The value of the number is 9
Solving linear equationsFrom the question, we are to determine the number
From the given information,
"3 times a number is increased by 22"
Let the number be x
Thus,
3x + 22
"the result is 14 less than 7 times the number"
That is,
3x + 22 = 7x - 14
Now, solve the equation
3x + 22 = 7x - 14
22 + 14 = 7x - 3x
36 = 4x
x = 36/4
x = 9
Hence, the value of the number is 9
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At a swim meet, the order of the divers is randomly selected. If there are 12 divers, what is the probability that Danielle, Nora, and Li will dive first, second, and third, respectively?
The probability that Danielle, Nora, and Li will dive first, second, and third, respectively is 1/1320.
Since we are provided that in the meet, the orders of the drivers are randomly selected so, the total number of drivers is: 12
let A be the event in that Danielle was the first to dive.
B be the event that Nora been the second to dive.
and C is the event that Li has been the third to dive into.
P(A), probability of Danielle to dive first = 1/12
P(B), probability of Nora to dive second = 1/11
and P(C), probability of Li to dive in third = 1/10
So, the total probability that Danielle, Nora, and Li will dive first, second, and third, respectively = P(A) x P(B) x P(C)
= 1/12 x 1/11 x 1/10
= 1/ 1320
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Write each equation in slope-intercept form. -4 x+3 y=1
The slope - intercept form of the equation -4 x+3 y=1 is y = 4/3x + 1/3.
How do we find slope - intercept form?Calculate the slope (m). Keep in mind that the slope is determined by dividing the change in y by the change in x. (rise over run).Find the y-value of the y-intercept by solving (b).In the formula y=mx+b, swap out m and b with their respective values.The equation given is -
-4 x+3 y=1
As we know the slope - intercept form is -
y = mx + c
-4 x+3 y=1
Dividing the equation with 3
⇒ -4/3x + y = 1/3
Now, rearranging the equation
y = 4/3x + 1/3
where slope = 4/3
y - intercept = 1/3
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Write the equation of the line through each point. Use slope-intercept form.
(-3,1) ; perpendicular to y = -(2/5)x-4
The equation of the line in slope-intercept form passing through point (-3 , 1) and perpendicular to y = -(2/5)x - 4 is y = (5/2)x + 17/2
The equation of a line can be expressed in three different forms: standard form, slope-intercept form, and point-slope form.
The slope-intercept form of the equation of a line is given by the formula
y = mx + b
where m is the slope of the line
b is the y- intercept
If the line is perpendicular to y = -(2/5)x - 4, then their slopes are negative reciprocal of one another.
y = -(2/5)x - 4 : m = -2/5
m = 5/2
Substitute the values of the slope and the point to solve for the y-intercept, b.
y = mx + b
1 = 5/2(-3) + b
b = 17/2
Write the equation of the line by plugging in the value of the slope and y-intercept.
y = mx + b
y = (5/2)x + 17/2
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Greg bought a blanket for $36.62, a flag for $11.25, and a glove for $17.75. He paid $60 and the rest he borrowed from his friend. If Greg got $4.38 in change from the cashier, how much did he borrow from his friend to pay for all the items?
Answer:
$10
Step-by-step explanation:
Let's begin with adding all of the items Greg bought.
36.62 + 11.25 + 17.75 = 65.62
Let the money paid to the cashier be x.
Now, it's stated he paid 60 dollars to the cashier and that he also got $4.38 back from the cashier.
Then, it must be that x=65.62+4.38
x=70
The money he borrowed from friend = 70-60=10
Therefore, the money Greg borrowed from his friend to pay for all the items is $10.
Greg borrowed $1.24 from his friend.
What is Unitary Method?A single unit's value may be determined from the values of multiple units, and multiple units' values can be determined from the values of single units using the unitary technique. We typically utilise this technique for math computations.
This approach allows us to calculate both the value of many units from the value of one unit and the value of many units from the value of one unit.
Given:
Greg bought a blanket for $36.62,
a flag for $11.25,
and a glove for $17.75.
Total expense of the objects he brought
= 36.62+ 11.25 + 17.75
= $65.62
He paid $60 then
=65.62 - 60 = $5.62 remaining
Also, he got $4.38 in change from the cashier
= 5.62 - 4.38
= $1.24.
Hence, Greg borrowed $1.24 from his friend.
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For each function, determine whether y varies directly with x . If so, what is the constant of variation?
a. 5 x+3 y=0
-5/3 is the constant of variation where y varies directly with x.
