Use 4 twos, parentheses, and 3 operations to get
an answer of 0.
Answers
Answer: 2 - 2 + (2 + 2) × 0 = 0
Step-by-step explanation: there you go hope this helps also can I get brainliest
Related Questions
Divide 6 divided by 3/5
Answer only if u know please:)
Answers
Answer:
The answer is 10 or 10/1
Find the volume of each rectangular prism from the given parameters.
length = 19 in ; width = 17 in ; height = 13 in
best answer gets 55 points
Answers
19 x 17 x 13 = 4183 in³
The volume of the rectangular prism is 4183 cubic inches.
Find the circumference of f
Answers
Answer:
its kinda hard to explain udisng words but mutiple to get acxorss then plit it and SFF and you should get the asnwer
Step-by-step explanation:
which linear inequality is represented by the graph?
Answers
y < or = 1/2x + 3
Explanation
We know when x = 0, y has to be 3 (y intercept).
Therefore y>= or <= 2x + 4 is wrong since substituting x = 0 gives y=4.
Since you need the shaded part of the graph that’s under the line you need all the y values that are smaller than and equal to the inequality.
If it was greater than or smaller to the area above the line would be shaded.
Consider a small shop with only one checkout counter. The arrivals of customers are distributed throughout the day such that a line rarely forms at the counter. Suppose the arrival times of customers at the counter follows the Exponential Distribution: X Exp(0.4). 0.4 0.3 0.2 0.1 0.0 0.0 2.5 5.0 7.5 10.0 12.5 15.0 х a. What is the mean time (in minutes) between customers? u = b. Determine the following probability. P(2 < X < 10) Suppose X ~ Exp(0.25). Determine the following probabilities. (Include four decimal places.) Note: This is a challenging problem. a. P(X > 5) = b. P(X < 3) = C. P(X > 7X > 5) = Suppose X ~ U(2, 7). Determine P(X > 6 | X > 5). Note: This is a very challenging problem.
Answers
For the exponential distribution in question, Mean time (in minutes) between customers, is 2.5 minutes and P(2 < X < 10) for X ~ Exp(0.25)
The arrival times of customers at the counter are given as follows the Exponential Distribution: X Exp(0.4), we have the following questions to solve: We know that P(a < X < b) = F(b) - F(a) for X ~ Exp(λ)and the cumulative distribution function (CDF) of Exponential distribution is given as:
The mean time u =1/λ = 1/0.4 = 2.5
F(x) = 1 - e^(-λx). Therefore, P(2 < X < 10) = F(10) - F(2) = [1 - e^(-0.25*10)] - [1 - e^(-0.25*2)] = e^(-0.25*2) - e^(-0.25*10) ≈ 0.018a) P(X > 5) for X ~ Exp(0.25)P(X > 5) = 1 - P(X < 5) = 1 - F(5) = 1 - [1 - e^(-0.25*5)] = e^(-0.25*5) ≈ 0.082b) P(X < 3) for X ~ Exp(0.25)P(X < 3) = F(3) = 1 - e^(-0.25*3) ≈ 0.427c) P(X > 7 | X > 5) for X ~ Exp(0.25)
We know that P(A | B) = P(A and B)/P(B)
Therefore, P(X > 7 | X > 5) = P(X > 7 and X > 5)/P(X > 5) = P(X > 7)/P(X > 5) = (1 - F(7))/(1 - F(5)) = (1 - e^(-0.25*7))/(1 - e^(-0.25*5)) ≈ 0.4
Suppose X ~ U(2, 7). We have to determine P(X > 6 | X > 5). Given X ~ U(2, 7), we know that P(X > 6 | X > 5) = P(X > 6 and X > 5)/P(X > 5) = P(X > 6)/(1 - P(X ≤ 5))
Let's calculate P(X > 6)P(X > 6) = 1 - P(X ≤ 6) = 1 - (6 - 2)/(7 - 2) = 3/5P(X ≤ 5) = (5 - 2)/(7 - 2) = 3/5
Therefore, P(X > 6 | X > 5) = (3/5)/(1 - 3/5) = 3
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if you could explain how to do at least one thatd help alot
Answers
Step-by-step explanation:
If you know how to do an equation like: 5x - 3 = 21
Or something formatted like that, its the exact same thing, only there's a different sign. So I believe the first one would be:
x + 3 < 5
- 3 -3
x = 2
But I just learnt how to do this so let me know if it works :)
Also! If the number after the sign's (such as < or >) sign changes (such as -3 becomes 3 or 3 becomes -3. or even when -3 becomes 1) then you swap the sign ( < becomes > and visa versa) But this only works if it changes due to a multiplication or division. Example:
-3x > 3
(divide by -3)
x < -1
I swapped the sign. Make sense?? Let me know if it doesnt and I'll clarify
2 is (-∞, -2)
3 is [1,4]
4 is (3,7)
All I could answer for now, hope it helps! :D good luck!
