Answer:
CED is a right angle, CEB=AEB
hopw that helps
Answer:
1st, 2nd, 5th
Step-by-step explanation:
Answer:
a. Binomial random variable (n=4, p=0.25)
b. Attached.
c. X=1
Step-by-step explanation:
This can be modeled as a binomial random variable, with parameters n=4 (size of the sample) and p=0.25 (proportion of homeowners that are insured against earthquake damage).
a. The probability that X=k homeowners, from the sample of 4, have eartquake insurance is:
The sample space for X is {0,1,2,3,4}
The associated probabilties are:
b. The histogram is attached.
c. The most likely value for X is the expected value for X (E(X)).
Is calculated as:
10xy=W
Answer:
x=W/10y
Step-by-step explanation:
Number of Bids 2 3 4 5 7
Step 1 of 6: Find the estimated slope. Round your answer to three decimal places.
Step 2 of 6: Find the estimated y-intercept. Round your answer to three decimal places.Step 3 of 6: Find the estimated value of y when x = 34. Round your answer to three decimal places.Step 4 of 6: Determine the value of the dependent variable yˆ at x = 0.Step 5 of 6: Substitute the values you found in steps 1 and 2 into the equation for the regression line to find the estimated linear model. According to this model, if the value of the independent variable is increased by one unit, then find the change in the dependent variable yˆ.Step 6 of 6: Find the value of the coefficient of determination.
Answer:
1) b1=5.831
2) b0=12.510
3) y(34)=210.764
4) y(0)=12.510
5) y=12.510+5.831x
6) R^2=0.85
Step-by-step explanation:
We have the linear regression model .
We start by calculating the all the parameters needed to define the model:
- Mean of x:
- Uncorrected standard deviation of x:
- Mean of y:
- Standard deviation of y:
- Sample correlation coefficient
Step 1
The slope b1 can be calculated as:
Step 2
The y-intercept b0 can now be calculated as:
Step 3
The estimated value of y when x=34 is:
Step 4
At x=0, the estimated y takes the value of the y-intercept, by definition.
Step 5
The linear model becomes
Step 6
The coefficient of determination can be calculated as:
Find the value of k.
==========================================================
Explanation:
We're going to be using the slope formula a bunch of times.
Find the slope of the line through points A and C
m = (y2 - y1)/(x2 - x1)
m = (-12-9)/(9-2)
m = -21/7
m = -3
The slope of line AC is -3. The slopes of line AB and line BC must also be the same for points A,B,C to be collinear. The term collinear means all three points fall on the same straight line.
-------
Let's find the expression for the slope of line AB in terms of k
m = (y2 - y1)/(x2 - x1)
m = (k-9)/(4-2)
m = (k-9)/2
Set this equal to the desired slope -3 and solve for k
(k-9)/2 = -3
k-9 = 2*(-3) ..... multiply both sides by 2
k-9 = -6
k = -6+9 .... add 9 to both sides
k = 3
If k = 3, then B(4,k) updates to B(4,3)
-------
Let's find the slope of the line through A(2,9) and B(4,3)
m = (y2 - y1)/(x2 - x1)
m = (3-9)/(4-2)
m = -6/2
m = -3 we get the proper slope value
Finally let's check to see if line BC also has slope -3
m = (y2 - y1)/(x2 - x1)
m = (-12-3)/(9-4)
m = -15/5
m = -3 we get the same value as well
Since we have found lines AB, BC and AC all have slope -3, we have proven that A,B,C fall on the same straight line. Therefore, this shows A,B,C are collinear.
Answer:
10353
Step-by-step explanation:
The given series is in arithmetic progression since the common difference is same which is 8.
To find the sum of series we can simply apply the formula'
S= n/2( first term + last term)
S is the sum and n is the number of terms
we also need to find the number of terms n
n = (last term- first term)/2 + 1
n= 51
s= 10353
determine all the unknown values of the figure below.
Answer:
F=12.76
S=27.18
X=62 degrees
Step-by-step explanation:
hope this helps
mark brianliest ;)
Based on the right-angled triangle shown above, all the unknown values are;
S = 27.18 units
F = 12.76 units
x = 62°.
In order to determine the measure of the missing side length, we would have to apply the basic cosine trigonometric function because the given side lengths represent the adjacent side (24) of a right-angled triangle;
cos(θ) = Adj/Hyp
Where:
For the cosine trigonometric function ratio, we have the following:
cos(28) = 24/S
S = 24/cos(28)
S = 27.18 units
From tangent trigonometric function ratio, we have the following:
tan(28) = F/24
F = 24tan(28)
F = 12.76 units
Since the angles formed by a right-angled triangle are acute complementary angles;
x + 28 = 90
x = 90 - 28
x = 62°.
Read more on trigonometric function here: brainly.com/question/24349828
#SPJ3