Answer:
A, 20m
Step-by-step explanation:
To find the radius of a circle you have to divide by 2.
40 ÷ 2 = 20
So, the radius is 20m
Have a wonderful day!
PLEASE ANSWER I WILL GIVE U BRAINLIEST
find the Area if all angles are right angles
PLEASE HELP ME WITH THIS QUESTION I WILL GIVE BRAINLIEST!!!
Answer:
I think is B
Step-by-step explanation:
25 POINTS!!!!!!!! Write the slope-intercept form of the equation of the line described.
Answer:
I'm sorry hindi ko po alam
question in picture attached
Answer:
if u have a I phone I dont know but if u have a galaxy Note whatever take a pick and press the pencil at the bottom and move the lines how u want it
hope it helps
Wavelength and Frequency
Determine the ratio of the notes to middle C.
Express the answers as a simple integer ratio. (Ratios will be approximate due to rounding.)
The smaller the numbers in the ratio, the greater the consonance. Decide which of the notes when played with middle C would have the greatest dissonance.
a. G and C
b. B and C
c. D and C
d. E and C
Please select the best answer from the choices provided
Answer:
B. B and C
Step-by-step explanation:
I calculated it logically
Answer:
The answer would be a. G and C.
Step-by-step explanation:
When calculating G/C, 329/261.6= 1.49847 rounded.
We are looking for the closest integer ratio to that number which is 3 to 2. A 3/2 ratio =1.5 which is as close to 1.49847 as you are going to get with a ratio. Hope this helps!
FIND THE PERIMETER AND THE AREA OF A TRIANGLE!!!
I WILL MARK YOU AS BRAInLiest!!!
Answer:
3,833.856
Step-by-step explanation:
There are 4 green marbles and 2 red marbles in the jar. You just randomly draw one by one without replacement and stop when you get the first red marble. Let X be the number of green marbles you draw when you stop. Get the probability distribution of X and find the expectation of it
Answer:
Then the probability distribution is:
P(0) = 1/3
P(1) = 4/15
P(2) = 1/5
P(3) = 2/15
P(4) = 1/15
The expected value for X is:
EV = 1.33...
Step-by-step explanation:
We have a total of 6 marbles in the jar.
The probability of getting a red marble in the first try (X = 0) is equal to the quotient between the number of red marbles and the total number of marbles, this is:
P(0) = 2/6 = 1/3
The probability of drawing one green marble (X = 1)
is:
First, you draw a green marble with a probability of 4/6
Then you draw the red one, but now there are 5 marbles in the jar (2 red ones and 3 green ones), then the probability is 2/5
The joint probability is:
P(1) = (4/6)*(2/5) = (2/3)*(2/5) = 4/15
The probability of drawing two green marbles (X = 2)
Again, first we draw a green marble with a probability of 4/6
Now we draw again a green marble, now there are 3 green marbles and 5 total marbles in the jar, so this time the probability is 3/5
Now we draw the red marble (there are 2 red marbles and 4 total marbles in the jar), with a probability of 2/4
The joint probability is:
P(2) = (4/6)*(3/5)*(2/4) = (2/6)*(3/5) = 1/5
The probability of drawing 3 green marbles (X = 3)
At this point you may already understand the pattern:
First, we draw a green marble with a probability 4/6
second, we draw a green marble with a probability 3/5
third, we draw a green marble with a probability 2/4
finally, we draw a red marble with a probability 2/3
The joint probability is:
P(3) = (4/6)*(3/5)*(2/4)*(2/3) = (2/6)*(3/5)*(2/3) = (1/5)*(2/3) = (2/15)
Finally, the probability of drawing four green marbles (X = 4) is given by:
First, we draw a green marble with a probability 4/6
second, we draw a green marble with a probability 3/5
third, we draw a green marble with a probability 2/4
fourth, we draw a green marble with a probability 1/3
Finally, we draw a red marble with a probability 2/2 = 1
The joint probability is:
P(4) = (4/6)*(3/5)*(2/4)*(1/3)*1 = (1/5)*(1/3) = 1/15
Then the probability distribution is:
P(0) = 1/3
P(1) = 4/15
P(2) = 1/5
P(3) = 2/15
P(4) = 1/15
The expected value will be:
EV = 0*P(0) + 1*P(1) + 2*P(2) + 3*P(3) + 4*P(4)
EV = 1*(4/15) + 2*( 1/5) + 3*( 2/15) + 4*(1/15 ) = 1.33
So we can expect to draw 1.33 green marbles in this experiment.
Pls help 15 points pls hurry
Answer:
5k and -3k are like variables
constants 7 and -2 are like terms
5+2k+n is equivalent expression
Step-by-step explanation:
Solve
1/5(20−10x)−8x>−6x−16
Answer:
Step-by-step explanation:
4 - 2x - 8x > -6x - 16
4 - 10x > -6x - 16
4 - 4x > -16
-4x > -20
x < 5
X^3+8 divided by x+2
Answer: x^2+4
Step-by-step explanation:
Answer:
x^2 - 2x+4
Step-by-step explanation
What is the range of 45,72,76,82,82,84,89,90,92
Answer:
the range is 47!
