The two numbers are 6 and 8.
What are the two numbers?The first step is to determine the simultaneous equations that would be used to determine the answer. The simultaneous equations would be derived from the information provided in the question.
x + y = 14 equation 1
x - y = 2 equation 2
Where:
x = larger number
y = smaller number
The simultaneous equations would be solved using the elimination method
Now, subtract equation 2 from equation 1
2y = 12
Divide both sides of the equation by 2
y = 12 / 2
y = 6
Substitute for y in equation 2
x - 6 = 2
Add 6 to both sides of the equation
x = 2 + 6
x = 8
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William Smith is choosing artisan bonsai trees. She has 15 different variants of bonsai trees and would like
to use 7 of them. How many different selections of the 7 bonsai trees are possible?
There are 6,435 different selections of 7 bonsais that William Smith can choose.
How many different selections of the 7 bonsai trees are possible?If we have a set of N elements, the number of different combinations of K elements (such that K is equal to or smaller than N) of those N elements is given by:
C(N, K) = N!/( (N - K)!*K!)
In this case, we know that she has 15 different variants of bonsai and she wants to use 7, then:
N = 15
K = 7
Replacing these values in the above formula we will get the possible combinations of bonsais.
C(15, 7) = 15!/( (15 - 7)!*7!) = 15!/( 8!*7!) = (15*14*13*12*11*10*9)/(7*6*5*4*3*2*1) = 6,435
There are 6,435 different selections of 7 bonsais.
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Answer quick I will mark brainlist
Answer:
Step-by-step explanation:
The Red circles have a probability of 1/2 of getting chosen, The red and blue circles together have an 100% chance of getting chosen because they are the total of circles. Np
if the midpoint of line AB is (4,4) and the coordinates of A is (2,1) what is the coordinates if B
The required coordinate of b is given as (6, 7 ).
To find out the coordinate of b if M is the midpoint of AB. A(1, -4) and M(-3 ,0).
What is the midpoint?
The midpoint is that point the line whose length from both the ends of the line is equal.
Here,
We have coordinates of two points i.e. A(1, -4) and M(-3, 0).
Definition of midpoint says,
x = [x₁ + x₂] / 2 ; y = [y₁ + y₂] / 2
x₁ = 2, x = 4 , y₁ = -1, y = 4
now,
4 = [2 + x₂] / 2 ; 4 = [1 + y₂] / 2
x₂ = 8 - 2 ; y₂ = 8 - 1
x₂ = 6 : y₂ = 7
Thus, the coordinate of b is given as (8, 7 ).
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A small college needs two additional faculty members: a chemist and a statistician. There are five applicants for the chemistry position and seven applicants for the statistics position. In how many ways can the college fill these positions?
By using permutation, the college can fill the position in 7 ways.
What is Permutation?Permutation shows the no. of ways to arrange the objects or elements.
The Formula for the permutation is P(n, r) = [tex]\frac{n!}{(n-r)!}[/tex]
Given data:
The college needs two additional faculty members a chemist and a statistician. There are five applications for the chemistry position and seven applications for the statistics position.
No. of ways the college can fill the position = no. of ways the college can select Statistics + no. of ways the college can select chemist
By using, the permutation method we can find the no. of ways of selection of both chemist and statistician.
No. of ways the college can fill the position =[tex]5p_{1} +7p_{1}[/tex]
= 5 + 7
= 12 ways
The college can fill the position in 12 ways.
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A real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found that the mean age was 45 years old, with a standard deviation of 10 years. Suppose that these measures are valid for the population of all home buyers. Complete the following statements about the distribution of all ages of home buyers.
According to Chebyshev's theorem, at least 56% of the home buyer's ages lie between __ years and __ years. (Round your answer to the nearest whole number)
According to Chevyshev's theorem, at least what percent of the home buyers' age lie between 25 years and 65 years.
Using Chebyshev's Theorem, it is found that:
At least 56% of the home buyer's ages lie between 30 years and 60 years.At least 75% of the home buyers' age lie between 25 years and 65 years.What does Chebyshev’s Theorem state?When the distribution is not normal, Chebyshev's Theorem is used. It states that:
At least 75% of the measures are within 2 standard deviations of the mean.At least 89% of the measures are within 3 standard deviations of the mean.An in general terms, the percentage of measures within k standard deviations of the mean is given by [tex]P = 100(1 - \frac{1}{k^{2}})[/tex].For the first item, we first have to find k when P = 56, hence:
[tex]56 = 100\left(1 - \frac{1}{k^{2}}\right)[/tex]
[tex]1 - \frac{1}{k^{2}} = 0.56[/tex]
[tex]\frac{1}{k^2} = 0.44[/tex]
k² = 1/0.44
k = sqrt(1/0.44)
k = 1.5.
