Answer:
1/2
Step-by-step explanation:
A distribution is positively skewed. Which is the most probable order for the three measures of central tendency
Answer:
The answer is mode, median, mean.
Step-by-step explanation:
From the smallest to the largest we have the mode, median, mean. If a distribution is positively skewed it means that it is right skewed. It tells us that the right tail of this distribution has longer length compared to the left tail. The average, mean would be moved slightly to the left, the mode occurs at the top while the median is in the middle.
Two identical gardens are to be weeded, each by a two-person team. Team A includes one gardener who could weed the garden in 2 h and another who could weed the garden in 4 h. Team B includes two gardeners, either of whom could weed the garden in 3 h. Which team will finish first? Explain.
Step-by-step explanation:
Team A time is 1 garden / ( 1 garden/ 2 hr + 1 garden/4 hr) = 1 1/3 hr
Team B = 1 / ( 1/3 + 1/3) = 1 1/2 hr
Team A wins !
If your base pay is 10000 your commission rate is 40% you sell 15 cars and you earn 40000 how much does each car cost
Answer: $4,000
Step-by-step explanation:
If the total earnings were $40,000 and the base pay was $10,000, then the commission earned would be $40,000 - $10,000 = $30,000.
Since the commission rate is 40%, we can set up the equation:
40% x Total Sales = Commission Earned
We know that the commission earned is $30,000, and we also know that 15 cars were sold. Therefore, we can solve for the average price of each car:
40% x Total Sales = Commission Earned
40% x (15 x Price per Car) = $30,000
6 x Price per Car = $30,000
Price per Car = $5,000
However, this is just the average price per car. Since the commission is based on the total sales, we need to calculate the actual commission earned on each car:
Commission per Car = 40% x Price per Car
Commission per Car = 40% x $5,000
Commission per Car = $2,000
Therefore, the total earnings of $40,000 divided by the number of cars sold (15) gives the amount earned per car:
Amount earned per Car = Total Earnings / Number of Cars Sold
Amount earned per Car = $40,000 / 15
Amount earned per Car = $4,000
Mary makes trail mix with bulk nuts and dried fruit. She spends $4.50 on the dried fruit. Mixed nuts cost $2.50 per pound. She has a total of $12 to spend. What are the possible number of pounds of nuts she can buy?
Answer: 3 pounds
Step-by-step explanation: 12 - 4.50 = 7.50 7.50/2.50=3
What is the area of a section of pavement that is 20 ft wide and 50 yd long? Give your answer in square feet.
Answer: 3000
Step-by-step explanation:
Since this is supposed to be square feet, you need to multiply 50 by 3 to convert yards to feet. So, this is 20x150 square feet, which is 3000 square feet.
Answer:
3,000 square feet.
Step-by-step explanation:
20 ft. x 50 yd. x 3 ft.
1 yd.
= 3,000 square feet.
9 + 1/2 (7n -26) - 8n
Answer:
i believe it is - 9n/2 - 4
Step-by-step explanation:
Hope this helps
In a simple random sample of 144 households in a city in Kentucky, the average number of children in these households was 1.12 children. The standard deviation from this sample was
2.40 children. A 90 percent confidence interval for the mean number of children in all
households in this city is:
Select one:
O a. 1.12 ± 0.2.
O b. 2.40 ± 0.2.
c. It is impossible to tell without a census.
O d. 1.12 ± 2.40.
O e. 1.12 ± 0.328.
A 90% confidence interval for the mean number of children in all household in this city is 1.12 ± 0.328, using formula for confidence interval.
What are mean and standard deviation ?
The standard deviation is a summary measure of the differences of each observation from the mean.
Formula to calculate confidence interval using mean and deviation:
mean ± Z*(std deviation/√n)
where n = sample size,
Given that :
mean = 1.12
deviation = 2.40
n = 144
We know Z is fixed for 90% confidence i.e. 1.64
So, the confidence interval = 1.12 ± 1.64*(2.4/√144)
= 1.12 ± 1.64 * .2
= 1.12 ± .328
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if the mean of a data is 316 and the sum of its observation is 3792 find the number of observations in the data.
