1.Click and drag like terms onto each other to simplify fully.
2.and the last one is the "RESULT".
ANYONE PLEASE HELP ME,I REALLY NEED THE ANSWER RIGHT NOW I HOPE Y'ALL CAN HELP ME:(I'LL MARK YOU AS THE BRAINLIEST!
Answers
Answer:
Step-by-step explanation:
you have to click and drag the terms to each other so match +4x and -5x together, -3 and +2 and +2 together, and -y is left alone (hope it helps, never saw a question type like this on delta math)
Related Questions
suppose the true proportion of voters in the county who support a restaurant tax is 0.55. consider the sampling distribution for the proportion of supporters with sample size n
Answers
The mean of this distribution is 0.55
The standard error of this distribution is 0.0384
We have the following:
p=0.55
sample size, n=168
Mean of distribution:
Mean=true proportion of voters who support a restaurant
Mean=p=0.55
Hence, the mean of distribution is 0.55
Standard error of the distribution:
\(=\sqrt{\frac{p(1-p)}{n} }\)
\(=\sqrt{\frac{0.55(1-0.55)}{168} }\)
=0.0384
Hence, the standard error is 0.0384
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The questions was incomplete, the complete question is given below:
Suppose the true proportion of voters in the county who support a restaurant tax is 0.55. Consider the sampling distribution for the proportion of supporters with sample size n = 168.
What is the mean of this distribution?
What is the standard error of this distribution?
b2 - 12a when a = 1/4 and b = 8
Answers
Answer:
13
Step-by-step explanation:
b2-12a
2(8)-12(1/4)
16-12/4
16-3
13
Rasputins sells CDs for a particular artist. They have advertising costs of
$3500
and recording costs of
$9000
. Their cost for manufacturing, royalties, and distribution are
$5.50
per CD. They sell the CDs to Wow-Mart for
$7.20
each. Make Sure to write answers in full sentences when necessary. a) What are the fixed costs? b) What are the variable costs? c) What is the cost function for
x
CDs? d) What is the revenue function? e) How many CDs must the company sell to break even? (round to nearest whole number)
Answers
(a) Total fixed cost = $ 12500.
(b) Total variable cost for x CDs = $ 5.50 x
(c) The cost function for x CDs is, C(x) = 12500 + 5.50 x
(d) The revenue function for x CDs is, R(x) = 7.20 x
(e) Approximately 7353 CDs must the company sell to break even.
Rasputin sells CDs for a particular artist.
They have advertising costs of $ 3500 and recording costs of $ 9000.
They are the fixed costs.
(a) So total fixed cost = $ 3500 + $ 9000 = $ 12500
Their cost for manufacturing, royalties, and distribution are $ 5.50 per CD.
(b) So the variable cost for x CDs = $ 5.50 x
(c) Hence the cost function for x CDs is,
C(x) = Total Fixed Cost + Variable Cost
C(x) = 12500 + 5.50 x
(d) They sell the CDs to Wow-Mart for $ 7.20.
So the revenue function for x CDs is,
R(x) = 7.20 x
(e) At break even point,
C(x) = R(x)
12500 + 5.50 x = 7.20 x
1.70 x = 12500
x = 12500/1.70
x = 7353 (approximately)
Hence 7353 CDs must the company sell to break even.
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Please I need help with this
Answers
Answer:
1680.25
Step-by-step explanation:
-8x-11x what is the answer
Answers
Answer:
-19x
Step-by-step explanation:
so you start with -8 and when you subtract 11 from -8 its the same as adding them but because your subtracting you'll decrease which make the answer -19x. (hopefully this made sense)
Help would suffice
Answers
Answer: Yes
Step-by-step explanation:
x = 9 in (9, 8)
The inequality is x is less than or equal to 9
x = 9 so the point satisfies the inequality.
Yes
The ratio of a rectangle's length to the rectangle's width is 6:11. If
the perimeter of the rectangle is 510 units, then what is the length of
the rectangle?
