Answers
Answer:
If the arrow is spun 400 times how many times would it be expected to ... 3 green. 20 total 10. Adrian spins the arrow on this spinner once. Which number is the arrow... Part B. Use a paperclip and the tip of your pencil to spin
Answer:
I know this was two weeks ago, but here is my answer: 1/9
Step-by-step explanation:
Baron here is going to spin this twice, and he wants to get a 3 on both, no?
Well, there are 3 sides; 1, 2 and 3, meaning that it will look something like this: ??/3.
He only wants to have one of the options, so that ??/3 will turn into a 1/3.
That would be for one spin, but he's going to do two.
SO, it would be a 1/3 chance of getting it on the first try, and a 1/3 chance on getting it on the second, multiply them together for the complete probability, and BAM you get 1/9.
There is an easier way, but it would take too long to write.
Hope you this helps you understand if you are still confused.
:)
(also not sure it this was correct, it has been a long time since I have done this)
Related Questions
find the area of the triangle
Answers
Answer:
Step-by-step explanation:
You know two sides and the angle between them. Use the Law of Cosines to find the third side.
q = √(p²+r²-2pr·cosQ) ≅ 8.533 units
Use Heron's formula to find area
semi-perimeter s = (p+q+r)/2 ≅ 10.317 units
area = √(s(s-p)(s-q)(s-r)) ≅ 16.3 units²
PLEASE ANSWER THIS QUESTION IS IN THE IMAGE!! DUE TODAY!
20 POINTS!
Answers
I cannot do the math on this but the answer equals to 4 and 1/14
Please help solve this angle problem! It is due today!
Answers
Answer:
The answer is B.
Step-by-step explanation:
Two angles that add up to 90° are called complementary angles.
Angles A and B are complimentary angles. Complimentary angles are angles which add up to exactly 90 degrees.
They are often confused with supplementary angles, but supplementaries add up to 180.
can someone help me please
Answers
Answer:
i think its b
Step-by-step explanation:
Robert has 7 pounds of ground beef. He is dividing the beef into burgers that are each 1/3 of a pound. How many burgers can he make
Answers
Kimberly has $80. She wants to purchase a school bag for $16 and as many pairs of shoes as she can. Each pair of shoes is $8. Write an inequality for the number of school shoes she can purchase.
A. 16x + 8 ≤ 80
B. 80 + 16 ≤ 8x
C. 16x + 8x ≤ 80
D. 8x + 16 ≤ 80
Answers
Answer:
D
Step-by-step explanation:
what is 9^7 written in expanded form
Answers
Answer:
9*9*9*9*9*9*9
Step-by-step explanation:
it's basically 9 multiply by itself for 7 times
write
[tex] \frac{12}{25?} [/tex]
as a decimal and as a percent
Answers
12x4=48
48/100, 48%, 0.48
How to get 10 with the numbers 7, 11, 4 and 2 in that order?
Answers
Answer:
Huh!! What is this question supposed to mean?
a company that sells annuities must base the annual payout on the probability distribution of the length of life of the participants in the plan. suppose the probability distribution of the lifetimes of the participants in the plan is approximately normal with mean equal to 66.3 years and standard deviation equal to 3.6 years. nine participants are randomly selected. what is the probability that the average age at death of these nine participants will exceed 68 years
Answers
Answer:
0.0778 = 7.78% probability that the average age at death of these nine participants will exceed 68 years
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Approximately normal with mean equal to 66.3 years and standard deviation equal to 3.6 years.
This means that [tex]\mu = 66.3, \sigma = 3.6[/tex]
Sample of 9:
This means that [tex]n = 9, s = \frac{3.6}{\sqrt{9}} = 1.2[/tex]
What is the probability that the average age at death of these nine participants will exceed 68 years?
This is 1 subtracted by the pvalue of Z when X = 68. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{68 - 66.3}{1.2}[/tex]
[tex]Z = 1.42[/tex]
[tex]Z = 1.42[/tex] has a pvalue of 0.9222
1 - 0.9222 = 0.0778
0.0778 = 7.78% probability that the average age at death of these nine participants will exceed 68 years
A group of 20 students attempting a MathematicalChallenge have an average age of 11. When their teacher is included their average age is12. What is the age of the teacher?
Answers
Answer:
32.
1st get the total age of the students
x/20 = 11
x=11x20
x =220 (total age of students)
add y ( teachers age) to the equation
(220 + y)/21=12
y= 32
Answer:
32
Step-by-step explanation:
20 * 11= 220
21 * 12= 252
252-220=32
4 ft 5 ft 2 ft 6 ft 6 ft 11 ft
Answers
Answer:
34 feet
Step-by-step explanation:
Find sequence 10 5/22, 9, 7 17/22, ___, 5 7/22
Answers
Answer:
6⁶/11
Step-by-step explanation:
adding -27/22 to the previous number will give you the next number in the sequence
10 5/22 + -27/22 = 9
9 + -27/22 = 7 17/22
7 17/22 + -27/22 = 6 6/11
6 6/11 + -27/22 = 5 7/22
I need help with this question.
