Answer: $139.23
Step-by-step explanation: Take 50% of original dress price and add price of shoes. Subtract 10% of that.
State the domain and range of the following function using set notation. G(x)= -5x2 write the domain of the function set
The domain of the function is [tex]\mathbb{R}[/tex] or in set notation [tex](-\infty, \infty)[/tex].
The range of the function is [tex][0, -\infty)[/tex].
Hope this helps.
Evaluate the function for an input of 0.
Answer: 4.
Step-by-step explanation:
As you can see from the table in you input 0 into the function your output will be 4.
PLEASE ANSWER ASAP I WILL GIVE BRAINLIEST Compare the slopes of the linear functions f(x) and g(x) and choose the answer that best describes them. x g(x) 0 2 5 4 10 6 The slope of f(x) is greater than the slope of g(x). The slope of f(x) is less than the slope of g(x). The slope of f(x) is equal to the slope of g(x). The slope of g(x) is undefined.
Answer:
slope of F(X) = to the slope of G(X)
Step-by-step explanation:
your answer should be: letter C
No lies, I just did the exam and I've got it right, gook luck, guys.
please let me know if it worked, and also please don't forget to make brainly, give a rate, and add the heart ;) I will do the same on you.
The slope of a line f(x) is greater than the slope of a line g(x). Therefore, option A is the correct answer.
The coordinate points on equation of line g(x) are (0, 2), (5, 4) and (10, 6) and f(x) are (3, 1) and (0, -1).
What is slope of equation of a line?The slope or gradient of a line is a number that describes both the direction and the steepness of the line. The slope can be determined using the formula, slope = (y2-y1)/(x2-x1).
Now, slope of a line g(x) is (4-2)/(5-0)
=2/5
Slope of a line f(x) is (-1-1)/(0-3)
=2/3
The slope of a line f(x) is greater than the slope of a line g(x). Therefore, option A is the correct answer.
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At midnight,the temperature is at 34 degress Fahrenheit.The temperature decreases 3 degrees each hour until 2:00 am. The temperature then increases 2 degrees each hour until 7:00 am. What is the temperature at 7:00 am
A class collects $50 to buy flowers for a classmate who is in the hospital. Roses cost $3 each, and carnations cost $2 each. No other flowers are
to be used. How many different bouquets could be purchased for exactly $50?
Answer:
8
Step-by-step explanation:
You can set up an equation 50=2x+3y where x is the number of carnations and y is the number of roses. Then, you can express x as x=25-3/2y. As x must be positive, you can write 25-3/2y>0, 25>3/2 y. So, y can be 2,4,6,8,10,12,14,16 and the corresponding x's giving u 8 combinations.Question 9 options: Solve for the value of X. X2 = 36
Answer:
The answer would be x = 6 , − 6
Step-by-step explanation:
x 2 = 36
Take the square root of both sides of the equation to eliminate the exponent on the left side.
x = ± √ 36
The complete solution is the result of both the positive and negative portions of the solution.
Which give you the answer of x = 6 , − 6
PLEASE HELP The sample of six measurements shown below was randomly selected from a normally distributed population. Complete parts a through c.
Answer:
The question is not complete.
I believe this is the correct complete question:
The following sample of six measurements was randomly selected from a normally distributed population: 1, 3, -1, 5, 1, 2.
a. Test the null hypothesis that the mean of the population is 3 against the alternative hypothesis,
μ<3 Use α=.05
b. Test the null hypothesis that the mean of the population is 3 against the alternative hypothesis,
μ≠3 Use α=.05
c. Find the observed significance level for each test.
Step-by-step explanation:
We will first find the standard deviation (S.D) of the six measurements.
