Answer:
3/21, 14.29%, or 14.29
Step-by-step explanation:
John has 21 total marbles, which includes 3 blue ones.
(That's 3 over 21)
Hope this helps!
The required probability of getting blue marble would be 1/7.
What is probability?Probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.
Given that bag contains 6 red marbles, 3 blue marbles, 7 yellow marbles, and 5 green marbles.
The total number of outcomes = 6 + 3 + 7 + 5 = 21
So n(S) = 21
Number of blue marbles = 3
Number of favorable outcomes, n(E) = 3
If John reaches into the bag and randomly pulls out a marble
So the probability of getting blue marble would be as:
⇒ P(E) = n(E)/n(S)
⇒ P(E) = 3/21
⇒ P(E) = 1/7
Therefore, the required probability of getting blue marble would be 1/7.
Learn more about the probability here:
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Write an equation to the nth term of the arithmetic sequence. (write the equation for the sequence)
15, 13, 11, 9
Answer:
15,13,11,9,…
Given
2
13 - 15 = -2
11 - 13 = -2
9 - 11 = -2
d = -2
3
4
when n = 515,13,11,9,…
Given
2
13 - 15 = -2
11 - 13 = -2
9 - 11 = -2
d = -2
3
4
when n = 515,13,11,9,…
Given
2
13 - 15 = -2
11 - 13 = -2
9 - 11 = -2
d = -2
3
4
when n = 5
(PART A PART B) PLEASE HELP!!! DUE TODAY!!!! ❤️
Answer:
the anser from what i see should be option 1
Step-by-step explanation:
The reason why i say this is because number 1 is linear which means it is just multipying but your multiplying and adding and its not option 3 because question 5 said the questions started at 1
Nora has $50 saved and gets $12 a week in allowance. Write a function to show the total amount of money she will have saved after n weeks.
Answer:
After 'n' weeks?
Step-by-step explanation:
Make sure your question makes sense.
I'll mark the correct answer the Brainiest
What is the sum of 4.9 × 10^2 and 6.8 × 10^3?
A.
1.17 × 10^3
B.
1.17 × 10^5
C.
1.17 × 10^7
D.
7.29 × 10^2
E.
7.29 × 10^3
Answer:
E
Step-by-step explanation:
To find the sum, you most find the answers for both powers of tens. 10^2 is 100, so 4.9*100=490. 10^3 is 1000, so 6.8^1000= 6800. Add them together and you get 7290, which if divided by 1000, you get 7.29. Since 10^3 is 1000, the correct answer isE.
At 8 a.m. the temperature was –4ºC. At 12 p.m., the temperature was –1ºC. Shayla claims that it was warmer at 8 a.m. than it was at 12 p.m.
What mistake did Shayla most likely make when comparing the temperatures?
A. She used a number line.
B. She compared the absolute values.
C. She compared the order of the numbers.
D. She counted the distance from zero incorrectly.
Answer:
I believe the answer is C.
Step-by-step explanation:
Shayla forgotten that the further you are away, the more colder it gets or you are further away from zero. It is more warmer at 12pm than 8am as it was -1 degrees celsius which is warmer than -4 degrees celsius.
Which of the following is true if the data point 11.1 is corrected to 11.7?
A.The mean increases.
B.The median increases.
C.The data set has two modes.
D. The range increases.
Answer:
Which of the following is true if the data point 11.1 is corrected to 11.7?
A.The mean increases.
B.The median increases.
C.The data set has two modes.
D.The range increases.
A.The mean increases.
C.The data set has two modes.
These are the correct answers.
A and C will be correct answers.
What is the mean?The average of a group of variables is referred to as the mean in mathematics and statistics. There are several methods for calculating the mean, including basic arithmetic means (adding the numbers together and dividing the result by the number of observations), geometric means, and harmonic means.
Given that the Data point is corrected from 11.1 to 11.7. As we already know if we increase the value of the data point the mean will rise when a data point is added that is above the mean or subtracted that is below the mean. The mean will drop if one or more data points are removed that are above the mean or added that are below the mean.
Therefore, If data point 1.1 is corrected to 11.7 then the mean will increase and the data set has two modes.
Learn more about mean here:
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find the length of the hypotenuse round your answer to the nearest hundred
For the following data set, calculate the mean and median. Any non-integer answers should be rounded to
the nearest tenth.
