There are 9 marbles in a bag. 4 of those marbles are red,
What is the probability of picking a red marble randomly from the bag?
Answers
Answer:
4/9
Step-by-step explanation:
I think because you take the total and the amount of red you have
The probability of picking a red marble randomly from the bag will be equal to 0.44 .
It is given that there are total 9 marbles in a bag out of which 4 are red marbles.
We have to find the probability of picking a red marble randomly from the bag.
What do you mean by probability ?
Probability is the possibility or chance of an event to occur and is given by ratio of no. of favorable outcomes to total no. of outcomes.
As per the question ;
The total no. of outcomes (marbles) = 9
The no. of favorable outcomes (red marbles) = 4
We know that , probability is given by ;
Probability = No. of favorable outcomes / Total no. of outcomes
So ;
The probability of picking a red marble randomly from the bag will be equal to ;
Probability = 4 / 9
P(E) = 0.44
Thus , the probability of picking a red marble randomly from the bag will be equal to 0.44 .
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Related Questions
On Saturday, 8 children made a sandcastle in 5 hours. On Sunday, two more children joined the group. How long it will take the children to build a new sandcastle on Sunday?
Answers
Answer:
Only 4 hours
Step-by-step explanation:
8 children made a sandcastle in 5 hours. 8:5 ratio
10 children made a sandcastle in ? 10:? ratio is it?
Remember, It's inversely proportional, which means, more people, less time to take it to make the sand castle. So we would do, 8*? = 10 that would be 1.25. 8*1.25=10. then, do 5/1.25, cause it's "inversely proportional. I'm not sure if this is right, but I think it is 4 hours.
The 10 children will spend 4 hours on Sunday making the sandcastle.
Number of people = 1/ time taken
8 = k / 5 hours ; where k = constant of proportionality Solve for k : 8 × 5 = k k = 40On Sunday :
Number of people = 2 + 8 = 10
Number of people = 1/ time taken
10 = k / t
Put k = 40 and solve for t
10 = 40 / t
10t = 40
t = 40/10
t = 4
Therefore, it will take the 10 children 4 hours on Sunday to make the sandcastle.
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(b) If you put $7750 in the ATM each day, what percent of the days in a month should you expect to run out of cash?
Answers
The percent of the days in month that the cash will run out is given as: 23.33%. See the computation below.
What is the explanation that justified the above answer?Money put in ATM per day=$7750
We have to find the percent of days in a month you should expect to run out of cash.
From the given information
There are 7 days in which you run out cash more than $7750
Assuming that the total number of days in a month = 30
Hence, we can arrive at the above value by saying:
(Corresponding days/Total number of Days) * 100
From we above we state:
(7/30) * 100
= 23.33%
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Which statement describes how to determine if a relation given in a table is a function?
If none of the output values are repeated, the relation is a function.
If none of the input values are repeated, the relation is a function.
If any of the input values are equal to the output values, the relation is a function.
If all the output values are paired with the same input value, the relation is a function.
Answers
Answer:
If none of the input values are repeated, the relation is a function.
Step-by-step explanation:
When all outputs have a different input, its a function.
Answer:
B
Step-by-step explanation:
Did it on edge 100%
2^n * 3 * 5^m
Write 8A as a product of powers of its prime factors
Answers
8A = \(2^{n + 3} * 3 * 5^{m}\) is a product of powers of its prime factors of Polynomials.
What is Polynomials ?
Sums of terms of the form kxn, where k is any number and n is a positive integer, make up polynomials. For instance, the polynomial 3x+2x-5. a description of polynomials. The concepts degree, standard form, monomial, binomial, and trinomial are all covered in this video.Given - \(2^{n} * 3 * 5^{m}\)
The numbers 2, 3 and 5 are already prime numbers.
Multiplying 8 on both sides
8 × A = \(2^{n} * 3 * 5^{m} * 8\)
Expressing 8 as the product of prime numbers
8A = \(2^{n} * 3 * 5^{m} * 2 * 2 * 2\)
8A = \(8A = 2^{n} * 3 * 5^{m} * 2^{3}\) (When the base is same, the power is added)
Adding the power of base 2, we add n and 3
8A = \(2^{n + 3} * 3 * 5^{m}\)
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Given A = {10, 11, 12, 13}, B = {10, 12, 14, 16}, and C = {7, 8, 9, 10, 11}, find
A ∪ B
A ∩ B
A ∪ C
A ∩ C
B ∪ C
B ∩ C
Answers
The (A ∪ B) ∩ (A ∪ C) ∩ (B ∪ C) ∩ (B ∩ C) ∩ C is an empty set {}.To find the sets A ∪ B, A ∩ B, A ∪ C, A ∩ C, B ∪ C, and B ∩ C, we can perform the following operations:
A ∪ B: The union of sets A and B includes all unique elements from both sets, resulting in {10, 11, 12, 13, 14, 16}.
A ∩ B: The intersection of sets A and B includes only the common elements between the two sets, which are {10, 12}.
A ∪ C: The union of sets A and C combines all unique elements, resulting in {7, 8, 9, 10, 11, 12, 13}.
A ∩ C: The intersection of sets A and C includes only the common elements, which is {10, 11}.
B ∪ C: The union of sets B and C combines all unique elements, resulting in {7, 8, 9, 10, 11, 12, 14, 16}.
B ∩ C: The intersection of sets B and C includes only the common elements, which is an empty set {} since there are no common elements.
Finally, performing the remaining operations:
(A ∪ B) ∩ (A ∪ C): This is the intersection of the union of sets A and B with the union of sets A and C. The result is {10, 11, 12, 13} since these elements are common to both unions.
(B ∪ C) ∩ (B ∩ C): This is the intersection of the union of sets B and C with the intersection of sets B and C. Since the intersection of B and C is an empty set {}, the result is also an empty set {}.
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The diameter of this beach ball is 12 inches.
A beach ball.
Apply the formula for the volume of a sphere to determine how much air it can hold. Use the calculator to multiply by π. Round to the nearest hundredth.
Sphere V = 4
3
πr3
How much air can the beach ball hold?
Answers
Answer:
288π or 904.78
Step-by-step explanation:
We know that the diameter of this beach ball is 12 inches and we want to determine how much air it can hold using the formula for the volume of a sphere which is \(\frac{4}{3}\) × π × r³ where 'r' is the radius. In the question we are given the diameter not the radius but we can half the diameter to find the radius so 12 ÷ 2 = 6. The radius of the beach ball is 6 inches so let's work out how much air it can hold.
Volume = \(\frac{4}{3}\) × π × r³
→ Let's substitute in the values
Volume = \(\frac{4}{3}\) × π × 6³
→ Simplify
Volume = \(\frac{4}{3}\) × π × 216
→ Simplify further
Volume = 288π or 904.78
The amount of air can the sphere shape beach ball hold is 208π or 904.78 inches.
What is sphere?
The "set of all points in 3 dimensional space is lying the same distance from the given points or center" is called sphere.
According to the question,
Diameter of sphere shape beach ball is 12inches
Radius of sphere shape beach ball is 12/2 = 6inches
Volume of sphere = \(\frac{4}{3}\) × π × r³
= \(\frac{4}{3}\) × \(\frac{22}{7}\) × (6)³
= 904.78inches
Hence, the amount of air can the sphere shape beach ball hold is 208π or 904.78 inches.
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-2y + 6 = -12
Please help me what is Y
Answers
Answer:
y = 9
Step-by-step explanation:
-2y + 6 = -12
-6 -6
-2y = -18
divide both sides by -2
y = 9
Hope this Helps!!!
Answer: y = -3
Step-by-step explanation:
Express cos M as a fraction in simplest terms.
Answers
\(\begin{array}{llll} \textit{using the pythagorean theorem} \\\\ a^2+o^2=c^2\implies a=\sqrt{c^2 - o^2} \end{array} \qquad \begin{cases} c=\stackrel{hypotenuse}{30}\\ a=\stackrel{adjacent}{MN}\\ o=\stackrel{opposite}{18} \end{cases} \\\\\\ MN=\sqrt{ 30^2 - 18^2} \implies MN=\sqrt{ 576 }\implies MN=24 \\\\[-0.35em] ~\dotfill\\\\ \cos(M )=\cfrac{\stackrel{adjacent}{24}}{\underset{hypotenuse}{30}} \implies \cos(M)=\cfrac{4}{5}\)
PLS ANSWER ASAP!!!!!!!!! I WILL GIVE EXTRA POINTS AND BRAINLIEST FOR THE CORRECT ANSWER!!!
You need to find a Number with 10 digits.
The first digit is divisible by 1
The second digit is divisible by 2
The third digit is divisible by 3
The fourth digit is divisible by 4
The fifth digit is divisible by 5
The sixth digit is divisible by 6
The seventh digit is divisible by 7
The eigth digit is divisible by 8
The ninth digit is divisible by 9
The full number is divisible by 10
Answers
Answer:
3816547290
Step-by-step explanation:
this is from a puzzle called notable numbers
Help plz plz if u do u will get 10 points
Answers
Answer:
C? Sorry if im wrong
Step-by-step explanation:
Answer:
B (10,40)
E (6,24)
Step-by-step explanation:
(2,8) is equal to (10,40) and (6,24)
Outline at least 4 methods of solving linear systems.
Answers
The four steps for solving linear systems are;
Graphical methodBy substitution methodBy elimination methodBy augmented matrixSolving linear systemsA variety of ways for solving linear systems exist which include;
Graphical method by seeking the point of intersection.Substitution method involving making a variable the subject of the formula and substituting accordingly.Elimination involves manipulation to get rid of a variable by means of subtraction or addition.Augmented matrices are used to solve linear systems.Read more on solving linear systems;
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Answer:
graphing
algebraic methods
using inverse matrices
transforming an augmented matrix to reduced row echelon form
Cramer’s rule
Step-by-step explanation:
A house on the market was valued at 419,000. After several years, the value increased by 18%. By how much did the house's value increase in dollars? What is the current value of the house?
Answers
The value of the house was increased by $75420 and the current value of the house is $494420.
What is the percentage?A percent is a measurement in hundredths. By dividing the percentage value by 100, percentages can be transformed into decimals and fractions.
Given, A house on the market was valued at 419,000.
Then after several years, the value increased by 18%.
Therefore, The increase in value is,
= (18/100)×41900.
= $75420.
Hence, The current value of the house is,
= $(419000 + 75420).
= $494,420
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Five hundred draws are made at random from the box: True or false? (a) The expected value for the percentage of 1’s among the draws is exactly 25%. (b) The expected value for the percentage of 1’s among the draws is around 25%, give or take 2% or so. (c) The percentage of 1’s among the draws will be around 25%, give or take 2% or so. (d) The percentage of 1’s among the draws will be exactly 25%. (e) The percentage of 1’s in the box is exactly 25%. (f) The percentage of 1’s in the box is around 25%, give or take 2% or so.
Answers
Five hundred draws are made at random from the box:
\([60,000 \ |0|'s \ \ \ 20,000 \ |1|'s]\)
True or false?
(a) The expected value for the percentage of 1’s among the draws is exactly 25%.
(b) The expected value for the percentage of 1’s among the draws is around 25%, give or take 2% or so.
(c) The percentage of 1’s among the draws will be around 25%, give or take 2% or so.
(d) The percentage of 1’s among the draws will be exactly 25%.
(e) The percentage of 1’s in the box is exactly 25%.
(f) The percentage of 1’s in the box is around 25%, give or take 2% or so.
Answer:
(a) True
(b) False
(c) True
(d) False
(e) True
(f) False
Step-by-step explanation:
From (a);
We can infer that the expected value for the percentage of 1’s among the draws is exactly 25% is true.
Because ; average of the box = \(\dfrac{20000}{60000+20000}\)
average of the box = \(\dfrac{20000}{80000}\)
average of the box = 0.25
Thus; the expected value is said to be ; 25%
(b) The expected value for the percentage of 1’s among the draws is around 25%, give or take 2% or so.
Well!, this is false.
Because the expected value for the percentage of 1's among the draws is 25% ,as a result of that there won't be any give and take due to the fact that the expected value involves no probability error.
(c) The percentage of 1’s among the draws will be around 25%, give or take 2% or so.
This is true.
If we determine the standard deviation of the box ; we have :
\(SD =\sqrt{\dfrac{20000}{80000}*\dfrac{60000}{80000}} \\ \\ SD= 0.433\)
The standard error of the sum can now be calculated as :
= 0.433 ×√500
= 9.682
The standard error of the percentage of 1's is:
\(=\dfrac{9.682}{500}*100\)
= 1.9364%
≅ 2%
(d) The percentage of 1’s among the draws will be exactly 25%
It is clear and obvious that this is false because if we look at what we have in (c) from above ; we will realize that the percentage of 1's among the draws will be around 25% and not exactly 25%
(e) The percentage of 1’s in the box is exactly 25%.
Yes; this is true. The percentage of 1’s in the box is exactly 25%.
(f) The percentage of 1’s in the box is around 25%, give or take 2% or so.
No; this is false. The percentage of 1’s in the box is exactly 25% and not around 25%, give or take 2% or so.
2x² + 5x, what will it a Perfect Square? make
Answers
Answer:
2x² + 5x + c = 0
For this quadratic equation to have one double root, the discriminant must equal 0.
5² - 4(2)(c) = 0
25 - 8c = 0
c = 25/8
2x² + 5x is not a perfect square because the coefficient of x², 2, is not a perfect square.
Explanation:2x² + 5x is not a perfect square.
A perfect square is an expression that can be factored into the square of a binomial. To determine if an expression is a perfect square, we can look at the coefficient of x². In this case, the coefficient is 2, which is not a perfect square.Learn more about Perfect Square here:https://brainly.com/question/34063927
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Helllllllpppppp pls help me
Answers
Answer:
there you go!! it's correct dont worry
which parent functions have a y-intercept at (0,0)? select all that apply
Answers
Answer: A,E or F.
Step-by-step explanation: That's the only ones that have X's and then x is 0
an object travels 4/5 miles in 1/2 hour. what is her speed?
Answers
Answer:
\(\huge\boxed{\sf v = 0.4\ mph}\)
Step-by-step explanation:
Given data:Distance = S = 4/5 miles = 0.2 miles
Time = t = 1/2 hour = 0.5 hours
Required:Speed = v = ?
Formula:v = S/t
Solution:v = 0.2/0.5
v = 0.4 mph\(\rule[225]{225}{2}\)
Answer: 8/5 mph
Step-by-step explanation:
According to definition, an object's speed is determined by:
s=d/t where,
d is the object's travel distance, and t is the amount of time it takes.
We can replace these values with:
Since, s= (4/5) / (1/2) mph
=> s= 8/5 mph
The object's speed to cover 4/5 miles in 30 minutes is: 8/5 mph
Which expression converts 100 inches per minute to feet per minute??
Answers
Answer:
100 inches/1 minute X 1 foot/12 inches =(100/12) feet/minute = 8 1/3 feet/minute
what equals 29 in multiplation
Answers
Answer: the only thing there is 1x29
Step-by-step explanation: hope it helps
What is the volume of a cylinder, in cubic cm, with a height of 19cm and a base
diameter of 10cm? Round to the nearest tenths place.
Answers
Answer:
549.8 cm (cubed)
Step-by-step explanation:
D3lt4 m4th 4n$wer
Write a coordinate rule for the composition 
Answers
Answer:
so basically u do that and then u do that and then
Step-by-step explanation:
8
A residential community was polling households to find out whether they wanted to get their TV signal from a satellite or cable. The results are shown in the Venn diagram.
A circle labeled satellite 55 overlaps a circle labeled cable 75. Overlap is labeled 12. 4-column table with 3 rows. First column has no label with entries satellite, not satellite, total. Second column is cable with entries blank, 51%, blank. Third column is not cable with entries a, b, blank. Fourth column is labeled total with entries blank, blank, 100%.
What are the values of a and b in the relative frequency table for the survey results? Round answers to the nearest percent.
a = 82%, b = 3%
a = 38%, b = 50%
a = 38%, b = 3%
a = 93%, b = 19
Answers
The correct answer is:
a = 43%
b = 88%
To determine the values of a and b in the relative frequency table, we need to analyze the information provided in the Venn diagram and the given table.
From the Venn diagram, we can gather the following information:
The circle labeled "satellite" has a value of 55.
The circle labeled "cable" has a value of 75.
The overlap between the two circles is labeled as 12.
Using this information, we can complete the table:
First column - "Satellite":
Entries: Satellite, Not satellite, Total
Total: 55 (as given in the Venn diagram)
Second column - "Cable":
Entries: Blank, 51%, Blank
To find the value for the "Cable" entry, we need to subtract the overlap (12) from the total number of cable users (75).
Cable: 75 - 12 = 63
Therefore, the entry becomes: Blank, 51%, Blank
Third column - "Not Cable":
Entries: a, b, Blank
To find the value for "a," we subtract the overlap (12) from the total number of satellite users (55).
a: 55 - 12 = 43
To find the value for "b," we subtract the overlap (12) from the total number of households (100).
b: 100 - 12 = 88
Therefore, the entries become: 43, 88, Blank
Fourth column - "Total":
Entries: Blank, Blank, 100%
The total number of households is given as 100% (as stated in the question).
Therefore, the values of a and b in the relative frequency table are:
a = 43% (rounded to the nearest percent)
b = 88% (rounded to the nearest percent)
Hence, the correct answer is:
a = 43%
b = 88%
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Find the missing fraction that would make each equation true. Explain how you got the answer.
*Please check if the ones I did are right
Answers
Answer:
1 1/6
Step-by-step explanation:
what is 3.825 as a fraction with a guide?
Answers
Answer:
3 33/40 or 153/40
Step-by-step explanation:
For first answer change the decimal .825 into fraction by making it over 1000. Then Simplify. For the second answer, take the first answer, multiply 3 with 40 and add 33. In the end both answers are equivanlent.
Draw the image of figure RSTU after a translation 2 units left and 2 units down and a reflection across the y-axis.
Answers
Answer:Just slide it to the left and 2 units down then plot the points Step-by-step explanation:
Answer:
Step-by-step explanation:
Slide it to the left and 2 units down
each function
f(x)=-4x-5;
ion for
Find ƒ(1)
for the given
Answers
When x is equal to 1, the Function f(x) = -4x - 5 yields a value of -9.
The find ƒ(1) for the function f(x) = -4x - 5, we need to substitute x = 1 into the function and evaluate the expression.
Replacing x with 1, we have:
ƒ(1) = -4(1) - 5
Simplifying further:
ƒ(1) = -4 - 5
ƒ(1) = -9
Therefore, when x is equal to 1, the value of the function f(x) = -4x - 5 is ƒ(1) = -9.
Let's break down the steps taken to arrive at the solution:
1. Start with the function f(x) = -4x - 5.
2. Replace x with 1 in the function.
3. Evaluate the expression by performing the necessary operations.
4. Simplify the expression to obtain the final result.
In this case, substituting x = 1 into the function f(x) = -4x - 5 gives us ƒ(1) = -9 as the output.
It is essential to note that the notation ƒ(1) represents the value of the function ƒ(x) when x is equal to 1. It signifies evaluating the function at a specific input value, which, in this case, is 1.
Thus, when x is equal to 1, the function f(x) = -4x - 5 yields a value of -9.
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What is an equation of the line that passes through the points (6, 4) and (4, 1)
Answers
Answer:
m = -5 / -2 = 2.5
Can I please get some help I’ve been stuck on this question for a while!
Answers
Using the radius of the Ferris wheel and the angle between the two positions, the time spent on the ride when they're 28 meters above the ground is 12 minutes
How many minutes of the ride are spent higher than 28 meters above the ground?The radius of the Ferris wheel is 30 / 2 = 15 meters.
The highest point on the Ferris wheel is 15 + 4 = 19 meters above the ground.
The time spent higher than 28 meters is the time spent between the 12 o'clock and 8 o'clock positions.
The angle between these two positions is 180 degrees.
The time spent at each position is 10 minutes / 360 degrees * 180 degrees = 6 minutes.
Therefore, the total time spent higher than 28 meters is 6 minutes * 2 = 12 minutes.
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the phone company charges $33 for having a smartphone plus $9.95 a month for 2gb. IF mark has only $146.43 to spend on a phone, how many months can he have the phone? inequalities
Answers
The number of months Mark can have the phone is given by the equation
A = 11.4 months
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the number of months be represented as = A
Now , the equation is
Now , the total amount with Mark = $ 146.43
The initial amount for the smartphone = $ 33
The amount per month for 2GB is = $ 9.95
So , the amount for A months = $ 9.95 ( A )
So , the equation will be
Initial amount for the smartphone + the amount for A months = total amount with Mark
Substituting the values in the equation , we get
33 + 9.95 ( A ) = 146.43 be equation (1)
On simplifying the equation , we get
Subtracting 33 on both sides of the equation , we get
9.95 ( A ) = 113.43
Divide by 9.95 on both sides of the equation , we get
A = 11.4 months
Therefore , the value of A is 11.4 months
Hence , the number of months is 11.4 months
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Calculate two iterations of Newton's Method to approximate a zero of the function using the given initial guess. (Round your answers to four decimal places.) f(x) = cos x, x1 = 0.7
Answers
Answer:
The two iterations of f(x) = 1.5598
Step-by-step explanation:
If we apply Newton's iterations method, we get a new guess of a zero of a function, f(x), xₙ₊₁, using a previous guess of, xₙ.
xₙ₊₁ = xₙ - f(xₙ) / f'(xₙ)
Given;
f(xₙ) = cos x, then f'(xₙ) = - sin x
cos x / - sin x = -cot x
substitute in "-cot x" into the equation
xₙ₊₁ = xₙ - (- cot x)
xₙ₊₁ = xₙ + cot x
x₁ = 0.7
first iteration
x₂ = 0.7 + cot (0.7)
x₂ = 0.7 + 1.18724
x₂ = 1.88724
second iteration
x₃ = 1.88724 + cot (1.88724)
x₃ = 1.88724 - 0.32744
x₃ = 1.5598
To four decimal places = 1.5598