To find the S.D, we calculate the mean and variance
Mean = ∈n/n where ∈n = sum of set of numbers n
Mean = [1+3+(-1)+5+1+2] / 6 where n = 6
Mean = 11/6 = 1.8
Variance = Sum of squared deviation from mean / n-1
Variance = [(1-1.8)² + (3-1.8)² + (-1-1.8)² + (5-1.8)² + (1-1.8)² + (2-1.8)²] / 6-1
Variance = [0.64 + 1.44 + 7.84 + 10.24 + 0.64 + 0.04] / 5 = 20.84/5 = 4.168
Standard Deviation S.D = √Variance = √4.168 = 2.041
(a) [tex]H_{o}[/tex] : μ=3, [tex]H_{a}[/tex] : μ<3
Using α=0.05
test stat = {mean - μ[tex]_{o}[/tex]] / S.D /[tex]\sqrt{n}[/tex] = [1.8 - 3] / [2.041/ √6
test stat = -1.2 / 0.833 = -1.44
Critical Value from Student T distribution is t[tex]_{a}[/tex] = 2.015
Therefore, the rejection value contains values < -2.015
-1.400 > -2.015. It Fails to reject [tex]H_{o}[/tex]
(b) [tex]H_{o}[/tex] : μ = 3, [tex]H_{a}[/tex] : μ ≠ 3
Using α=0.05
test stat = {mean - μ[tex]_{o}[/tex]] / S.D /[tex]\sqrt{n}[/tex] = [1.8 - 3] / [2.041/ √6
test stat = -1.2 / 0.833 = -1.44
Critical Value from Student T distribution is t[tex]_{a}[/tex] = 2.571
Therefore, the rejection value contains values < -2.571 and larger value to 2.571
2.571 > -1.400 > -2.571. It Fails to reject [tex]H_{o}[/tex]
(c) Significance Value of (a) is P-value > 0.100
Significance Value of (b) is P-value > (2 x 0.100 = 0.200)
Can someone tell me the answers and show how you did it step by step with the parentheses and everything?
Step-by-step explanation:
Following B. O. D. M. A. S rule :
= { [ 8 / 2] ^2 - 6} * (-2)
= { 4 ^ 2 - 6} * - 2
= 10 * - 2
= - 20
Answer:
Solution : - 20
Step-by-step explanation:
We have the following expression to simplify,
[tex]\left\{\left[\frac{\left(3+5\right)}{2}\right]^2-\left(3\cdot 2\right)\right\}\cdot \left(-2\right)[/tex]
Let's start by simplifying simple expressions, such as 3 + 5 = 8 and 3 * 2 = 6. Substituting we receive,
[tex]\left\{\left[\frac{\left(8\right)}{2}\right]^2-\left(6\right)\right\}\cdot \left(-2\right)[/tex]
8 / 2 = 4, and 4² = 16 -
[tex]\left\{16-\left(6\right)\right\}\cdot \left(-2\right)[/tex]
And of course 16 - 6 = 10, simplifying the expression to " - 2 [tex]*[/tex] 10 " leaving us with a solution of - 20.
The flow rate in a device used for air quality measurement depends on the pressure drop x (inches of water) across the device's filter. Suppose that for x values between 5 and 20, these two variables are related according to the simple linear regression model with true regression line y = -0.17 + 0.095x.
A) What is the true average flow rate for a pressure drop of 10 in. and drop of 15 in.?
B) What is the true average change in flow rate associated with a 1 inch increase in pressure drop?
C) What is the average change in flow rate when pressure drop decreases by 5 in.?
Answer:
A. 0.78 and 1.255.
B. 0.095
C. -0.475
Step-by-step explanation:
The given regression line is
y=-0.17+0.095x
A.
The true average flow rate for a pressure drop of 10 inch can be computed by putting x=10 in above equation.
y=-0.17+0.095*10
y=-0.17+0.95
y=0.78
The true average flow rate for a pressure drop of 10 inch is 0.78.
The true average flow rate for a pressure drop of 15 inch can be computed by putting x=15 in above equation.
y=-0.17+0.095*15
y=-0.17+1.425
y=1.255
The true average flow rate for a pressure drop of 15 inch is 1.255.