5,5, 9, 10, 13, 16, 18, 20, 22, 22
Answer:
(a)Mean=14
(b)Median=14.5
Step-by-step explanation:
Given the data set:
5,5, 9, 10, 13, 16, 18, 20, 22, 22
(a)Mean
[tex]\bar{x}=\dfrac{5+5+9+10+13+16+18+20+22+22}{10} \\=\dfrac{140}{10} \\Mean=14[/tex]
(b)5,5, 9, 10, 13, 16, 18, 20, 22, 22
Since we have two terms in the middle, we take the average to obtain the median.
Median
[tex]=\frac{13+16}{2}\\=\frac{29}{2}\\Median=14.5[/tex]
alice took out 80/20 mortgage on a $232,000 home. what is the amount financed under the first mortgage?
Answer:
The amount financed under this mortgage is $185,600
Step-by-step explanation:
Alice took out an 80/20 mortgage on a $232,000 home.
80/20 mortgage means pay 20% down payment and 80% finance amount of home value.
Home value = $232,000
Now, we need to find finance amount from this hone value of $232,000
Let's calculate the 80% of $232,000 as finance amount;
Finance amount = 80% of 232000
Finance amount = 0.80 x 232000
Finance amount = 185,600
Hence, The amount financed under this mortgage is $185,600
3x^2 and 6x^2 greatest common factor
The PS5 is set to release this year. It will cost $600 but the price will drop by 7.5% per year. How much will a PS5 cost in 2025?
Answer: 562.5
Step-by-step explanation:
Ok...Im PRETTY sure this is right, because you multiply 5 (5 years till 2025) times 7.5 (the rate of decrease in price) and subtract that from 500, so that would be 600-37.5, which gives you 562.5
Okay, so the formula for these types of problems is [tex]yab^x[/tex] I believe, or something like that.
So the price is 600 for y, 1-0.0075 is the b because it is decreasing in value each year, and it is 5 years from now, so 5 for the x.
Plug those in, and you will get about 577.83.
I hope this helps.
If f(3) = -15, then what is f^-1(-15)?
Answer:3
Step-by-step explanation:
This is the basic definition of an inverse. f(3)=-15 means you plugged in 3 in the function, and you ended up with -15. The inverse means you plugged in some number x, and ended up with -15. Because f(3)=-15, the answer is 3.
Which fractions are equivalent to 40%? Check all that apply.
1 . StartFraction 8 Over 100 EndFraction
2 . Two-fifths
3 . StartFraction 8 Over 20 EndFraction
4 . StartFraction 4 Over 10 EndFraction
5 . StartFraction 16 Over 40 EndFraction
Answer:
2/5
8/20
4/10
16/40
Step-by-step explanation:
hope this helps :)
if this helps pls mark me as brainliest:)
The fractions that are equivalent to 40% are 4/10 and 8/20
Fractions and percentagesFractions are written as a ratio of two integers
Given the percentage 40%
Write as a fraction
40% = 40/100
Divide through by 4
40% = 40/100 = 4/10
Multiply both numerator and denominator by 2
4/10 * 2/2 = 8/20
Hence the fractions that are equivalent to 40% are 4/10 and 8/20
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Find the distance between (3,0) and (8,12)
Answer: 13
math-way is helpful with problems like these.
What is the diameter of the circle shown below?
Diameter is 12. Diameter is radius times 2. 6 times 2=12
Answer:
12
Step-by-step explanation:
the diameter is 2x the radius, in this case we have 6 as the radius so naturally the diameter is 12
Help ASAP, question below, 20 points
Answer:
1 more lawn per hour
Step-by-step explanation:
Brian mows one lawn every hour while logan takes 4 hours to mow 2
Brian:
Hr 1 1 Lawn
Hr 2 2 Lawn
Hr 3 3 Lawn
Hr 4 4 Lawn
Logan:
Hr 1 2 Lawn
Hr 2 4 Lawn
Hr 3 6 Lawn
Hr 4 8 Lawn
Which number comes next in the pattern?
17, 21, 25, 29, ?
a. 31
b. 32
c. 33
d. 34
Answer:
C. 33
Step-by-step explanation:
The pattern increases by 4; 17+4=21, 21+4=25, 25+4=29, 29+4=33
A tourist on vacation went scuba diving at a depth where 0.0871 l of gas in his blood is under 12.0 atm of pressure if he instantly boards a plane where his blood will be under 1.50 atm of pressure what will be the volume of gas in his blood
Answer:
0.6968 L
Step-by-step explanation:
We can calculate the resulting volume thanks to Boyle's Law, which tells us The volume is inversely proportional to the pressure:
• If the pressure increases, the volume decreases.
• If the pressure decreases, the volume increases.