How to solve an equation?To solve linear equations, utilize the steps that are provided below.
Remove parentheses from each side of the equation and combine similar terms to make it simpler.To separate the variable term on one side of the equation, use addition or subtraction.To find the variable, use division or multiplication.The common denominator can be multiplied by each side of the equation to eliminate fractions.Lets take an example of solve z for 7z – (3z – 4) = 12
Here is no multiplication or division, so this will be easy to solve
⇒ 7z – (3z – 4) = 12
⇒ 7z – 3z + 4 = 12
⇒ 4z = 12 – 4
⇒ 4z = 8
⇒ z = 8/4
⇒ z = 2
See, that was so simple, using the mentioned methods, every linear equation can be solved easily.
A DIRECT VARIATION is a mathematical relationship between two variables that can be stated mathematically by an equation in which one variable equals a constant times the other. y = kx
⇒ 5 x+3 y=0
⇒ 3y= -5x
⇒ y = -5x/3
Thus, y = -5/3 × x, here k is constant = -5/3
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Need da answer pls and thank u point will be 100
The lessons from Clare B. Dunkie's The Hollow Kingdom, and the quote it matches are:
"If you love her enough to give up your world for her, don't you think she would want to do the same for you?" - People are willing to make sacrifices for the people they care about.She looked around at the stars, the moon, the trees. These were things she could count on. - Nature can be a source of courage and comfort.What are some lessons from Clare B. Dunkie's The Hollow Kingdom?One lesson that we see is that people who care about someone, are able to make sacrifices to ensure the wellbeing of that person. We see it with the narrator saying that the person loved another so much that they sacrificed their world for that person.
Another less is that nature can often help us gain the courage we need to do something. This is shown with the subject looking to the moon and stars to back her up.
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[ Brainliest ]
On a coordinate plane, the ___ is the place where the x-axis and y-axis intersect.
answer should be origin
I need help with 43 please
Answer:
6y ≤ 10
Step-by-step explanation:
6 times a number y= 6y
less than or equal to = ≤
10 = 10
so...
6y ≤ 10
Answer:
6y = 10
Step-by-step explanation:
List the outliers. if there is more than one outlier, separate them by a comma. use "none", if applicable. for the data set 3 6 4 13 3 7 5 13 3 7 5 15 3 8 5 27 4 8 6 6 4 11
For the data set 3, 6, 4, 13, 3, 7, 5, 13, 3, 7, 5, 15, 3, 8, 5, 27, 4, 8, 6, 6, 4, 11, the outliers are 3, 3, 3, 3, 15, and 27.
In statistics, outlier refers to the data point from a given data set that differs significantly from the other data points.
One way to determine the outlier in a given data set is to calculate the interquartile range.
1. Arrange the data set in ascending or descending order.
3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 8, 8, 11, 13, 13, 15, 27
2. Divide the data set into two sets and find the median.
{3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6} , {6, 6, 7, 7, 8, 8, 11, 13, 13, 15, 27}
Q1 median = 4
Q3 median = 8
3. Solve for the IQR.
IQR = Q3 - Q1
IQR = 8 - 4
IQR = 4
4. Determine the outlier if
high outlier ≥ Q3 + (1.5 x IQR) = 8 + (1.5 x 4) = 14
high outlier ≥ 14
low outlier ≤ Q1 − (1.5 x IQR) = 4 - (1.5 x 4) = 3
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1) -7+5= 2) 7+5 3) 7+ (-5) 4) 2+9 5) 2+(-9) adicion de numeros enteros 6) -2+9 7) 8+(-8) 8) -5+5 9) -3+(-3) 10) -5+(-5) sustraccion de numeros enteros 1) 7- (-5) 2) -7- (-5) 3) 7- (+5) 4) 2- (-9) 5) -5- (-10) 6) 5-5 7) -8- (+20) 8) -3- (-3) 9) -5- (+12) 10) 8- (+10) porfi
The results of the expressions given are:
Part 1:
1) -2
2) 12
3) 2
4) 11
5) -7
6) 7
7) 0
8) 0
9) - 6
10) - 10
Part 2:
1) 12
2) - 2
3) 2
4) 11
5) 5
6) 0
7) - 28
8) 0
9) - 17
10) -2
We solve the equations respecting the level of hierarchy:
First the operations in parentheses, then brackets and finally braces.Of the arithmetic operations, first the multiplication and divisions and then the additions and subtractions.Two like signs add the values and keep the common sign.Two unlike signs subtract the values and use the highest value sign.Part 1:
1) -7+5= -2
2) 7+5 = 12
3) 7+ (-5) = 7 - 5 = 2
4) 2+9 = 11
5) 2+(-9) = 2 - 9 = -7
6) -2+9 = 7
7) 8+(-8) = 8 - 8 = 0
8) -5+5 = 0
9) -3+(-3) = - 3 - 3 = - 6
10) -5+(-5) = - 5 - 5 = - 10
Part 2:
1) 7- (-5) = 7 + 5 = 12
2) -7- (-5) = - 7 + 5 = - 2
3) 7- (+5) = 7 - 5 = 2
4) 2- (-9) = 2 + 9 = 11
5) -5- (-10) = - 5 + 10 = 5
6) 5-5 = 0
7) -8- (+20) = - 8 - 20 = - 28
8) -3- (-3) = - 3 + 3 = 0
9) -5- (+12) = - 5 - 12 = - 17
10) 8- (+10) = 8 - 10 = -2
What are algebraic operations?We can say that they are the set of numbers and symbols that are related by the different mathematical operation signs such as addition, subtraction, multiplication, division among others.
