Answer: $640
Step-by-step explanation:
4 x 10 (months)
= 40
$600 + $40
= $640
The graph of y=h(x)y=h(x)y, equals, h, left parenthesis, x, right parenthesis is a line segment joining the points (1,9)(1,9)left parenthesis, 1, comma, 9, right parenthesis and (3,2)(3,2)left parenthesis, 3, comma, 2, right parenthesis. Drag the endpoints of the segment below to graph y=h^{-1}(x)y=h −1 (x)y, equals, h, start superscript, minus, 1, end superscript, left parenthesis, x, right parenthesis.
Answer:
End points of the this segment are (9,1) and (2,3).
Step-by-step explanation:
The given function is
\(y=h(x)\)
End points of the this segment are (1,9) and (3,2).
If a function is defined as
\(f=\{(a,b),a\in R,b\in R\}\) then
\(f^{-1}=\{(b,a),a\in R,b\in R\}\)
It means, we have to interchange x and y-coordinates of the end points.
So, end points of the this segment are (9,1) and (2,3).
Plot these point and join them by a line segment.
The inverse of the function will be a line segment joining the points (9,1) and (2,3). See the graph.
Given information:
The function y=h(x) is a line segment joining the points (1,9) and (3,2).
So, the endpoints of the function y=h(x) can be written as,
\(y=h(x)=\{(1,9),(3,2)\}\)
The inverse of a function is simply the opposite relation. In the inverse, the range and domain interchange themselves.
So, the inverse of the given function can be written as,
\(y=h^{-1}(x)=\{(9,1),(2,3)\}\)
Refer to the graph of the function for more details.
For more details, refer to the link:
https://brainly.com/question/10300045
In a particular chi-square goodness-of-fit test, there are six categories and 325 observations. Use the 0.10 significance level.
How many degrees of freedom are there?
What is the critical value of chi-square? (Round your answer to 3 decimal places.)
In this particular chi-square goodness-of-fit test with six categories, 325 observations, and a 0.10 significance level, there are 5 degrees of freedom and the critical value of chi-square is 9.236.
To find chi-square goodness-of-fit test question.
To determine the degrees of freedom in this particular chi-square goodness-of-fit test with six categories and 325 observations, you need to subtract 1 from the number of categories. So, the degrees of freedom are:
Degrees of Freedom (df) = Number of Categories - 1
Degrees of Freedom (df) = 6 - 1
Degrees of Freedom (df) = 5
Next, to find the critical value of chi-square at a 0.10 significance level and 5 degrees of freedom, you can use a chi-square distribution table or an online calculator. After consulting the table or calculator, you will find that the critical value of chi-square is:
Critical Value of Chi-Square (rounded to 3 decimal places) = 9.236
So, in this particular chi-square goodness-of-fit test with six categories, 325 observations, and a 0.10 significance level, there are 5 degrees of freedom and the critical value of chi-square is 9.236.
To learn more about chi-square
https://brainly.com/question/4543358
#SPJ11
Can someone pls show how to do this is with explanation
Answer:
12
Step-by-step explanation:
The range is the difference between the highest and lowest values within a set of data.
According to the above question,
Highest value=2
Lowest value=-10
So,
2-(-10)=12
Find the length of the third side. If necessary, round to the nearest tenth.
25
16
Answer:29.68
Step-by-step explanation:
if the triangle is a right triangle, it should be this.
how many times larger is 1 meter than 1 centimeter
There are 100 centimeters in 1 meter. Therefore, 1 meter is 100 times larger than 1 centimeter.
One meter is 100 times larger than 1 centimeter. This is because the meter and centimeter are both units of length in the metric system, with the meter being the base unit. The prefix "centi-" in centimeter denotes a factor of 1/100. Thus, 1 centimeter is 1/100th of a meter. Therefore, to find how many times larger 1 meter is than 1 centimeter, we divide the meter by the centimeter: 1 meter / 1 centimeter = (1/100) meter/centimeter = 100. Hence, 1 meter is 100 times larger than 1 centimeter in terms of length.
