3 years ago

The measure of angle θ is . The measure of its reference angle is _°, and tan θ is _?

Mathematics

1 answer:

defon3 years ago

5 0

Answer:

0000

Step-by-step explanation:

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Which number is rational?<br> o 22<br> O 16

dangina [55]

Square root of 16 because it equals to 4 which is a rational number

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3 years ago

Suppose heights of seasonal pine saplings are normally distributed and have a known population standard deviation of 17 millimet

Mumz [18]

Answer:

$296.693\leq x\leq 319.307$

Step-by-step explanation:

The confidence interval for the population mean x can be calculated as:

$x'-z_{\alpha /2}\frac{s}{\sqrt{n} } \leq x\leq x'+z_{\alpha /2}\frac{s}{\sqrt{n} }$

Where x' is the sample mean, s is the population standard deviation, n is the sample size and $z_{\alpha /2}$ is the z-score that let a proportion of $\alpha /2$ on the right tail.

$\alpha$ is calculated as: 100%-99%=1%

So, $z_{\alpha/2}=z_{0.005}=2.576$

Finally, replacing the values of x' by 308, s by 17, n by 15 and $z_{\alpha /2}$ by 2.576, we get that the confidence interval is:

$308-2.576\frac{17}{\sqrt{15} } \leq x\leq 308+2.576\frac{17}{\sqrt{15} }\\308-11.307 \leq x\leq 308+11.307\\296.693\leq x\leq 319.307$

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3 years ago

william earns$13 an hour working.last week he worked h hours and three times as many hours. write an expression for the amount o

drek231 [11]

13 x h = A or answer

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A building in a downtown business area casts a shadow that measures 88 meters along the ground. The straight-line distance from

gregori [183]

Answer:

Step-by-step explanation:

edge assignment

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3 years ago

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A set of five integers contains 1 , 3 , and 22 . what other two integers must be included in this set so that the mean of all fi

d1i1m1o1n [39]

Total number of integers = 5

median
= (5+1)/2 th observation
= 3 rd observation

therefore the 3rd number = 13

now let the other number be x

total sum = 1+3+13+x+22 = 39+x

ATQ

(39+x)/5 = 16

39+x = 80

x = 41

the numbers are -

1,3,13,22,41

8 0

3 years ago