Answer:
y=17
Step-by-step explanation:
opposite sides of parallelogram are congruent.
so , 12= y-5
or, y=17
Which expression is a factor of x² + 3x - 40?
A. (x-4)
B. (x - 5)
C. (x-8)
D. (x-10)
The result is not equal to zero, (x - 10) is not a factor of x² + 3x - 40.
None of the given expressions (A, B, C, D) are factors of x² + 3x - 40.
To determine which expression is a factor of the given quadratic expression, we need to check if substituting the value from each expression into the quadratic expression results in zero. Let's evaluate each option:
A. (x - 4)
Substituting x - 4 into x² + 3x - 40:
(x - 4)² + 3(x - 4) - 40 = x² - 8x + 16 + 3x - 12 - 40 = x² - 5x - 36
Since the result is not equal to zero, (x - 4) is not a factor of x² + 3x - 40.
B. (x - 5)
Substituting x - 5 into x² + 3x - 40:
(x - 5)² + 3(x - 5) - 40 = x² - 10x + 25 + 3x - 15 - 40 = x² - 7x - 30
Since the result is not equal to zero, (x - 5) is not a factor of x² + 3x - 40.
C. (x - 8)
Substituting x - 8 into x² + 3x - 40:
(x - 8)² + 3(x - 8) - 40 = x² - 16x + 64 + 3x - 24 - 40 = x² - 13x
Since the result is not equal to zero, (x - 8) is not a factor of x² + 3x - 40.
D. (x - 10)
Substituting x - 10 into x² + 3x - 40:
(x - 10)² + 3(x - 10) - 40 = x² - 20x + 100 + 3x - 30 - 40 = x² - 17x + 30
Since the result is not equal to zero, (x - 10) is not a factor of x² + 3x - 40.
None of the given expressions (A, B, C, D) are factors of x² + 3x - 40.
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Given the explicit formula for an arithmetic sequence find the first five terms and the term named in the
problem.
7) a=-11+7n
Find a
34
9) a = -7.1-2.1n
Find a
8) a = 65-100n
Find a
39
11
10) a= +-n
8 2
a23
The first five terms will be -4, 3, 10, 17 and 24.
The 34th term will be 227
How to calculate the APAn arithmetic sequence is one in which each phrase grows by adding or removing a certain constant, k. The difference between consecutive terms in an arithmetic series is always the same and is known as the common difference d.
Based on the information, it should be noted that the AP is given as An = - 11 + 7b
First term = -11 + 7(1) = -4
Second term = -11 + 7(2) = 3
Third term = -11 + 7(3) = 10
Fourth term = -11 + 7(4) = 17
Fifth term = 24
The 34 term will be:
= -11 + 7(34)
= 227
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Given the explicit formula for an arithmetic sequence find the first five terms and the term named in the problem. An=-11+7b. Find a34
Can someone help me with this
Answer:
C) 3^3*x^-3
Step-by-step explanation:
okay, so let's just find the numerator and denominator separately
So 27 is equal to 3^3. Numerator done.
Now for the denominator:
You need to know the laws of indices, specifically the one which says that square root of something is the same as to the power of 1/2, where the 1 signifies the power of the number inside the root and the 2 is for the square root. This means that the cube root would be power of 1/3.
So here cube root of x^9, would be equivalent to x^9/3, which can be simplified to x^3/1 ---> x^3.
This leaves us with 3^3/x^3. However, this isn't an option. We need to simplify the divide part of the expression. We can do that by using another law of indices which states that anything to the power of a negative number is the same as 1 over that number. (For example, x^-5 = 1/x^5) If there are numbers in front of the x, then that number would replace the 1, such as the following example: 9x^-3 = 9/x^3.
In this question, our 3^3/x^3 could be changed using this law to give, 3^3*x^-3
I hope this made sense and was helpful :))
how do you solve 1-(6-3)
Answer:
-2
Step-by-step explanation:
1-(6-3)
multiply the negative into the bracket so it becomes
= 1-6+3
= -2
Best answer gets brainliest and 5 stars
Answer:
A
Step-by-step explanation:
pgt states if the square of the length of the longest side of a triangle is equal to the sum of the squares of the other two sides, then the triangle is a right triangle.
Answer:
Does the answer help you?