A booth at the circus is taking donations for the children's hospital. They noticed on Saturday that more than 248 people donated money. Women averaged a donation of $10, and men averaged a donation of $15.
Which system of inequalities could be used to determine the number of women (w) and men (m) who donated, if no more than $3,130 was donated?
A.
B.
C.
D.
Reset Submit
Answers
The system of inequalities that could be used to determine the number of women (w) and men (m) who donated, if no more than $3,130 was donated is:
10w + 15m > 248
w + m < 213
10w + 15m < 3130
This system of inequalities can be used to model the scenario you've described, where the booth at the circus took donations for the children's hospital, and more than 248 people donated money. The first inequality states that the total number of donations from women (w) multiplied by $10 and the total number of donations from men (m) multiplied by $15 should be greater than 248. The second inequality states that the total number of women (w) and men (m) should be less than 213. The third inequality states that the total amount donated by women (w) multiplied by $10 and total amount donated by men (m) multiplied by $15 should be less than $3,130.
Therefore, the correct answer is option A. ✅
25. Explain the Error Jeremy factored 144x? – 100 as follows:
144x2 100 = (12x + 10)(12x – 10)
= 2(6x + 5)(6x – 5)
What was his error? Correct his work.
Answers
Given:
Consider the expression is
\(144x^2-100\)
Jeremy factored the given expression and his steps are given.
To find:
The error in his solution.
Solution:
We have,
\(144x^2-100\)
It can be written as
\(=12^2x^2-10^2\)
\(=(12x)^2-10^2\)
\(=(12x+10)(12x-10)\) \([\because a^2-b^2=(a+b)(a-b)]\)
Taking out common factors from each parenthesis.
\(=2(6x+5)2(6x-5)\)
\(=4(6x+5)(6x-5)\)
So, Jeremy was incorrect because the common factor is \(2\times 2=4\) instead of 2.
Therefore, Jeremy made his mistake in his last step.
Use the number line to plot the numbers. then arrange them in order from smallest (1) to largest (4). startroot 0.2 endroot startroot 0.4 endroot 0.2 0.4
Answers
The number line is shown below. The numbers 0.2, 0.4, √0.2, and √0.4 are in ascending order.
What is a number line?
A number line is a line on which numbers are plotted in a particular interval.
The numbers are given below.
\(\sqrt{0.2}, \sqrt{0.4}, 0.2, 0.4\)
Arrange in ascending order, then we have
\(0.2, 0.4, \sqrt{0.2}, \sqrt{0.4}\)
Then mark these numbers on the number line.
The number line is shown below.
More about the number line link is given below.
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Answer:
√0.2 ✔3
√0.4 ✔4
0.2 ✔1
0.4 ✔2
Step-by-step explanation:
My image shows that I got it correct on edge! Hope this helps:D
after a translation 5 units left and 6 units down.
Answers
We will investigate the translation transformation applied on a figure defined on a cartesian coordinate grid.
Translation transformation deals with the displacement of the primary vertices of a figure like a square JKLM with certain number off units in horizontal and/or vertical direction.
We will investigate the type of translations that are possible as follows:
\((\text{ x , y ) }\to\text{ ( x + a , y + b )}\)Where,
\(\begin{gathered} a\colon\text{ Number of horizontal units shifts} \\ b\text{ : Number of vertical units shifts} \end{gathered}\)AND,
\(\begin{gathered} a\text{ > 0 }\ldots\text{ Right shift} \\ a\text{ < 0 }\ldots\text{ Left shift} \\ a\text{ = 0 }\ldots\text{ No horizontal shift} \\ \\ b\text{ > 0 }\ldots\text{ Up shift} \\ b\text{ < 0 }\ldots\text{ Down shift} \\ b\text{ = 0 }\ldots\text{ No Vertical shift} \end{gathered}\)We will investigate how to use the above rule to determine the image of the square JKLM.
