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hjlf
3 years ago
8

Cos(45-150) exact answer

Mathematics
1 answer:
victus00 [196]3 years ago
7 0
The answer is - \frac{ \sqrt{6}- \sqrt{2}}{4}
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What is the explicit formula for the arithmetic sequence 4/5, 29/30, 17/15, 13/10?
svetoff [14.1K]

Answer:

The answer is D,

a(n) = 4/5 + 1/6(n- 1)

just took the test :)

Step-by-step explanation:

7 0
3 years ago
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The following were the recorded birth weights for babies born July 16, 2011: 8.1 lbs., 6.0 lbs., 4.7 lbs., 6.9 lbs., 5.6 lbs., 7
rodikova [14]
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3 years ago
Use technology and the given confidence level and sample data to find the confidence interval for the population mean mu. Assume
Sphinxa [80]

Answer: (1.55, 6.45)

Step-by-step explanation:

The confidence interval for population mean is given by :-

\overline\ {x}\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

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Sample size : n=41

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Standard deviation : \sigma=6.1\text{ kg}

Then, 99% confidence interval for population mean will be :_

4\pm\ (2.576)\dfrac{6.1}{\sqrt{41}}\\\\\approx4\pm2.45\\\\=(4-2.45, 4+2.45)=(1.55, 6.45)

8 0
3 years ago
What is the value of -2xy if x = -1 and y= 6?<br> A. 12<br> B. -12<br> C. 26<br> D. 8
almond37 [142]

Answer:

A. 12

Step-by-step explanation:

-2*-1=2*6=12

plz mark brainliest

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ELEN [110]
(-2x+10Y)(4X-6Y) can be simplified as -8x+-60Y because you have to combine like terms such as -2x and 4x.
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3 years ago
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