Answers
Answer:
Step-by-step explanation:
90
By solving the equation 510 = 2(6x + 11x), we know that the length of the given rectangle is 90 units.
What are equations?
It primarily consists of a variable, sometimes with a numerical constant in addition.
Take the following illustration into consideration to quickly grasp this idea. 3x – 4 = 5. It is a simple equation of class 7.
A mathematical equation is a formula that uses the equals sign to represent the equality of two expressions.
So, we know that the ration is 6:11 and the perimeter is 510 units.
Then, form and solve the equation as follows:
510 = 2(6x + 11x)
510 = 12x + 22x
510 = 34x
x = 510/34
x = 15
Then, the length will be:
6x
6(15)
90 units
Therefore, by solving the equation 510 = 2(6x + 11x), we know that the length of the given rectangle is 90 units.
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An insurance company states that their claim office is able to process all death claims within 5 working days. Recently there have been several complaints that it took longer than 5 days to process a claim. Top management wants to make sure that the situation is status quo and sets up a statistical test with a null hypothesis that the average time for processing a claim is not more than 5 days, and an alternative hypothesis that the average time for processing a claim is greater than 5 days. After completing the statistical test it is concluded that the average exceeds 5 days. However, it is eventually learned that the mean process time does not exceed 5 days. What type of error occurred in the statistical test
Answers
The type of error that occurred in the statistical test is a Type I error (false positive).
In the given scenario, the statistical test resulted in the conclusion that the average time for processing a claim exceeds 5 days. However, it is later discovered that the mean process time does not actually exceed 5 days. Based on this information, the type of error that occurred in the statistical test is a Type I error.
Type I error, also known as a false positive, refers to rejecting the null hypothesis when it is actually true. In this case, the null hypothesis stated that the average time for processing a claim is not more than 5 days. However, due to some statistical variability or other factors, the test incorrectly led to the rejection of the null hypothesis, concluding that the average time does exceed 5 days.
In reality, when it was later discovered that the mean process time does not exceed 5 days, it indicates that the initial conclusion drawn from the statistical test was incorrect. This erroneous conclusion could have been caused by various factors such as sampling variability, measurement errors, or other random fluctuations in the data.
It is important to note that Type I errors can occur in hypothesis testing, and they represent the risk of incorrectly rejecting a true null hypothesis. In this case, the insurance company made a Type I error by concluding that the average processing time exceeds 5 days, even though it was not the case.
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A medical researcher was interested in examining what factors influenced patient’s scores in a fitness test. He ran a multiple linear regression, which included four predictors (‘hours spent taking part in physical activity per day’, ‘calories consumed per day’, ‘BMI’, and ‘hours spent sitting per day’). His model had a R2 of .665, an adjusted R2 of .661, an F-statistic of 112.56 (p 0.00). How would you interpret his findings?
Select one:
a. It is not a significant model.
b. It is a significant model where the four predictors account for 112% of the variance in the patient’s scores in the fitness test.
c. It is an significant model where the four predictors account for 0.661 of the variance in the patient’s scores in the fitness test.
d. It becomes difficult to assess the individual importance of predictors and it increases the standard errors of the b coefficients making them unreliable.
Answers
The researcher's multiple linear regression model is statistically significant, indicating that the predictors collectively have a significant influence on the patients' scores in the fitness test.
The model explains approximately 66.1% of the variance in the patients' scores. However, it is not appropriate to state that the predictors account for 112% of the variance in the fitness test scores.
The given information provides the following details about the multiple linear regression model:
R-squared (R2) value: The R2 value of 0.665 indicates that approximately 66.5% of the variance in the patients' scores in the fitness test can be explained by the predictors included in the model.