Within 1.5 standard deviations, hence the bounds are:
45 - 1.5 x 10 = 30 years old.45 + 1.5 x 10 = 60 yards old.Hence:
According to Chebyshev's theorem, at least 56% of the home buyer's ages lie between 30 years and 60 years.
25 and 65 years are both 2 standard deviations from the mean, hence:
At least 75% of the home buyers' age lie between 25 years and 65 years.
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please help!
given f(x)=3(4-x), what is the value of f(-2)?
Answer:
18
Step-by-step explanation:
f(-2) = 3(4-x)
=3(4+2)
=3*6=
=18
What is the conjugate?
a √a-1
Step-by-step explanation:
In maths, Conjugates are defined as a pair of binomials with identical terms but parting opposite arithmetic operators in the middle of these similar terms. For example, p – q is the conjugate of p + q.
complex conjugate of a complex number is the number with an equal real part and an imaginary part equal in magnitude but opposite in sign. That is, the complex conjugate of {\displaystyle a+bi} is equal to {\displaystyle a-bi.}
The math conjugate of a number is a number that when multiplied or added to the given number results in a rational number. For example,
The conjugate of a surd 6 + √2 is 6 - √2.
The conjugate of a complex number 5 - 3i is 5 + 3i.
PVIF8%,5 means that the rate is[blank]
and the time is[blank]
years?
Answer:
Step-by-step explanation:
it means the rate is 8% and the time is 5 years
blank are numbers or variables that are multiplied together.
powers
bases
factors
radicals
Answer:
bases....................
A computer user has downloaded 21 songs using an online file-sharing program and wants to create a CD-R with
11 songs to use in his portable CD player. If the order that the songs are placed on the CD-R is not important to
him, how many different CD-Rs could he make from the 21 songs available to him?
Answer:
If to create a CD 9 songs are needed and user have 19 songs then he can create 33522128640 such CD's if solving through permutations.
What is permutations?
It is basically an arrangement of objects in a certain order.It is expressed as n and it is equal to n!/(n-r)!.
How to calculate ways?
We have been given that user have 19 songs and 1 CD is made from 9 songs so the number of CD's which can be made is basically the number of ways these 9 songs are arranged from 19 songs in CD's. So, the number of CD's will be 19=19!/(19-9)!
=19!/10!
=19*18*17*16*15*14*13*12*11*10!/10!
=19*18*17*16*15*14*13*12*11
=335322128640 CD's
Hence 335322128640 CD's can be made from 19 songs by the user.
HELP WITH ALLL PLEASE LABEL THE NUMBERS :))
Answer:
18. in imge
19. is D
20. 10/3 (just divided by 5)
21. 8/7 bc negtive reciprocal
22. (0,8) y-int
Step-by-step explanation:
Question Which graph represents the inequality? 2x−3y<6
I think the answer is B, the one with a complete line and shaded to the bottom
The base lengths of a trapezoidal coffee table are 6 feet and 8 feet. The height is 5 feet. What is the area of the coffee table?
Answer:
Just multiply 6x8x5
Step-by-step explanation:
If the odds in favor of an event E are a : b, then the probability of event E is?
Probability of event E is = a/c
In the given statement is:
If the odds in favor of an event E are a : b,
To find the probability of event E is
Formula for Probability
The Probability formula is defined as the possibility of an event to happen is equal to the ratio of the number of favourable outcomes and the total number of outcomes.
Probability of event to happen P(E) = Number of favourable outcomes / total number of outcomes
Now, According to the question:
Here, Number of outcomes in favor of the event = a
Number of outcomes in against the event = b
Total Outcomes => a + b = c
Therefore, Probability of event E is = a/c
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The Smiths went to the Cape for a wedding. They left at 11 a.m. They traveled 180 miles and drove at 60 miles per hour. What time did they reach their destination"
O 1:00 p.m.
Answer:
I think it should be 1 pm
Step-by-step explanation:
The Smiths left at 11 am and traveled 180 miles. If they drive at 60 miles per hour, that means that they traveled for 2 hours because 180 divided by 60 is two. That means they traveled for 2 hours and arrived at 1 pm.
Ji-yoon started the week with a balance of -$90 in her checking
account. She then wrote a check for $130. Write an expression with
addition that can be used to find the new balance.
Answer:
-$90 + $130= $40
Step-by-step explanation:
Im not sure if this is what you were looking for
The rectangular coordinate system shows the graph of the equations in a system of equations. Use the graph to determine the number of solutions for the system. If the system has only one solution, give its coordinates.
Answer:
A. The only solution is (-2, 1).
Step-by-step explanation:
Given a graph of two lines, you want the number of solutions to the system of equations the lines represent.
