷ \frac{6}{6} =

\frac{7}{11}

The fraction \frac{7}{11} cannot be simplified further, so this is the final answer.

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What will happen to the ratios as you increase the number of sides of the regular polygon?
earnstyle [38]

Answer: increase

Step-by-step explanation:

Number of sides of the polygon, The number of sides of a regular polygon and the measure of the exterior angle are inversely proportional. <em><u>As one quantity increases, the other decreases and vice versa.</u></em>

4 0
3 years ago
Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i
Pavlova-9 [17]

Answer:

\bar X = \frac{Lower +Upper}{2}

\bar X= \frac{1.9+3.3}{2}= 2.6

And the margin of error with this one:

\bar X = \frac{Upper-Lower}{2}

ME = \frac{3.3-1.9}{2}= 0.7

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean \mu. And we can estimate this parameter with a confidence interval given by this formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

\bar X = \frac{Lower +Upper}{2}

\bar X= \frac{1.9+3.3}{2}= 2.6

And the margin of error with this one:

\bar X = \frac{Upper-Lower}{2}

ME = \frac{3.3-1.9}{2}= 0.7

7 0
3 years ago
Write a real world situation to explain -$15&lt;$7
Ronch [10]
Jeff has -15$ his gf faith gives him 7. 
5 0
3 years ago
The second derivative of acos(kx) ​
Shkiper50 [21]
F’(x)= -akxsinkx

F’’(x)= -a(kx)^2coskx

I’m really sorry if the answer turned out wrong but I tried my best!
8 0
2 years ago
13501 rounded to nearest 10000
Shtirlitz [24]
14,000 is the correct answer
5 0
3 years ago
Read 2 more answers
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