Adjusted R-squared (adjusted R2) value: The adjusted R2 value of 0.661 takes into account the number of predictors and sample size, providing a more conservative estimate of the model's goodness of fit. In this case, it suggests that approximately 66.1% of the variance in the patients' scores can be explained by the predictors.
F-statistic: The F-statistic of 112.56 is used to test the overall significance of the regression model. It indicates whether there is a significant relationship between the predictors and the dependent variable (fitness test scores). The associated p-value is stated as 0.00, which means the model is statistically significant.
Based on these findings, we can conclude that the researcher's multiple linear regression model is statistically significant, meaning that there is evidence to support the notion that the predictors collectively have a significant influence on the patients' scores in the fitness test.
The model explains approximately 66.1% of the variance in the fitness test scores, as indicated by the adjusted R2 value.
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On a coordinate plane, a red line, labeled g of x, begins on a negative slope, crosses the x-axis at (negative 2, 0), the y-axis at (0, negative 2), and crosses the x-axis on a positive slope at (2, 0). A straight blue line with a negative slope, labeled f of x, crosses the y-axis at (0, 2) and the x-axis at (2, 0).
Which statement is true regarding the functions on the graph?
Answers
Answer:
A
Step-by-step explanation:
i need to know the portion for jogging in degrees
Answers
Solution:
Given a table of data;
Where the total hours in 50 hours
The hours spent for jogging is 20 hours.
The sum of angles about a point or in a circle is, 360°
The portion for jogging in degrees is
\(=\frac{hours\text{ of jogging}}{total\text{ hours}}\times360\degree\)Substitute into the formula above
\(\begin{gathered} =\frac{20}{50}\times360\degree \\ =\frac{2}{5}\times360\degree \\ =144\degree \end{gathered}\)Hence, the portion for jogging is 144°
help asap if you can pls an thank u!!!!!!!
Answers
The value of angle S is 53°
What is exterior angle theorem?Exterior angle theorem states that the measure of an exterior angle of a triangle is equal to the sum of two remote interior angles.
With this theorem we can say that
7x+2 = 4x+13+19
collecting like terms
7x -4x = 13+19-2
3x = 30
divide both sides by 3
x = 30/3
x = 10
Since x = 10
angle S = 4x+13
angle S = 4(10) +13
= 40+13
= 53°
Therefore the measure of angle S is 53°
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WHat is the answer
f(8)=(8-2)^2
Answers
quadrilateral PQMN is similar to quadrilateral WXYZ. what is the measure of angle Z?
Answers
Answer:
100°
Step-by-step explanation:
Given
Quadrilateral PQMN and Quadrilateral WXYZ are similar so the corresponding angles are also similar.
so
< Z = <N = 100°
Hope it will help :)❤
Answer:
100 degrees
Step-by-step explanation:
Since quadrilateral PQMN is similar to quadrilateral WXYZ, the corresponding angles must match. That is, \(\angle P \cong \angle W\), \(\angle Q \cong \angle X\), \(\angle M \cong \angle Y\), and \(\angle N \cong \angle Z\). Specifically, \(m\angle Z = m\angle N = 100^\text{o}\).
what is the sum of the two numbers 2+9
Answers
Answer:
11
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
2+9=11
can i get brainliest lol?
The _____ is the price of an item that is being offered at a lower price than usual.
Answers
Answer:
sale price
Step-by-step explanation:
price of an item that is being offered at a lower price than usual
they plan to drive a total of 800 miles. if their average speed is 60mph, how many total hours would they spend driving?
Answers
They would spend approximately 13.33 hours driving if they plan to cover a total distance of 800 miles at an average speed of 60mph.
To answer this question, we need to use the formula: time = distance/speed. In this case, the distance is 800 miles and the average speed is 60mph. Therefore, the time spent driving can be calculated as:
Time = 800 miles / 60 mph
Simplifying this equation, we get:
Time = 13.33 hours
So, the total time that they would spend driving is 13.33 hours. It's important to note that this is the average time it would take them if they maintained a constant speed of 60mph throughout their journey. However, if they encountered traffic, roadworks, or took any breaks during their trip, the actual time spent driving would be longer than this.
