Answers
Answer:
Step-by-step explanation:
Related Questions
Solve for x.
A) 30
B) 45
C) 60
D) 90
Answers
2x+x=90
3x=90
X=30
A
Compare the theoretical and experimental probabilities. Jayson draws a card from a deck, replaces it, and draws again. He records the number of times he draws a queen.
Number of Trials: 20, 25, 100
Number of Queens: 5, 3, 9
The theoretical probability is: ?%
Answers
ANSWER:divide 20/5, 25/3, 100/9 those answers are: 4, 8.3, 11.1. All we really need is 100/9=11.1 because it wants a percent so the answer is 11.1%
The statement that is false on Jose drawing cards from the deck is B. For a given number of selections, we can use Joseph's graph to find the number of diamonds that he has picked so far.
What is probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
here, we have,
given that,
Jose draws a card from a deck replaces it and draws again he records a number of times he draws an ace. He decides to record the total number of aces that he selects and calculates the proportion of aces that he has selected so far after each pick. He then constructs a graph to visualize his results.
as the graph can not be used:
Jose only recorded the number of aces he selected, not the number of diamonds. Therefore, we cannot use his graph to find the number of diamonds he picked.
However, if we were to use the graph to find the number of aces that Jose has picked so far, then we would be successful. The other statements are true as Jose recorded the cards he took and the cards were replaced after each pick.
Find out more on probability at
brainly.com/question/12823386
#SPJ2
The full question is:
Jose draws a card from a deck replaces it and draws again he records a number of times he draws an ace. He decides to record the total number of aces that he selects and calculates the proportion of aces that he has selected so far after each pick. He then constructs a graph to visualize his results. Which of the following statements is FALSE?
A. The theoretical probability for selecting an in each pick is 1 / 13.
B. For a given number of selections, we can use Jose's graph to find the number of diamonds that he has picked so far.
C. This is an example of the law of large numbers.
D. The relative frequency of selecting an ace changes with the increase in number of selections.
HELP MEEEEEEEEEE PLS
If f(n) = n2 - 2n, which of the following options are correct?
Select all that apply.
f(2) = 0
f(-2) = 0
f(1) = 3
f(5) = 35
f(-4) = 24
Answers
Answer:
f(2) = 0
f(-4) = 24
Step-by-step explanation:
[tex] \hookrightarrow \: { \tt{ \sf{f(n) = {n}^{2} - 2n }}}[/tex]
When n is 2 ✔
[tex] \dashrightarrow \: { \tt{f(2) = {(2)}^{2} - (2 \times 2) = 4 - 4 = 0}} \\ [/tex]
When n is -2 ✖
[tex] \dashrightarrow { \tt{ {( - 2)}^{2} - (2 \times - 2) = 4 + 4 = 8 }}[/tex]
When n is 1 ✖
[tex] \dashrightarrow{ \tt{f(1) = {(1)}^{2} - (2 \times 1) = - 1 }}[/tex]
When n is 5 ✖
[tex] \dashrightarrow{ \tt{f(5) = {(5)}^{2} - (2 \times 5) = 15}}[/tex]
When n is -4 ✔
[tex] \dashrightarrow{ \tt{f( - 4) = {( - 4)}^{2} - (2 \times - 4) }} \\ { \tt{ = 16 + 8}} \\ { \tt{ = 24}}[/tex]
BRAINLIEST + 50 POINTS (answers in the picture below)
Which statement best describes a graph of paired points that form a proportional relationship?
Answers
The circle graph describes the distribution of preferred music from a sample of 400 randomly selected middle school students.
a circle graph titled preferred music, with five sections labeled rock 13 percent, hip hop 25 percent, pop 35 percent, classical 13 percent, and jazz 14 percent
Which of the following conclusions can we draw from the circle graph?
Pop is the preferred music for 35 students.
Jazz is the preferred music for 56 students.
Together, Hip Hop, Rock, and Jazz are the preferred music for less than half the students.
Together, Hip Hop and Pop are the preferred music for 260 students.
