Please help, and please dont just take my points, thats happened twice already.
Answer:
taken
Step-by-step explanation:
James surveyed people at school and asked whether they bring their lunch to school or buy their lunch at school more often. The results are shown below.
Bring lunch: 46 males, 254 females
Buy lunch: 176 males, 264 females
The events "male” and "buys lunch” are not independent because
P(buys lunch | male) = P(male) = 0.4.
P(male | buys lunch) = P(male) = 0.3.
P(buys lunch | male) = 0.3 and P(male) = 0.4.
P(male | buys lunch) = 0.4 and P(male) = 0.3.
Answer:
The correct option is 4.
Step-by-step explanation:
Given information:
Bring lunch : 46 males, 254 females
Buy lunch : 176 males, 264 females
Total number of peoples is
[tex]46+254+176+264=740[/tex]
Total number of males is
[tex]46+176=222[/tex]
The probability of male is
[tex]P(Male)=\frac{Males}{Total}=\frac{222}{740} =0.3[/tex]
Since probability of males is 0.3, therefore options A and C are incorrect.
Total number of persons who buys lunch is
[tex]176+264=440[/tex]
The probability of persons who buys lunch is
[tex]P(\text{Buys lunch})=\frac{\text{Buys lunch}}{Total}=\frac{440}{740} =\frac{22}{37}[/tex]
We need to find the probability of P(male | buys lunch).
According to the conditional probability, we get
[tex]P(\frac{A}{B})=\frac{P(A\cap B)}{P(B)}[/tex]
P(male | buys lunch)[tex]=\frac{P(\text{male }\cap \text{ buys lunch})}{P(\text{buys lunch})}[/tex]
P(male | buys lunch)[tex]=\frac{\frac{176}{740}}{\frac{22}{37}}[/tex]
P(male | buys lunch)[tex]=\frac{2}{5}=0.4[/tex]
Therefore the correct option is 4.
Answer: it’s D
Step-by-step explanation:
Now lemme get on tik tok dang
How much change will you get back if you bought three $0.99 chocolate bars and paid with a $5 bill
A Realtor earns a 3.25% commission on the sale of each house. How much did a house sell for if Realtor earned 10,566.40
Answer:
He sold the house for $325,120.
Step-by-step explanation:
A realtor earns a 3.25% commission on the sale of each house.
He earned his commission on a house sell = $10,566.40
Let the price on which he sold a house be 'p'
Therefore, 3.25% × p = $10,566.40
0.0325 × p = 10566.40
p = [tex]\frac{10,566.40}{0.0325}[/tex]
p = $325,120
He sold the house for $325,120.
Choose the fraction that has not been reduced to simplest form.
10/19
15/16
19/38
21/34
9th: 20%
10th: 40%
11th: 30%
12th: 10%
The students in four grades in the TopTalent High School are shown above. If the difference between the total number of students in 11th and 12th grade and the total number of students in the 9th and 10th grade is 100, how many students are there at the school?
The total of students in 11th and 12th grade is 30% + 10% = 40% of the students at the school.
The total of students in the 9th and 10th grade is 20% + 40% = 60% of the students at the school.
The difference between the groups is 60% - 40% = 20% of the students at the school. That difference is 100 students, so 20% of the student body is 100 students. Multiplying by 5 tells us 100% of the student body is 500 students.
20 PTS
line segment jk and jl in the xy-coordinate both have a common endpoint j(-4,11) and midpoints an mv1(2,16) and mv2 (-3,5) respectively.
What is the distance between mv1 and mv2? round to the nearest tenth
Please help me, I’m lazy
6p(p-8) monomials times polynomials
Subtract using the number line.
−2/3−(−1 1/3)
a) −1 2/3
b) −2/3
c) −1/3
d) 23
The equation -2/3 - (-1 1/3) simplifies to -2/3 + 4/3, which ultimately equals 2/3. To solve this, we convert mixed numbers to improper fractions and add, since subtracting a negative is the same as adding a positive. The correct option is B.
To solve the equation -2/3 - (-1 1/3), we need to subtract a negative number, which is the same as adding its positive equivalent. First, convert the mixed number -1 1/3 to an improper fraction. Since 1 is equal to 3/3, -1 1/3 is the same as -1 - 1/3, or -3/3 - 1/3, which simplifies to -4/3. Now we have -2/3 - (-4/3), which is the same as -2/3 + 4/3. Combining these fractions gives us 2/3, which is the positive solution to the equation.
The expression 3(x^2-1)-(x^2-7x+10) is equivalent to
what is the answer to -1/2(t+9)+5 3/4t=3/8t
Perpendicular to y = 3x + 4 through (0, -2)
simplify
10x-12y+8+12y
A triangle has a base 7m and area 17.5m. what is the height?
770 Times 6 equals 77 Times 6 Times 100
A square has an area of 4x^{2} + 12xy + 9y^{2} square meters. What is the perimeter of the square?
Answer:
Perimeter = 4L = 4(2x+3y) = 8x+12y
Step-by-step explanation:
Given:
square with area A(x,y) = 4x^2+12xy+9y^2
Find perimeter.