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A={3,6,9,…21} and B={4,8,12..20} find A union B
Answers
Using Union function of set theory, we get the answer as
A∪B= {3,4,6,8,9,12,15,16,20,21}.
What is Union function?
The set containing all the elements in a collection of sets is referred to as the union (denoted by ) in set theory. This was one of the core elements that allows sets to be joined together and connected to one another. A union of zero A∪B sets is referred to as a nullary union, which is by definition equivalent to the empty set.The set containing items in A, B, or both A and B is the union of the two sets A and B.In set-builder notation, "displaystyle A" means "∪" and "B" means "x"A∪B equals x: x in A's text or x in B's.Using Union function of set theory, we get the answer as
A∪B= {3,4,6,8,9,12,15,16,20,21}.
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What is 1-6? WILL MARK YOU BRAINLIEST
Answers
Answer:
-5
Step-by-step explanation:
well you see 1-6 is -5 because im not sure i just know that answer
Answer:
you dont have any brainlys...
Step-by-step explanation:
Calculator
What is value of x?
Enter your answer in the box.
Answers
The value of x is 10
What is the solution to an equation?
In order to make the equation's equality true, the unknown variables must be given values as a solution. In other words, the definition of a solution is a value or set of values (one for each unknown) that, when used as a replacement for the unknowns, transforms the equation into equality.
The large triangle is divided into 2 similar triangles
The ratios of corresponding sides are equal
8/12 = x+4/2x+1
=> 8( 2x+1) = 12( x+4 )
=> 16x+8 = 12x+48
=> 16x-12x = 48-8
=> 4x = 40
=> x= 40/4 = 10
The value of x is 10
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A publisher needs to send many books to a local book retailer and will send the books in a combination of small and large boxes. Each small box can hold 20 books and each large box can hold 45 books. There were twice as many large boxes sent as small boxes, which altogether can hold 440 books. Write a system of equations that could be used to determine the number of small boxes sent and the number of large boxes sent. Define the variables that you use to write the system.
Answers
In linear equation, 20x + 45y = 440 , y = 2x Where x is the number of small boxes sent and y is the number of large boxes sent.
What in mathematics is a linear equation?
A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept.
Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.
Let be x the number of small boxes sent and y the number of large boxes sent.
Since each small box can hold 20 books (20x), each large box can hold 45 books (45y)and altogether can hold a total of 440 books, we can write the following equation to represent this
20x + 45y = 440
According to the information provided in the exercise, there were 4 times as many large boxes sent as small boxes. This can be represented with this equation
y = 2x
Therefore, the system of equation that be used to determine the number of small boxes sent and the number of large boxes sent, is
20x + 45y = 440
y = 2x
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if your claim is in the null hypothesis and you reject the null hypothesis, then your conclusion would be:
Answers
Option A is the correct answer.
firstly we need to understand what is null hypothesis.
Null hypothesis means the hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.
If the claim is null hypothesis and we fail to reject the null hypothesis then that means that there is not sufficient evidence to warrant rejection of the original claim.
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The above question is incomplete, the complete question is given below:
If your claim is in the null hypothesis and you fail to reject the null hypothesis, then your conclusion would be:
A)There is not sufficient evidence to warrant rejection of the original claim
B)The sample data support the original claim
C)There is not sufficient sample evidence to support the original claim
D)There is sufficient evidence to warrant rejection of the original cl
And the answer is option A.
please help me on this
Answers
Answer:
I got 5/16 as my answer
Step-by-step explanation:
I used a calculator to solve the equation :/
help me
Which statement is true about the fraction 5/75 ? Check all that apply.
Multiplying the numerator and the denominator by 12 will give the fraction a denominator of 1,000 so it can be easily converted to a decimal.
