Answer:
x=16
Step-by-step explanation:
1/2 ( x - 4 ) = 1/3 ( x + 2)
distribute both sides
1 /2 (x−4)= 1/ 3 (x+2)
( 1 /2 )(x) + ( 1/ 2 )(−4) =( 1 /3 ) (x)+( 1/3 )(2)(Distribute)
1 /2 x+−2= 1 /3 x+ 2 /3
1 /2 x+−2= 1 /3 x+ 2 /3
Step 2: Subtract 1/3x from both sides.
1/2x -2 -1/3 x
x= 1 /3 x + 2/3 − 1/ 3 x
1 /6 x−2= 2/ 3
Step 3: Add 2 to both sides.
1 /6 x −2+2= 2/ 3 +2
1 /6 x = 8 /3
Step 4: Multiply both sides by 6.
6*( 1/6 x) =6*( 8 /3 )
x=16
need help plz help me
Answer:
The last one t/5-6=-3
Step-by-step explanation:
All you have to do is plug in 15 to each equation, knowing this if you add 15 into this equation you would get 15/5-6=-3 and this is true because 15/5=3, 3-6=-3!
I hope this helps and have a great day!
Solve the following equations: e^−x^−e^x =3
We have to find the value of x for the given equation e^(−x^)−e^x =3. Here we can use a small trick to get the solution. We know that e^-x is the reciprocal of e^x. So we can replace e^-x with 1/e^x. Now we have the equation e^(−x^)−e^x =3 in the form e^x - 1/e^x = 3.
This is a quadratic equation in the form ax^2 + bx + c = 0. Here a = 1, b = 0, c = -3. We can solve this quadratic equation to get the value of x.
Given equation is e^(−x^)−e^x =3.We can replace e^-x with 1/e^x.Now the equation is e^(x) - 1/e^(x) = 3.
Let's take e^x as a variable and solve the equation:e^x - 1/e^x = 3Multiplying both sides by e^x, we get e^x * e^x - 1 = 3e^xNow e^(2x) - 3e^x - 1 = 0.
This is a quadratic equation in the form ax^2 + bx + c = 0. Here a = 1, b = -3, c = -1.
We can solve this quadratic equation using the quadratic formula which is given as:x = [-b ± sqrt(b^2-4ac)]/2a.
Substituting the values, we get:x = [-(-3) ± sqrt((-3)^2-4(1)(-1))]/2(1)x = [3 ± sqrt(13)]/2Hence the value of x is x = [3 ± sqrt(13)]/2.
We can solve the given equation e^(−x^)−e^x =3 using a small trick. We know that e^-x is the reciprocal of e^x. So we can replace e^-x with 1/e^x. Now we have the equation e^(−x^)−e^x =3 in the form e^x - 1/e^x = 3. This is a quadratic equation in the form ax^2 + bx + c = 0.
Here a = 1, b = 0, c = -3. We can solve this quadratic equation to get the value of x.We have, e^x - 1/e^x = 3Multiplying both sides by e^x, we get e^x * e^x - 1 = 3e^xNow e^(2x) - 3e^x - 1 = 0This is a quadratic equation in the form ax^2 + bx + c = 0. Here a = 1, b = -3, c = -1.
We can solve this quadratic equation using the quadratic formula which is given as:x = [-b ± sqrt(b^2-4ac)]/2aSubstituting the values, we get:
\(x = [-(-3) ± sqrt((-3)^2-4(1)(-1))]/2(1)x = [3 ± sqrt(13)]/2So the value of x is x = [3 ± sqrt(13)]/2.\)
Hence the solution of the equation e^(−x^)−e^x =3 is x = [3 ± sqrt(13)]/2.
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For each of the following functions, draw the function on x - and y-axis; identify whether the function has a maximizer or minimizer, and calculate what the maximizer (or minimizer), x
∗
, of the function. 2.1) f(x)=3x
2
−5x+8 2.2) f(x)=−2x
2
+4x−4 2.3) f(x)=x
2
+3x−1 2.4) f(x)=7x
2
+28x+20 2.5) f(x)=−6x
2
+36x+10
Each function and identify whether it has a maximizer or minimizer, we need to examine the shape of the graph and determine the vertex of the parabolic curve.
The vertex represents the point where the function reaches its highest or lowest value, depending on the concavity of the parabola. 2.1) f(x) = 3x^2 - 5x + 8: This function is a quadratic with a positive coefficient for the squared term. Therefore, it opens upward and has a minimum point. The maximizer is negative infinity, and the minimizer occurs at the x-coordinate of the vertex. To find the minimizer, we can use the formula x = -b / (2a), where a = 3 and b = -5.