Answer:
12
Step-by-step explanation:
mean is calculated as
mean = \(\frac{sum}{count}\)
Here mean = 316 and sum = 3792 , count n is required to be found, so
\(\frac{3792}{n}\) = 316 ( multiply both sides by n )
3792 = 316n ( divide both sides by 316 )
12 = n
There are 12 observations in the data
The amount you pay for a car is not usually the "sticker price," which may be the starting price. The price of a car was reduced by $300 from the sticker price, increased by $900 for additional features, and then reduced by $600 by the dealer. What integer represents the total change in price with respect to the sticker price? Use a number line to represent the change from the sticker price.
There will be no change in the price of the car.
What is a number line?A number line is a representation of a graduated straight line used to abstract real numbers in elementary mathematics. Its points are considered to correspond to real numbers and vice versa.
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Let the sticker price = x, Price reduced by $300
Hence the new price is,
N= x-$300
The cost of additional features = $900
Hence the new price for selling will be.
=x-$300+$900
=x+$600
Dealer also provides a discount of $600
Hence Final selling price will be
=x+$600-$600
Hence there seems to be no change in the sticker price as the sticker price and the final selling price are the same.
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The Lucas sequence is like the Fibonacci sequence except that the starting numbers are 2 and 1 instead of 1 and 0. What are the first ten terms of the Lucas sequence?
The first ten terms of the Lucas sequence are 2, 1, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322, 521, 843.
What is Lucas sequence?The Lucas sequence or Lucas series are an integer sequence named after the mathematician francois Edouard Lucas, which are similar to the Fibonacci numbers, each Lucas number is defined to be the sum of its two immediate previous terms, thereby forming a fibonacci integer sequence.
Now, the sequence of first 10 numbers of Fibonacci series are-
0, 1, 1 ,2, 3, 5, 8, 13, 21, 34
which are defined as set of integers that starts with zero, followed by a one,then by another one and then by series of steadily increasing numbers,The sequence follow the rule that each number is equal to the sum of preceding two numbers.
And the sequence of Lucas sequence is -
2, 1, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322, 521, 843.
which is definedas the sum of its two immediate previous terms.
The Lucas number may thus be defined as follows;
Ln = \(\left \{ {{2} ; if n= 0 \atop {1}; if n = 1} \right.\)
Here we can see that Lucas series starts with 2 and 1 whereas Fibonacci series starts with 0 and 1.
Hence,The first ten terms of the Lucas sequence are 2, 1, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322, 521, 843.
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In a certain chemical, the ratio of zinc to copper is 4 to 11. A jar of the chemical contains 418 grams of
copper. How many grams of zinc does it contain?
It contains
grams of zinc.
Answer:
Step-by-step explanation:
Zinc:copper = 4:11
Amount of zinc = 4x
Amount of copper = 11x
11x = 418
x = 38 grams
Amount of zinc = 4x = 152 grams
$500 is invested in an account earning 7% interest compounded quarterly. Find the value
after 8 years.
The amount of the investment after 8 years will be, $4,357.64
Given, $500 is invested in an account earning 7% interest compounded quarterly.
We have to find the value of the invested amount after 8 years,
as, Amount = P(1 + r/100)^t
where, P is the amount of money invested, r is the rate of interest and t is the amount of time
Amount = 500(1 + 7/100)^(8×4)
Amount = 500(1.07)^32
Amount = 500×8.715
Amount = 4,357.635
So, the amount of the investment after 8 years will be, $4,357.64
Hence, the amount of the investment after 8 years will be, $4,357.64
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what is the property of 3x(5x7)=(3x5)7
The property you are referring to is called the associative property of multiplication. According to this property, when multiplying three numbers, the grouping of the numbers does not affect the result. In other words, you can change the grouping of the factors without changing the product.
In the equation you provided: 3x(5x7) = (3x5)7
The associative property allows us to group the factors in different ways without changing the result. So, whether we multiply 5 and 7 first, or multiply 3 and 5 first, the final product will be the same.
Solve this proof. (Flow chart proof)
Given: HF || GK, angle F and angle K are right angles.
Prove: FG congruent to KH
FG and KH are congruent using the AAS theorem. ∠F = ∠K and ∠G = ∠H
What is the AAS congruence theoremThe AAS (Angle-Angle-Side) Congruence Theorem is a geometric theorem that states that if two angles and a non-included side of one triangle are congruent to two angles and the corresponding non-included side of another triangle, then the two triangles are congruent.
In other words, if two triangles have two corresponding angles that are congruent, and the included side between these angles is also congruent in both triangles, then the two triangles are congruent.
The diagram shows that we have two triangles here. The first triangle is equal to the second triangle.