To determine its decimal equivalent, 75 can be divided by 5.
The fraction can be reduced before converting it into a decimal.
The decimal equivalent is a terminating decimal.
The decimal equivalent is a repeating decimal.
Answers
Answer:
TRUE; The fraction can be reduced before converting it into a decimal.
TRUE; The decimal equivalent is a repeating decimal.
Step-by-step explanation:
FALSE; Multiplying the numerator and the denominator by 12 will give the fraction a denominator of 1,000 so it can be easily converted to a decimal. (75 x 12 = 900 and not 1,000)
FALSE; To determine its decimal equivalent, 75 can be divided by 5. (75 divided by 5 = 15)
TRUE; The fraction can be reduced before converting it into a decimal (5 divided by 5 = 1 & 75 divided by 5 = 15 so 5/75 = 1/15)
FALSE; The decimal equivalent is a terminating decimal. (5/75 = 0.06666666)
TRUE; The decimal equivalent is a repeating decimal. (5/75 = 0.0666666666)
Can somebody help me please
Answers
The area of figure is 272.52 square units.
The given figure consist:
A parallelogram of,
length = 12
width = 18
Since we know that,
Area of parallelogram = length x width
= 12 x 18
= 216 square units
And it consist of a semicircle of,
radius = 12/2
= 6
Since we know that,
Area of semicircle is = πr²/2
= 3.14 x 6 x 6/2
= 56.52 square units
Thus,
The area of figure is sum of both areas,
⇒ 216 + 56.52
Hence, area is
⇒ 272.52 square units
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Write the conditional statement that the venn diagram illustrates.
Ex bisects
Pls help ASAP due soon
Answers
Answer:
if it is a square, then it is a quadrilateral
Step-by-step explanation:
You are making a round flower garden in your yard. The circumference of the garden will be 60 inches. What is the diameter? Use 3.14 to approximate pi. Round to the nearest tenth.
Answers
The diameter of the circular garden round to the nearest tenth will be 19.1 inches.
What is the diameter of a circle?In a circle, an infinite number of diameters can be drawn. A diameter is a straight line passing through the center and joins two points of the circumference of a circle. The length of a diameter is twice the length of the radius.
The circumference of a circle is given by C = πd, where d is the diameter of the circle and π can be taken as 3.14.
Substitute C = 60 and π = 3.14 into the above formula and find d.
60 = 3.14×d
d = 60/3.14
≈ 19.108
≈ 19.1
Therefore, the obtained answer is 19.1 inches.
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Half a number gives fifty in equation form
Answers
Hi there!
»»————- ★ ————-««
I believe your answer is:
\(\frac{x}{2} =50\\\\x = 100\)
»»————- ★ ————-««
Here’s why:
⸻⸻⸻⸻
\(\boxed{\text{Setting up an Equation...}}}\\\\\text{Half a number...}} \rightarrow\frac{x}{2} \\\\\text{...gives 50.} \rightarrow = 50\\\\\text{Half a number gives 50 should be: } \frac{x}{2} = 50\)
⸻⸻⸻⸻
\(\boxed{\text{Solving for 'x'...}}\\\\\frac{x}{2} = 50\\-------------\\\\\rightarrow( \frac{x}{2})2=50*2\\\\\rightarrow \boxed{x = 100}}\)
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
Answer:
\(take \: the \: number = x \\ then \: x \div 2 = 50 \\ x = 50 \times 2 = 100 \\ thank \: you\)
Factorize : 3x2 – 10xy + 8y2
Answers
\(3x^2-10xy + 8y^2=\\\\=3x^2-6xy-4xy + 8y^2=\\\\=3x(x-2y)-4y(x-2y)=\\\\=(x-2y)(3x-4y)\)
help lol I'm so unsmart
Answers
Answer:
0.5
Step-by-step explanation:
5/3 divided by 10/3=5/3*3/10
=1/2=0.5