B.
The slope represents average change in y due to unit change in x.
So, the true average change in flow rate associated with a 1 inch increase in pressure drop is 0.095(1)= 0.095.
C.
When pressure drops decreases by 5 in. then the average change in flow rate is 0.095(-5)=-0.475.
The flow rate in the device is an illustration of average rates.
The true average flow rates when pressure drops 10 and 15 in are 0.78 and 1.255 respectivelyThe true average flow rates associated to a 1 in pressure increment is 0.095A decrement of -5 in is out of the domain of the functionThe function is given as:
[tex]\mathbf{y = -0.17 + 0.095x}[/tex]
(a) The true average flow rate when pressure drops 10 and 15 in
When x = 10, we have:
[tex]\mathbf{y = -0.17 + 0.095 \times 10}[/tex]
[tex]\mathbf{y = 0.78}[/tex]
When x = 15, we have:
[tex]\mathbf{y = -0.17 + 0.095 \times 15}[/tex]
[tex]\mathbf{y = 1.255}[/tex]
Hence, the true average flow rates when pressure drops 10 and 15 in are 0.78 and 1.255 respectively
(b) The true average flow rate when pressure increases by 1 in
This simply represents the slope of the function.
The function is given as:
[tex]\mathbf{y = -0.17 + 0.095x}[/tex]
A linear regression equation is represented as:
[tex]\mathbf{y = b + mx}[/tex]
Where m represents the slope
By comparison:
[tex]\mathbf{m = 0.095}[/tex]
Hence, the true average flow rates associated to a 1 in pressure increment is 0.095
(c) The average change in flow rate when pressure drops decreases by 5 in
The domain of the function is given as:
[tex]\mathbf{x = 5\ to\ 20}[/tex]
A decrement of -5 in means: x = -5
This is out of the domain of the function
Hence, the average change at a decrement of 5 in cannot be calculated
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(a) A mixed hockey team of 11 must have at least 5 boys and at least 5 girls. There are 7 boys and 8 girls available for selection. How many different teams can be selected? (b) One of the girls, Caitlin, is selected as captain of the team and must play every game. One of the boys, Stephen, is injured and can no longer play. How many teams can be selected now? Pls answer asap
Answer:
A) I) 49 teams
II)63 teams
B) 28 teams
Step-by-step explanation:
A) a team of 5 boys and 6 Girls
=7C5+ 8C6
= 21+28
= 49 teams
a team of 6 boys and 5 girls
= 7C6 + 8C5
= 7+56
= 63 teams
B) one girl is kept constant already and a guy has injury
Girls remaining to choose from 7
Boys remaining to choose from 6
= 1 +7C5 + 6C5
= 1+21+6
= 28 teams
Which of the following is a typical cost associated with renting?
a closing costs
b. down payment
C.
property tax
d. security deposit
Please select the best answer from the choices provided
OA
ОВ
ОС
OD
Answer:
The answer is C. Property tax.
Step-by-step explanation:
An example of a typical cost that is not associated with renting include the following: C. property tax.
What are the types of tax?In Economics, there are different types of tax that are being levied on individuals or business organizations by the government, and these include the following:
Sales tax
Income tax
Property tax
here, we have,
Generally speaking, property taxes are typically determined with respect to the monetary value of a property in real estate. This ultimately implies that, property taxes are typically determined based on the monetary value that is associated with a property.
In conclusion, last month's rent, security deposit, and pet deposit are examples of cost that are associated with renting.
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4y-2n=9,for y please show step by step
Answer:
y = (1/2n) + (9/4)
Step-by-step explanation:
4y - 2n = 9
add 2n to both sides
4y = 9 + 2n
divide both sides by 4
y = (9/4) + (2/4n)
simplify
y = (9/4) + (1/2n)
put in standard form
y = (1/2n) + (9/4)
Answer:
y=9+2n/4
Step-by-step explanation:
4y-2n=9
+2n
4y=9+2n
÷4 ÷4
y=9+2n/4
I DON'T UNDERSTAND! Use a system of equations to solve a word problem.