To know more about centimeters:
https://brainly.com/question/11935744
#SPJ4
a room in a form of a cuboid has a length of 5cm, height 8cm and breadth 0.07m. if one person can occupy a volume of 14cm3(cube). what is the maximum number of people needed to fill the room
Answer:
20 people
Step-by-step explanation:
The volume of a cuboid is equal to length * breadth * height.
First, we want to figure out the values relative to each other. Everything is in centimeters except the breadth, which is 0.07m. To convert meters to centimeters, we can multiply by 100: 0.07 * 100 = 7, so the breadth is 7cm.
Next, the volume is length * breadth * height = 5cm * 7cm * 8cm = 280cm³. Each person occupies 14cm³. To find how many people can occupy the cube, we can divide the volume by the space each person takes, so
280cm³/14cm³ = 20 people
Note that we can divide because each person takes x amount of space, and the total space, z, can be represented by x * y = z, with y representing the amount of people, because we add x space for each person. Dividing both sides by x, we get y = z/x
Choose the best method to solve the system of linear equations. Then choose a reason to justify your answer choice. x−3y=6 x−3y=−3
Answer:
No solution.
Step-by-step explanation:
The given equations are :
x−3y=6 ...(1)
x−3y=−3 ...(2)
We need to solve the above equations.
The above two lines are parallel. Forparallel lines,
\(\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}\ne \dfrac{c_1}{c_2}\)
Here,
\(\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}\)
It means, the above equations have no solution.
Leah Deposited $7000 in an account that earns 2% interest compounded annually. How much interest will she have earned after 6 years?
Answer:
840
Step-by-step explanation:
7000×2×6 ÷ 100. since it is 2%
= 840
can someone help solve this math problem with steps and detail pls :) I really confused
Division first:
-2/5 / 8/15
When dividing two fractions flip
The second one over and multiply:
-2/5 x 15/8 = (-2x15)/(5x8) = -30/40 = -3/4
Now you have:
2-3/4-3/4
2-3/4 = 1 1/4
1 1/4 - 3/4 = 1/2
The answer is 1/2
Is anyone able to solve this?
The value of ? and X are 24 and 32 respectively
Similarity theorem of a triangleA triangles is 2D shape with three sides and angles.
From the given diagram, the ratio of similar sides is equal to a constant as shown;
15/20 = 9+15/20+x
Cross multiply
15/9+15 = 20/20+x
15/24 = 20/20+x
Comparing with the given ratio
? = 24
X = 20+x
Find x
15(20+x) = 480
300 + 15x = 480
15x = 180
x =12
X = 20 +x
X= 32
Hence the value of ? and X are 24 and 32 respectively
Learn more on similar triangles here: https://brainly.com/question/11920446
#SPJ1
find the absolute maximum and minimum values of f on the set d. f(x, y) = x2 4y2 − 2x − 8y 1, d = (x, y) | 0 ≤ x ≤ 2, 0 ≤ y ≤ 3
The absolute maximum value of f on d is 4, and it occurs when x = 2, y = 0. The absolute minimum value of f on d is -37, and it occurs when x = 1, y = 3.
To find the absolute maximum and minimum values of f on the set d, use the following steps:Step 1: Calculate the partial derivatives of f with respect to x and y. f(x, y) = x2 4y2 − 2x − 8y 1∂f/∂x = 2x - 2∂f/∂y = -8y - 8Step 2: Set the partial derivatives to zero and solve for x and y.∂f/∂x = 0 ⇒ 2x - 2 = 0 ⇒ x = 1∂f/∂y = 0 ⇒ -8y - 8 = 0 ⇒ y = -1Step 3: Check the critical point(s) in the given domain d. 0 ≤ x ≤ 2, 0 ≤ y ≤ 3Since y cannot be negative, (-1) is not in the domain d. Therefore, there is no critical point in d.Step 4: Check the boundary of the domain d. When x = 0, f(x, y) = -8y - 1When x = 2, f(x, y) = 4 - 8y - 2When y = 0, f(x, y) = x2 - 2x - 1When y = 3, f(x, y) = x2 - 2x - 37Therefore, the absolute maximum value of f on d is 4, and it occurs when x = 2, y = 0.The absolute minimum value of f on d is -37, and it occurs when x = 1, y = 3.