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What type of errors do you think scientist make with measurements?
Ready?
Answer:
The errors that may occur in the measurement of a physical quantity can be classified into six types: constant error, systematic error, random error, absolute error, relative error and percentage error.
Step-by-step explanation:
Hope this will be helpful for you.
Find the missing term(s) of each arithmetic sequence. -4.6,□ ,-5.2, . . .
The missing term of the sequence is - 4.9.
Here the sequence is -4.6, __, -5.2....
An arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.
Here the sequence is in an arithmetic sequence, as there is a common difference between them.
The nth term of the sequence has a formula
[tex]a_{n}[/tex] = a + (n - 1) d
Here we know the 3rd term of the sequence so that we can find the common difference between them
[tex]a_{3}[/tex] = -4.6 +(3-1)d
-5.2 = -4.6 + 2d
0.6 = 2d
d = 0.3
So here the common difference is 0.3.
Now we have to find the 2nd term of the sequence,
[tex]a_{2}[/tex] = -4.6 + ( 2-1) 0.3
= -4.6 + 0.3
= - 4.9
Therefore the second term of the sequence is -4.9.
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Find the distance between the pair of points. Round to the nearest tenth.
W(2,0) and X(8,6)
Distance between the pair of points W(2,0) and X(8,6) is equal to
8.5 units(nearest tenth).
As given in the question,
Given points are W(2,0) and X(8,6)
Distance between the pairs of points = [tex]\sqrt{(y_{2}-y_{1})^{2}+(x_{2}-x_{1})^{2} }[/tex]
= [tex]\sqrt{(6-0)^{2}+(8-2)^{2} }[/tex]
= [tex]\sqrt{36 +36}[/tex]
=[tex]\sqrt{72}[/tex]
= [tex]8.5[/tex] units (nearest tenth)
Therefore, distance between the pair of points W(2,0) and X(8,6) is equal to 8.5 units (nearest tenth).
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-4(m+3)=24
SHOW YOUR WORK
Answer:
Answer: M=-9
Step-by-step explanation:
[tex]\frac{-4(m+3)}{-4} =\frac{24}{-4} M + 3 = -6 (Subtract -3 from 3 and -6) M = -9[/tex]
A 95onfidence interval for population mean will be wider than a corresponding 99onfidence interval.
true/false
The statement "A 95% confidence interval for the population mean will be wider than a corresponding 99% confidence interval." is true.
What is a confidence interval for population standard deviation?It is defined as the sampling distribution following an approximately normal distribution for known standard deviation.
The formula for finding the confidence interval for population standard deviation as follows:
[tex]\rm s\sqrt{\dfrac{n-1}{\chi^2_{\alpha/2, \ n-1}}} < \sigma < s\sqrt{\dfrac{n-1}{\chi^2_{1-\alpha/2, \ n-1}}}[/tex]
Where s is the standard deviation.
n is the sample size.
α is the significance level.
σ is the confidence interval for population standard deviation.
Calculating the confidence interval for population standard deviation:
We know significance level = 1 - confidence level
The statement is:
A 95% confidence interval for the population mean will be wider than a corresponding 99% confidence interval.