A. The sum of two numbers is -2, and their difference is 4. Find the two numbers.
B. One number is 2 less than a second number. Twice the second number is 14 less than 5 times the first. Find the two numbers.
C. A flat rectangular piece of aluminum has a perimeter of 64 inches. The length is 8 inches longer than the width. Find the width. Select one: A) 20 in. B) 32 in. C) 28 in. D) 12 in.
Answer:
A) 1 and -3
B) 8 and 6
C) D) 12 in.
Step-by-step explanation:
A) 1 and -3
B) x-2 = first number
x = second number
2x=5(x-2)-14
2x=5x-10-14
2x=5x-24
2x+24=5x
24=5x-2x
24=3x
8=x
So the two numbers are 8 and 6
C) width=x
length=x+8
x+x+x+8+x+8=64
4x+16=64
4x=48
x=12
2. Graph: y = x+2
please help
Answer:
Start at (0,2) and draw a line to (3,1)
Step-by-step explanation:
Since +2 is the y-intercept, we must start there.
Always remember the saying "rise over run". Since -1 is the "rise", we must go down one, "3" is the run, so we must move over to the right 3 times.
You weigh six packages and find the weights to be 35, 25, 75, 30, 70, and 65 ounces. If you include a package that weighs 155 ounces, which will increase more, the median or the mean?
Answer:
Neither, they increase by the exact same amount.
Step-by-step explanation:
With the first data set you have a mean of 50 and a median value of 50 as well because to find a median of an even set of numbers you take the two middle values and average them together, in this case being 35 and 65 averaging out to 50. Adding 155 to this data set increases the mean to 65 and the median value to 65 as well, making this a trick question because the increase is the exact same.
For which equation would x=12 be a solution? x+12=30 15+×=15 x+5=18 12+×=24
Answer:
12+x=24
Step-by-step explanation:
To do this you would just plug in 12 for x to each equation and when you do that the only one that would be right would be 12+x=24
Hi there! Hopefully this helps!
-----------------------------------------------------------------------------------------------------
Answer: 12 + x = 24~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~x + 12 = 30
x = 18.
---------------------------------
15 + x = 15.
x = 0
---------------------------------
x + 5 = 18
x = 13
---------------------------------
12 + x = 24x = 12the formula for the volume of a cylinder is v = πr2h, where V is volume, r is radius, and h is height. what is the volume of a cylinder that is 6 inches high and has a radius of 3 inches
Answer:
169.65
Step-by-step explanation:
Listed below are the amounts (dollars) it costs for marriage proposal packages at different baseball stadiums. Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results. Are there any outliers, and are they likely to have much of an effect on the measures of variation?
38, 50, 50, 55, 55, 95, 95, 130, 180, 213, 250, 350, 450, 1750, 3000
Answer:
Question 1
a) Range
= $2962
b) Variance
= $680557.4954
c) Standard Deviation
= $824.9590871
Question 2
Are there any outliers, and are they likely to have much of an effect on the measures of variation?
Yes, there are outliers present I the given sample data.
These outliers are the larger cost for marriage proposals which are: 1750, 3000
These largest costs are much bigger than the rest of the sample data, and they would likely have much of an effect on the measures of variation
Step-by-step explanation:
We are given the following sample data in dollars
38, 50, 50, 55, 55, 95, 95, 130, 180, 213, 250, 350, 450, 1750, 3000
Question 1
a) Range
This is the difference between the maximum cost and the minimum cost
The minimum cost = $38
The maximum cost = $3000
Range = $3000 - $38
= $2962
b) Variance
Reading the question, we are given sample data.