To know more about domain visit:
https://brainly.com/question/26098895
#SPJ11
function: $f(x,y) = \(x^2 - 4y^2 - 2x - 8y +1$\) , The given domain is \(x^2 - 4y^2 - 2x - 8y +1$\)
Now we have to find the absolute maximum and minimum values of the function on the given domain d.To find absolute maximum and minimum values of the function on the given domain d, we will follow these steps:
Step 1: First, we have to find the critical points of the given function f(x,y) within the given domain d.
Step 2: Next, we have to evaluate the function f(x,y) at each of these critical points, and at the endpoints of the boundary of the domain d.
Step 3: Finally, we have to compare all of these values to determine the absolute maximum and minimum values of f(x,y) on the domain d.
Now, let's find critical points of the given function f(x,y) within the given domain d.To find the critical points of the function \($f(x,y) =\(x^2 - 4y^2 - 2x - 8y + 1$\)\), we will find its partial derivatives with respect to x and y, and set them equal to zero, i.e.\(\($f(x,y) = x^2 - 4y^2 - 2x - 8y + 1$\)\)
Solving these equations, we get:\($x = 1$\) and \($y = -1$\)So, the critical point is \($(1,-1)$.\)
Now, we need to find the function value at the critical point and the endpoints of the boundary of the domain d. We will use these five points:\($(0,0),(0,3),(2,0),(2,3),(1,-1)$\).
Now, let's evaluate the function f(x,y) at each of these five points:\(\($f(x,y) = x^2 - 4y^2 - 2x - 8y + 1$\)\)
Therefore, the absolute maximum value of f(x,y) is 1, and the absolute minimum value of f(x,y) is -67 on the domain d.
To know more about domain , visit
https://brainly.com/question/28135761
#SPJ11
it's about proportion and stuff but I'm confused on this one can someone please explain?
Answer:
the one clue you have is "30,12" on the left. try to understand how they relate to each other. maybe how many times 12 goes into 30. or maybe how many times it goes into 32 with no decimal so what number do you have to add (sometimes work doesnt mean it like that so that might be wrong). but if you want the answers, they are:
35/5/15/30
14/2/6/12
the way i did it was if it was on the bottom (y) i did 2.5 times the number. if on the top (x) i did the number divided by 2.5. 2.5 was the rate of change (is that the word i think it is but if it isnt just blame me im sorry).
Step-by-step explanation:
Determine whether each of these statements is true or false.a) 0 ∈ ∅ b) ∅∈{0}c) {0}⊂∅ d) ∅⊂{0}e) {0}∈{0} f ) {0}⊂{0}g) {∅} ⊆ {∅}
a) True, b) False, c) False, d) True, e) False, f) False, g) True
a) The statement is true. The symbol "∅" represents the empty set, which does not contain any elements. Since 0 is not an element of the empty set, the statement "0 ∈ ∅" is false.
b) The statement is false. The symbol "{0}" represents a set containing the element 0. The empty set, represented by "∅", does not contain any elements. Therefore, the empty set is not an element of the set {0}.
c) The statement is false. The symbol "{0}" represents a set containing the element 0. However, the empty set, represented by "∅", does not contain any elements. Therefore, the set {0} is not a subset of the empty set.
d) The statement is true. The empty set, represented by "∅", does not contain any elements. Every set is a subset of the empty set, including the set {0}.
e) The statement is false. The symbol "{0}" represents a set containing the element 0. In this case, {0} is not an element of itself. Therefore, the statement "{0}∈{0}" is false.
f) The statement is false. The symbol "{0}" represents a set containing the element 0. In this case, {0} is not a proper subset of itself. Therefore, the statement "{0}⊂{0}" is false.
g) The statement is true. The symbol "{∅}" represents a set containing the empty set. In this case, {∅} is a subset of itself because it contains the element ∅. Therefore, the statement "{∅} ⊆ {∅}" is true.