We will translate each vertex 5 units left and 6 units down! We will assign the constants a value according to the translation units:
\(\begin{gathered} a\text{ = -5} \\ b\text{ = -6} \end{gathered}\)The general rule that will be applied to the vertices of the square JKLM:
\((\text{ x , y ) }\to\text{ ( x - 5 , y - 6 )}\)The four coordinate of the square are:
\(J\text{ ( 1 , -3 ) , K ( 9 , -3 ) , L ( 9 , 5 ) , M ( 1 , 5 )}\)Applying the general rule to determine the image of all vertices:
\(\begin{gathered} J\text{ ( 1 , -3 ) }\to\text{ J' ( 1 -5 , -3 - 6 ) }\to\text{ J' ( -4 , -9 )} \\ K\text{ ( 9 , -3 ) }\to\text{ K' ( 9 -5 , -3 - 6 ) }\to\text{ K' ( 4 , -9 )} \\ L\text{ ( 9 , 5 ) }\to\text{ L' ( 9 -5 , 5 - 6 ) }\to\text{ L' ( 4 , -1 )} \\ M\text{ ( 1 , 5 ) }\to\text{ M' ( 1 - 5 , 5 - 6 ) }\to\text{ M' ( -4 , -1 ) } \end{gathered}\)The image of the square JKLM is as follows:
\(J^{\prime}\text{ ( -4 , -9 ) , K' ( 4 , -9 ) , L' ( 4 , -1 ) , M' ( -4 , -1 )}\)We can plot these images on the grid as follows:
HELP ME FOR BRAINLESS Mr. Erikson plans to tile the floor of the hallway in a school, as shown in the
diagram below. Intersecting sides of the diagram meet at right angles.
O
150
14 ft
5 ft
O
154
O
162
15 ft
O
174
CLEAR ALL
Bft
The tiles are squares measuring one foot on each side. What is the
minimum number of tiles that Mr. Erikson needs in order to tile the floor?
Answers
The minimum tiles Mr. Erikson needs to buy is 150.
In a large city school system with 20 elementary schools, the school board is
considering the adoption of a new policy that would require elementary students to pass
a test in order to be promoted to the next grade. The PTA wants to find out whether
parents agree with this plan.
Listed below are some ideas proposed for gathering data. For each, indicate what kind
of sampling strategy is involved and what (if any) biases might result.
a. Put a big ad in the newspaper asking people to log their opinions on the PTA website.
b. Randomly select one of the elementary schools and contact a parent for each student
in the school.
c. Send a survey home with every student, and ask parents to fill it out and return it the
next day.
d. Randomly select 20 parents from each elementary school. Send them a survey, and
follow up with a phone call if they do not return the survey within a week.
e. Run a poll on the local TV news, asking people to dial one of two phone numbers to
indicate whether they favor or oppose the plan.
f. Hold a PTA meeting at each of the 20 elementary schools, and tally the opinions
expressed by those who attend the meetings.
g. Randomly select one class at each elementary school and contact each of those
parents.
h. Go through the district’s enrollment records, selecting every 40th parent. PTA
volunteers will go to those homes to interview the people chosen.
Answers
a. This is a voluntary response sampling strategy. Bias may occur because only those with strong opinions are likely to respond, which may not represent the views of all parents.
b. This is cluster sampling. Bias may occur if the selected school is not representative of the entire city's school system.
c. This is a census. Bias may occur if some parents do not return the survey, leading to nonresponse bias.
d. This is stratified random sampling. Bias may be minimized as each school is fairly represented, but nonresponse bias could still occur if some parents do not return the survey or respond to the phone call.
e. This is a voluntary response sampling strategy. Bias may occur as only those watching the news and with strong opinions are likely to participate, which may not represent the views of all parents.
f. This is convenience sampling. Bias may occur because only those attending the PTA meetings will have their opinions counted, which may not represent the views of all parents.
g. This is cluster sampling. Bias may occur if the selected classes are not representative of the entire city's school system.
h. This is systematic random sampling. Bias may be minimized as the sample is spread evenly throughout the enrollment records, but nonresponse bias could still occur if some parents are not available for the interview.
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HURRY PLEASE!! I’ll mark you as brainliest
Which graph shape would represent the connected
points in Celeste's function table?