Step-by-step explanation:
to find the range of a set of numbers, first put the numbers in order from smallest to largest (which is already done) and simply subtract the smallest number from the biggest one!
the smallest being 45 and the highest is 92 in this case! hope this helps
need help asap please
It should be A. The distance between Jupiter and Earth is Greater than the distance between Mercury and Earth.
What is the probability of randomly picking an ace of hearts from standard deck of play omg cards?
Answer:
1/52
Step-by-step explanation:
Theres 52 cards in a deck.
Answer:
1/52
Step-by-step explanation:
there are 52 cards in a deck of cards so the probability of getting an ace is 1/52
Work out 65% of 300.
Step-by-step explanation:
21.6%
mark as brainliest
Answer:
195
Step-by-step explanation:
65%=65÷100=0.65
0.65×300=195
Claire is 11 years old. She is 5 years younger than her brother Gary who is y years old. Which equation represents this situation?
Answer:
y = 11 + 5
Step-by-step explanation:
So she is 5 years younger, which would mean that it would be y - 5, and using inverse operations, we get y = 11 + 5
hope this helps:/
6+4*{3+7}=
um i need help
Answer:
46
Step-by-step explanation:
6+4×10=6+40
6+40=46
Write an algebraic expression.
Multiply the sum of 4 and a number (n) by 3.
the inches of rainfall on mount waiale on Kauai in Hawaii is represented by the function f(x)=3^x+1-22 scientist are useing equations to study rain fall from year to year.
Calculate how much rainfall there was in year four and In year nine. You must show all of your work and calculate.
Answer:
[tex] \textrm {221 in year 4} \\ \textrm{59027 in year 9}[/tex]
Step-by-step explanation:
we are given a function
[tex] \displaystyle f(x) = {3}^{x + 1} - 22[/tex]
where x represents the years f(x) represents the amount of rainfall
so to figure out the amount of rainfall in year 4 we can substitute 4 for x
[tex] \displaystyle f(4) = {3}^{4+ 1} - 22[/tex]
simplify addition:
[tex] \displaystyle f(4) = {3}^{5} - 22[/tex]
simplify square:
[tex] \displaystyle f(4) = 243- 22[/tex]
simplify substraction:
[tex] \displaystyle f(4) = 221[/tex]
likewise In the year 9
[tex] \displaystyle f(9) = {3}^{9 + 1} - 22[/tex]
simplify addition:
[tex] \displaystyle f(9) = {3}^{10} - 22[/tex]
simplify square:
[tex] \displaystyle f(9) = 59049 - 22[/tex]
simplify Substraction:
[tex] \displaystyle f(9) = 59027[/tex]
hence,
there was 221 and 59027 in year four and In year nine
-. A businessman plans to retire in 30 years. As part of his retirement plan, he has
invested $8,000 in a public utility bond that will increase his investment at a rate of
6% per year, compounded annually. Which is the best approximation of the value of
the investment after 30 years?
Answer:
A = $45948
Step-by-step explanation:
Given the following data;
Principal = $8000
Interest rate = 6% = 6/100 = 0.06
Time = 30 years
To find the future value, we would use the compound interest formula;
[tex] A = P(1 + \frac{r}{100})^{t}[/tex]
Where;
A is the future value.
P is the principal or starting amount.
r is annual interest rate.
t is the number of years for the compound interest.
Substituting into the equation, we have;
[tex] A = 8000(1 + \frac{6}{100})^{30}[/tex]
[tex] A = 8000(1 + 0.06)^{30}[/tex]
[tex] A = 8000(1.06)^{30}[/tex]
[tex] A = 8000(5.7435)[/tex]
A = $45948
I need assistanceeeee
Answer:
I believe it would 24..
Step-by-step explanation:
There are 120 seventh graders at Danielle's school. Each day, the students have the option of eating outside or in the lunch room. Danielle decided to keep track of how many students eat outside each day. After recording her results for the whole school year, she has displayed the data for each month in a box-and-whisker plot. Below are her plots for the months of September and April.
-Fill in the blank-
The____number of students that ate outside in
mode, mean, median
April is approximately___
25, 10, 15 ,20
___Than the
greater, less
____number of students that ate outside in September.
median, mode, mean
There is more variability in the plot representing_____.
April, September
There is ____overlap in the two data sets.
much, some, no
Answer:
mean, 15, less, median, april, much
Step-by-step explanation:
Answer:
Hope it helps
median, 15, less, median, April, much
Step-by-step explanation:
I did the quiz I should know.
i need help on this question
Which question is a statistical question? A. How many children are there in my neighborhood? B. How many families in my neighborhood include children? C. How many children are there in each family in my neighborhood? D. How many children in my neighborhood have siblings? E. How many families in my neighborhood have more than one child?
