examine the spinner at right. If the central angle of region A is 7 calculate the expected value of one spin.Round to the nearest hundredth..pls hurry
Answers
Answer:
The whole angle on a circle is equal to 360°.
This means that:
∠A + ∠B = 360°.
Here we know that ∠A = 7°
Then ∠B = 360° - 7° = 353°
Now, if the probability is evenly distributed for all the angles, then the probability that the spinner lands in A is equal to the quotient between the measure of the angle A, and the measure of the total circumference, this will be:
Pa = 7°/360° = 0.019
And the same for B:
Pb = 353°/360° = 0.981
Now, the expected value can be calculated as:
Ev = ∑xₙ*pₙ
Where xₙ is the event n, and pₙ is its probability.
Then:
x₁ = A = 100
p₁ = Pa = 0.019
x₂ = B = 2
p₂ = Pb = 0.981
The expected vale will be:
Ev = 100*0.019 + 2*0.981 = 3.862
Rounding to the nearest hundredth, the second digit after the decimal point, we have:
Ev = 3.86
Related Questions
4 monkeys is _______% of 20 monkeys.
1 point
5
4
20
50
_______% of 50 robots is 35 robots.
1 point
50%
35%
70%
10%
Answers
70% of 50 robots is 35 robots.
Answer:
hm
Step-by-step explanation:
Question 5 (4 points)
(07.03)
What is the solution to the following equation? (4 points)
2(3x - 7) + 18 = 10
a
1
Ob
3
Oc
5
Od
6
Answers
Answer:
Please mark as brainliest.
Please help me with this please
Answers
it is nonlinear because well it’s not a line but it is still a function. a function is a graph that does not have overlapping y values, this graph follows the rule therefore it is a function
About how many male math teachers will there be in 2016?
A. 32
B.52
Answers
Answer:
From the answers you provided the best answer is B.52
Step-by-step explanation:
It starts past 32 so there's no way it can ever be that value as the graph is continuously increasing.
Answer:
is it 32?
Step-by-step explanation:
sorry if im wrong
hope this helps
Follow my Pinterest 13jadyn13 for outfit inspo
Answers
Answer:
What is your style?
Step-by-step explanation:
Mwah
Answer: okay
Step-by-step explanation:
The m∠1 is the 63° angle. What is the measure of angle 1? degrees
Answers
Answer:
117 degrees
Step-by-step explanation:
theres no picture and not alot of context so i just subtracted 180 and 63
Answer:
The supplement of, and 117.
Step-by-step explanation:
I will give you the brainiest!!!!! Which graph shows the parallelogram after the rotation and translation? brainiest
Answers
Answer:
Answer O(A)
Step-by-step explanation:
It is rotated counter-clockwise, so it cant be C or D, and if it was reflected it would be B, so it is A.
Hope this helps plz mark brainliest :D
Ryan is a wrestler trying to make weight he currently weighs 200lbs if he cuts 2 pounds per week how many weeks will it take him to weigh less than 175lbs
Answers
Answer:
13 weeks
Step-by-step explanation:
2 lbs per week (2 pounds × 13 weeks= 26)
200- 26= 174
Clare travels at a constant speed, as shown on the double number line. At this rate, how far does she travel in each of these intervals of time? • 1 hour • 3 hours • 6.5 hours You may use the table to help show your thinking if you wish, and record your final values at the bottom of the table.
Answers
Answer:
7890-
Step-by-step explanation:
Kendall is making greeting cards, which she will sell by the box at an arts fair. She paid $40
for a booth at the fair, and the materials for each box of cards cost $5. She will sell the cards
for $10 per box of cards. At some point, she will sell enough cards so that her sales cover her
expenditures. How many cards will that take?
Answers
Answer:
9
Step-by-step explanation:
40 dollars due up front
10 dollars made per sale
5 dollars lost per creation
Realistically speaking she is only making a $5 profit per box she sells;
$5 used up for material cost, $10 made from sales -5+10= 5
To pay the $40 dollar for the booth she would need to make 9 sales with her current profit
40/5 = 9
One inlet pipe can fill an empty pool in 12 hours, and a drain can empty the pool in 16 hours. How long will it take the pipe to fill the pool if the drain is left open?
Answers
Answer:
48 hours
Step-by-step explanation:
So one Pipe can fill an empty pool in 12 hours, and a drain can empty the pool in 16 hours.
So let's just say that x is the value for how much the pool was filled, and y is the time taken.
So which means :
X = [tex]\frac{1}{12}y[/tex] - [tex]\frac{1}{16} y[/tex]
[tex]\frac{1}{12}[/tex] represents the volume of the tank being filled up in one hour while [tex]\frac{1}{16}[/tex] represents the volume of the tank being drained in one hour. By subtracting, we get to know the volume of the tank being filled up in one hour.