Learn more about empty set here: https://brainly.com/question/13553546
#SPJ11
Pls help will mark Brainly est pls help
Step-by-step explanation:
We can find the other point using the axis of symmetry.
The axis of symmetry for a parabola passes through the x coordinate of the vertex.
So our axis of symmetry is x=4, which is a vertical line.
For any point on a parabola curve except the vertex, there will two points that share the same y value. The two x coordinates of those points midpoints should be the axis of symmetry.
So,
If we know (0,-6) and the vertex is 4, let's find the other point
\(( \frac{0 + b}{2} = 4\)
\(b = 8\)
So our other point is
(8,-6).
So the answer to #1 is we found point (8,-6) by using the axis of symmetry. By reflecting the point (0,-6) about the vertical line x=4, we end up getting the point (8,-6)
To find q, q(x) has the same vertex, so it is (4,10).
We know the axis of symmetry is x=4, we also know the y intercept is 18 so we have point (0,18)
Using the axis of symmetry we will get (8,18).
So the graphs above are the graphs of p and q
The graph facing upwards is q
The graph facing downwards is p.
For #2, you can say we know the vertex is (4,10) and using the y intercept and axis of symmetry we found the other point on the curve.
I don't fully see the table but if the other coordinates have a higher y value, the vertex is a minimum.
Else, of the other coordinates have a lower y value, the vertex is a maximum.
A car travels 2.625 miles in 3.5 minutes at a constant speed. how far did the car travel in 5 minutes?
The car travels 3.75 miles in 5 minutes
GIVEN-
2.626 Miles in 3.5 mins
TO FIND-
Distance in 5mins
STEPS-
In 3.5 minutes it travels 2.625 miles
To find out how much it travels in only one minute, we divide 2.625 miles by 3.5 minutes
2.625/3.5 = 0.75 miles/minute
∵In m mins it traveled 0.75×m miles
since,distance d = 0.75 x m
∴In 5 mins it traveled 0.75x5 miles
=3.75miles
The car traveled 3.75 miles in 5 minutes
To learn more about speed:
https://brainly.com/question/13943409
let a and b be integers. prove that if ab = 4, then (a – b)3 – 9(a – b) = 0.
Let \(\(a\)\) and \(\(b\)\) be integers such that \(\(ab = 4\)\). We want to prove that \(\((a - b)^3 - 9(a - b) = 0\).\)
Starting with the left side of the equation, we have:
\(\((a - b)^3 - 9(a - b)\)\)
Using the identity \(\((x - y)^3 = x^3 - 3x^2y + 3xy^2 - y^3\)\), we can expand the cube of the binomial \((a - b)\):
\(\(a^3 - 3a^2b + 3ab^2 - b^3 - 9(a - b)\)\)
Rearranging the terms, we have:
\(\(a^3 - b^3 - 3a^2b + 3ab^2 - 9a + 9b\)\)
Since \(\(ab = 4\)\), we can substitute \(\(4\)\) for \(\(ab\)\) in the equation:
\(\(a^3 - b^3 - 3a^2(4) + 3a(4^2) - 9a + 9b\)\)
Simplifying further, we get:
\(\(a^3 - b^3 - 12a^2 + 48a - 9a + 9b\)\)
Now, notice that \(\(a^3 - b^3\)\) can be factored as \(\((a - b)(a^2 + ab + b^2)\):\)
\(\((a - b)(a^2 + ab + b^2) - 12a^2 + 48a - 9a + 9b\)\)
Since \(\(ab = 4\)\), we can substitute \(\(4\)\) for \(\(ab\)\) in the equation:
\(\((a - b)(a^2 + 4 + b^2) - 12a^2 + 48a - 9a + 9b\)\)
Simplifying further, we get:
\(\((a - b)(a^2 + 4 + b^2) - 12a^2 + 39a + 9b\)\)
Now, we can observe that \(\(a^2 + 4 + b^2\)\) is always greater than or equal to \(\(0\)\) since it involves the sum of squares, which is non-negative.