This is shown by the fact that the angle at F = angle at K
the angle at H = angle at G
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Answer:
use AAS for this
Step-by-step explanation:
A lot of points. PLEASE HELP! I will mark brainliest. Whoever gets it right first.
Someone help with this equation
The answer is:
g(x + 1) = 6x + 1
g(4x) = 24x -5
Work/explanation:
To evaluate, I plug in x + 1 into the function:
\(\sf{g(x)=6x-5}\)
\(\sf{g(x+1)=6(x+1)-5}\)
Simplify
\(\sf{g(x+1)=6x+6-5}\)
\(\sf{g(x+1)=6x+1}\)
------------------
Do the same thing with g(4x)
\(\sf{g(4x)=6(4x)-5}\)
\(\sf{g(4x)=24x-5}\)
Hence, these are the answers.
Beth can swim 2 laps in 7 minutes.What id beths rate in minutes per lap
A.1/2 of a minute per lap.
B.7/1 minutes per lap
C.7/2 minutes per lap
D. 2/7 of a minute per lap
Answer:
C) 7/2 minutes per lap
Step-by-step explanation:
7 laps/ 2minutes. To find how many minutes it takes Beth to swim one lap, which is her in minutes per lap, you have to divide 7/2 to get 3.5 min/1 lap, or 7/2 min/1 lap.
Find x round. your answer to the nearest tenth of a degree
Answer:
x = 55.6
Step-by-step explanation:
Recall the 3 main trig functions
Sin = opposite / hypotenuse
Cos = adjacent / hypotenuse
Tan = opposite / adjacent
Note that hypotenuse = longest side length
We want to find angle "x".
We are given its opposite side length ( 19 ) as well as the adjacent side length
When dealing with the opposite and adjacent we use tan
Tan = Opp / Adj
Opp = 19 and Adj = 13
Tan(x) = 19/13
* take the inverse tan of both sides *
x = 55.6
which equation represents the slope intercept form of the line when the y intercept is (0,-6) and the slope is -5
The values into the slope-intercept form, we have y = -5x - 6
The slope-intercept form of a linear equation is given by:
y = mx + b
where 'm' represents the slope of the line, and 'b' represents the y-intercept.
In this case, the y-intercept is (0, -6), which means that the line crosses the y-axis at the point (0, -6).
The slope is given as -5.
Therefore, substituting the values into the slope-intercept form, we have:
y = -5x - 6
This equation represents the line with a y-intercept of (0, -6) and a slope of -5.
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what are the rules of absolute in mathematics
Answer:
The absolute value is always a positive number except for zero. More defined answer below...
Step-by-step explanation:
|x| = x if x is positive, and |x| = −x if x is negative (in which case −x is positive), and | 0 | = 0
can you help me please
Hence the correct option is to translate down 2 unit
Transformations can be non-rigid (when the preimage's size or shape is unaltered) or stiff (where the size is changed but the shape remains the same). These are the fundamental guidelines that this concept abides by. It is a straightforward approach to alter 2D forms.
Planar transformations and spaces can be distinguished from one another using the dimensions of the operand sets.
We have the parent function f(X)= x
and transformed function is g(x)= -3f(x+5)-2
the parent function f(x) is translated dawn 2 units and stretched by 5 .
Hence the correct option is to translate down 2 unit
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Using the data in the table, use the exponential smoothing method with alpha=0.5 and a February forecast of 500 to forecast
sales for May
Month Demand
January 480
February 520
March 535
April 550
May 590
June 630
Answer:
Step-by-step explanation:
The formula to calculate the forecast could be determine by using the exponential smoothing method :
\(Ft = F(t-1) + \alpha [A(t-1) - F(t-1)]\)
Where ,Ft is the Forecast for period t
F(t-1) is the Forecast for the period previous to t
A(t-1) is the Actual demand for the period previous to t
\(\alpha\) = Smoothing constant
To get the forecast for may and june the above formula with \(\alpha =0.5\) and april forecast of 500 will be used
For march
\(=500+0.5(520-500)\\\\=500+0.5\times20\\\\=500+10\\\\=510\)
For April
\(=510+0.5(535-510)\\\\=510+0.5\times25\\\\=510+12.5\\\\=522.5\)
For May
\(=522.5+0.5(550-5225)\\\\=522.5+0.5\times27.5\\\\=522.5+13.75\\\\=536.25\)
So forecast for May = 536.25
Solve for a.
