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Rom4ik [11]
3 years ago
5

Cot^2x-tan^2x=1 for all values of x true or false?

Mathematics
2 answers:
sergejj [24]3 years ago
6 0

Answer: FALSE for apex precalculus sem 2 trigonometric identities


Step-by-step explanation:


Vsevolod [243]3 years ago
5 0
False
And I have to keep writing because Brainly will not me submit more than 20 characters 
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A poultry farmer wishes to estimate the average incubation period (the number of days between a hen laying her egg and the time
sergiy2304 [10]

Answer:

49 eggs.

Step-by-step explanation:

The formula for Margin of Error =

z × standard deviation/√number of samples

z = z score of 98% confidence interval = 2.326

Margin of Error = Half a day = 1/2day = 0.5 day

Standard deviation = 1.5 days

Number of samples = number of eggs he needs to sample = unknown.

Imputing these above values into the formula

Margin of Error = z × standard deviation/√number of samples

0.5 = 2.326 × 1.5/√n

Cross Multiply

0.5 × √n = 2.326 × 1.5

√n = 2.326 × 1.5/0.5

√n = 3.489/0.5

√n = 6.978

Square both sides

(√n)² = 6.978²

n = 48.692484

n ≈ Approximately to the nearest whole number = 49

Therefore, the number of eggs he needs to sample to create the desired interval is approximately to the nearest whole number 49 eggs

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3 years ago
What rules change the input numbers to output numbers
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Nikki, Pablo, and Mia are running a race. How many different ways might they finish the race?
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They can finish in 18 different ways
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The fifth grade students at East street decided to host a fundraiser for red ribbon week they planed to buy 240 inches of red ri
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Answer:

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Step-by-step explanation:

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Help me please easy 30pts and brainiest!!!!
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Step-by-step explanation:


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