As we know,
A 95% confidence interval is narrower than a 99% confidence interval.
Thus, the statement "A 95% confidence interval for the population mean will be wider than a corresponding 99% confidence interval." is true.
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17. The depth d of an aquarium tank for dolphins must be within a 5 feet margin of 50/feet deep. Write the absolute
value inequality to represent this situation.
The absolute value inequality to represent this situation is |d - 50| <= 5
How to write the absolute value inequality to represent this situation?The given parameters are
Margin = 5 feet
Depth = 50 feet
The absolute value inequality to represent this situation is
|d - Depth| <= Margin
So, we have:
|d - 50| <= 5
Hence, the absolute value inequality to represent this situation is |d - 50| <= 5
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State whether the sentence is true or false. If false, replace the underlined word or number to make a true sentence.
If p || q , then ∠2 and ∠8 are supplementary .
The statement "If p || q , then ∠2 and ∠8 are supplementary" is false because " If p || q , then ∠2 and ∠8 are congruent"
Given,
The statement "If p || q , then ∠2 and ∠8 are supplementary"
In the figure
p is parallel to q.
∠2 and ∠8 are lie on the opposite sides of the transversal and both are nonadjacent exterior angle
So, ∠2 and ∠8 are alternate exterior angles
If p || q , then ∠2 and ∠8 are congruent.
Hence, The statement "If p || q , then ∠2 and ∠8 are supplementary" is false because " If p || q , then ∠2 and ∠8 are congruent"
The complete question is :
State whether the sentence is true or false. If false, replace the underlined word or number to make a true sentence.
If p || q , then ∠2 and ∠8 are supplementary .
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Which is the equation of a line perpendicular to line AB?
Answer:
Step-by-step explanation:
y = -3x + 7
since the slope of the line AB = (4 - 2) /( 3 - (-3)) = 1/3
slope of line perpendicular to AB will be -3
what's the pattern? 7,11,19,35
The pattern of each number changes.. they are all factors of 4, the 4 turns into 8, than the 4 or 8 turns into 16.
7+4=11
11+8=19
19+16=35
[4×2=8, 8×2=16]
Another one please anyone available to help?!
The prime factors of 80 are 2, 2, 2, 2, and 5, then its decomposition is:
80 = 2*2*2*2*5 = 2⁴*5
How to express a number as a product of its prime factors?
To do this, we start with our number, which in this case is 80, and we start dividing it by prime numbers.
The first prime number is 2, taking the quotient:
80/2 = 40
So 2 is a factor.
Now we try to divide again by 2:
40/2 = 20
Now we can divide by 2 again:
20/2 = 10
And again:
10/2 = 5
And 5 is another prime number, so now we only can divide by 5:
5/5 = 1
So, we divided by 2 four times and by 5 one time, then the decomposition in prime factors is:
80 = 2*2*2*2*5 = 2⁴*5
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Identify each sequence as arithmetic, geometric, or neither. Then find the next two terms. -5,10,-20,40, . . . . . . .
It is a geometric sequence since it has a common ratio. The next two terms are -80, 160
Let a sequence be:
a(1), a(2), a(3), a(4), a(5), ...
To determine whether the sequence is an arithmetic sequence, or a geometric sequence, or neither, we need to check how its consecutive terms relate to each other.
They have a common difference.The given sequence is:
-5,10,-20,40, . . .
Let us check whether they have a common difference:a(2) - a(1) = 10 - (-5) = 15
a(4) - a(3) = 40 - (-20) = 60
So they don't have a common difference.
Let us check whether they have a common ratioa(4)/a(3) = 40/(-20) = -2
a(3)/a(2) = -20/(10) = -2
a(2)/a(1) = 10/(-5) = -2
So they have a common ratio, i.e. r = -2.
Therefore, we can conclude that -5,10,-20,40, . . is a geometric sequence.
In a geometric sequence, the next term is equal to the previous term times the ratio.
We already have: -5,10,-20,40, ...
Hence:
Next term after 40 = 40 . (-2) = -80
Next term after -80 = -80 . (-2) = 160
Thus, the next two terms are -80, 160
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Determine whether each sequence is geometric. If so, find the common ratio. 1,2,3,4, . . . . .
The given sequence is not geometric.
What is a geometric progression?A geometric progression, sometimes referred to as a geometric sequence in mathematics, is a series of non-zero numbers where each term following the first is obtained by multiplying the preceding one by a constant, non-zero value known as the common ratio.