Thus:
P1V1 = P2V2
We know that P1 = 12 atm, V1 = 0.0871 L and P2 = 1.5 atm, that is, the value that we do not know about V2, therefore we solve for V2:
V2 = P1V1 / P2
Replacing:
V2 = 12 * 0.0871 /1.5
V2 = 0.6968 L
Which makes sense, since decreasing the pressure increases the volume.
If the Captain and the pirate each shoot once, and the Captain shoots first, what is the probability that the Captain misses the pirate ship, but the pirate hits?
Answer:
1/7
Step-by-step explanation:
The following information is missing:
Captain Nadia has a ship, the H.M.S Crimson Lynx. The ship is two furlongs from the dread pirate Tiffany and her merciless band of thieves.
If her ship hasn't already been hit, Captain Nadia has probability 1/2 of hitting the pirate ship. If her ship has been hit, Captain Nadia will always miss.
If her ship hasn't already been hit, dread pirate Tiffany has probability 2/7 of hitting the Captain's ship. If her ship has been hit, dread pirate Tiffany will always miss.
Let's call:
A: captain hits, P(A) = 1/2
A': captain miss, P(A') = 1 - P(A) = 1/2
B: pirate hits
We want to calculate P(A'∩B). This can be computed as follows:
P(A'∩B) = P(A')*P(B|A')
where P(B|A') means pirate hits given that captain miss. We know that P(B|A') = 2/7. Replacing data into the equation:
P(A'∩B) = (1/2)*(2/7) =1/7
(08.01 MC)
A researcher posts a newspaper advertisement offering $10 in exchange for participation in a short study. The researcher accepts the first 10 people who respond to the advertisement. Which of
following statements true about the sample?
It is not a valid sample because it is only a short study,
It is a valid sample because money is offered to participants.
It is a valid sample because the first 10 people were selected to participate.
It is not a valid sample because it is not a random sample of the population
Answer:
The correct answer is the last on that’s states: it is not a valid sample because it is not a random sample of the population.
Step-by-step explanation:
When a researcher wants to know about the same thing, he/she has to take a sample from the population.
Example, consider a researcher wants to know how many hours the students study at home in a week, so the researcher has to take the sample from the student population.
Here, he/she gives the advertisement and offers $10 for 10 people. Therefore for anyone can come they might not required for a particular study.
Therefore, the answer is the last one.
Answer:
d
Step-by-step explanation:
An amusement park charges an admission fee of 25 dollars per person. The cost, C (in dollars), of admission for a group of p people is given by the following function.
Answer:
c=25p
Step-by-step explanation:
c= total cost
p=number of people
total cost is the numer of people times 25 dollars each
What is the value of the product (3 – 21)(3 + 2/)?
5
9 + 4
9 - 41
13
The product of (3 – 2i) and (3 + 2i) simplifies to 13 after expanding and simplifying the expression, canceling out the imaginary terms.
To find the product of (3 – 2i) and (3 + 2i), we'll use the distributive property:
(3 - 2i)(3 + 2i) = 3(3) + 3(2i) - 2i(3) - 2i(2i)
= 9 + 6i - 6i - 4i²
Since i² = -1, substitute -1 for i²:
= 9 + 6i - 6i - 4(-1)
= 9 + 6i - 6i + 4
The terms with imaginary parts cancel out:
= 9 + 4
= 13
Thus, the product of (3 – 2i) and (3 + 2i) equals 13.
Complete Question:
What is the value of the product (3 – 2i)(3 + 2i)?
5
9 + 4i
9 – 4i
13
A child has toy blocks that contain the numbers 1 through 80. What is the probability that the will pick up a number that is not a multiple of 11?
Give your answer in fraction form.
Answer: 7/80
Step-by-step explanation: There are 7 multiples of 11 between 1 and 80, so you just put the 7 over the total number which is 80
Geometry help for an idiot lol pls help
Answer:
B
Step-by-step explanation:
The transformation is proved through comparing the size of the bigger triangle to the smaller triangle in the individual sides. So the size of A F/ AB should be equal to AG / AC due to transformations making A F and AG the same times longer as AC and AB. By performing those calculations, you get 3.
1
Complete the following proof by putting the reasons in order. Click on the proof to make it larger.
Remember, draw the diagram on your paper so you can label it!
Drag and drop the reasons so they are in the correct order for the proof.