Answers
Answer:
Step-by-step explanation:
(i) Number of people who are into classical music =10%
10% of pie chart =20 people.
1% ⇒ 10/20 ×100
and 100% ⇒ 10/20 ×100 × 100/ 100
⇒200 people.
(ii) Light chart represent maximum number as it is 40% of total. ∴ Light music is liked by maximum people.
(iii)
Number of CD's of classical music ⇒ 100/10 × 1000(10%) =100
umber of CD's of semi classical music = 100/20 × 1000(20%) =200
just like that 30% is 300, 40% is 400.
Hope this helped :)
I don't know B. :⊂ Find the answer for me please?
Answers
Answer:
For A: The answer is (79-2x) degrees
For B: The answer is (169-2x) degrees
I hope this answer helped you out!
Step-by-step explanation:
I took the test!!!
A flower was 1.6 meters high one week ago. In 7 days it grew 11 centimeters. What is the current height of the flower?
Answers
Answer:
The current height of the flower is 1.71 meters!
I hope this answer helped you!!!
Step-by-step explanation:
I took the test!!!
Drag each expression to show whether it is equivalent to 36x+9
or 9(4x−1)
.
Answers
In order to find out what 36x + 9 is equivalent to,, we must factor out 9 from the expression. Once we do this you will find that this expression is equivalent to 9(4x + 1),, or option E.
Next we will look at the expression 9(4x-1). In order for us to find out the equivalent to this expression,, we must first multiply each term in the parenthesis by 9.
9 × 4x - 9
Now calculate the product
36x - 9
This means that the equivalent for this expression is
36x - 9,, or option A.
Lastly,, we will look at the final expression given which is 4(9x + 2). The first step for finding the equivalent of this expression is to multiply the numbers in the first parenthesis together.
(36x) + (4 × 2)
Now multiply the numbers in the second parenthesis together.
(36x) + 8
Remove the parenthesis
36x + 8
Now factor out 4 from the expression to get your final answer.
4(9x + 2)
This means that the last expression is equivalent to 4(9x + 2),, or option C.
Let me know if you have any further questions
Help me please!!!!!! ty!
Answers
Answer:
4096/729
Step-by-step explanation:
((-4/3)^2)^3
(16/6)^3
4096/729
(-4/3)^2 = 16/6 because squaring of negative numbers always leads to positive numbers
a sample of 500 schools in a state results in an average number of students per grade level of 178.6 students, with a margin of error of 45.2 if there are 3250 high schools in the state, what is the estimated number of students per grade level?
Answers
The margin of error is given as 45.2, which means that we can be 95% confident that the true population average number of students per grade level falls within the range of the sample average plus or minus the margin of error.
So, the confidence interval is:
178.6 ± 45.2
To estimate the population average number of students per grade level, we can take the midpoint of the confidence interval:
(178.6 + (178.6 - 45.2)) / 2 = 311.6
Therefore, the estimated number of students per grade level in the state is 311.6
Do you notice any points on the graphs that are an extreme value? What does this tell you?
Answers
The Perseverance Mars rover uses a special coring bit to drill out a rock cylinder 13 mm in diameter. As the rover drills, the rock core moves into one of 38 sample tubes. If the coring bit collects a rock cylinder 60 mm in length, what is the volume of the rock in the sample tube?
Answers
Answer:
235
Step-by-step explanation:
PLEASE HELP ME
Solve the equation using inverse operations. Check your solutions. In your final answer, include all of your work.
1÷4 x³ = –27÷4
Answers
1. First, divide both sides of the equation by 4.
1÷4 x³/4 = –27/4/4
2. Next, on the left side of the equation, use inverse operations to get rid of the division. This will give us x³ = –27.
3. Then, to solve for x, take the cube root of both sides of the equation.
Cube root of x³ = cube root of –27
4. To check your answer, plug in -3 for x in the original equation and solve.
1÷4 x³ = –27/4
1÷4 (-3)³ = –27/4
1÷4 (-27) = –27/4
1 = 1
Since 1 = 1, the answer checks out.