Simplify (9-2a)-(4+3a)
Answer:
subtract the numbers\(9 - 4 =5 = -5a + 5\)
Step-by-step explanation:
( a ) = a
( 9 - 2a ) = 9 - 2a
= 9 - 2a - 4 -3a
- (a + b ) = -a -b
-( 4 + 3a ) = -4 - 3a
= - 2a - 3a + 9 - 4
- 2a - 3a = - 5a = -5a + 9 - 4
give me a thanks
!!!I NEED HELP ASAP!!!!
Which function is represented by the graph?
f(x) = −2|x| + 1
f(x) =-1/2 |x| + 1
f(x) = -2|x + 1|
f(x) = -1/2 |x + 1|
i posted the problem just in case you need it.
Answer:
It would be the first option.
f(x) = -2 |x| + 1
Does the following system of equations have :
Infinitely many solutions
or
No solution ?
2:+y = 2
y = -21 - 1
Answer:
Infinite many solutions
Step-by-step explanation:
Evaluate the expression for b = 5
3b + 10
Answer:
3b = 3 x 5
3 x 5 + 10 = 15 + 10 = 25
A boat has a speed of 15 mph in calm water. it takes the boat 3 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current in miles per hour? 3(15 – c) = 2(15 c) 2(15 – c) = 3(15 c) 15 – c = 15 c 15 – 3c = 15 2c
The equation that can be used to find the speed of the current, c, in miles per hour is 3(15 - c) = 2(15 + c). The boat's speed when going upstream can be given by⇒ the speed in calm water - the speed of the current. Similarly, the boat's speed when going downstream can be given by⇒ the speed in calm water + the speed of the current.
To explain this equation:
- The boat's speed in calm water is given as 15 mph.
- When traveling upstream (against the current), the boat takes 3 hours to travel a certain distance.
- When traveling downstream (with the current), the boat takes 2 hours to travel the same distance.
- The speed of the current affects the boat's overall speed, so we need to find the value of c.
Distance traveled by the boat upstream = speed x time = (15-c) x 3
Distance traveled by the boat downstream = speed x time = (15+c) x 2
We know that both the distances are same.
So ⇒ 3(15 - c) = 2(15 + c)
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Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2,
and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y
= 1,470 represents Sal's profits last month, where x is the number of sandwich lunch specials sold and y is the
number of wrap lunch specials sold.
4. Graph the function. On the graph, make sure to label the intercepts. You may graph your equation by hand
on a piece of paper and scan your work or you may use graphing technology.
I ONLY NEED THE LABELSSSS
A graph of the linear function y = -2x/3 + 490 in slope-intercept form is shown in the image attached below.
What is the slope-intercept form?In Mathematics and Geometry, the slope-intercept form of the equation of a straight line is given by this mathematical equation;
y = mx + b
Where:
m represent the slope or rate of change.x and y are the points.b represent the y-intercept or initial value.Next, we would rearrange and simplify the given given linear equation in slope-intercept form in order to enable us plot it on a graph:
2x + 3y = 1,470
3y = -2x + 1,470
y = -2x/3 + 1,470/3
y = -2x/3 + 490
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459 33. hollow plastic ball is projected into the air: There is significant air resistance opposing the ball motion, So the magnitude of the ball' $ acceleration is DQt equal (0 &. At time /, the ball is moving Up and to the right at an angle of 450 to the horizontal, as shown above. Which of the following best shows the magnitude a and the direction of the ball' $ acceleration at time t ? (B) a > g a < g 4 > & a < g
When a hollow plastic ball is projected into the air, there is air resistance opposing its motion. The magnitude of the ball's acceleration is not equal to zero. At time t, the ball is moving up and to the right at a 45-degree angle to the horizontal.
The acceleration of the ball can be determined by considering the forces acting on it. Since there is air resistance opposing the ball's motion, its acceleration is less than the acceleration due to gravity (g). Therefore, the statement "a < g" best represents the magnitude and direction of the ball's acceleration at time t. This means that the ball's acceleration is directed downward but is smaller than the acceleration due to gravity. The presence of air resistance affects the ball's motion and causes its acceleration to be less than the acceleration due to gravity.