Therefore, \(\((a - b)(a^2 + 4 + b^2) - 12a^2 + 39a + 9b\)\) will be equal to \(\(0\)\) if and only if \(\(a - b = 0\)\) since the expression \(\((a - b)(a^2 + 4 + b^2)\)\) will be equal to \(\(0\)\) only when \(\(a - b = 0\).\)
Hence, we have proved that if \(\(ab = 4\)\), then \(\((a - b)^3 - 9(a - b) = 0\).\)
To know more about satisfies visit-
brainly.com/question/16993710
#SPJ11
Public health and safety officials have classified the Zika virus as a hazardous threat to pregnant women in Brazil. A study based in Rio found the virus to be more active near a body of water that was found to be polluted. A study of 20 water samples around areas that were heavily affected by the Zika virus found an average chemical waste of 126 g per mile with a standard deviation of 11.78 g. (a) What are the degrees of freedom for this study?(b) construct a 95onfidence interval (in g per mile) for the mean chemical waste of bodies of water for all areas where the zika virus was overly active. (round your answers to three decimal places.)____ ____ per mile
We need to determine the degrees of freedom and construct a 95% confidence interval for the mean chemical waste.
(a) Degrees of freedom: In this study, we have a sample size of 20 water samples (n = 20).
Degrees of freedom (df) for a sample is calculated as df = n - 1. In this case, df = 20 - 1 = 19.
(b) Construct a 95% confidence interval for the mean chemical waste:
First, we need to find the standard error (SE) of the mean, which is calculated as SE = standard deviation (SD) / sqrt(n).
In this case, SD = 11.78 g and n = 20, so SE = 11.78 / sqrt(20) = 2.634.
Next, we need to find the critical value (t*) for a 95% confidence interval with 19 degrees of freedom.
You can find this value using a t-table or calculator. For this case, t* ≈ 2.093. Now, we can calculate the margin of error (ME) using the formula ME = t* * SE.
In this case, ME = 2.093 * 2.634 = 5.513.
Finally, we can calculate the lower and upper bounds of the 95% confidence interval as follows:
Lower bound = mean - ME = 126 - 5.513 = 120.487 g/mile
Upper bound = mean + ME = 126 + 5.513 = 131.513 g/mile
So, the 95% confidence interval for the mean chemical waste in g per mile is (120.487, 131.513) per mile.
Learn more about degrees of freedom,
https://brainly.in/question/38102563
#SPJ11
I set z=t=0(x,y,z,t)
and I got a partial solution (0,1,0,0).
I solved two homogeneous matrices once for z=1
and t=0
, then for z=0
and t=1
and I got two solutions (1,1,1,0)
and (1,1,0,1).
Then, I got (0,1,0,0)+a∗(1,1,1,0)+b∗(1,1,0,1
)
Therefore, all possible results are (0,1,0,0),(1,0,1,0),(1,0,0,1),(0,1,1,1)
Would this be correct?
The correct set of possible results would be (0, 1, 0, 0), (1, 2, 1, 0) and (1, 2, 0, 1).
Your approach seems to be correct, but there seems to be a minor mistake in your final list of possible solutions. Let's go through the steps to clarify.
Given the initial conditions z=t=0, you obtained a partial solution (0,1,0,0).
Next, you solved the homogeneous equations for z=1 and t=0, which resulted in a solution (1,1,1,0).
Similarly, solving the homogeneous equations for z=0 and t=1 gives another solution (1,1,0,1).
To find the general solution, you combine the partial solution with the solutions obtained in the previous step, using parameters a and b.
(0,1,0,0) + a(1,1,1,0) + b(1,1,0,1)
Expanding this expression, you get:
(0+a+b, 1+a+b, 0+a, 0+b)
Simplifying, you obtain the following set of solutions:
(0, 1, 0, 0)
(1, 2, 1, 0)
(1, 2, 0, 1)
Therefore, the correct set of possible results would be:
(0, 1, 0, 0)
(1, 2, 1, 0)
(1, 2, 0, 1)
Note that (0, 1, 1, 1) is not a valid solution in this case, as it does not satisfy the initial condition z = 0.