So, we solve the equation.
To find X, we make the denominator of the two fractions the same.
X = [tex]\frac{1}{12}y[/tex] - [tex]\frac{1}{16} y[/tex]
= [tex]\frac{1(4)}{12(4)}y[/tex] - [tex]\frac{1(3)}{16(3)}y[/tex]
= [tex]\frac{4}{48}y[/tex] - [tex]\frac{3}{48}y[/tex]
Then, we subtract.
[tex]\frac{4}{48}y[/tex] - [tex]\frac{3}{48}y[/tex] = [tex]\frac{1}{48}y[/tex]
[tex]\frac{1}{48}[/tex] is the volume of the pool that is filled in one hour
Finally, we find the time taken for the pipe to fill the pool.
If one hour fills [tex]\frac{1}{48}y[/tex] of the pool, then :
1 = [tex]\frac{1}{48}y[/tex]
y = 48 hours.
So, the time taken for the pipe to fill the pool with the drain left open is 48 hours.
HOPE THIS ANSWER HELPED :)A 2-column table with 4 rows. Column 1 is labeled Number of Bouquets with entries 3, 6, 9, 12. Column 2 is labeled Price (dollars) with entries 9, 18, 27, 36.
The table shows the price for buying bouquets of flowers at a farmer’s market.
What is the unit rate?
Answers
Answer:
The unit rate is $3
Step-by-step explanation:
The given table can be written as follows:
No. of Bouquets 3 6 9 12
Price 9 18 27 36
In order to find the unit price, the price will be divided by the units.
So,
[tex]Unit\ price = \frac{Total\ price}{Number\ of\ bouquets}[/tex]
Taking a single pair from the table (Any pair of number of bouquets and price of those number of bouquets can be taken for this purpose)
[tex]Unit\ price = \frac{9}{3}[/tex]
= 3
Hence,
The unit rate is $3
Answer:
$3 per bouquet
Step-by-step explanation:
3. Give the domain and range of the relation. Tell whether the relation is a function, 1 1 3 1 6 8. D: {0,1}: R: 1-5, -1,3,6} The relation is a function. b. D: {0,1); R: -5, -1,3,6) The relation is not a function. D: -5,-1,3,6); R: (0,1} The relation is not a function. d. D:{-5, -1,3,6); R: (0,1} The relation is a function.
Answers
Answer:
D
Step-by-step explanation:
Please need help fast thank you. The problem is in the picture.
Answers
Answer:
Angles 2, 3, 6, 7
Step-by-step explanation:
Since supplementary means to add up to 180 degrees, or a straight angle, we just find which angles are connected with a straight line.
These angles would be Angle 2 and Angle 3.
Since we have a whole figure, we also need to find the corresponding angles for Angle 2 and Angle 3. (Corresponding angles are the same degree as the original angle.)
The Corresponding angles to Angle 2 and Angle 3 are Angle 6 and Angle 7 respectively.
Thus, our answer is Angles 2, 3, 6, and 7.
PLZ HELP FIFTY POINTS FOR WHOEVER HELPS I NEED THIS ASAP
Answers
Answer:
x = 18
y = 54
Step-by-step explanation:
A straight line equals 180 degrees.
Since Lines CD and AB are straight, we can deduce that the angle 3x = 2x + angle AN.
Because there is a right angle, we can subtract 90 -72 = 18.
18 + 2x = 3x
18 = x
A straight line equals 180 degrees. Once we figure out that x = 18, we can figure out y by plugging in x and then subtracting your answer from 180 degrees.
I hope this was helpful to you! If it was, please consider rating, pressing thanks, and giving my answer 'Brainliest.' Have a great day!
What is the interquartile range of the following data set? 3,8, 14, 19, 22, 29, 33, 37, 43, 49. A. 26 B. 23 C. 19 D. 18
Answers
Answer:
I think the answer is B.23
bob buys a t-shirt for $7.45 he pays with a 20 bill. how much change will he get?
Answers
Answer:
12.55
Step-by-step explanation:
Subtract 20 by 7.45
The required amount bob will get in return is given as $12.55.
Given that,
bob buys a t-shirt for $7.45 he pays with a 20 bill, how much change will he get is to be determined.
What is arithmetic?
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
here,
total nill = $7.45
Total money given = $20
Change to return = 20 - 7.45 = $12.55
Thus, the required amount bob will get in return is given as $12.55.
Learn more about arithmetic here:
https://brainly.com/question/11424589
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What are the domain and range of x= -2?
Answers
Answer:
The range is all real numbers, because it's a vertical line, and the domain is -2 because it's a vertical line with -2 as it's only x.