SolutionThe graph of an equation represents all of the points that satisfy that equation. When a system of equations has more than one equation, the set of points that satisfies all of the equations is the set of points where the graphs intersect (overlap) each other.
Here, the two straight lines intersect at exactly one point: (-2, 1). That one point represents the only solution to the system of equations.
The only solution is (-2, 1).
Evaluate the expression when x= 6 and y= -4.
-x + 6y
Answer:
Step-by-step explanation:
substitute the value for x and y
-6 + 6(-4)
= -6 -24
= -30
Answer:
-30
Step-by-step explanation:
plug in variables
-6 + 6(-4)
-6+ -24
= -30
50 points
A finance magazine did a survey and found that the average American family spends $1,600 on a summer vacation. If the distribution is normal with standard deviation $411, find the amount a family would have spent to be the 80th percentile.
Answer:
$1,945.91
Step-by-step explanation:
To find the amount a family would have spent to be at the 80th percentile, we can use the normal distribution.
If a continuous random variable X is normally distributed with mean μ and variance σ², it is written as:
[tex]\boxed{X \sim\text{N}(\mu,\sigma^2)}[/tex]
Given that the average spending on a summer vacation is $1,600 and the standard deviation is $411:
Mean μ = $1,600Standard deviation σ = $411We need to convert the problem to the standard normal distribution by calculating the z-score.
The z-score represents the number of standard deviations a data point is away from the mean. To find the z-score corresponding to the 80th percentile, we need to find the critical value or z-score that corresponds to an area of 0.80 under the standard normal curve.
Using a standard normal distribution table or a calculator, the z-score corresponding to an area of 0.80 is 0.84162084...
Next, we use the formula for the z-score:
[tex]\boxed{z = \dfrac{x - \mu}{\sigma}}[/tex]
where z is the z-score, x is the data point, μ is the mean, and σ is the standard deviation.
Substitute z = 0.84162084..., μ = 1600, σ = 411 into the z-score formula:
[tex]0.84162084... = \dfrac{x - 1600}{411}[/tex]
Solving for x:
[tex]x=1945.90616...[/tex]
Therefore, a family would have spent approximately $1,945.91 to be at the 80th percentile of spending on a summer vacation.
Answer:
$1,945.03
Step-by-step explanation:
To find the amount a family would have spent to be at the 80th percentile, we need to find the z-score that corresponds to the 80th percentile and then use that z-score to calculate the corresponding amount.
First, we find the z-score using the standard normal distribution table or a calculator:
z = InvNorm(0.8) ≈ 0.8416
Next, we use the formula for transforming a z-score to a raw score:
z = (x - μ) / σ
where x is the raw score, μ is the mean, and σ is the standard deviation.
Substituting the given values and solving for x, we get:
0.8416 = (x - 1600) / 411
x - 1600 = 0.8416 * 411
x - 1600 = 345.0256
x = 1945.0256
Therefore, a family would have spent about $1,945.03 to be at the 80th percentile.
During an influenza epidemic, we note that in a household of mother, father and two children, the probability that mother gets influenza is 10%. Furthermore, we see that the probability that father get influenza is also 10% while the probability that both mother and father get influenza is 2%. For the children, we assume a probability of 20% that each child will get influenza and a probability of 10% that both children get the disease at the same time. (a) Are the events that mother and father get influenza independent of each other? (b) What is the probability that at least one child will get influenza? (c) What is the conditional probability that the father has influenza given the the mother has influenza? 5 (d) What is the conditional probability that one child has influenza given that the other child does not have influenza?
Answer:
i could only work out (A)
Step-by-step explanation:
Given: P(MOTHER) = 0.10 P(FATHER) = 0.10 P(MOTHER AND FATHER)= 0.02 P(FIRST CHILD) = 0.20 P(SECOND CHILD) = 0.20 P(FIRST CHILD AND SECOND CHILD) = 0.10 So, we get: P(MOTHER) X P(FATHER) = 0.10X 0.10 = 0.01 Since P(MOTHER) X P(FATHER) = 0.01 P(MO
Given the following function, find f(- 5), f(0), and f(5).
f(x) = - 2x + 2
f(- 5) = ?
Answer: A statement, principle, or policy that creates the link between two variables is known as a function.
The function is given below.
f(x) = –3x – 5
The value of the function at x = –5, 0, 2 will be
f(–5) = –3(–5) – 5
f(–5) = 15 – 5
f(–5) = 10
f(0) = –3(0) – 5
f(0) = 0 – 5
f(0) = –5
f(2) = –3(2) – 5
f(2) = –6 – 5
f(2) = –11
The figure on the left is reflected using line to form the image on the
right. Use the information in the original figure to find the corresponding parts in
the image.