Hence, we use the formula for Variance of a sample
= (Mean - x)²/N - 1
Step 1
We find the Mean
Mean = Sum of terms/Number of terms
Number of terms = 15
Mean = 38 + 50 + 50 + 55 + 55 + 95 + 95 + 130 + 180 + 213 + 250 + 350 + 450+ 1750 + 3000/15
= $6761/15
= $450.7333333
Step 2
(x - Mean)²/N - 1
N = 15
= $[(38 - 450.7333333)²+ (50 + 450.7333333)²+( 50 +450.7333333)² + (55 +450.7333333)² + (55 +450.7333333)² + (95 + 450.7333333)²+ (95 +450.7333333)²+ (130 +450.7333333)²+ (180 +450.7333333)² + (213 + 450.7333333)²+ (250 +450.7333333)² + (350 + 450.7333333)² + (450 +450.7333333)²+ (1750 +450.7333333)² + (3000 +450.7333333)²]/15 - 1
=$ (- 412.7333333² + -400.7333333² + -400.7333333² + -395.7333333² + -395.7333333² + -355.7333333² + -355.7333333² + -320.7333333² + -270.7333333² + -237.7333333² + -200.7333333² + -100.7333333² + -0.7333333333² + 1299.266667² + 2549.266667²)/15 - 1
= $( 170348.8044+ 160587.2044, 160587.2044+ 156604.8711, 156604.8711+ 126546.2044, 126546.2044+ 102869.8711, 73296.53776+ 56517.13776, 40293.8711+ 10147.20444+ 0.5377777777+ 1688093.872, 6498760.539)/14
= $9527804.935/14
Variance = $680557.4954
c) Standard deviation = √Variance
Standard deviation = √$680557.4954
= $824.9590871
Question 2
Are there any outliers, and are they likely to have much of an effect on the measures of variation?
Yes, there are outliers present in the given sample data.
These outliers are the largest cost for marriage proposals which are: $1750 and $3000
These largest costs are much bigger than the rest of the sample data, and they would likely have much of an effect on the measures of variation.
Where is the hundred thousand place
If a string that is 15.5 inches long is cut into equal peices that are 1.25 inches long how many prices of ribbon can be created
Answer:
12.4 pieces of ribbon
Step-by-step explanation:
When looking in the question, we can see the term "cut into equal pieces." This can insure to us that we need to divide two numbers. Since we originally have 15.5 inches long string, and we want to cut it into strings that are 1.25 inches long. We divide :
15.5 / 1.25
==> 12.4
Solve |
Answer:
I need something to slove
Step-by-step explanation:
(20 points) A statistics practitioner calculated the mean and the standard deviation from a sample of 400. They are x = 98 and s = 20: (a) Compute the p-value in order to test H0 : = 100 against H1 : 6= 100: (b) Compute the p-value in order to test H0 : = 100 against H1 : > 100:
Answer:
The P-value is 0.0234.
Step-by-step explanation:
We are given that a statistics practitioner calculated the mean and the standard deviation from a sample of 400. They are x = 98 and s = 20.
Let = population mean.
So, Null Hypothesis, : = 100 {means that the population mean is equal to 100}
Alternate Hypothesis, : > 100 {means that the population mean is more than 100}
The test statistics that will be used here is One-sample t-test statistics because we're yet to know about the population standard deviation;
T.S. = ~
where, = sample mean = 98
s = sample standard deviation = 20
n = sample size = 400
So, the test statistics = ~
= -2
The value of t-test statistics is -2.
Now, the P-value of the test statistics is given by;
P( < -2) = 0.0234 {using the t-table}
4. Solve 9k + 3 > 6k - 18.
k> -7
k > 5
k> -5
O
k> 7
Answer:
k > - 7Step-by-step explanation:
9k + 3 > 6k - 18
To solve the inequality shown first group like terms.
That's send the constants to the right side of the inequality and those with variables to the left side.