Substituting the values, we get x = -(-5) / (2 * 3) = 5/6. 2.2) f(x) = -2x^2 + 4x - 4: Similar to the previous function, this is a quadratic with a negative coefficient for the squared term. It opens downward, indicating a maximum point. The maximizer occurs at the x-coordinate of the vertex. Using the same formula as before, we have x = -b / (2a), where a = -2 and b = 4. Substituting the values, we get x = -4 / (2 * -2) = 1.
2.3) f(x) = x^2 + 3x - 1:
Again, this is a quadratic function with a positive coefficient for the squared term, resulting in a minimum point. To find the minimizer, we can use the formula x = -b / (2a), where a = 1 and b = 3. Substituting the values, we get x = -3 / (2 * 1) = -3/2.
2.4) f(x) = 7x^2 + 28x + 20:
Similar to the previous cases, this quadratic function has a positive coefficient for the squared term, indicating a minimum point. Using the formula x = -b / (2a), where a = 7 and b = 28, we get x = -28 / (2 * 7) = -2 2.5) f(x) = -6x^2 + 36x + 10: Once again, this is a quadratic function with a negative coefficient for the squared term, resulting in a maximum point. Using the formula x = -b / (2a), where a = -6 and b = 36, we get x = -36 / (2 * -6) = 3.
2.1) The function f(x) = 3x^2 - 5x + 8 has a minimizer at x = 5/6.
2.2) The function f(x) = -2x^2 + 4x - 4 has a maximizer at x = 1.
2.3) The function f(x) = x^2 + 3x - 1 has a minimizer at x = -3/2.
2.4) The function f(x) = 7x^2 + 28x + 20 has a minimizer at x = -2.
2.5) The function f(x) = -6x^2 + 36x + 10 has a maximizer at x = 3.
These results indicate the x-coordinate of the vertex, which corresponds to the maximizer or minimizer of each function.
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-2x (x)-5y (3z) Simplify the expression.
Answer:
-2x^2-15yz
Step-by-step explanation:
if i did the math right i think this is the right answer
what action changes the actual number of decimal places excel stores instead of just changing what is displayed? decrease decimal setting increase decimal setting round function decimal function
The correct answer is option (C). The answer is round function.
Given that,
Instead of just altering what is presented, Excel changes the amount of decimal places it really keeps.
To find : Something alters the real number of decimal places?
Number is rounded using ROUND function to a given number of digits. You can use the following formula, for instance, to round the value 23.7825 in cell A1 to two decimal places: =ROUND(A1,2) (A1,2) is 23.78 is the output of the function
Therefore, option is the right response (C). Round function is the solution.
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question 2 organizations such as the u.s. centers for disease control (cdc) often use data collected from hospitals. what kind of data is the cdc using if it is collected by hospitals, then sold to the cdc for its own analysis?
The U.S centers for disease control (CDC) uses Secondary Data if it is buying data from hospitals for its own analysis.
Data can be divided into 2 categories based on the source of collection.
When the data is collected firsthand by the research person or organization through sampling or other means for their own research purpose, it is known as Primary data. This is because it directly pertains to the purpose of the said event.
When the organization, however, does not collect data on its own but rather it uses data/ research of other organizations, it is known as secondary data.
Here, in this case, we find CDC saves time and effort by directly buying and utilizing the data collected by the hospitals for their own purpose, they use secondary data.
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Which ordered pair is a solution to the system of linear equations?
2x + 3y= 6
-3x + 5y = 10
(0.2)
(2.0)
(3.2)
(2.3)
HELP
Answer:
Step 1: Substitute the value of x into the equation
x= 3-3/2y
-3x+5y=10
Step 2: Solve the equation
-3(3-3/2y)+5y=10
Step 3: Substitute the value of y into the equation
Y=2
Step 4: Solve the equation
X=3-3/2×2 = X=0
Answer: (0,2)
Plz answer them they are timed
the larger the sample, the more ________ you have when you generalize your sample findings to the population facts.
the larger the sample, the more confidence you have when you generalize your sample findings to the population facts.
The larger the sample size, the more confidence you can have when you generalize your sample findings to the population facts. This is because larger sample sizes provide more accurate representation of the population facts due to the increased number of data points collected. As a result, the more data points you have, the more reliable your findings are in terms of representing the population facts. The larger the sample size, the more confidence you can have in generalizing the findings to the population facts.
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PLEASE HELP ME ASAP PLEASE.
Answer:
See below
Step-by-step explanation:
g (h(6)) :
h (6) = 3 ( 6^2) + 2 = 110
then g (110) = sqrt (110)
h (g(5))
g(5) = sqrt 5
then h( sqrt5) = 3 ( sqrt5)^2 + 2 = 17
We get statistics of 2017-2018 Average Starting Teacher Salaries by State measured by NEA. Given that the salary of Colorado is 33483, the sample size is 4,900 and the standard deviation is 602.694. a. What is the margin of error for a 95% confidence interval in Colorado
x + 4/3 = 55 + x -44
what is x
Answer: no solution
Step-by-step explanation:
There is no value for x that makes the equation true
Answer:
the answer is -0.8
What is the chance of pulling a 4 and a club back to back from a deck of cards, if you do not replace the card?
The chance of pulling a 4 and a club is 0.0637
How to determine the chance of pulling a 4 and a clubFrom the question, we have the following parameters that can be used in our computation:
A standard deck of cards
In a standard deck of cards, we have
Cards = 52
Number of 4's = 13
Number of clubs = 13
Selecting 4 and c back to back from a deck of cards, if you do not replace the card, we have
P = 13/52 * 13/51
Evaluate
P = 0.0637
Hence, the probability is 0.0637
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Solve this to help me
Answer:
D
Step-by-step explanation:
Hope I helped
In the year of 2021, Lawrenceville had a gopher problem. The equation that represent this problem is f (x) = 25,000(1.95)".
What does the number in this equation represent for this situation?
25,000:
1.95:
Answer:
25000 is the amount of gophers there are at the beginning
1.95 is the amount they increase each year (95 percent).
Step-by-step explanation:
don't need one
Solve the following inequations.
1/2 x + 2 ≥ x - 1, where x ∈ N
\(\large\underline{\sf{Solution-}}\)
Given:
\(\sf\longmapsto \dfrac{1}{2}x+2 \geq x-1, x \in \mathbb{N}\)
Multiplying both sides by 2, we get:
\(\sf\longmapsto2\bigg( \dfrac{1}{2}x+2\bigg) \geq 2(x-1)\)
\(\sf\longmapsto x+4 \geq 2x-2\)
\(\sf\longmapsto x+4+-x\geq 2x-2-x\)
\(\sf\longmapsto 4\geq x-2\)
\(\sf\longmapsto 4+2\geq x-2+2\)
\(\sf\longmapsto 6\geq x\)
\(\sf\longmapsto x\leq 6, x\in\mathbb{N}\)
Therefore:
\(\sf\longmapsto x=\{1,2,3,4,5,6\}\ \ \red{Ans.}\)
Answer and explanation please
1. What is the vertex for the following quadratic function, y = 2x^2 - 4x + 5?
A). (1,3)
B). (3, 1)
C) (0,5)
D). (2,5)
Answer:
A
Step-by-step explanation:
Given a quadratic in standard form
y = ax² + bx + c ( a ≠ 0 )
Then the x- coordinate of the vertex is
x = - \(\frac{b}{2a}\)
y = 2x² - 4x + 5 ← is in standard form
with a = 2 and b = - 4 , then
\(x_{vertex}\) = - \(\frac{-4}{4}\) = 1
Substitute x = 1 into the equation for corresponding value of y
y = 2(1)² - 4(1) + 5 = 2 - 4 + 5 = 3
vertex = (1, 3 ) → A
Find a(mod n) in each of the following cases. 1) a = 43197; n = 333 2) a = -545608; n = 51 5. Prove that 5 divides n - n whenever n is a nonnegative integer. 6. How many permutations of the letters {a, b, c, d, e, f, g} contain neither the string bge nor the string eaf? 7. a) In how many numbers with seven distinct digits do only the digits 1-9 appear? b) How many of the numbers in (a)contain a 3 and a 6? 8. How many bit strings contain exactly eight 0s and 10 1s if every 0 must be immediately followed by a 1?
1) Calculation of 43197 mod 333:
By using long division or a calculator, divide 43197 by 333 to get the quotient and remainder:
43197 ÷ 333 = 129 R 210
Therefore,43197 mod 333 = 2102)
Calculation of -545608 mod 51:
By using long division or a calculator, divide 545608 by 51 to get the quotient and remainder:
545608 ÷ 51 = 10704 R 32
Since -545608 is negative, add 51 to the remainder:32 + 51 = 83
Therefore,-545608 mod 51 = 83
The proof of the statement "5 divides n - n whenever n is a nonnegative integer" is quite straightforward:
By the definition of subtraction,n - n = 0, for any value of n.
Since 0 is divisible by any integer, 5 divides n - n for any non-negative integer n.
The task is to count the number of permutations of the letters {a, b, c, d, e, f, g} that do not include either the string "bge" or the string "eaf".