Therefore, the solution to the equation is x = -3.
Answer:
-3, 3+3i[tex]\sqrt{3}[/tex]/2, 3-3i[tex]\sqrt{3}[/tex]/2
please answer question in the image below ty <3
Answers
Answer:
Step-by-step explanation:
(9x+13)
Which unit rate corresponds to the proportional relationship shown in the graph?
Will mark brainliest !!
Answers
Haven't done this kinda problem in a while but I got 4/3 cm/s
Step-by-step explanation:
Using the coordinates given i put them into the formula:
y1 - y2
m=_________
x1 - x2
That gave me -16/-12, I simplified & got 4/3.
To find the slope you need at least two points on a line
The formula would be m=y2-y1/x2-x1
16-0/12-0
16/12
Simplified we would divide by 4 since it goes into both numbers
4/3 as the answer
Answer all of these questions.
1) A survey of 4,000 Americans found that 28% did not vote in the local election.
Population:
Sample:
2) The average points scored by every third member of the basketball team is 13.6.
Population:
Sample:
3) A study found that 55% of college graduates took out student loans to pay for college.
Population:
Sample:
4) In a Washington Post poll, 72% of readers indicated they were happy with the economy.
Population:
Sample:
Answers
Answer:
Population: All Americans eligible to vote in the local election
Sample: 4,000 Americans who were surveyed
Population: All members of the basketball team
Sample: Every third member of the basketball team
Population: All college graduates
Sample: The group of college graduates studied in the study
Population: All readers of the Washington Post
Sample: The group of readers who responded to the poll
Answer: Population: All Americans eligible to vote in the local election
Sample: 4,000 Americans who were surveyed
Population: All members of the basketball team
Sample: Every third member of the basketball team
Population: All college graduates
Sample: The group of college graduates studied in the study
Population: All readers of the Washington Post
Sample: The group of readers who responded to the poll
Step-by-step explanation: That's gotta be it
Use equivalent fractions to order these fractions from least to greatest: 2 over 3 , 1 over 2, 4 over 12, 5 over 6 . Explain the steps you took to find your answer.
Answers
Answer:
so u take 4/12 and do it to 1/3 then try to do lest to greatest
Step-by-step expla
2/3 5/6 1/2 1/3 try
Triangle ABC is a scale drawing of Triangle XYZ, as shown.
Based on the information shown in these triangles, which of the following is a true statement?
A) The length of side XZ is 11.5.
B) The length of side XZ is 28.
C) The measure of angle A is equal to the measure of angle Z.
D) The measure of angle A is not equal to any of the angle measures of Triangle XYZ.
Answers
Answer: B the side length of XZ is 28
Step-by-step explanation:
to find the scale factor, one of the methods is to divide the side length of one triangle by the same side length of the other triangle.
for example with this problem, the length of XY is 42 while side length AB is 12. 42/12 is 3.5. we know that the side length that corresponds with XZ is 8 so multiply it by 3.5 to get the answer of 28.
Answer:
B
Step-by-step explanation:
Since we know that triangle XYZ is a scale model of ABC then if we find the amount XYZ is bigger then ABC then we can find the answer. Line CB is the corresponding line to ZY and ZY is 3.5x greater then CB. Apply the same logic to AC and we get 8*3.5=ZX 8*3.5=28 so ZX=28.
create equivalent ratios by completing a ratio table for each. 1. 7 to 5 ( using multiplication), 2. 50:20 ( using division), 3. 3/4 (using multiplication), 4. 18:48 ( using division)
ASAP
Answers
Step-by-step explanation:
7 : 5
[tex] \binom{7 \: 14 \: 21 \: 28 \: 35}{5 \: 10 \: 15 \: 20 \: 25} [/tex]
50 : 20
[tex] \binom{50 \: 25 \: 5}{20 \: 10 \: 2} [/tex]
3 : 8
[tex] \binom{3 \: 6 \: 9 \: 12 \: 15 \: 18}{8 \: 16 \: 24 \: 32 \: 40 \: 48} [/tex]
18 : 48
[tex] \binom{18 \: 9 \: 6 \: 3}{48 \: 24 \: 16 \: 8} [/tex]
Ratios must always remain proportional;
Whenever you multiply or divide one part by a number, you must do the same to the other part/s;
When it comes to division, you can divide by all common factors
As you as see by the eraser marks. I’ve been working hard. Pls help me!
