Answer:
4
Step-by-step explanation:
if you do all the steps right you should get 4
I need this ASAP I know its an easy question but I have been in this class for hours now and have a headache.
Answer: y = -27
Solve for y by simplifying both sides of the equation, then isolating the variable. As a result we get y = -27.
Step-by-step explanation:
You want to first distribute:
-(y - 5) = -2(y + 11)
-y + 5 = -2(y + 11)
You want to then distribute again:
-y + 5 = -2(y + 11)
-y + 5 = -2y - 22
Subtract 5 from both sides of the equation:
-y + 5 - 5 = -2y - 22 - 5
Solve and simplify:
y = -27
Solution:
y = -27
Answer:
y=-27
Step-by-step explanation:
-(y-5)=-2(y+11)
-y+5=-2y-22
-y+2y=-22-5
y=-27
Guys, Please Help me Fast
I will help u so fast, first
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can u answer this
some fanicial and environmental damages that have been made by cars.
please help me
this is exam
teacher giving us 10 minutes to discuss about and I am in washroom of school writing this
For what value of x, the term 2/x will be defined?
Answer:
Step-by-step explanation:
value of x, the term 2/x will be defined for all x except : 0
In 2020 the population of New York City was about 9 x 10⁶. The population of Pittsburgh was about 3 x 10³. About how many times more people live in New York City than Pittsburgh?
As per the concept of difference, there are 8.9 x 10⁶ more population in New York City than the population of Pittsburgh.
Difference
Difference mean the result of one of the important mathematical operations, which is obtained by subtracting two numbers. It tells us by how much a number differs from the other.
Given,
In 2020 the population of New York City was about 9 x 10⁶. The population of Pittsburgh was about 3 x 10³.
Here we need to find how many times more people live in New York City than Pittsburgh.
Before calculating the difference, first we have to expand the given simplified notations like,
9 x 10⁶ = 9000000
Similarly, the value of 3 x 10³ = 3000
Now, the difference of the population in the cities is,
=> 9000000 - 3000
=> 8997000
Then it can be written it as a simplified notation as,
=> 8.9 x 10⁶
Therefore, there are 8.9 x 10⁶ more population in New York City than the population of Pittsburgh.
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a chain letter starts when a person sends a letter to 5 people. each person who sends the letter to 5 other people who have never received it or does not send it to anyone. suppose that 10,000 people send out the letter before the chain ends and that no one receives more than one letter. how many people receive the letter? how many people do not send it out?
A chain letter starts when a person sends a letter to 5 people. So, approximately 19,550 people receive the letter, and around 9,550 people do not send it out.
In a chain letter scenario where each person sends the letter to 5 other people, and assuming that no one receives more than one letter, we can determine the number of people who receive the letter and those who do not send it out.
The first person sends the letter to 5 people. Each of these 5 people then sends it to 5 new people, resulting in a total of 25 people. This process continues, and each subsequent level increases by a factor of 5. So, the number of people who receive the letter can be calculated as follows:
Level 1: 5 people
Level 2: 5 x 5 = 25 people
Level 3: 5 x 5 x 5 = 125 people
Level 4: 5 x 5 x 5 x 5 = 625 people ...
Level n: 5^n
people If the chain ends after 10,000 people send out the letter, we can find the value of 'n' by solving the equation 5^n = 10,000. Taking the logarithm of both sides, we find that n ≈ 6.9. So, the chain ends at the 6th level.
To determine the number of people who receive the letter, we sum the number of people at each level up to the 6th level: Total = 5 + 25 + 125 + 625 + 3,125 + 15,625 ≈ 19,550 people.
As for the number of people who do not send out the letter, it is the difference between the total number of people who received the letter and the number of people who sent it out:
Number of people who do not send out = 19,550 - 10,000 = 9,550 people. So, approximately 19,550 people receive the letter, and around 9,550 people do not send it out.
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What are the domain restrictions of the expression g^2−2g−24/g^3−4g^2−12g?
Select each correct answer.
Responses
g≠6
g ≠ -6
g≠−4
g≠0
g≠−2
g≠2
When working with rational functions, your main concern to not divide by 0. Dividing by 0 can't be done.
So, you need to look at the denominator of your fraction and figure out what values of g will make that denominator become 0.
Option #1 is to plug in each option from your list to see which ones make the denominator equal 0. If that g-value makes the denominator equal zero, then it has be excluded.