A. A straight line that slopes up from left to right
B. A straight line that slips down from left to right
C. A symmetrical V shape that opens down
D. A symmetrical face shape that opens up
Answers
Answer:
I believe the answer would be A
Step-by-step explanation:
There is no possible slope being involved so B, C, or D couldn't be the answer.
Answer:
A. A straight line that slopes from left to right.
Step-by-step explanation:
y = mx + b
What are the maximum and minimum of the function f(x) = 0.9 I -(x - 5) I + 7 ? A. Maximum at (5,7) and minimum at (0,0) B. Minimum at (5,7) and no maximum C. Minimum at (0,0) and no maximum D. Maximum at (5,7) and no minimum
Answers
Answer:
\(Minimum = (5,7)\)
No maximum
Step-by-step explanation:
Given
\(f(x) = 0.9|-(x - 5)| + 7\)
Solving (a): The minimum
The minimum is when the absolute parameter gives 0
i.e.
\(0.9|-(x - 5)| =0\)
Divide both sides by 0.9
\(|-(x - 5)| =0\)
Open bracket
\(|-x + 5| =0\)
Remove absolute sign
\(-x + 5 =0\)
Collect like terms
\(x = 5\)
Then the y value is:
\(f(x) = 0.9|-(x - 5)| + 7\)
Recall that: \(0.9|-(x - 5)| =0\)
So, we have:
\(f(x) = 0 + 7\)
\(f(x) = 7\)
Hence, the minimum is at: \((5,7)\)
Since the minimum is at \((5,7)\), then the graph will open upwards.
Hence. the function has no maximum; i.e.
\(Maximum = (\infty,\infty)\)
Piere is an electrician
He uses this formula to work out the amount ,$c , to charge for a job that takes ×hours
C=20+30×
He starts a job at 9 30 and finishes at 1 pm
Work out his charge for this job
Pls show me formula
Answers
Answer:
c=$125
Step-by-step explanation:
9:30--12:30 is three hours, then another half hour till 1pm total hours is 3.5
c = 20+30*3.5
c=20 + 105
c = 125
The charge for Piere's work is $125 by using the formula C = 20+30x.
What is a linear equation?A Linear Equation is an equation of a line. An equation in which the highest power of the variable is always 1. An equation which is expressed in the form of ax+b = 0, where a and b are two integers, and x is a variable and has only one solution.
For the given situation,
Let the amount in dollar,$ be C.
Let the hours be x.
The equation is C = 20+30x.
He starts a job at 9:30 and finishes at 1 pm. So, the time x is 3.5 hours.
⇒ \(1pm-9:30 am=3.5 hours\)
Thus charge for the electrician is
⇒ \(C=20+30(3.5)\)
⇒ \(C=125\)
Hence we can conclude that the charge for Piere's work is $125 by using the formula C = 20+30x.
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-3x-2=
-3x-2=
-3x1.5=
-3x3=
Answers
Answer:
a,6. b, 6 c, -4.5. d, -9
Step-by-step explanation:
a, -3*-2
3*2. b/c of -ve * -ve is positive the answer comes 6
b, same as a
c, -3*1.5
- 4.5
d, -3*3
- 9
What is an equation of the line that passes through the point
(−5,−6) and is parallel to the line
x+5y=25?
Answers
Answer:
y=-5x-4
Step-by-step explanation:
y=mx+b
-5=-5m+b
-5=-1+b
b=-4
y=-5x-4
:D
Reflect
1. When you move the decimal point, how can you know whether you are
increasing or decreasing the number?
Answers
Answer:
If u divide a number the number will decrease
if u multiply the decimal number it will increase.
when multiplying u move the decimal point to the right
if u r dividing u move the decimal point left
how much u move depends on the number of zeros from the number u are dividing or multiplying
Step-by-step explanation:
No need for explanation
Answers
Answer:
x=7
Step-by-step explanation:
Answer:
x = 7
Step-by-step explanation:
x + 2x + 69 = 90
3x + 69 = 90
3x = 21
x = 7
A linear function has an x-intercept of 8 and a y-intercept of 4 . which of these is an equation of the linear function?
Answers
The linear function is y = (-1/2)x + 4.
What is a linear function?
A linear function whose graph is a straight line and which is represented by an equation of the form y = ax + b where a and b are constants, a does not equal zero, and x is any real number.