Step-by-step explanation:
simplify each expression
(e^2)(g)(g^4)(e^3)
(e)(e^2)(e)
Answers
9514 1404 393
Answer:
e^5g^5e^4Step-by-step explanation:
The applicable rule of exponents is ...
(a^b)(a^c) = a^(b+c)
__
[tex](e^2)(g)(g^4)(e^3)=e^{(2+3)}g^{(1+4)}=\boxed{e^5g^5}\\\\(e)(e^2)(e)=e^{(1+2+1)}=\boxed{e^4}[/tex]
576+367 having trouble
Answers
Answer:943
Step-by-step explanation:ask Siri or just add those numbers
If you see a snake the best thing to do is walk away if it’s chasing you DO NOT RUN this might seem crazy but let it go on you and just Stand there the snake will think your just a plain standing pole do not touch it before it will hurt you add me and thank me for more PS:If you have questions for me just put it in the comments and I’ll answer them but if you want to see them you have to add me
Answers
Answer:
So, is this just a 'just you should know' thing?
Step-by-step explanation:
Answer:
I have a question.
Step-by-step explanation:
What do u do if a dog is chasing u and ur alone?
Someone please help me with this!!!!
Write the equation of the line fully simplified slope-intercept form.
Answers
Answer:
The equation of the line is y = -x + 8
Step-by-step explanation:
The slope-intercept form of the linear equation is y = m x + b, where
m is the slope of the lineb is the y-intercept (value y at x = 0)The rule of the slope is m = [tex]\frac{y2-y1}{x2-x1}[/tex] , where
(x1, y1) and (x2, y2) are two points on the lineFrom the given figure
∵ The line passes through points (8, 0) and (0, 8)
∴ x1 = 8 and y1 = 0
∴ x2 = 0 and y2 = 8
→ Substitute them in the rule of the slope to find it
∵ m = [tex]\frac{8-0}{0-8}=\frac{8}{-8}=-1[/tex]
∴ m = -1
→ Substitute it in the form of the equation above
∵ y = -1(x) + b
∴ y = -x + b
∵ b is value y at x = 0
∵ At x = 0, y = 8
∴ b = 8
→ Substitute it in the equation above
∴ y = -x + 8
∴ The equation of the line is y = -x + 8
Help me plzzzzzzzzzz
Answers
Answer:
∠f=34°
Step-by-step explanation:
What decimal part of 36 is 20.88?? (Someone please answer quick)
Answers
Answer:
0.58
Step-by-step explanation:
20.88/36=0.58
Sana makatulong
The correct value of this given condition is, 0.58.
What is Division method?Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.
Let x decimal part of 36 is 20.88.
Hence, We can formulate;
⇒ x = 20.88 / 36
⇒ x = 0.58
Thus, The solution is, 0.58
Learn more about the divide visit:
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Kelsey is a stock broker. She earns 11% commission each week.Last week she sold $7200 worth of stocks. How much did she make last week in commission? if she averages the same amount each week how much did she make in commission in 2011?
Answers
Answer:
$792 last week's commission.
$41,184 for 2011
Step-by-step explanation:
11% of 7200 is = $792
$792 times 52 weeks in a year is $41,184
The endpoints of a segment are (0, -5) and (-3,-7). What are the endpoints of the segment after it has been translated 5
units to the right?
A. (-5,-5), (-8, -7)
B. (0,0).(-3,-2)
C. (5,-5), (2, -7)
D. (5.0), (2,-2)
Answers
Answer:
C
Step-by-step explanation:
Only the x values are affected.
So you add 5 to each of the x values.
0+5 = 5
-3+5 = 2
The points then become (5, - 5) and (2,-7)
The answer is C
2.
Turkey for sandwiches costs $7.75 per pound. What equation best represents
y, the total cost of x pounds of turkey?
a. X = 7.75 + y
b. X = 7.75y
C. Y = 7.75 + x
d. Y = 7.75x
Answers
d
Explanation:
Y=7.75x
1pound-$7.75x1
Xpound-$7.75xX
Solve for x.
−x − 4( 1−x)>1
x −1
x>5/3
x<−1
Answers
Answer: x> 5/3
Step-by-step explanation: Let's solve your inequality step-by-step.
−x−4(1−x)>1
Step 1: Simplify both sides of the inequality.
3x−4>1
Step 2: Add 4 to both sides.
3x−4+4>1+4
3x>5
Step 3: Divide both sides by 3.
3x /3 > 5 /3
x> 5 /3
Find the distance between the two points:) (4, -1) and K (0, 1)
Answers
Answer:
(4,2)
Step-by-step explanation: count down form 4 then -1
What is the product of 10³ x 4.132?
Answers
Answer:
4132
Step-by-step explanation:
Answer:
Step-by-step explanation:
4.132 * 10^3=
4.132*1000= 4132