Option #2 is to set the denominator equal to 0 and solve that equation:
g^3 - 4g^2 - 12g = 0
To solve this, you could do it by factoring.
g^3 - 4g^2 - 12g = 0
g ( g^2 - 4g -12) = 0
g ( g - 6 ) ( g + 2) = 0
This splits into:
g = 0, g = 6, g = -2
So those are the three values of g that you cannot use.
g ≠ 0; g ≠ 6, g ≠ –2
What is the value of a if a is equal to a×a×a=a+a+a
Answer:
a = ±sqrt(3)
Step-by-step explanation:
a×a×a=a+a+a
Simplifying each side
a^3 = 3a
Divide each side by a
a^3 /a = 3a/a
a^2 = 3
Take the square root of each side
sqrt(a^2) = ±sqrt(3)
a = ±sqrt(3)
Answer:
nope its not equal
a×a×a=a³, but a+a+a=3a
so, a³≠3a
Step-by-step explanation:
i hope this helps....can i have brainliest
MERRY CHRISTMAS!!!......ENJOY UR HOLIDAY!!!
What is the value of the question in the photo- I will give brainless to the first person to answer or the most accurate/ make sense.
Answer:
I am unable to see the photo
Step-by-step explanation:
Can you tell me the question?
How do you write an equation of a line that passes through the point (5,-1) and is parallel to the line y=2x-4?
The equation of a line that passes through the point (5,-1) and is parallel to the line y=2x-4 will be y=2x-11.
What is a straight line?A straight line is a combination of endless points joined on both sides of the point.
The slope 'm' of any straight line is given by:
A linear equation has the form y = mx + b in the slope-intercept format. X and Y are the variables in the equation. The values m and b represent the line's slope (m) and the value of y when x is 0.
\(\rm m =\dfrac{y_2-y_1}{x_2-x_1}\)
It is given that,
y=2x-4
We have to write an equation of a line that passes through the point (5,-1) and is parallel to the line y=2x-4.
The slope of the given equation,
y=2x-4
m=2
The slope of the parallel lines is equal,
m=2
The equation of a line that passes through the point (5,-1) with slope 2 is,
y-y₁=m(x-x₁)
y-(-1)=2(x-5)
y+1=2(x-5)
y+1=2x-10
y=2x-11
Thus, the equation of a line that passes through the point (5,-1) and is parallel to the line y=2x-4 will be y=2x-11.
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Three diver went cuba diving in the ocean for a couple of hour. The table how how much oxygen they had left in their oxygen tank. Diver Oxygen (liter)
Alexi eventy one ninth
Dante 7. 5
Sofia even and five eighth
Place the diver in order from leat to greatet baed on the number of liter left in their oxygen tank. Dante, Sofia, Alexi
Dante, Alexi, Sofia
Sofia, Alexi, Dante
Alexi, Sofia, Dante
pleae omeone explain thi for me o I can retake thi tet on FLVS
The order of the divers, from least to greatest, based on the amount of oxygen left in their tanks is Dante, Sofia, and Alexi.
The three divers, Alexi, Dante, and Sofia, went scuba diving for a few hours and the table shows how much oxygen they had left in their oxygen tanks. In order to determine the order from least to greatest, based on the amount of oxygen left in their tanks, it is necessary to compare the values. Dante had 7.5 liters left in his tank, Sofia had even and five eighth liters left, and Alexi had seventy one ninth liters left. Therefore, the order from least to greatest is Dante, Sofia, and Alexi. The least amount of oxygen left in the tank was 7.5 liters, which belonged to Dante, and the greatest amount of oxygen left in the tank was seventy one ninth liters, which belonged to Alexi. The amount of oxygen left in Sofia's tank fell in between the two, at even and five eighth liters.
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will someone explain what i did wrong here?
The actual inverse function is:
\(f^{-1}(x) = x^2 + 3\)
And the domain is [0, ∞).
Where is the mistake?
Remember that for a given function f(x) with a domain D and a range R.
For the inverse function, f⁻¹(x) the domain is R and the range is D.
Here, for the given function the domain is x ≥ 3 and the range is [0, ∞).
Then for the inverse function, which is:
\(f^{-1}(x) = x^2 + 3\)
(to check this, you must have that):
\(f^{-1}(f(x)) = x\\\\f(f^{-1}(x)) = x\)
The domain will be [0, ∞) and the range x ≥ 3
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Fill in the missing numbers to complete the linear equation that gives the rules for this tablex: 4, 5, 6, 7y: 56, 70, 84, 98y = ?x + ?
the two points are
A(4,56) and B(5,70)
so, the linear equation is
\(y-70=\frac{70-56}{5-4}(x-5)\)\(\begin{gathered} y-70=\frac{14}{1}(x-5)_{} \\ y-70=14x-70 \end{gathered}\)\(y=14x\)thus, the equation is
y = 14x + 0
so we can put 14 in first place and 0 in second
What can you say about a sample mean or a sample proportion being about 2 ses away from the population mean or the true proportion? what can you not say?
When we have a normal model for the sampling distribution, we cannot say that a sample mean or sample proportion is approximately 2 standard errors (ses) away from the population mean or the true proportion.
Instead, we can say that 95% of the sample proportions fall within two standard errors of the population proportion. Similar to this, the percentage of sample proportions decreases as the standard error distance decreases and increases as the standard error distance increases.
Therefore, the standard error distance will be greater than 2 standard errors (ses) if 99% of the sample proportions are within a given standard error distance of the population proportion.
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Find two positive numbers whose difference is 12 and whose product is 693.
Let be "x" and "y" the two positive numbers mentioned in the exercise.
You need to remember the following definitions:
- A Difference is the result of a Subtraction.
- A Product is the result of a Multiplication.
In this case, you know that their Difference is 12 and their Product is 693. So you can set up this System of Equations:
\(\begin{cases}x-y=12 \\ xy=693\end{cases}\)You can solve the System of Equation using the Substitution Method:
1. You can solve for the variable "x" from the first equation:
\(x=12+y\)2. Substitute this new equation into the second original equation and simplify:
\(\begin{gathered} xy=693 \\ (12+y)y=693 \\ y^2+12y=693 \end{gathered}\)3. Now you have to solve for "y", in order to find its value:
- Rewrite the equation in this form:
\(ax^2+bx+c=0\)Since it is the variable "y":
\(ay^2+by+c=0\)Then:
\(y^2+12y-693=0\)4. Use the Quadratic Formula to find the values of "y". The formula would be:
\(y=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}\)In this case:
\(\begin{gathered} a=1 \\ b=12 \\ c=-693 \end{gathered}\)Then, substituting values and evaluating, you get:
\(\begin{gathered} y=\frac{-12\pm\sqrt[]{(12)^2-(4)(1)(-693)}}{(2)(1)} \\ \\ y_1=-33 \\ y_2=21 \end{gathered}\)5. Since the numbers mentioned in the exercise are both positive, you must choose only the positive values. Therefore:
\(y=21\)6. To find the value of "x", you have to substitute the value of "y" into the equation
\(x=12+y\)Then:
\(x=12+(21)\)7. Finally, you have to solve the Addition:
\(x=33\)The answer is:
\(33\text{ and }21\)
Increased by 130% is 69 ?
Answer:
89.7Step-by-step explanation:
Do you mean 130% of 69? If so then we multiply 69 by 1.3. The answer is 89.7. If you mean something else, please state your question more clearly and I'll be happy to answer it.
I'm always happy to help :)Answer:
n + n*1.30 = 69
The number is 30
Step-by-step explanation:
We have a number n
increased by 130%
n + n*130%
is 69
n + n*1.30 = 69
Combine like terms
2.30n = 69
Divide by 2.30
2.30n/2.3 = 69/2.3
n =30
Pleaseeeee helpppp !!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
40
Step-by-step explanation:
SF of KP to KN = 4
If LM = 32, then we would have to divide 32 by 4 in order to get the missing length of KL.
32 ÷ 4 = 8
Length of KL = 8
Length of LM = 32
Length of KM = 32 + 8 = 40
the table below shows the heights of several books. Jean stacks a dictionary on top of her novel. how high is the stack of the two books.tablenovel: 3/4dictionary:4 1/2A. between 4 1/2 and 5 inchesB between 5 1/2 and 6 inchesC. between 5 and 5 1/2 inchesFIRST TO ANSWER wILL BE MARKED BRAINLEST AND WILL GET 5 STARS
Given:
novel: 3/4
dictionary: 4 1/2
Let's first convert the two given height into similar fractions (with the sa
Help please I will give brainlyest 9th grade lidral arts
-5 + 12 is 7
-2 - 8 is -10
Which value would best fit in the missing cell to suggest there is no evidence of
an association between the variables?
digital watch analog watch
displays the date
54
27
no date display
18
А A
9
B
18
C 27
D 54
Answer:
Step-by-step explanation:
A would befit the missing cell
a 120cm long piece of wood is cut into 5
\(5 \frac{1}{4} \)
cm long pieces. How many such pieces will you get?
Simplify 3(2x+6)+4x-1
Answer: 10+17
Step-by-step explanation:
Distribute:
3(2+6)+4−1
6+18+4−1
Subtract the numbers:
6+18+4−1
6+17+4
Combine like terms:
6+17+4
10+17
solution:
10+17
A textile production facility produces curtains which are sold in home design stores in their area. Their gross sales in hundreds of dollars, S, is dependent on the number of curtains they produce, x, and can be modeled by the functionS(x)=−20+2.5x.Draw the graph of the gross sales function by plotting its S-intercept and another point.
Plot the points (0, -20) and (10, 5) on a graph, and draw a line connecting them to represent the gross sales function S(x) = -20 + 2.5x.
To draw the graph of the gross sales function S(x) = -20 + 2.5x, we need to plot two points: the S-intercept and another point.
First, let's find the S-intercept. The S-intercept is the value of S when x = 0. Substituting x = 0 into the function, we get:
S(0) = -20 + 2.5(0) = -20
So the S-intercept is -20, which means that when the production facility produces 0 curtains, they will not make any sales.
Now, let's find another point. We can choose any value of x and calculate the corresponding value of S. Let's choose x = 8 (you can choose any other value if you prefer). Substituting x = 8 into the function, we get:
S(8) = -20 + 2.5(8) = 0
So when the production facility produces 8 curtains, their gross sales will be $0. This means that the break-even point is at x = 8, where the revenue from selling the curtains covers the production costs.
To plot the graph, we can use these two points: the S-intercept (-20, 0) and the point (8, 0). The graph should look like this:
```
|
|
|
| *
| *
| *
|*_______
0 8 x-axis
S-axis
```
The x-axis represents the number of curtains produced, and the S-axis represents the gross sales in hundreds of dollars. The graph shows that the gross sales function is a linear function that increases as the number of curtains produced increases. The break-even point is at x = 8, and after that, the production facility starts making a profit.
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Which number is IRRATIONAL?
A)
V100
B)
V225
V300
Eliminate
D)
V400
Answer:
a
Step-by-step explanation:
just bc it is
find an obtuse angle, θ, such that 0 ≤ θ ≤ 2π and has the same sine as -275° (please explain)
The obtuse angle such that has the same sine as -275° is θ = 95°
How to find the angle θ?We want to find an obtuse angle (with a measure larger than 90°) in the range 0 ≤ θ ≤ 2π (or 0 < θ < 360°, after that we can change the units from degrees to radians) such that sin(θ) = sin(-275°)
First, remember that the sine function has a periodicity of 360°, then:
sin(-275°) = sin(-275° + 360°) = sin(85°)
Now we know that the sine function is symmetric around x = 90°
Then:
sin(90° + x) = sin(90° - x)
if we take x = 5° we will get:
sin(90° + 5°) = sin(90° - 5°)
sin(95°) = sin(85°) = sin(-275°)
Thus we can conclude that θ = 95°
That is the obtuse angle.
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Kayla started a book club at her school. The number of girls in the book club was one more than twice the number of boys. If there are 21 girls in the book club, how many boys are in the club?
Answer:
10
Step-by-step explanation:
(21-1)/2
A teacher wants to compare how two classes have performed on a test they have taken. should the teacher report the test mean or the test median? which measure might describe the data set better? why?
For given situation, the Median measure might describe the data set better.
We know that, the median is the middle number in a sorted, ascending or descending list of numbers.
Also, it can be more descriptive of that data set than the mean.
The median is used because:
It is the most informative measure of central tendency for skewed distributions or distributions with outliers.
For example, the median is often used as a measure of central tendency for income distributions, which are generally highly skewed.
The median is calculated by taking the “middle” value, the value for which half of the observations are larger and half are smaller.
When there is a possibility of extreme values, the median is generally the better measure to use.
Therefore, for given situation, the teacher should report median.
The Median measure might describe the data set better.
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When this polynomial is divided by (m + 1), the remainder is 0. What is the value of the polynomial's constant term?
-2m^3 + m^2 - m + (blank)
Answer:
The value of the polynomial's constant term is -4
Step-by-step explanation:
Given polynomial;
= -2m³ + m² - m + c
where;
c is the constant term
factor of the polynomial = m+1
then, f(m+1) = 0
m = -1
Substitute the value of m in the given polynomial and solve for the constant term "c";
-2m³ + m² - m + c = 0
-2(-1)³ + (-1)² - (-1) + c = 0
2 + 1 + 1 + c = 0
4 + c = 0
c = -4
Therefore, the value of the polynomial's constant term is -4
I need to find x, please
The spot rate for the British pound is £.7277 = $1 and the Canadian dollar is Can$1.1815 = $1. What is the £/Can$ cross-rate?
a. £.7699/Can$
b. £.6159/Can$
c. £.5685/Can$
d. £1.6236/Can$
e. £1.7138/Can$
The correct answer is option B) £.6159/Can$, is the £/Can$ cross-rate.
The given spot rate for the British pound and the Canadian dollar is used to calculate the £/Can$ cross-rate.
The steps are outlined below:
Step 1: Find the dollar value of the pound and the dollar value of the Canadian dollar:
£.7277 = $1Can$1.1815 = $1
Step 2: Divide the dollar value of the pound by the dollar value of the Canadian dollar to obtain the £/Can$ cross-rate:
£.7277/$1 ÷ Can$1.1815/$1= £.6159/Can$
Thus, the correct answer is option B) £.6159/Can$.
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Please help me. Geometry Honors is a pain.
Answer:
geese
Step-by-step explanation:
geese=super geese