Answer:
I think the answer is C
Step-by-step explanation:
I hope this helps
The children are there in each family in my neighborhood.
We have given that the question is a statistical question
We have to determine the correct question in statistical data.
What is the statistical data?
A statistical question is a question that can be answered by collecting data that vary.
Therefore, The children are there in each family in my neighborhood.
Therefore option C is correct.
To learn more about the statistical question visit:
https://brainly.com/question/12150562
SPJ2
Log5(9) + log5 -x ; x =3
Show steps
simplification of 1.5kg : 250gm
ratio question
Answer:
1500g:250g
=
6:1
Hope I could help
In order to control costs, a company wishes to study the amount of money its sales force spends entertaining clients. The following is a random sample of six entertainment expenses (dinner costs for four people) from expense reports submitted by members of the sales force. $157 $132 $109 $145 $125 $139 a. Calculate x , s2, and s for the expense data. In addition, show that the two different formulas for calculating s2 give the same result. b. Assuming that the distribution of entertainment expenses is approximately normally distributed, calculate estimates of tolerance intervals containing 68.26 percent, 95.44 percent, and 99.73 percent of all entertainment expenses by the sales force. c. If a member of the sales force submits an entertainment expense (dinner cost for four) of $190, should this expense be considered unusually high (and possibly worthy of investigation by the company)
Answer:
A) x¯ = 134.5
s² = 276.7 is the same for both formulas
s = 16.634
B) At 68.26%, we have (117.866, 151.134)
At 95.44%, we have (101.232, 167.768)
At 99.73%, we have (84.598, 184.402)
C) Yes, it will be considered high because 190 doesn't fall between any of the 3 tolerance intervals gotten in B above.
Step-by-step explanation:
A) The random 6 entertainment expenses are;
$157, $132, $109, $145, $125, $139
We want to find x¯ which is the mean.
Thus;
x¯ = (Σx)/n
x¯ = (157 + 132 + 109 + 145 + 125 + 139)/6
x¯ = 134.5
s² is the variance and can be calculated from 2 different formulas which are;
s² = (Σ(x - x¯)²)/n
Or s² = ((Σx²) - (Σx)²/n)/(n - 1)
For the first formula, when calculated we have;
s² = [(157−134.5)² + (132−134.5)² +(109−134.5)² + (145−134.5)² +(125−134.5)² + (139−134.5)²]/6
s² = 276.7
For the second formula;
(Σx²) = (157)² + (132)² + (109)² + (145)² +(125)² + (139)² = 109925
(Σx) = (157 + 132 + 109 + 145 + 125 + 139) = 807
Thus;
s² = (109925 - (807²/6))/(6 - 1)
s² = 276.7
So both formulas gave the same result of s²
s = √s² = √276.7
s = 16.634
B) from the empirical rule, 68% of the data will fall within one standard deviation while 95% of the data will fall within two standard deviations, and then 99.7% of the data will fall within three standard deviations from the mean.
Now, 68.26% will correspond to 1 standard deviation from the means and the tolerance level Formula here is;
x¯ ± s = 134.5 ± 16.634
This gives; (117.866, 151.134)
95.44% will correspond to within 2 standard deviations and the formula here is;
x¯ ± 2s = 134.5 ± 2(16.634)
>> (101.232, 167.768)
99.73% will correspond to within 3 standard deviations and the formula here is;
x¯ ± 3s = 134.5 ± 3(16.634)
>> (84.598, 184.402)
C) Yes it would be considered high because it doesn't fall between any of the 3 intervals in B above.
Question 4: Finding a basis of the orthogonal complement Consider the matrix Find a basis of the orthogonal complement of the column space of . Basis [[0,1,-1],[1,1,0]] How to enter the solution: To enter your solution, place the entries of each vector inside of brackets, each entry separated by a comma. Then put all these inside brackets, again separated by a comma. Suppose your solutions is . Then please enter
Answer: hello your question is poorly written hence I will provide the required matrix
answer :
A = [tex]\left[\begin{array}{ccc}1&0&1\\0&1&1\\1&-1&0\end{array}\right][/tex]
Step-by-step explanation:
Given that the basis of the orthogonal complement have been provided already by you in the question I will have to provide the Matrix
The required matrix
[tex]\left[\begin{array}{ccc}1&0&1\\0&1&1\\1&-1&0\end{array}\right][/tex]
column1 = column 3 - column2
where column 3 and column 2 are the basis of the orthogonal complement of the column space of the Matrix
PLS HELP!!! need the answer asap
Scott is selling coupon books to raise money for his football team. If he raised $60 so far and the coupon books cost $15 each, how many more must he sell in order to raise at least $300?
I need your help s.o.s PLEASE
Answer:
Area = 17.5yd
Step-by-step explanation:
Area formula is Area = h * b/2
Area = 5 * 7/2
Area = 17.5
Answer:
is this area or volume? if it's Area 1/2 b*h