60°
a
60°
a = [? ]°
The value of a in the equation 60°a = [? ]° is dependent on the value of [? ].
Explanation:
To solve for a in the equation 60°a = [? ]°, we need to isolate a on one side of the equation. We can do this by dividing both sides of the equation by 60°:
60°a / 60° = [? ]° / 60°
This simplifies to:
a = [? ]° / 60°
Since we don't have the value of [? ]°, we cannot determine the exact value of a. However, we can simplify the expression by canceling out the ° units:
a = [? ] / 60
Therefore, the value of a is dependent on the value of [? ].
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Find the area of the shape shown below.
2
2
2
2
2
units2
Answer:
the area is 32
Step-by-step explanation: 2 x 2 x 2 x 2 x 2= 32
Find the product of 217 and 68
Answer:
14,756
Step-by-step explanation:
217*68 = 14,756
Hope this helps!
Could you mark me as brainiest?
It would help me a lot!
Thank you!
A shirt is regularly priced at 42$. It is on sale for 15% off of the regular price. What is the sale price of the shirt ?
Answer:
$35.7
Step-by-step explanation:
you can convert 15% to a decimal by dividing by 100.
15/100 = .15
if you multiply the decimal by the cost of the shirt you get how much the discount is.
0.15 * $42 = 6.30
so a 15% discount on a $42 shirt is $6.30 off. So you subtract the discount from the total cost.
$42 - $6.30 = $35.70 that is the sale price of the shirt.
Answer:
$35.7
Step-by-step explanation:
Fill in each blank of the table shown by converting
given form of a number into the missing form of the
number.PICTURE BELOW
IM SO CONFUSED PLEASE HELP THANK YOU
Answer:
A. 0.11111
B. 17/100
C.0.232323
D. 6/9 or 2/3
E. 1.8888889
F. 4/11
G. 1.45454545
H. 3/100
Step-by-step explanation:
Convert them to fractions and decimals
HELP PLSSSSSSSSSSSSS
Answer:
the volume of the toy house is 66cm3
You have a 10% sugar salutation and a 30% sugar salutation and you need a 25% sugar salutation how many cups of each salution do you need to get 8 cup of 25% sugar salution let x represent numbernof cups of 10% and y represent numberbof cups 30% sugar salution what eqution represent the total valume
2 cups of 10% sugar solution and 6 cups of 30% sugar solution.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements
Let,
x = number of cups of the 10% solution
y = number of cups of the 30% solution
As this is the whole amount we need, the two mixtures sum up to 8 cups. Consequently, the first equation is just x + y = 8
Solve for y to get y = 8-x. We'll use this equation later.
The second equation is a bit more tricky.
0.10x = amount of pure sugar from just the 10% batch
0.30y = amount of pure sugar from just the 30% batch
0.10x+0.30y = total amount of pure sugar from both batches
25% of 8 = 0.25×8 = 2 = total amount of pure sugar required
0.10x+0.30y = 2 is the second equation
Apply substitution to solve for x and y
0.10x+0.30y = 2 ..... start with the second equation
0.10x+0.30(8-x) = 2 ....... plugin y = 8 - x
0.10x + 2.4 - 0.30x = 2 ..... distribute
- 0.20x + 2.4 = 2 - 0.20x = 2-2.4 ....... subtract 2.4 from both sides
-0.20x = - 0.4
x = -0.4/(-0.20)
x = 2
Now that we know the value of x, we can find y.
y = 8 - x
y = 8 - 2 ... plug in x = 2
y = 6
So we need 2 cups of the 10% solution and 6 cups of the 30% solution.
As a check,
x + y = 2 + 6 = 8 works out
0.10x + 0.30y = 0.102 + 0.306 = 0.2 + 1.8 = 2 works out as well
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Find the value of x in the isosceles triangle shown below
Check the picture below.
\(\begin{array}{llll} \textit{using the pythagorean theorem} \\\\ a^2+o^2=c^2\implies o=\sqrt{c^2 - a^2} \end{array} \qquad \begin{cases} c=\stackrel{hypotenuse}{8}\\ a=\stackrel{adjacent}{2}\\ o=\stackrel{opposite}{x} \end{cases} \\\\\\ x=\sqrt{ 8^2 - 2^2}\implies x=\sqrt{ 64 - 4 } \implies x=\sqrt{ 60 }\)