The required measures of the corresponding parts in the reflection of figure a = 3.2 and b = 46 degrees. Option C is correct.
As given in the question, the figure on the left is reflected using a line to form the image on the right.
Here,
Since the reflection of a figure never changes its dimension so,
in the figure,
b + 143 + 108 + 63 = 360
b = 46
And also in reflection, the measure of the site will not change so the measure of a = 3.2
Thus, the required measures of the corresponding parts in the reflection of figure a = 3.2 and b = 46 degrees. Option C is correct.
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The perimeter of a baseball diamond is 360 ft. If you take 12 laps around the diamond, what is the total distance you run.
Answer:6-lane, 200-meter rubberized track (8 laps = 1 mile)
Step-by-step explanation:
Find the measurement of the angle indicated for each trapezoid.
*
Answer: m∠B=53°
Step-by-step explanation:
A property that is inherent in a trapezoid of any kind: the sum of the angles adjoining a side is equal to 180°
Hence,
(32x-1)+(14x-3)=180
32x-1+14x-3=180
46x-4=180
46x-4+4=180+4
46x=184
Divide both parts of the equation by 46:
x=4
m∠B=14x-3
m∠B=14(4)-3
m∠B=56-3
m∠B=53°
The difference of 3 times a number and 5 is 13. Write and solve an equation to
find the number.
Answer:
n=8/3
Step-by-step explanation:
3n-5=13
3n=8
n=8/3
Given the lease terms below from a local car dealership, what is the total cash due at
signing if the dealership requires down payment, security deposit, first month's
payment and the acquisition fee at signing?
Length of lease = 24 months
MSRP of the car = $22, 750
Purchase value of the car after lease = $16, 900
Down payment = $1,800
Monthly payment = $425
Security deposit = $375
Acquisition fee = $300
The total cash due at signing if the dealership requires down payment, security deposit, first month's payment and the acquisition fee at signing is 2400 + 375 + 500 = 3275
When you buy a car, you don't make monthly payments at the beginning. Plus, you don't care how much the buyout costs when you close the lease, that's after you've had it for two years.
You must take care of the deposit, this is your good faith commitment to the rental car. In addition, you may have to pay a deposit based on your credit, and the acquisition fee is what you would pay a broker or dealer to get the car to you if you wanted it from somewhere else.
Therefore,
2400 + 375 + 500 = 3275
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Find the average rate of change of the function f(x)=√x from x₁ = 16 to x₂ = 81.
Answer:
1/13
Step-by-step explanation:
[tex]f(x_1)=4 \\ \\ f(x_2)=9 \\ \\ \frac{f(x_2)-f(x_1)}{x_2 - x_1}=\frac{1}{13}[/tex]
Joshua Vermier of Sacramento, California, received a raise after his first year on the job to $45,400 from his initial salary of $42,800. What was Joshua’s raise stated as a percentage? Inflation averaged 2.4 percent for the year. Round your answer to one decimal place.
1. Joshua's raise stated as a percentage is 6.1%.
2. When inflation is factored in, Joshua's raise reduces to 3.7%
What is a percentage?A percentage is the ratio of a variable when compared to the whole.
Percentages are expressed over 100, like ratios, probabilities, and proportions.
Data and Calculations:Initial salary on the job = $42,800
New salary after the raise = $45,400
The salary increase in dollars = $2,600 ($45,400 - $42,800)
The salary increase in percentage = 6.1% ($2,600/$42,800 x 100)
Inflation rate = 2.4%
The real increase in salary = 3.7% (6.1 - 2.4%).
Thus, Joshua’s raise stated as a percentage is 6.1%.
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A company reported total equity of $185,000 at the beginning of the year. The company reported $250,000 in revenues and $185,000 in expenses for the year. Liabilities at the end of the year totaled $112,000. What are the total assets of the company at the end of the year?
Based on the revenue, total equity, and the ending liabilities, the total assets at the end of the year is $362,000.
What is the total assets?First, find the ending equity:
= Opening equity + Revenue - expenses
= 185,000 + 250,000 - 185,000
= $250,000
The total assets by the accounting equation is:
Assets = Liabilities + Equity
= 112,000 + 250,000
= $362,000
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Find the length of the missing side. Leave your answer in the simplest radical form.
The length of the missing side is √69
How to find the length of the missing side?The triangle is a right triangle with the following parameters
Hypotenuse = 13
Leg = 10
Represent the missing side with x
By the Pythagoras theorem, we have
x = √Hypotenuse² - Leg²
This gives
x = √13² - 10²
Evaluate
x = √69
Hence, the length of the missing side is √69
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