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Harold filled his swimming pool over the weekend. The pool has a capacity of 540 gallons. Harold put in 180 gallons of water on Saturday. The garden hose that Harold used supplies 9 gallons of water per minute. How long did it take for Harold to fill the pool to capacity on Sunday? Define a variable for the unknown quantity. Write and solve an equation to answer the question.
Pool Capacity = 540 gallons
Saturday = 180 gallons
Hose water rate = 9 gallons per minute
540 = 180+9m
Where m is the number of minutes (independent variable)
Solve for m :
540-180 = 9m
360 = 9m
360/9= m
40 =m
It will take 40 minutes.
Sam has $40. He buys a book for $12.99 and a puzzle for $15.49.
Which equations can be used to find how much money Sam has left? And don’t understand.
Answer:
First Answer Yay
closure means that whenever you add or subtract two polynomials, you get a ____.
Answer:
Step-by-step explanation:
is this in college?
Use the graph to answer the question.
The scale factor that was used to create the image, given the graph, would be C. 1 / 4.
How to find the scale factor ?To find the scale factor that was used to create the image, we can take the measurement of the distance of AB . The graph shows that if each cell is 1 unit, then the distance of AB would be 8 units.
By the same logic, the distance of A'B' would be 2 units.
The scale factor is therefore:
= Distance of image created / Distance of corresponding side on original image
= 2 / 8
= 1 / 4
In conclusion, the scale factor is 1 / 4 .
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help please
25 + 2v = 47, v = ?
Answer:
11
Step-by-step explanation:
2v = 47-25
2v = 22
v = 11
Elisa and her friend are dividing a 34-ounce bag of pretzels. Elisa
shares her portion equally with her two sisters. Which fraction
represents the amount of pretzels, in pounds, each person receives?
A. 17/48 lb
B. 2 1/8 lb.
c. 11 1/3 lb.
D. 1/2 lb.
Amount of pretzel each person receives is 17/16 lb.
What are Fractions?Fractions are numbers which are of the form a/b where a and b are real numbers. This implies that a parts of a number b.
Here, a is called the numerator and b is called the denominator.
Total weight of the bag of pretzels = 34 ounce
Elisa shares this among her two sisters equally.
Share of pretzels each sister gets = 34 / 2 = 17 ounces
We need this amount in pounds.
We know that,
16 ounce = 1 lb.
17 ounces = 17/16 lb.
Hence the amount of pretzels each get is 17/16 lb.
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find x .....merry Christmas :)))
The value of x in the triangle is 70°
What is a scalene triangle?A scalene triangle is a plane figure that has 3 different length sides and 3 different angles. The sum of all the angles in a scalene triangle is equal to 180°
i.e
\(\mathbf{\hat x + \hat y + \hat z = 180 ^0}\)
Let's assume that angle y = 60° and angle z = 50°Then;
\(\mathbf{\hat x + 60^0 + 50^0 =180^0}\)
x + 110° =180°
x = 180° - 110°
x = 70°
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let's denote new intpair(5, 7) as [5 7]. you've got a list of intpairs: [3 7], [4 6], [3 4] you sort them using intpair.compareto. what is their sorted order?
*A* [2 9], [3 2], [5 7]
B [5 7], [3 2], [2 9]
C [3 2], [5 7], [2 9]
D [2 9], [5 7], [3 2]
The sorted order of the impairs [3 7], [4 6], [3 4] using impair. compare to would be:
[C] [3 2], [4 6], [3 7]
When comparing in pairs using impair. compare to, the first element taking priority over the second element. So, in the list [3 7], [4 6], [3 4], the impair [3 2] would come first because 3 is smaller than both 4 and 3, and the second element (2) is also smaller than the second element of the other in pairs. Then, the impair [4 6] would come next as it has the second smallest first element, and finally, the impair [3 7] would come last as it has the largest first element. Therefore, the sorted order is [3 2], [4 6], [3 7], denoted as option C.
To sort the given list of in pairs ([3 7], [4 6], [3 4]) using impair. compared, follow these steps:
1. Compare the first elements of the in pairs (3, 4, and 3). If there is a tie, move to step 2.
2. Compare the second elements in pairs with the same first elements (7 and 4).
3. Arrange the impairs in ascending order based on the comparison results.
The sorted order is [3 4], [3 7], [4 6]. However, this order is not present in the given options. Please check the question for any discrepancies or provide the correct in pairs to sort.
