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3 years ago

If sec (x) = 27/26 (in Quadrant-I), find sin (2x) =

1 answer:

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The answer to this question is:

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Irina-Kira [14]

Answer:

B -- scalene acute triangle

Step-by-step explanation:

None of the measures are >90 degrees. All of the lengths and angles are different sizes. This means that the triangle is an acute scalene triangle

8 0

2 years ago

Leni [432]

Y-b=mx-am
y-b-mx=am
(y-b-mx)/m=a

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3 years ago

mote1985 [20]

Answer:

The correct answer is option 'a' : 120 is more than 2.5 standard deviations above the expected value.

Step-by-step explanation:

For an exponential distribution we have

The expected value μ = 80

No of trails n = 200

Thus we have

$p=\frac{80}{200}=0.4$

The deviation is related to expected value and probability as

$\sigma =\sqrt{np(1-p)}\\\\\therefore \sigma =\sqrt{200\cdot 0.4\cdot (1-0.4)}=6.9$

Thus the values between the given deviation is

$x_{1}=80-2.5\times 6.9=62.75\\\\x_{2}=80+6.9\times 2.5=97.25$

Now since 120 successes are out of the range of [62.75,97.25] thus 120 is more than the expected value.

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3 years ago

alexandr1967 [171]

Answer is 4 books per minute. 240 (books) divided by 60 (minutes in one hour) equals 4

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3 years ago

Alja [10]

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3 years ago