Answers
(22 - 4) / 6
The answer would be 3 miles on each of the six days
Answer:
In a week we have 7 days.
On the first day, Clare runs 4 miles.
On the other six days, she runs the same distance, let's call it D.
In total, she runs 22 miles.
Then:
4mi + 6*D = 22 mi
6*D = 22mi - 4mi = 18mi
D = 18mi/6 = 3mi.
Then the other 6 days, Clare runs 3 miles
Hope it helped! :)
or
Hayley invited a friend over for dinner. She wants to make personal pies to serve for dessert. Hayley makes 1
1
5
cups of dough to use for the crust and splits the dough evenly between 2 pies. How much dough does Hayley use for each pie?
Use the model to help answer the question.
Answers
Answer:
Step-by-step explanation:
two
Four swimmers are training for a relay race. Each day they practice by swimming at least 1,600 yards total. The friends evenly divide the number of yards they swim.
Write and solve an inequality to determine how many yards each friend will swim. Show all your work.
Answers
Step-by-step explanation:
Rewrite the false statement to make it true:
Answers
Answer: more than 500 shirts will be washed each day
Step-by-step explanation:
jenna wants to wrap a shipping box shaped like a rectangular prism. The box is 22 inches tall and has a square base with sides that each measure 5 inches. How much paper will she use?
Answers
Answer: 420
Step-by-step explanation:
-2 1/3 ÷ 4 2/3
Please help, I will grant the 1st person to answer correctly brainliest.
Answers
Answer: -1/2
Step-by-step explanation:
1. We know that -2 1/3 is also equal to -7/3, because we can multiply the denominator by the main number, and add the numerator.
2. We can do the same with 4 2/3, which would be 14/3.
3. Now, we are left with -7/3 divided by 14/3.
4. To make this easier, we can flip flop the 14/3 so we can multiply instead of divide, which leaves us with -7/3 x 3/14.
5. -7/3 x 3/14 = -21/42
6. We can simplify this to -1/2.
could ya please help me?
Answers
Answer:the trcks what to do that much because 20 avb=vd 55 is 899
Step-by-step explanation:
The expression 9.00x+4.50y represents the total amount of money Harriet earns at her two jobs, where x represents the number of hours worked at job X and y represents the number of hours worked at job Y. Which shows an equivalent expression to the given expression and correctly describes the situation?
4.50(2x+y), which shows that Harriet earns twice as much per hour at job X than job Y.
4.50(2x+y), which shows that Harriet earns 4.50 times as much per hour at job X than job Y.
13.50xy, which shows that Harriet earns $13.50 each hour she works.
13.50xy, which shows that Harriet earns $13.50 every two hours she works.
Answers
13.50xy, which shows that Harriet earns $13.50 for each hour she works.
This expression represents the total amount of money Harriet earns at both jobs, where x represents the number of hours worked at job X and y represents the number of hours worked at job Y. The coefficient of xy, which is 13.50, represents the amount of money Harriet earns per hour, regardless of which job she is working. Therefore, this expression accurately reflects the situation described
What's the median for these set of numbers and do it step by step explanation. 3,2,3,4,3,5,7,5,4
Answers
Choose one point on the scatterplot. What does it represent?
What type of data is best for scatter plots? please don't give a short once sentence explanation
Answers
Answer:
decrease
Step-by-step explanation:
this graph is showing a decorative response to whatever content.
Can someone pls help this is due today before 6!
Answers
Answer: .25
Step-by-step explanation:
on x bar 0 and y bar 0 connect them at a 90 angle and from the middle that go diagonal top right.