Given: 1, 2, 3, 4, ....
Here, 2/1 ≠ 3/2 ≠ 4/3
Since, the none of the ratio of the consequent and the previous term is not equal, the sequence does not satisfy the required condition and hence, is not geometric.
Hence, The given sequence is not geometric.
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List the domain and range of each relation. (0,4)_,(4,0),(-3,-4),(-4,-3)
Range - { 4 , 0 , -4 , -3 } is the domain and range of each relation.
What does the math term domain mean?
The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f make up this set (x). A function's range is the collection of values it can take as input. After we enter an x value, the function outputs this sequence of values.What is domain and range mathematics?
A function's range is the set of all values that the function accepts, and its domain is the set of all values for which the function is defined.
Domain - { 0, 4 , -3 , -4 }
Range - { 4 , 0 , -4 , -3 }
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Bo the baker makes the best cookies! His recipe for triple-chip cookies uses 1/2 cups of chocolate chips, 3/4 cup of butterscotch chips, and 5/8 cup of peanut butter chips. Yum! How many cups of chips does Bo use to make one batch of triple-chip cookies?
Answer:
1/2 + 3/4 + 5/8
4/8 + 6/8 + 5/8 = 15/8 or 1 7/8 cups
Step-by-step explanation:
probably right dunno
This is one batch right? if so shud be right
The box-and-whisker plot below represents some data set. What is the value of the second quartile?
The median is at 55. Therefore, the second quartile of the data set is: 55.
What is the Second Quartile of a Data?50% of any given data set lies below the second quartile. Thus, the second quartile can be described as the median of a data set.
In a box-and-whisker plot, the median is the mark at where the vertical line divides the box of the box-and-whisker plot.
In the box-and-whisker plot given, the median is at 55. Therefore, the second quartile of the data set is: 55.
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12x + 8x + 3 + x
Is it
3x+12
-9x+6 2/3
21x+3
24x
-15x+8.3
Answer:
see explanation
Step-by-step explanation:
a bit more info is needed so this may be wrong.
so first you add up the x values which is 12x+8x+x=21x
then you can see we have a problem, we dont know the x value so the answer would be 21x +3
but we can go a bit further to get an answer as 3(7x+1)
this is also known as factorisation.
so ans: 3(7x+1)
-9(-4)-6 find the value of expression
Answer:
30
Step-by-step explanation:
-9 × -4 = 36 (the two negatives cancel each other out)
36 - 6 = 30
Namid bought 20 raffle tickets. If a total of 500 raffle tickets were sold, what is the probability that Namid will not win the raffle?
According to the question, Namid bought [tex]20[/tex] raffle tickets. And the total number of raffles sold was [tex]500[/tex].
Now. to calculate the probability in which Namid will not win the raffle:
[tex]P(Win) = \frac{P(E)}{n(E)} = \frac{20}{500} = \frac{1}{25}[/tex]
[tex]P(No Win) = 1-P(Win) = 1 - \frac{1}{25} = \frac{24}{25} = 96%[/tex]
Therefore, the probability that Namid will not win the raffle is [tex]96[/tex] percentage.
What is Probability?
The term probability means the study of the occurrence or the outcomes of the event. It is the measurement of the events that occurred during events. And many uncertain events cannot be measured.
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Write each equation in slope-intercept form. Then find the slope and y -intercept of each line. 5 x+y=4
The slope for equation y = -5x + 4 in slope - intercept form is -5 and y - intercept is (x, 4 ).
What is slope - intercept form of equation?The line with m as the slope, m and c as the y-intercept is the graph of the linear equation y = mx + c. The values of m and c are real integers in the slope-intercept form of the linear equation. The slope, m, is a measure of how steep a line is.
The slope - intercept form is y = mx + c
5x + y = 4
Now, Rearrange the equation -
y = -5x + 4
m = -5 and y intercept = (x , 4)
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Write an equivalent expression by distributing the "-−" sign outside the parentheses: -(-8.2w+10) −(−8.2w+10)
The equivalent expression by distributing the sign outside the parentheses: -(-8.2w+10) −(−8.2w+10) will be 16.4w - 20.
How to calculate the value?It should be noted that bwsed on the information given, the expression is illustrated as:
-(-8.2w+10) −(−8.2w+10)
The signs should be taken into consideration. This will be:
-(-8.2w+10) −(−8.2w+10)
= 8.2w - 10 + 8.2w - 10
= 16.4w - 20
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