We have
9k - 6k > - 18 - 3
Simplify
3k > - 21
Divide both sides by 3
We have the final answer as
k > - 7Hope this helps you
What is the value of 36x-8y² when x = 3 and y= 6
Answer:
-180
Step-by-step explanation:
just simply put the values in place of variables and solve
36(3) - 8(6)^2
108 - 8(36)
108 - 288
-180
Answer:
-180
Step-by-step explanation:
Plug in the variable numbers: [tex]36(3) - 8(6)^{2}[/tex] 36 × 3 = 108Plug 108 in: [tex]108 - 8(6)^{2}[/tex] [tex]6^{2}[/tex] = 6 × 6 = 36Plug 36 in: [tex]108 - 8(36)[/tex] 8 × 36 = 288Plug 288 in: 108 - 288108 - 288 = -180Gessenia is having trouble interpreting how the constants within each expression can be represented in the given scenario. Draw a model or write an expression that explains this term.
Answer:
The height and width of the interior tile = 3·x + 4 - 4 = 3·x and 2·x + 4 - 4= 2·x
Please see attached diagram
Step-by-step explanation:
The given parameters are;
The given rectangular floor tile with width = 3·x + 4 and height = 2·x + 4
Where, x is in centimetres
The interior tile maintains a height to width ration of 2:3
The dimension of the trim border = 2 cm
Therefore;
The relationship between the width and height of the interior and exterior tiles is given as follows
Width of exterior tile = Width of interior tile + 2 × The dimension of the trim border
Which gives;
Width of exterior tile = Width of interior tile + 2 × 2 = Width of interior tile + 4
Height of exterior tile = Height of interior tile + 2 × The dimension of the trim border
Height of exterior tile = Height of interior tile + 2 × 2 = Height of interior tile + 4
Where the interior tile maintains a height to width ration of 2:3, we have;
For a unit length x, The height and the width of the interior tiles are 2·x:3·x
Therefore, for a given height 2·x, the width will be 3·x
Given the width of the exterior tile = 3·x + 4
The height of the exterior tile will then be 2·x + 4 and the width of the exterior tile will be 3·x + 4
The sides ratio of the interior tiles remain 2·x:3·x = 2/3
What is the measure of the following? M AOC
Answer:
mAOC = 40
Step-by-step explanation:
This is because from 40 to 60 degrees its 20 degrees, and then from 60 to 80 degrees its 20 degrees so 20 +20= 40 degrees
evaluate -1 -(-z) where z = -2
Answer:
1
Step-by-step explanation:
-1 - (-z)
-1 - (-2)
-1 + 2
1
Answer:
-3
Step-by-step explanation:
What is the difference between the values of 3, 3.0, and 3.00?
Answer:
There is no difference.
Step-by-step explanation:
When it comes to significant figures, they matter.
However, if you just add zeros, they essentially just become placeholders. 3 already has 0 for decimals, so it is equal to 3.0 and 3.00.
- 4(-5h-4)=2(10h+8) *
Answer:
0
Step-by-step explanation:
We need to solve the given expression for the value of h.
- 4(-5h-4)=2(10h+8)
Opening brackets on both sides of the above equation
+20h+4=20h+16
Taking h terms on the one side and the constants on the another side
20h-20h=16-4
0=20
It means that the value of - 4(-5h-4)=2(10h+8) is equal to 0.
A researcher conducts a study on the effects of task difficulty (easy, hard) and presence of others (no one else present, 5 other people present) on task performance. Task performance is assessed by measuring how many Sudoku puzzles a participant is able to complete in 30 minutes. Below are the mean numbers of correct responses for each of the resulting conditions in the study. Easy Difficult No one else present 7 9 Five others present 14 2 The results from this study indicate there is ________________________________________.
Answer:
gcyj gc yj g
Step-by-step explanation:
cgyj jc y gc jyjgcjc gj gcjg jg jgjy g yjcgj