SAS
Given (1)
Given (2)
CPCTC (Congruent parts of congruent triangles are congruent)
Reflexive Property
Answers:
Angle MNP is congruent to Angle OPN- Given 1MN is congruent to OP- Given 2Np is congruent to NP- Reflexive PropertyTriangle MNP is congruent to Triangle OPN- SASMp is congruent to No- CPCTCI've attached a diagram that visually shows the congruency!!
The map shows the length (in miles) of shoreline along the Gulf of Mexica for each state that borders the body of water. What is the probability that a ship coming ashore at a random point in the Gulf of Mexico lands in the given state? Round your answers to the nearest whole percent.
Answer:
TX- 23%
AL- 3%
FL- 47%
LA- 24%
MS- 3%
Step-by-step explanation:
Final answer:
To find the probability of a ship coming ashore in a given state, divide the length of its shoreline by the total length of the Gulf of Mexico's shoreline.
Explanation:
To find the probability of a ship coming ashore at a random point in the Gulf of Mexico landing in a given state, we need to divide the length of the shoreline of that state by the total length of the Gulf of Mexico's shoreline. Let's assume there are 4 states that border the Gulf of Mexico: State A with 100 miles of shoreline, State B with 150 miles, State C with 200 miles, and State D with 250 miles. The total shoreline length of the Gulf of Mexico would be 700 miles (100 + 150 + 200 + 250).
Now, we can find the probability for each state by dividing its shoreline length by the total shoreline length. For example, for State A, the probability would be 100/700 which is approximately 0.1429 or 14.29%.
Following the same calculation, the probability for State B is 150/700 which is approximately 0.2143 or 21.43%, the probability for State C is 200/700 which is approximately 0.2857 or 28.57%, and the probability for State D is 250/700 which is approximately 0.3571 or 35.71%.
Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis.
α = 0.08; H1 is μ ≠ 3.24
a. ±1.75
b. 1.75
c. ±1.41
d. 1.41
Answer:
The critical z value used to test a null hypothesis is ±1.75.
Step-by-step explanation:
We are given that the data has a normal distribution and the number of observations is greater than fifty.
Also, the hypothesis given to us is;
Null Hypothesis, [tex]H_0[/tex] : [tex]\mu[/tex] = 3.24
Alternate Hypothesis, [tex]H_1[/tex] : [tex]\mu\neq[/tex] 3.24
This means that our test is two-tailed because in the alternate hypothesis we are concerned with mean value is less than or greater than 3.24.
Also, level of significance (α) = 0.08
Now, for two-tailed test level of significance becomes = [tex]\frac{\alpha}{2} =\frac{0.08}{2}[/tex] = 0.04
So, in the z-table the critical value of x at 4% significance level is given as 1.75.
Since, this is two-tailed test so the critical z value used to test a null hypothesis would be ±1.75.
At the 4% significance level, the z-value is 1.75. Therefore, for the two tailed test the z value becomes [tex]\pm[/tex] 1.75. and this can be determined by using the given data.
Given :
Assume that the data has a normal distribution and the number of observations is greater than fifty.α = 0.08H1 is μ ≠ 3.24According to the hypothesis test:
Null Hypothesis -- [tex]\rm H_0:\mu=3.24[/tex]
Alternate Hypothesis -- [tex]\rm H_1 : \mu\neq 3.24[/tex]
According to the given data, the significance level is given by α = 0.08. So, the significance level for the two tailed test is given by:
[tex]\rm \dfrac{\alpha }{2}=\dfrac{0.08}{2}=0.04[/tex]
So, for the 4% significance level, the z-value is 1.75. Therefore, for the two tailed test the z value becomes [tex]\pm[/tex] 1.75.
So, the correct option is a).
For more information, refer to the link given below:
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Tyler poured a total of 15 cups of water into 2 equal-sized bottles and filled each bottle. How much water was in each bottle?
||||
☆Thanks for the help guys!☆
Step-by-step explanation:
So 2 bottles and 15 cups
15 ÷ 2 = 7.5
He poured 7.5 cups of water in each bottle
Answer:
if you need a diagram here you go
Step-by-step explanation:
Helllppppppppp pleaseeeeeee
Answer:
17 cm
Step-by-step explanation:
Because if you use the Pythagorean threom a^2 + b^2 = c^2. 8 squared is 64 and 15 squared is 225 add those and you get 289, and 17 squared is 289.
A principle square root is always:?
Answer:
Every positive number "n" has two square roots. One of them is positive ( or ) , and the other is negative ( ). Together, these are denoted as . The principal square root is the positive number square root. Unless otherwise stated, "the square root" of a number refers ONLY to the principal square root.
Step-by-step explanation:
Answer:
positive #square root
Step-by-step explanation: