Performing subtraction operations on the given vectors gives;
Graph 1 → u - vGraph 2 → u - wGraph 3 → w - vGraph 4 → v - u Which method can be used to complete the pairs correctly?
u - v = <-2 - 3, -7 - (-4) > = <-5, -3>
Therefore;
Graph 1 → u - vu - w = <-2 - 5, -7 - 1> = <-7, -8>
u - w = <-7, -8> which corresponds with graph 2
Therefore;
Graph 2 → u - ww - v = <5 - 3, 1 - (-4)> = <2, 5>
w - v = <2, 5> which corresponds with graph 3
Therefore;
Graph 3 → w - vv - u = <3 - (-2), -4 - (-7)> = <5, 3>
v - u = <5, 3> which corresponds with graph 4
Therefore;
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Please help the question is in the picture
Answer: D: Parallel to the base
Step-by-step explanation:
Answer:
the answer should be D if i am wrong please tell me.
Step-by-step explanation:
A triangular window has area
24 square feet and height six feet.
What is its base?
The table below shows the height of a pyramid-shaped candle as it burns.
Please solve the table.
The average rate of change of candle height from time 45 minutes to time 109 minutes is -1 inch per 64 minutes.
What does average rate of change mean?The average rate of change is a measure of how quickly one quantity changes relative to another. It is calculated by dividing the difference between two values by the difference in time between those two values. It is a useful metric when trying to understand the speed at which a given quantity is changing over time.
For example, To calculate the average rate of change in the number of students enrolled in a particular school over the course of 5 years. In year 1, the school had 200 students enrolled and in year 5 it had 350 students enrolled. To calculate the average rate of change, one would divide the difference between the two values (150 students) by the difference in time between them (4 years):
Average rate of change = (350-200) / (5-1) = 150 / 4 = 37.5
This means that, on average, the school's enrollment increased by 37.5 students each year.
The table showing the height of a pyramid candle as it burns can be calculated by dividing the change in height (2 inches) by the change in time (64 minutes).
Change in height = 2 inches
Change in time = 64 minutes
Average rate of change = (2 inches) / (64 minutes) = -1 inch per 64 minutes
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A 250 kg motorcycle has an acceleration of 10m/s. What is the force acting on the motorcycle?
Use Venn diagram notations to describe the shading of
Answer:
A intersection B or A Π B
Step-by-step explanation:
The intersection of A and B is the set of all those elements which belong to both A and B.
In given Venn diagram describe the shading region is A intersection B or A ∩ B
What is Venn diagram?A Venn diagram is an illustration that uses circles to show the commonalities and differences between things or groups of things Venn diagrams, also called Set diagrams or Logic diagrams, are widely used in mathematics, statistics, logic, teaching, linguistics, computer science and business. Many people first encounter them in school as they study math or logic, since Venn diagrams became part of “new math” curricula in the 1960s. These may be simple diagrams involving two or three sets of a few elements, or they may become quite sophisticated, including 3D presentations, as they progress to six or seven sets and beyond. They are used to think through and depict how items relate to each within a particular “universe” or segment. Venn diagrams allow users to visualize data in clear, powerful ways, and therefore are commonly used in presentations and reports. They are closely related to Euler diagrams, which differ by omitting sets if no items exist in them. Venn diagrams show relationships even if a set is empty.
According to the question
The intersection of A and B is the set of all those elements which belong to both A and B.
Hence, the given Venn diagram describe the shading region is A intersection B or A ∩ B
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Which algebraic expression represents the situation "add seven to the product of a number and ten"?
You are the marketing manager for Coffee Junction. The revenue for the company is given by R(x)=− 32x 3+6x 2+18x+4 where R(x) is revenue in thousands of dollars and x is the amount spent each month on advertisement, in thousands of dollars. 0≤x≤25 a) At what level of advertising spending does diminishing returns start? Explain What this diminishing returns means for this company. b) How much revenue will the company earn at that level of advertising spending? c) What does 0≤x≤25 tell us with respect to this problem?
a) Diminishing returns start at x = 1, where the marginal revenue will be less than the marginal cost
b)At x = 1, the company will earn R(1) = -32 + 6 + 18 + 4 = -4,000 dollars.
c) 0 ≤ x ≤ 25 implies that the Coffee Junction company has the capacity to spend a maximum of 25,000 dollars per month on advertisements.
a) At what level of advertising spending does diminishing returns start?
Diminishing returns refers to a situation when the marginal return on investment decreases as more resources are devoted to it. For instance, in case of Coffee Junction, increasing the advertising expenditure may lead to higher revenue, but the marginal revenue (revenue generated by each additional dollar spent) will gradually decrease.
b) How much revenue will the company earn at that level of advertising spending?
At x = 1, the company will earn R(1) = -32 + 6 + 18 + 4 = -4,000 dollars.
c) What does 0≤x≤25 tell us with respect to this problem?
In this problem, 0 ≤ x ≤ 25 implies that the Coffee Junction company has the capacity to spend a maximum of 25,000 dollars per month on advertisements.
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What is the slope of the line?
the slope of the line on the graph is 3 .
What is slope of a line ?Slope is calculated by dividing the "vertical change" by the "horizontal change" between any two distinct points on a line. The ratio can alternatively be expressed as a quotient, which yields the same result for any two separate locations on the same line ("rise over run"). A negative "rise" indicates a falling line. A road surveyor may judge that the line is useful, or it may show up in a diagram of a road or a roof as a description or a design. The steepness, incline, or grade of a line can be measured using the slope's absolute value. A slope with a larger absolute value denotes a steeper line.
Calculationto find the slope of the graph we will take two points which lies on the same line i.e. they must be collinear .
the points i m choosing is (-2,0) and (-1,3)
now for finding the slope we will use the formula
m = (y2-y1)/(x2-x1)
m = (3 - 0 ) / (-1+2)
m = 3 / 1
m = 3
so the slope of the line on the graph is 3 .
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Follow the steps to find the product of and 0.55.
Estimate the product of and 0.55.
1/4-
Convert the decimal 0.55 to a fraction.
V55/100
What is the product of the two numbers?
X 110/150 or 11/15
110/300 or 11/30
77/103
1) Estimate value of the product of 2/3 and 0.55 is, 2/3.
2) The fraction part is, 55 / 100
3) The product of the two numbers is, 11/30
We have to given that,
Estimate the product of 2/3 and 0.55.
And, Convert the decimal 0.55 to a fraction.
And, The product of the two numbers.
Now,
Estimate the product of 2/3 and 0.55,
So, we can round 0.55 to the nearest whole number, which is 1.
Then, multiply 2/3 by 1 to get an estimate of the product.
so, The correct answer is 2/3.
Now, we can convert the decimal 0.55 to a fraction,
= 0.55
= 55/100
= 11/20
Thus, The correct answer is, 55/100.
And, the product of 2/3 and 0.55,
= 2/3 x 55/100
= 110/300
= 11/30.
Hence, The correct answer is, 110/300 or 11/30
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please help! What fractional part of one semicircle does the labeled angle represent? Express
your answer as a fraction in simplest terms. Then, express the labeled angle in radian
measure.
280°
Let's consider what the problem wants us to find:
fractional part covered by the labeled angleangle in radiansLet's find the fractional part:
⇒ the fractional part is equal:
\(\frac{degree-covered-by-angle}{total-angle} =\frac{280}{180} =\frac{2*2*7*10}{2*2*3*3*5} =\frac{7*10}{3*3*5} =\frac{70}{45}=\frac{14}{9}\)
Answer: The angle 280 degrees covers 14/9 of a semicircle.
Let's find the angle measure in radians:
⇒ we know that \(2\pi\) radians are equal to 360 degrees
⇒ to convert any degree to radians, you must multiply \(\frac{\pi }{180}\)
so \(280*\frac{\pi }{180} =\frac{28}{18}*\pi =\frac{28\pi }{18}=\frac{2*14*\pi }{2*9} =\frac{14\pi }{9}\)
Answer: The angle 280 degrees in radians is \(\frac{14\pi} {9}\) which in terms of \(\pi\) is
14/9
Hope that helps!
A true-false test contains 13 questions. In how many different ways can this test be completed. (Assume we don't care about our scores.
Answer:
Explanation:
There are two possible answers for a tue-false test:
True and False
It is given
Translate the following argument into symbolic form, and use Truth Tables to determine whether the argument is valid or invalid.
If the boss snaps at you and you make a mistake, then he’s irritable. He didn’t snap at you. So he’s not irritable.
The last column evaluates to "T" in all rows. Therefore, the argument is valid since the conclusion always follows from the premises.
Let's assign symbols to represent the statements in the argument:
P: The boss snaps at you.
Q: You make a mistake.
R: The boss is irritable.
The argument can be symbolically represented as follows:
[(P ∧ Q) → R] ∧ ¬P → ¬R
To determine the validity of the argument, we can construct a truth table:
P | Q | R | (P ∧ Q) → R | ¬P | ¬R | [(P ∧ Q) → R] ∧ ¬P → ¬R
---------------------------------------------------------
T | T | T | T | F | F | T |
T | T | F | F | F | T | T |
T | F | T | T | F | F | T |
T | F | F | F | F | T | T |
F | T | T | T | T | F | F |
F | T | F | T | T | T | T |
F | F | T | T | T | F | F |
F | F | F | T | T | T | T |
The last column represents the evaluation of the entire argument. If it is always true (T), the argument is valid; otherwise, it is invalid.
Looking at the truth table, we can see that the last column evaluates to "T" in all rows. Therefore, the argument is valid since the conclusion always follows from the premises.
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write a quadratic function h whose zeros are - 6 and -5 h (x) =
Answer:
h(x)= x^2+11x+30
Step-by-step explanation:
A quadratic function is in the form h(x) = ax^2 + bx + c.
Since the zeros are -6 and -5, take the opposite signs and add them to the variable x separately.
It should look like this: h(x)= (x+6)(x+5)
Since this is the factored form, we have to solve this equation further.
h(x)= (x+6)(x+5)
h(x)= x^2+6x+5x+30
h(x)= x^2+11x+30
Which table shows the reflection of f(x) across the y-axis?
answer 4 brainliest
The Correct graph is fourth one !
Answer:
The last one is correctStep-by-step explanation:
Comparison with the gradientQUESTION :
m = (-3--1)/(-5-6) = 2/11
LAST ONE :
m = (-3--1)/(5--6) = -2/11
WITH THE REFLECTION OF F(X) , NORMALLY THE X-INTERCEPTS OF THE REFLECTED VALUE REMAIN THE SAME BUT CHANGE SIGNS. THE Y-INTERCEPTS DON'T CHANGE INCLUDINGVTHE SIGNS.
HOPEFULLY THIS MAKES SENSE :)Woof chow dog food company believes that it has a market share of 25 percent. it surveys n100 dog owners and ask whether or not woof chow is their regular brand of dog food, and 23 people say yes. based upon this information, what is the critical value if the hypothesis is to be tested at the 0.05 level of significance?
On solving the provided question, we can say that Considering that the test statistic inside the lower tail the rejection zone, the null hypothesis should be rejected.
What is null hypothesis?A null hypothesis is a kind of statistical hypothesis that asserts that a specific set of observations has no statistical significance. Using sample data, hypotheses are tested to determine their viability. Sometimes known as "zero" and symbolized by H0. Researchers start off with the presumption that there is a link between the variables. In contrast, the null hypothesis claims that there is no such association. Although the null hypothesis may not appear noteworthy, it is a crucial component of research.
\(H0:p=0.25\) (null hypothesis)
\(H0:p \neq 0.25\) (alternative hypothesis)
Do not reject the null because the test statistic\((-1.2) is >\) \(the critical value (-1.7531)\)
Considering that the test statistic is inside the lower tail of the rejection zone, the null hypothesis should be rejected.
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FILL THE BLANK. The average time a molecule spends in its reservoir is known as ________.
The average time a molecule spends in its reservoir is known as the residence time.
Residence time is an important concept in environmental science, particularly in the study of water quality and pollution. It refers to the average amount of time that a substance, such as a molecule or a pollutant, spends in a particular environment before it is either removed or transformed. For example, in a river, the residence time of a pollutant would be the amount of time it takes for that pollutant to be either broken down by natural processes or transported downstream to another location. By understanding residence time, scientists can better predict how pollutants will move through the environment and where they are likely to accumulate.
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Find the value of x.
Answer:
x=7
Step-by-step explanation:
Since the two lines, the transversal intersects are parallel we know that the angles are same-side interior. This means they are supplementary or add up to 180. Therefore, to solve add the two expressions and set them equal to 180, then solve with properties of equality.
14x+7+10x+5=180
First, add like terms
24x+12=180
Then, subtract 12 from both sides
24x=168
Next, divide both sides by 24
x=7
. Jean can paint a room in 4 hours. It takes Sanjay 7 hours to paint the same room. How many hours will it take if they work together
Therefore, it will take Jean and Sanjay approximately 2.545 hours, or about 2 hours and 32.7 minutes, to paint the room together.
To determine how many hours it will take Jean and Sanjay to paint the room together, we can use the concept of work rates.
Jean's work rate is 1 room per 4 hours, which can be expressed as 1/4 of a room per hour. Similarly, Sanjay's work rate is 1 room per 7 hours, or 1/7 of a room per hour.
When they work together, their work rates will add up. Therefore, the combined work rate of Jean and Sanjay is:
1/4 + 1/7 = 7/28 + 4/28 = 11/28 of a room per hour.
To find the number of hours it will take them to complete the room together, we can set up the equation:
(11/28) * t = 1
Here, t represents the number of hours it will take them to complete the room.
To solve for t, we can multiply both sides of the equation by the reciprocal of (11/28), which is (28/11):
t = (28/11) * 1/ (11/28) = 28/11 ≈ 2.545
Therefore, it will take Jean and Sanjay approximately 2.545 hours, or about 2 hours and 32.7 minutes, to paint the room together.
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3 quarters x 5 over 7
Hey there!
3/4 • 5/7
= 3(5)/4(7)
3(5) = 15⮐ Solving for your NUMERATOR (TOP number)
4(7) = 28⮐ Solving for your DENOMINATOR (BOTTOM number)
= 15/28
Answer: 15/28
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
The function V(x) = x ^ 3 - 6x ^ 2 - 8x + 12 finds the volume of an object with a height of x What is the volume of a object with height of 5 feet? What is the volume of an object with a height 12 feet?
i will mark as brainliest
Answer:
-53; 780
Step-by-step explanation:
3. plug in your values
5^3 - 6 (5^2) - 8 (5) + 12 = -53
12^3 - 6 (12^2) - 8 (12) + 12 = 780
you simulate a lot of lognormal(5, 1) random variables, take their logs and then take the mean. what number is this closest to?
The mean of a set of log-normally distributed random variables is equal to the mean of their logs.
Therefore, if we simulate a lot of lognormal(5,1) random variables, take their logs and then take the mean, it will be closest to the mean of the logs, which is 5. This is because lognormal(5,1) tells us that the mean of the original variables is exp(5+1^2/2), which is equal to exp(5.5), or 148.413. Taking the log of this number returns 5.
To calculate this more precisely, let's assume we simulate n lognormal(5,1) random variables and denote them by x_1, x_2, ..., x_n. We take the logs of each variable, producing the values y_1, y_2, ..., y_n. The mean of the logs is then calculated as (y_1+y_2+...+y_n)/n. Since each y_i is equal to the log of one of the x_i's, which is equal to 5, the mean of the logs is 5. Therefore, if we simulate a lot of lognormal(5,1) random variables, take their logs and then take the mean, it will be closest to 5.
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a random sample of 150 people was taken. 98 of the people in the sample favored candidate a. we are interested in determining whether or not the proportion of the population in favor of candidate a is significantly more than 57%. [r] refer to exhibit 9-6a. at the 0.1 level of significance, what conclusion do you draw? group of answer choices
At the 0.1 level of significance, the conclusion we come up with is to reject the null hypothesis.
we are given that a random sample of 150 people was taken. 98 of the people in the sample favored the candidate, were it to determine whether or not the proportion of the population in favor of candidate a is significantly more than 57%.So we need to find the test statistic, which is 1.98 determined from the z score, here the rejection region is the number more than 1.28, and 1.98 is greater than 1.28, so it is better to simply reject the null hypothesis.
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Consider the quadratic function f(x) = x2 – 5x + 12. Which statements are true about the function and its graph? Select three options. The value of f(–10) = 82 The graph of the function is a parabola. The graph of the function opens down. The graph contains the point (20, –8). The graph contains the point (0, 0).
The true statement about the function is,
⇒ The graph of the function is a parabola.
What is Coordinates?A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.
Given that;
The quadratic function is,
⇒ f(x) = x² - 5x + 12
Now, We check all the options as;
For the value of f (-10), we can put x = - 10 in given equation, we get;
⇒ f(x) = x² - 5x + 12
⇒ f(-10) = (-10)² - 5×-10 + 12
⇒ f (-10) = 100 + 50 + 12
⇒ f (-10) = 162
Option 1 is wrong.
After draw the graph of quadratic equation, we get;
The quadratic function f(x) = x² - 5x + 12 represent a parabola.
Hence, Option 2 is true.
By graph it is clear that the quadratic function f(x) = x² - 5x + 12 open up and not contain the points (20, - 8) and (0, 0).
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A model of the Pythagorean Theorem is shown below.
If a = 6 and c = 10 , which of the following could NOT be used to find the value of b?
A. 102 = 62 + b2
B. 102 + 62 = b2,
C. 100 = 36 + b2,
D. 100−36=b2
Answer:
D can others can't..............
what is the angle of P?
how do i do this?
14ft/sec = ?inch/sec
Answer:
168 in/sec
Step-by-step explanation:
It helps if you forget the /sec for a second. You end up having to solve what is 14 feet in inches which seems a LOT less complicated:
1 ft = 12 in
14 ft
14 * 12 = 168
Multiply the amount of feet you have by 12 (12 inches in a foot) and you have your answer.
FUN FACT:
If you wanted to go from inches to feet, all you have to do is work backwards. Divide by 12 and you'll get your feet.
EX:
168 in/sec = ? ft/sec
168/ 12 = 14
Determine whether the distribution represents a probability distribution. X 3 6 0.3 0.4 P(X) Oa. Yes b. No 9 0.3 0.1
The distribution does not represent a probability distribution. The correct option is b.
A probability distribution should satisfy two main conditions: (1) the sum of the probabilities for all possible outcomes should be equal to 1, and (2) the probabilities for each outcome should be between 0 and 1 (inclusive).
In this distribution, the probabilities for the outcomes are 0.3, 0.4, 0.3, and 0.1 for the values of X as 3, 6, 9, and 0, respectively. However, the sum of these probabilities is 1.1, which violates the first condition of a probability distribution.
Therefore, this distribution does not meet the requirements of a probability distribution and is not a valid probability distribution. The correct answer is option b.
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PLEASE OMG PLEASE
I LITERALLY NEED HELP OMG
The figure below shows a quadrilateral ABCD with diagonal BD bisecting angle ADC
Which equation is true
A cell phone plan charges $45.75 per month, plus $9.55 in taxes, plus $0.35 per
minute for calls beyond the 500-min monthly limit. Write a piecewise defined
function to model the monthly cost C(x) as a function of the number of minutes used
x for the month.
Answer: We can write the piecewise defined function for the monthly cost C(x) as follows:
C(x) =
45.75 - 9.55, if x ≤ 500
45.75 - 9.55 + 0.35(x - 500), if x > 500
Explanation:
For the first 500 minutes, the monthly cost is a flat rate of $45.75 for the plan fee and $9.55 for taxes, so the total cost is simply the sum of these two amounts: C(x) = 45.75 + 9.55 = 55.30, for x ≤ 500.
For any additional minutes beyond the 500-min limit, there is an additional charge of $0.35 per minute, so the cost increases linearly with the number of extra minutes used. The expression (x - 500) represents the number of minutes beyond the limit, so we multiply this by the rate of $0.35 per minute and add this amount to the base cost of $55.30, giving the piecewise expression:
C(x) =
55.30, if x ≤ 500
55.30 + 0.35(x - 500), if x > 500
Therefore, the piecewise defined function for the monthly cost C(x) is:
C(x) =
45.75 - 9.55, if x ≤ 500
45.75 - 9.55 + 0.35(x - 500), if x > 500
Note: The two expressions are equivalent, but the second expression is simplified by combining the constants.
Step-by-step explanation:
f(x) = 9 - 4x^2 - 4x^4 - 7x^6 and g(x) = 12 - 5x - 3x^2 -5x^3 - 5x^4 - 3x^5. Find f(x) - g(x)
Adding And Subtracting Polynomials
The expression for f(x)-g(x) after adding and subtracting the polynomials is -3+5x-x²+5x³-4x⁴+3x⁵-7x⁶.
What is a polynomial?Polynomials are algebraic expressions that consist of variables and coefficients. Variables are also sometimes called indeterminates. We can perform arithmetic operations such as addition, subtraction, multiplication, and also positive integer exponents for polynomial expressions but not division by variable.
To find f(x)-g(x), we use the technique of adding and subtracting Polynomials.
Given:
f(x) = 9-4x²-4x⁴-7x⁶g(x) = 12-5x-3x²-5x³-3x⁵
To find f(x)-g(x), we substract each terms in g(x) from each terms in f(x) that are of the same degree.
f(x)-g(x) = (9-12)+[0-(-5x)]+[-4x²-(-3x²)]+[0-(-5x³)]+[-4x⁴-0]+[0-(-3x⁵)]+[-7x⁶-0]f(x)-g(x) = -3+5x-x²+5x³-4x⁴+3x⁵-7x⁶Therefore. the expression for f(x)-g(x) is -3+5x-x²+5x³-4x⁴+3x⁵-7x⁶.
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