Here, we have
Given,
A linear function has an x-intercept of 8 and a y-intercept of 4.
So, The two points on the line are (8, 0) and (0, 4).
Now, slope(m) = (4 - 0)/(0 - 8).
slope(m) = -4/8.
slope(m) = -1/2.
As it has a y-intercept of 4 it is the value of b, In y = mx + b.
Hence, the linear function is y = (-1/2)x + 4.
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Help me solve this please.
Answers
The answer would be D.) 29.8 units
Hope this helps have a great day :)
Which circle has a center angle that measures 40 degrees
Answers
Answer: B
Step-by-step explanation:
A center angle is an angle that has rays that originate from the center.
math questions! :D
i don’t get it:((
Answers
See the attachment for the formulas
Above answer's I'd is of mine and I told u in the comments that I'll give you the formulas so here they are
Consider quadrilateral MATH with vertices (0,0), (s,O). (s,t) and (O,t). Sarah used the distance formula to prove that MT=AH. What conclusion can be made from Sarah's calculations?
Answers
Step-by-step explanation:
You could say that the diagonals are congruent.
Tonya wants to estimate what proportion of the seniors and juniors in her school plan to attend prom. She interviews an SRS of 120 of the 1200 seniors in her school and finds that 96 plan to go to the prom.
If she were to construct a confidence interval for the true proportion of juniors and seniors at her school who are planning on attending prom, what would the value of the point estimate be?
Answers
The point estimate of the confidence interval is given as follows:
0.8.
How to obtain the point estimate of a population mean?When we have a sample in the context of this problem, which is a group from the entire population, the point estimate for the population mean is given as the sample proportion.
The sample proportion is calculated as the number of desired outcomes divided by the number of total outcomes.
96 out of 120 students plan to go to the prom, hence the point estimate of the confidence interval is given as follows:
96/120 = 0.8.
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Please answer correctly !!!!!!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
Answers
A Bank for the United States.
Jefferson believed that individual states could create charter banks that could distribute money. He also opposed that the constitution did not give the nation government the necessary power to establish a financial bank.
Pls help with this Find the circumference of the object. Use $3.14 or 22/7 for Pi. Round to the nearest hundredth if necessary.
Answers
Answer: Plese mark brainlest
the circumference is 12.56meters squared
Step-by-step explanation:
Please help me - 15 points
The percentage of battery remaining, y, on a tablet's battery after x hours can be represented by the given graph.
coordinate grid with the x axis labeled time in hours and the y axis labeled percent of battery remaining, with a line that passes through the points 0 comma 80 and 8 comma 0
What is the meaning of the y-intercept in the context of the problem?
The tablet will not have any battery remaining after 8 hours.
The tablet loses 8 percent of battery every hour.
After 80 hours, the tablet will have 0 percent of battery left.
The tablet starts with 80 percent of battery remaining.
Answers
The y-intercept in the context of the problem means that the tablet starts with 80 percent of the battery remaining.
Option D is the correct answer.
What are coordinates in a graph?The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.
We have,
The coordinates from the graph are:
(0, 80) and (8, 0).
Now,
(0, 80) is the y-intercept.
It means that at 0 hours, the percentage of battery is 80%.
Now,
(8, 0) is the x-intercept.
It means that after 8 hours, the percentage of battery is 0.
Thus,
The y-intercept means,
The tablet starts with 80 percent of the battery remaining.
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Kirti bookstore sold books worth Rs.285891 in the first week of june and books worth Rs.400768 in the second week of the month .How much was the sale for two weeks together ? In which week was the sale greater and by how much?
Answers
Answer: A)Sale for two weeks =Rs. 686,659. b)\Kriti books had greater sales in the second week than the first by Rs.114877
Step-by-step explanation:
Price of books sold in the first week=Rs.285891
Price of books sold in the second week=Rs.400768
Total Amount of books sold in the two weeks=Rs.285891 +Rs.400768 =
Rs. 686,659.
Fro the question, we can see that Kriti books store has more sales in the second week.
Which is greater than in the first week by Rs.114877
Rs.400768 -Rs.285891 =Rs.114,877
i need help asap thanks
Answers
Answer:
c i believe is the answer
Step-by-step explanation:
Bc the rise of the coordinates is two of the boxes up and two of the boxes is 40(20 each)