Can someone help please.
2 answers:
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Answer:
The answer to your question is below
Step-by-step explanation:
Question 1.
We have the opposite side and the adjacent side so use the tangent to find x.
tan Ф =
Substitution
tan Ф =
Ф = 30.96° = x
Question 2.
Letter A is the correct answer
Letter B is incorrect because the cylinder does not have a height of 15 mm
Letter C is incorrect because of the radius of the sphere is not 6 mm
Letter D is incorrect because the radius of the sphere is not 6 mm and the height of the cylinder is not 15 mm.
Question 3.
To solve this exercise we use the trigonometric function tangent
tan Ф =
Solve for opposite site
Opposite side = Adjacent side tanФ
Opposite side = 30 tan 80
d = 170.14 ft
Question 4
To find the sine, first we must calculate the opposite side
c² = a² + b²
a² = c² - b²
a² = 4² - 3²
a² = 16 - 9
a² = 7
a =
sin A =
sin A = 0.6614
Given the following data table that describes results from groups of 10
births from 10 different sets of parents. The random variable x
represents the number of girls among 10 children.
![\begin{tabular} {|c|c|} x&p(x)\\[1ex] 0&0.005\\ 1&0.014\\ 2&0.037\\ 3&0.114\\ 4&0.208\\ 5&0.241\\ 6&0.202\\ 7&0.116\\ 8&0.037\\ 9&0.013\\ 10&0.013\\[1ex] &\Sigma p(x)=1 \end{tabular}](https://tex.z-dn.net/?f=%5Cbegin%7Btabular%7D%0A%7B%7Cc%7Cc%7C%7D%0Ax%26p%28x%29%5C%5C%5B1ex%5D%0A0%260.005%5C%5C%0A1%260.014%5C%5C%0A2%260.037%5C%5C%0A3%260.114%5C%5C%0A4%260.208%5C%5C%0A5%260.241%5C%5C%0A6%260.202%5C%5C%0A7%260.116%5C%5C%0A8%260.037%5C%5C%0A9%260.013%5C%5C%0A10%260.013%5C%5C%5B1ex%5D%0A%26%5CSigma%20p%28x%29%3D1%0A%5Cend%7Btabular%7D)
The range rule of thumb says that the range is about four times the standard deviation.
We obtain the standard deviation as follows:
The standard deviation is given by
Therefore, the range of values containing the usual numbers of girls in 10 births is given by:
Based on the result, 1 girl in 10 births is an unusually low
number of girls because 1 is not within the normal range of values of number of girls per 10 births.
Step-by-step explanation:
try this option (see the attachment), all the correct answers are marked with colour.