A(x,y) = (2x+3y)^2
Length of each side
L = sqrt( A(x,y) ) = sqrt((2x+3y)^2) = 2x+3y
Perimeter = 4L = 4(2x+3y) = 8x+12y
Factor the expression. 49b^2+70b+25
Wat is 940 divided by 20
This is Geometry, can someone tell me if this is right?
in a survey 2,000 people who owned a certain type of car, 1,100 said they would buy that type of car again what percent of people surveyed were satisfied with the car
Answer:
The percentage of people surveyed that were satisfied with the car is 55%.
Step-by-step explanation:
The statement indicates that in a survey 1,100 people of 2,000 surveyed said that they would buy the car they have again and from this, you can inferred that they are satisfied with the car. So, to calculate the percentage of people surveyed that were satisfied with the car you have to divide 1,100 by 2,000 that is the total number of people surveyed and then, multiply the result by 100:
1,100/2,000=0.55*100= 55%
how to estimate and multiply 83x367
z ÷ 4 - 8z + 2(z - 5) when z = 12
Describe how you regroup when you find the sum of 64+43
The required regroup of the sum of 64+43 into 60+4 and 43 into 40+3.
What is the number system?A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches.
The sum of two numbers is given in the question as:
64 + 43
As per the given condition, the required solution would be as:
To regroup, just separate the larger numbers into smaller amounts that can be put together more easily. We frequently reorganize numbers into those that terminate in 0 because they are easier to add. For example, 64 may be divided into 60+4 and 43 into 40+3. This makes adding easy since you can first add 60 and 40, which equals 100. The smaller numerals 100+4+3=107 can then be added.
Thus, the required regroup of the sum of 64+43 into 60+4 and 43 into 40+3.
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A relation is a function if _____.
there is exactly one input for each output
there is exactly one output for each input
there is more than one input for each output
there is more than one output for each input
Answer:
1 output for 1 input
Step-by-step explanation:
A relation is a function if there is exactly one output for each input.
Hence, Option 3 is true.
We know that;
A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given that;
A relation is a function.
Hence, We get;
A relation is a function if there is exactly one output for each input.
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Charlie graphs the equation y= –1/2x+2 . Select all statements about Charlie's graph that are true. The graph is a straight line. The line does not pass through the origin. The line passes through the point (0, –2) . The slope of the line is 12 . The y-intercept of the line is 2.
Answer:
Step-by-step explanation:
The graph is a straight line.
The line does not pass through the origin.
The y-intercept of the line is 2.
Use slope formula,, to find the slope of a line that passes through the points (–3, 8) and (4, –6).
m =
Use slope-intercept form, y = mx + b, to find the y-intercept (b) of the line.
b =
What is the new equation written in slope-intercept form, y = mx + b?
Answer:
m=-2
b=2
Equation in Slope-Intercept Form: y= -2x+2
Step-by-step explanation:
The slope-intercept form, y = mx + b of the given line will be y = -2x + 2.
What are a line and its slope?
A line section that can connect two places is referred to as a segment.
The slope of a line is tan of the angle from the positive x-axis.
In other words, the slope is just the intensity of inclination of any curve at a point for example x = sinx has 0 inclination at x = 0.
The line is here! It extends endlessly in both directions and has no beginning or conclusion.
Given that the points are (–3, 8) and (4, –6).
Slope m = difference in y coordinate/difference in x coordinate
m = (-6 - 8)/(4 +3 ) = -2
So our equation will be
y = -2x + n
Now for b put (4, –6) than
n = 2 so
The equation will be y = -2x +2 hence it will be the correct answer.
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graph the function y=5x+4 with the domain x ≤ 0
The graph of the function y = 5x + 4 with domain x ≤ 0 is shown below.
What is graph?A graph is a diagram that depicts the relationship between two variables, usually measured along opposite axes in a pair, is used.
The given function is,
y = 5x + 4
And the domain of the function is x ≤ 0.
To draw the graph of the line y = 5x + 4
The slope of the line m = 5.
And y intercept at x = 0
y = 5(0) + 4
y = 4
Also, the domain is x ≤ 0.
So the graph can be represented as given below.
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what is 5 1/6 as a rational number
The mixed number 5 1/6 can be converted into a rational number. This is done by multiplying the whole number by the denominator, adding the numerator, and then placing this value over the denominator. Thus, 5 1/6 as a rational number is 31/6.
Explanation:The number 5 1/6 is a mixed number. You can convert it to a rational number, which is a number that can be expressed as a quotient or division of two integers. A rational number is represented by 'p/q' where p and q are integers and q is not equal to 0.
To convert 5 1/6 into a rational number, you would first multiply the whole number (5) by the denominator of the fraction (6), then add the numerator of the fraction (1). This gives you the new numerator. The denominator remains 6. The calculation would look like this: (5×6 + 1)/6 = 31/6.
So, 5 1/6 as a rational number is 31/6.
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Which of the following are true statements about the expression -7 + 7
1.The expression describes the number that is 7 to the left of -7 on the number line
2.The expression describes the number that is 7 to the right of -7 on the number line.
3.The expression equals -14
4. The expression equals 0.
Chose all answers that apply
Answer:
2
Step-by-step explanation:
on algebra nation, it would be B