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The sorted order of the impairs [3 7], [4 6], [3 4] using impair. compare to would be:
[C] [3 2], [4 6], [3 7]
When comparing in pairs using impair. compare to, the first element taking priority over the second element. So, in the list [3 7], [4 6], [3 4], the impair [3 2] would come first because 3 is smaller than both 4 and 3, and the second element (2) is also smaller than the second element of the other in pairs. Then, the impair [4 6] would come next as it has the second smallest first element, and finally, the impair [3 7] would come last as it has the largest first element. Therefore, the sorted order is [3 2], [4 6], [3 7], denoted as option C.
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Juan purchased 16 lemons and used 5 on the first day of making lemonade. On the second day, he purchased 12 lemons and used 11. Juan wrote this expression to find how many lemons he should have left.
(16 – 5) + (12 – 11)
Answer:
Juan purchased 16 lemons and used 5 on the first day of making lemonade. On the second day, he purchased 12 lemons and used 11. Juan wrote this expression to find how many lemons he should have left.
Step-by-step explanation:
11+1=12
Plzzzzzz helpppppppppppp
No like for real I don’t understand:(
Answer: Yes, No
Step-by-step explanation:
Expand and simplify
(x + 1)(x + 2)(x + 3)
Explain why two variables must both be quantitative in order to find the correlation between them
If the variables are not quantitative we cannot do the arithmetic required in the formulas for r.
What is a variable?A variable in mathematics is a symbol and placeholder for a changing quantity or any mathematical object.A variable can specifically represent a number, a vector, a matrix, a function, a function's argument, a set, or an element of a set.Quantitative order:
Quantitative methods emphasize objective measurements and statistical, mathematical, or numerical analysis of data gathered through polls, questionnaires, and surveys, as well as by manipulating pre-existing statistical data using computational techniques. Ordinal-level measurement data can be quantitative or qualitative. They can be arranged in ranked order, but differences between entries are meaningless. Measurement data at the interval level are quantitative. They can be arranged in any order, and meaningful differences between data entries can be calculated. We can't do the arithmetic required in the r formulas if the variables aren't quantitative.Therefore, if the variables are not quantitative we cannot do the arithmetic required in the formulas for r.
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Graph the line with slope 3 passing through the point (1, 3).
Answer:
y = 3(x-1) + 3
This is because the 1 equals h in this equation and 3 equals k, which will give you the point (1,3)
Let f(x) be a polynomial with integer coefficients and p be a prime. Prove that the congruence f(x)≡0(modp 2
) has either p 2
solutions or it has at most p 2
−p+1 solutions in Z p 2
.
Combining both cases, we can conclude that the congruence f(x) ≡ 0 (mod \(p^2\)) has either \(p^2\)solutions or at most \(p^2\) - p + 1 solutions in Z/\(p^2\)Z.
To prove the given statement, let's assume that f(x) ≡ 0 (mod \(p^2\)) is the congruence equation with f(x) being a polynomial with integer coefficients and p being a prime.
We can use the fact that a polynomial of degree n has at most n distinct solutions in a field. In this case, Z/\(p^2\)Z is the field we are considering.
Now, if f(x) ≡ 0 (mod \(p^2\)) has a solution x = a, then by the Factor Theorem, we can write f(x) = (x - a)g(x), where g(x) is another polynomial with integer coefficients.
Since f(x) has integer coefficients, we can express g(x) as g(x) =\(c_0\)+ \(c_1x\) + \(c_2x^2\) + ... + \(c_mx^m\).
Now, substituting f(x) = (x - a)g(x) into the congruence equation, we get (x - a)g(x) ≡ 0 (mod \(p^2\)).
Expanding this equation, we have (x - a)(\(c_0 + c_1x + c_2x^2 + ... + c_mx^m\)) ≡ 0 (mod \(p^2\)).
From this equation, we can see that either (x - a) ≡ 0 (mod \(p^2\)) or (\(c_0 + c_1x + c_2x^2 + ... + c_mx^m\)) ≡ 0 (mod \(p^2\)).
Case 1: (x - a) ≡ 0 (mod \(p^2\))
In this case, we have a solution x ≡ a (mod \(p^2\)). Since p is a prime, there are exactly p^2 possible values for x ≡ a (mod \(p^2\)).
