The width of the yard whose length is 27 yards and perimeter is 74 yards is evaluated to be 10 yards
For a rectangle with length and width L and W units, we get:
Perimeter of the rectangle =
For this case, let we assume that:
The width of the considered rectangular field = W yards
Then, as we're provided that:
Putting these in the formula for perimeter of a rectangle, we get;
Thus, the width of the yard whose length is 27 yards and perimeter is 74 yards is evaluated to be 10 yards
Learn more about perimeter of a rectangle here:
Answer:
width = 10 yds
Step-by-step explanation:
perimeter = 2L + 2W
74 = 2(27) + 2W
74 = 54 + 2W
subtract 54 from both sides of the equation:
2W = 20
divide both sides by 2:
W = 10
Answer:
(-3.5,4)b
Step-by-step explanation:
The symbol π represents the long-run proportion of all the couples that lean their heads
leftright
while kissing.
Which of the following best describes the null hypothesis and the alternative hypothesis using π?
null: π ≠ 0.5, alternative: π > 0.5
null: π = 0.5, alternative: π < 0.5
null: π = 0.5, alternative: π > 0.5
null: π ≠ 0.5, alternative: π < 0.5
Of the 124 kissing couples, 80 were observed to lean their heads right. What is the observed proportion of kissing couples who leaned their heads to the right? What symbol should you use to represent this value? (Round answer to 3 decimal places, e.g. 5.275)
p^=
the absolute tolerance is +/-0.001
Determine the standardized statistic from the data. (Hint: You will need to get the standard deviation of the simulated statistics from the null distribution.) (Round answer to 2 decimal places, e.g. 52.75)
z =
the absolute tolerance is +/-0.02
Interpret the meaning of the standardized statistic.
The observed proportion of couples who leaned to the right when kissing is 3.22 standard deviations above the null hypothesized value of 0.50.
The observed proportion of couples who leaned to the right when kissing is 3.22 standard deviations away from the null hypothesized value of 0.50.
The observed proportion of couples who leaned to the right when kissing is 3.22 standard deviations below the null hypothesized value of 0.50.
Select the best conclusion that you would draw about the null and alternate hypotheses.
We have strong evidence that the proportion of couples that lean their heads to the right while kissing is more than 50%.
We have strong evidence that the proportion of couples that lean their heads to the right while kissing is less than 50%.
We have strong evidence that the proportion of couples that lean their heads to the right while kissing is 50%.
We have strong evidence that the proportion of couples that lean their heads to the right while kissing is near to 50%.
Answer:
1) null: π = 0.5, alternative: π > 0.5
2)p^= 80/124 =0.645
std error =(phat(1-phat)/n)1/2 =0.0430
3)z = (phat-p)/std erro =(0.645-0.5)/0.0430 =3.22
4)The observed proportion of couples who leaned to the right when kissing is 3.22 standard deviations above the null hypothesized value of 0.50
5)We have strong evidence that the proportion of couples that lean their heads to the right while kissing is more than 50%
Answer:
3.52
Step-by-step explanation:
Calculation to Find the mean for the random variable X
Using this formula
Mean(μ) =(n*p)
Where,
n=16
p=22% or 0.22
Let plug in the formula
Mean(μ)=16×0.22
Mean(μ)=3.52
Therefore the mean for the random variable X will be 3.52
YZ measures units.
ZX measures units.
XYZ is a right triangle.
XYZ is a scalene triangle.
First, second and fourth options are true about triangle XYZ.
XY measures units.
YZ measures units.
ZX measures units.
XYZ is a right triangle.
A triangle in which one of the interior angles is 90° is called a right triangle. The longest side of the right triangle, which is also the side opposite the right angle, is the hypotenuse and the two arms of the right angle are the height and the base.
Given X (-1, 5), Y (4, 4), Z (-2, 0)
Distance between two points D =
|XY| =
|YZ| =
|XZ| =
So, XYZ is a right triangle.
So, the first, second and fourth options are correct.
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Answer: a and d
Step-by-step explanation:
edge
Answer:
11
Step-by-step explanation:
D+16/3=17 the steps?
1. D+16/3=17
Divide 16/3.
D+6 = 17
2. subtract 6 from both side.
D = 11.