We will begin by counting the number of permutations that include "bge" and the number of permutations that include "eaf".The number of permutations with "bge" is simply the number of ways to arrange four letters (a, c, d, f) and "bge" so that "bge" appears in that order:5! × 4 = 480 (since "bge" can occupy any of the four positions and the remaining letters can be arranged in 5! ways).
Similarly, the number of permutations with "eaf" is5! × 4 = 480
Therefore, the total number of permutations that include either "bge" or "eaf" is 480 + 480 = 960.Therefore, the number of permutations that do not include either "bge" or "eaf" is7! - 960 = 5040 - 960 = 4080
Part (a) of this problem asks us to count the number of seven-digit numbers that include only the digits 1 through 9.We can think of a seven-digit number as a permutation of the digits 1 through 9, since each digit can be used only once.The number of permutations of 9 digits taken 7 at a time is:9P7 = 9! / (9 - 7)! = 9! / 2! = 181440
Therefore, there are 181440 seven-digit numbers that use only the digits 1 through 9.
Part (b) of this problem asks us to count the number of seven-digit numbers that include a 3 and a 6.A seven-digit number that includes a 3 and a 6 can be thought of as a six-digit number that uses the digits 1, 2, 4, 5, 7, 8, and 9, along with a 3 and a 6.There are 6 choices for where to place the 3 and 5 choices for where to place the 6.
Therefore, the number of seven-digit numbers that include a 3 and a 6 is:6 × 5 × 6P5 = 6 × 5 × 5! = 3600
The problem asks us to count the number of bit strings that contain exactly eight 0s and 10 1s if every 0 must be immediately followed by a 1.Since there are 8 zeros and they must be immediately followed by 1s, the bit string can be thought of as consisting of 18 "slots" where the 1s and 0s can go:1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
Each of the 8 zeros must be placed in one of the 8 "0 slots" shown above.Since the zeros must be immediately followed by 1s, there are only 10 "1 slots" available for the 1s.Therefore, the number of bit strings that contain exactly eight 0s and 10 1s if every 0 must be immediately followed by a 1 is:8C8 × 10C8 = 1 × 45 = 45.
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5/2 , 2.45, 2 2/5 , 6√ Put the numbers in order from least to greatest.
154b
Step-by-step explanation:
two equal-size vectors at right angles to each other have a resultant that is
Two equal-size vectors at right angles to each other have a resultant that is equal to \(\sqrt{2}\) times the magnitude of each individual vector.
The magnitude of the resultant vector of two equal-size vectors at right angles to each other can be determined using the Pythagorean theorem.
Let's assume the magnitude of each vector is represented by "a".
According to the Pythagorean theorem, the magnitude of the resultant vector, denoted as "R", can be calculated as:
R =\(\sqrt{a^2 + a^2}\)
R = (\(\sqrt{2a^{2} )}\)
R = \(\sqrt{2}\) a
Therefore, the magnitude of the resultant vector is equal to \(\sqrt{2}\) times the magnitude of each individual vector.
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Consider these graphed number lines. 4 number lines going from negative 5 to positive 5. Graph A: closed circles are at negative 5 and positive 2. Everything to the left of negative 5 and to the right of positive 2 is shaded. Graph B: Points are at negative 5 and positive 2. Everything between the points is shaded. Graph C: Open circles are at negative 5 and positive 2. Everything to the left of negative 2 and to the right of positive 2 is shaded. Graph D: Points are at negative 5 and positive 2. Everything between the points is shaded. Which number line represents the solution for the inequality |2p + 3| Greater-than-or-equal-to 7? graph A graph B graph C graph D
The graph for the solution set of the absolute value inequality is given by graph A.
What is the absolute value function?
The absolute value function is given by:
It measures the distance of a point x to the origin, which is given to x = 0.
In this problem, the inequality is given by:
|2p + 3| ≥ 7
Which means that the distance of 2p + 3 to the origin is of at least 7 units, hence 2p + 3 can be:
Equal or less to -7.Equal or greater than 7.Hence:
2p + 3≤ -7
2p ≤ -10
p ≤ -5
2p + 3 ≥ 7
2p ≥ 4
p ≥ 2
The graph is given at the end of the answer, and represented by graph A.
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Answer:
Step-by-step explanation:
graph A
help i dont feel like doing the math
Answer:
A
Step-by-step explanation:
First, we should put this equation in slope-intercept form by isolating y.
Thus, we have:
\(2x-\frac{4}{3}y=4\\ -\frac{4}{3}y=4-2x\\ y=\frac{3}{2}x-3\)
The slope-intercept equation shows that the y-intercept is -3 and the slope is 3/2.
Only answer A meets these requirements.
On a given day, a chicken has a 20% chance of laying no eggs, a 40% chance of laying on an egg, and a 40% chance of laying two eggs. what is the expected number of eggs this chicken would lay in 30 days?.
By using the concepts of Probability, we got 36 eggs this chicken would lay in 30 days
We know very well that if any of chicken produces eggs ,it means that that days will be counted.
So on each days, there will be three possibility
1.No chicken produce eggs2.Chicken produces single egg3.Chicken produces two eggs.So, any of the incident may occurs, so we account every incidents.
So, let suppose number of eggs after 30 days is X;
=> X = [(30×0)×(Probability of producing zero egg)] + [30×1×(Probability of Producing single egg)] + [30×2×(Probability of producing two eggs)]
We are given Probability of Producing single egg=40/100
and Probability of Producing two eggs=40/100
Therefore,
=>X=[ 0+(\(\frac{40}{100}\)×30)+(\(\frac{40}{100}\)×2×30)]
=>X=[0+(1200/100)+(2400/100)]
=>X=0+12+24
=>X=36
So number of eggs after 30 days=X=36.
After solving the the above equation we get 36 eggs,
Hence, total number of eggs would lay by chicken in 30 days is 36.
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Social psychologists use the word ____ to refer to how people deal with traumas and return, post-trauma, to healthy, effective functioning. Group of answer choices
The term "resilience" encompasses the psychological processes and traits that enable individuals to deal with traumas and recover their healthy and effective functioning.
To understand resilience more deeply, let's consider a mathematical analogy.
Just as mathematical equations can be adjusted or modified to solve different problems, individuals need to adapt their coping mechanisms to match the specific demands of a trauma. Being adaptable allows people to assess the situation, identify necessary adjustments, and find effective strategies for recovery.
Resilience is not solely about returning to a pre-trauma state but also involves personal growth and transformation. In mathematics, this growth can be compared to solving a complex problem that requires expanding one's knowledge and skills.
It's important to note that resilience is not a fixed trait, but rather a dynamic process that can be developed and strengthened over time. Just as mathematical skills can be improved through practice and learning, individuals can cultivate resilience through various interventions, such as therapy, support groups, self-care practices, and building healthy relationships.
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What is 7 1/3 x 2/5?
Math
Answer:
Step-by-step explanation:
you would multiply the fractions
then you would add the hole number
Answer:
2 14/15
Step-by-step explanation:
Clare buys with a normal price of $24 but saves 6$ by using cupons. For what percentage off is this cupon?
Answer:
25% off.
Step-by-step explanation:
Here is a link that can help you in the future.
https://www.calculators.org/math/percentage.php
3. Solve. Check Your Solutions
z - 12 = 30
Answer:
z = 42
Step-by-step explanation:
z - 12 = 30
Add 12 to each side
z - 12+12 = 30+12
z = 42
Check
42 - 12 = 30
30 = 30
Answer:
\(z = 42\)
Step-by-step explanation:
If we want to solve this algebraic equation, we need to isolate z on one side.
\(z - 12 = 30\)
Add 12 to both sides:
\(z - 12+12 = 30+12\\\\z = 42\)
To check our work, let's substitute 42 in as \(z\).
\(42 - 12 = 30\)
42 minus 12 is indeed 30.
Hope this helped!
Move a number to each box to create an equation to solve 8/100+9/10 =
The solution of the given fraction can be gotten through filling the boxes with the following values respectively;
8/100 + 9/10 = 98/100
What is a fraction?A fraction is defined as the representation of a part of a whole value in the form of a numerator and denominator.
The given fraction;
8/100 + 9/10 = ?
Find the lowest common multiple of the denominator = 100.
= 8/100 + 9/10
= 8 + 90/100
= 98/100
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when an auditor uses monetary-unit sampling to examine the total value of invoices, each invoice group of answer choices has an equal probability of being selected. can be represented by no more than one monetary unit. has an unknown probability of being selected. has a probability proportional to its monetary value of being selected.
When an auditor uses monetary-unit sampling to examine the total value of invoices, each invoice has a probability proportional to its monetary value of being selected.
Monetary unit sampling (MUS) refers to a statistical sampling method utilized to determine if the account balances or monetary amounts in a population contain any misstatements in an account of transaction. Auditors use monetary unit sampling, which is also known as probability-proportional-to-size sampling or dollar-unit sampling, to establish the accuracy of financial accounts. With monetary unit sampling, each dollar in a transaction is a separate sampling unit. When an auditor uses monetary-unit sampling to examine the total value of invoices, each invoice has a probability proportional to its monetary value of being selected.
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