Case 2: (\(c_0 + c_1x + c_2x^2 + ... + c_mx^m\)) ≡ 0 (mod \(p^2\))
In this case, we have a polynomial of degree m, and according to the fact mentioned earlier, it can have at most m solutions in Z/\(p^2\)Z. Since m is the degree of g(x), it follows that m ≤ \(p^2\) - p.
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According to Gallup, a person who is fully engaged in the workplace is both emotionally and behaviorally connected to their job and company. Suppose that we calculate a 95% confidence interval for the difference in population proportion of Millennials who are fully engaged with their jobs and the population proportion of Gen X'ers who are fully engaged with their jobs and come up with the interval (-0.07, 0.01).
1. True or false: A correct interpretation of this confidence interval is "We are 95% confident that the population proportion of Millennials who are fully engaged in the workplace is between 0.07 below and 0.01 above the population proportion of Gen X'ers who are fully engaged in the workplace."
2. True or false: Because more of the confidence interval is negative, the population proportion of Millennials who are fully engaged in the workplace is less than the population proportion of Gen X'ers are who are fully engaged in the workplace.
3. True or false: If we test the hypotheses H0: p1 = p2 versus Ha: p1 ≠ p2 we will reject the null hypothesis.
The analysis of the statements with regards to the confidence interval, indicates;
1. True; A correct interpretation is "We are 95% confident that the population proportions of Millennials who are fully engaged in the workplace is between 0,07 below and 0.01 above of Gen X'ers who are fully engaged in the workplace".
What is a confidence interval?A confidence interval is a range of values that based on a specified confidence level, is more likely to contain a true value of a population parameter.
The confidence interval for the difference in proportions is the range or values set that is very likely to contain the true or actual difference between two population within a specified confidence level.
The formula for the confidence interval for the difference two population proportion can be presented as follows;
C. I. = (p₁ - p₂) ± z × √(p₁·(1 - p₁)/n₁ + p₂·(1 - p₂)/n₂)
The specified 95% confidence interval is; C. I. = (-0.07, 0.01)
The interpretation of the above confidence interval is that we are 95% sure that the proportion of Millennials who are fully engaged in the workplace is between -0.07, which is 0.07 less than the population proportion of Gen X'ers who are fulyt engaged and 0.01 above or 0.01 more than the population of Gen X'ers who are fully engaged in the workplace.
1. True;The first statement is therefore true
2. False; More information is required for the second statement, therefore, the second statement is false
3. False; More information is required for the third statement, therefore, the third statement is false
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a __________ is a vertical cylinder of rotating air that ranges from 3–10 km in diameter.
Answer: Mesocyclone
Step-by-step explanation:
If a number i multiplied by 8 intead of 5, the product increae by 39, then what i the number?
If a number is multiplied by 8 instead of 5, the product increases by 39
to find: the number
Let the number be x
Product of number is and 8 = 8x
Product of number is and 5 = 5x
A number is multiplied by 8 instead of 5, the product increases by 39
so, 8x-5x=39
3x=39
x=13
so,
Hence the number is 13
Multiplication is an arithmetic operation, where we find the product of two or more than two numbers.
The Number System contain any of the numerous sets of symbols and the rules for using them to denote numbers, which are used to state how many objects are there in a given set.
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At the same time a 70 feet building casts a 50 foot shadow, a nearby pillar casts a 10 foot shadow. Which proportion could you use to solve for the height of the pillar?
The height of the pillar is 14 feet.
How to find height ?We can use the ratio of the building's height to the length of its shadow to solve for the pillar's height and apply it to the pillar as well. This is because similar-shaped objects will produce shadows that are proportional to their size.
Let h represent the pillar's height, and let's establish a proportion:
height of building / length of building's shadow = height of pillar / length of pillar's shadow
Substituting the given values:
70 / 50 = h / 10
We can simplify this proportion by cross-multiplying:
70 x 10 = 50h
700 = 50h
And solving for h:
h = 700 / 50 = 14
Therefore, the height of the pillar is 14 feet.
In conclusion, we can solve for the pillar's height by establishing a ratio between the building's height and the length of its shadow and applying that ratio to the pillar.
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