Answers
9514 1404 393
Answer:
1.13 feet
Step-by-step explanation:
We know that the sine relation is ...
Sin = Opposite/Hypotenuse
so the length (L) of the ramp surface will be ...
sin(angle) = 2/L
L = 2/sin(angle)
For 18°, the ramp length will be about ...
L = 2/sin(18°) ≈ 6.472 . . . . feet
For 22°, the ramp length will be about ...
L = 2/sin(22°) ≈ 5.339 . . . . feet
The difference in lengths is about ...
6.472 -5.339 = 1.133 ≈ 1.13 . . . . feet
if f(x) =2((x)), find f(-1/4)
Answers
Answer:
Combine
f and 1/4.
and u get - f/4
Step-by-step explanation:
Answer:
-1/2
Step-by-step explanation:
2(-1/4)
yo momma is 600 pounds she eats 300 more pounds of food and gets fatter how many more pounds does she need to get to weigh 3000 pounds
Answers
Answer:
2100
Step-by-step explanation:
L M A O
please helppp!!!!!! im giving all my points left
A teacher wants to compare how two classes have performed on a test they have taken. Should the teacher report the test mean or the test median? Which measure might describe the data set better? Why?
Your response should be 3-5 sentences long.
Answers
Answer: median
Step-by-step explanation: In this situation the mean is widely preferred as the best measure of central tendency because it is the measure that includes all the values in the data set for its calculation
Point KK is located at (5,-4)(5,−4) on the coordinate plane. Point KK is reflected over the xx-axis to create point K'K
What ordered pair describes the location of K'?K
Answers
Answer:
The ordered pair that describes the location of K' is (5,4).
Step-by-step explanation:
Reflection over the x-axis:
When a point is reflected over the x-axis, it's x-coordinate stays the same, while the signal of the y-coordinate is changed. So
(x,y) -> (x,-y)
In this question:
Point K(5,-4)
Reflection over the x-axis:
(5,-4) -> (5,-(-4)) -> (5,4)
The ordered pair that describes the location of K' is (5,4).
!!!!!!!!!!!!!!!!!!!!help me
Answers
Answer:
pretty sure its 75
Olivia has 2 gallons and 3 quarts of vanilla ice cream and 1 gallon and 2 quarts of chocolate ice cream left over from a party What is the total number of gallons and quarts of ice cream that Olivia has left over?
Answers
Answer:
4 gallons 1 quart total ice cream
first you add the gallons and the quarts.
so, 2 gallons vanilla + 1 gallon chocolate is 3 gallons.
3 quarts vanilla + 2 quarts chocolate is 5 quarts.
4 of the 5 quarts are taken to make up another gallon.
so the answer is 4 gallons 1 quart total ice cream.
Hi. I need help with math. 8th grade.
Answers
Answer:
260 is the answer. jjrjejjehene
Can you help me on question nine please?!
Answers
Answer:
24
Step-by-step explanation:
plug in 2
2^3+7(2)+2
2×2×2+14+2
8+14+2
24
7x2 + 4x - x2 whats the answer?!?
Answers
Answer:
14 + 2x I think
Step-by-step explanation:
Wait for more responses if needed
Answer:
[tex] {6x}^{2} + 4x[/tex]
Step-by-step explanation:
1) Collect like terms.
[tex](7 {x}^{2} - {x}^{2} ) + 4x[/tex]
2) Simplify.
[tex] {6x}^{2} + 4x[/tex]
Therefor, the answer is 6x² + 4x.
Help on question 5 please :))
Answers
Answer:
the answer is I LIKE YOUR CUT G
Step-by-step explanation:
your a bot at fortnite
Answer:
b. Substitute 8x+4 for y in the first equation.
2/5 x 30 pls help me
Answers
Answer:
12
Step-by-step explanation:
Answer:
The answer is 12.
A flagpole is 4 meters tall. How many
centimeters tall is the flagpole?
Answers
Answer:
400 cm
Step-by-step explanation:
100 centimeters in a meter.
4 * 100 = 400
PLEASE HELP I WILL GIVE BRAINLIEST IF YOU GET IT RIGHT 7TH GRADE MATHH
Answers
Answer:
990
Step-by-step explanation:
(21*18*2)+(21*3*2)+(18*3*2)
=990
help me pleaseee! thank you!!!
Answers
Answer:
you shouldn't be cheating kid
help me with this thank you
Answers
Answer: think it’s c 4/28
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
(fractions) 3/4 + 1/5
Answers
Answer:
19/20
Step-by-step explanation:
write all numerators above the least common denominator 20
15+4/20
add the numbers
19/20
Answer: 19/20
Step-by-step explanation:
Find your common denominator
3/4
Multiply by 5
15/20
1/5
Multiply by 4
4/20 + 15/20= 19/20
Hope this helped :)