To learn more about set ,
https://brainly.com/question/30368748
#SPJ4
will had 23 balls Sarah had 7 times a many as will had, Logan had 2 times as many Sarah had how many balls does everyone have
Answer:
Will clearly has 23 snow balls
Sarah has 161 snow balls
Logan has 322 snow balls
All in all thats a lotta dam snow balls hehe :)
Step-by-step explanation:
hope this helps yall :)
Solve for x. -6 = x – 35
Answer:
The answer is x=29
Step-by-step explanation:
-6 = x – 35
=-6+35=x-35+35
x=29
Answer:
41
Step-by-step explanation:
35- -6= 41
41-35=6
35-41=6
Which shows an equivalent decimal, fraction and percent
A-0. 125,1/8,12. 5%
B-0. 20,1/10,20%
C-0. 45,4/5,45%
D-0. 60,2/3,66%
An equivalent decimal, fraction and percent is C) 0.45, 4/5, 45%.
To understand why this is the correct choice, we need to look at how decimals, fractions, and percentages are related. Decimals are just another way of representing fractions, where the denominator is a power of 10. For example, 0.45 is the same as 45/100 or 9/20.
Percentages, on the other hand, are just a way of representing fractions with a denominator of 100. So, 45% is the same as 45/100 or 9/20.
The other options do not have equivalent representations of decimals, fractions, and percentages.
In conclusion, understanding the relationships between decimals, fractions, and percentages is essential to solving problems like these. The key is to remember that they are just different ways of representing the same value, and with a bit of practice, it becomes second nature to recognize equivalent representations.
Therefore, option C shows an equivalent decimal (0.45), fraction (4/5), and percent (45%).
To learn more about decimal here:
https://brainly.com/question/1736596
#SPJ4
4y - 7 + 2y = -3 (y - 1 ) -1
Step-by-step explanation:
4y - 7 +2y = -3y + 3 - 1
4y -7 +2y' = -3y + 2
4y+2y+3y = 2+7
9 y = 9
y. = 1
A crew has paved 3/4 of a mile of road. If they have completed 50% of the work, how long is the road they are paving?
Answer:
1.5
Step-by-step explanation:
Let the value be x,
(3/4) = 50% * x
x = 1.5
Thenks and mark me brainliest :))
If the predicted odds of buying are 3:1 then which of the following is true? P-.75 and 1-P-25 OP - 25 and 1-D-75 None of the Above
A). (P-.75 and 1-P-25) is the correct option. If the predicted odds of buying are 3:1
This is a bit of a tricky question, but I will do my best to give you a long answer that explains the different components at play here. First, let's start with the term "predicted odds of buying." This term refers to the likelihood that someone will make a purchase based on some kind of analysis or prediction. In this case, the odds are given as 3:1, which means that for every 3 people who are predicted to buy, 1 person is predicted not to buy.
Option A (P-.75 and 1-P-25) refers to the probabilities of buying (P) and not buying (1-P), and suggests that the probability of buying is 0.75 (or 75%) and the probability of not buying is 0.25 (or 25%). Option B (OP-25 and 1-D-75) is similar, but uses the term "OP" instead of "P." It also suggests that the probability of not buying is 0.75 (or 75%) and the probability of buying is 0.25 (or 25%).
Finally, option C (None of the Above) suggests that neither of the previous options are correct.
The answer is actually option A (P-.75 and 1-P-25). This is because the odds of buying (3:1) can be converted into probabilities by dividing the number of predicted buyers by the total number of predicted buyers and non-buyers. In this case, there are 3 predicted buyers for every 1 predicted non-buyer, so the probability of buying is 3/4 (or 0.75) and the probability of not buying is 1/4 (or 0.25).
To know more about predicted odds:
https://brainly.com/question/31911056
#SPJ11
The given equation has been solved in the table.
Step Statement
1
2
3
4
5
In which step was the subtraction property of equality applied?
A.
step 2
B.
step 3
C.
step 4
D.
The subtraction property of equality was not applied to solve this equation.
From the steps shown in the table given, we can conclude that: D. in solving the equation, the subtraction property of equality was not applied.
What is the Subtraction Property of Equality?If a + b = c, to apply the subtraction property of equality so that b is moved to the other side of the equation, we would have:
a + b - b = c - b
a = c - b
Thus, from the table given, the none of the steps showed that the subtraction property of equality was applied in solving the equation, so, the answer is: D.
Learn more about the subtraction property of equality on:
https://brainly.com/question/1601404
#SPJ1
suppose you have two bags of marbles that are in a box. bag 1 contains 7 white marbles, 6 black marbles, and 3 gold marbles. bag 2 contains 4 white marbles, 5 black marbles, and 15 gold marbles. the probability of grabbing the bag 1 from the box is twice the probability of grabbing the bag 2. if you close your eyes, grab a bag from the box, and then grab a marble from that bag, what is the probability that it is gold?
The probability that it is gold is (1/3).
What is probability?The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty. The likelihood that an event will occur increases with its probability. If two events are mutually exclusive, then there is a 0 percent chance that they will both happen at the exact moment. Two events are said to be mutually exclusive if they share no elements (their intersection is the empty set). Consequently, P(A∩B)=0.
Let A be the event that a gold marble is picked.
Let B₁ and B₂ be the event that the first bag is chosen and the second bag is chosen respectively.
Given: P (B₁ ) = 2.P(B₂)
Also, P(B₁) + P(B₂) = 1
∴ 2P(B₂) + P(B₂) =1
3P(B₂) = 1
P(B₂) = 1/3 and P(B₁) = 2/3
Now
P(A)
= P(A∩(B₁∪B₂))
= P[(A∩B₁)∪(A∩B₂)]
Probability adds up because the events are mutually exclusive
= P(A∩B₁) + P(A∩B₂)
= P(B₁). P(A/B₁) + P(B₂). P(A/B₂)
= (2/3)×(3/16) + (1/3)×(15/24)
= (1/3)
To learn more about probability, visit:
https://brainly.com/question/1969972
#SPJ4
sally purchases some apples and oranges for $5.25. oranges cost 51 cents each and apples costs 42 cents each. sally purchased 11 pieces of fruit in total. how many oranges did sally purchase? g
Sally purchased 7 pieces of orange .
Conversion applied :
1 dollar = 100 cents
Cost of 1 piece of orange = 51 cents
Cost of 1 piece of apple = 42 cents
Let pieces of orange purchased be x .
⇒ pieces of apples purchased = 11 - x .
The following linear equation becomes ,
51 x + 42 ( 11 - x ) = 5.25 * 100
Solving linear equation in 1 variable given above ,
9 x = 63
x = 7
⇒ no. of oranges purchased = 7
Therefore Sally purchased 7 pieces of orange .
To learn more on linear equations follow link :
https://brainly.com/question/24085666
#SPJ4
What is the quotient?
-3/8÷-1/4
O-1 1/2
O-3/32
O3/32
O1 1/2
it is 1 1/2
the answer is 1 1/2
Answer:( D ) 1 1/2
Step-by-step explanation:
Carrie is going to paint the ceiling after her rectangular family room which is 28 ft long at 18 ft wide each quarter paint cost 12:50 and can cover 85 square feet are Wally's one coat of paint how much money will Caris been on pay
Rectangular area A = 28 ft x 18 ft
. A = 504 ft2
Quarter paint area Q = 85 ft2
Then divide A/Q = 5.92 = 5 + 0.92
In consecuence are needed 5 quarters of paint, that costs
5x 12.50 = 62.5
Add a fraction of 0.92 ,that costs. 0.92 x12.50 = 11.5
Then Carrie have to pay
62.5 + 11.5 = 74
Answer is $ 74 dollars
Evaluate the expression when x = 9.
x + 5(x + 2)
Answer:
64
Step-by-step explanation:
x + 5(x + 2)
Distribute
x + 5x+10
Combine like terms
6x+10
Let x = 9
6(9) +10
54+10
64
Answer:-10/13
Step-by-step explanation: