Answers
Step by step solution:
The way you find area of a parallelogram is base times height so in A it would be 2x4 so 8 cm^2. You need to add the unit and have it squared to show that it’s representing a 2d space instead of a length
Solution (part 2-enlarged): a=32 cm^2, b=16 cm^2, c=60cm^2
Step by step solution (part 2):
It’s basically the same as before except that you multiply the side lengths by 2 BEFORE multiplying the height and base. So a would be (2x4)x(2x2) or 8x4=32.
Related Questions
help pleaseeeeeeeeeee
Answers
Answer:
B & C
Step-by-step explanation:
The two binomials are equal to zero to find the roots.
Hope this helps
Ashley is training to run a marathon. On Monday, she runs 21 miles in 3 hours. On Wednesday, she runs 10 1/2 miles in 1 1/2 hours. What is the constant of proportionality in miles per hour?
Answers
Answer:
10.5 mph
Step-by-step explanation:
To find the constant of proportionality in miles per hour, we need to divide the distance (in miles) by the time (in hours) for each of the two runs, and then take the average of the two rates.
For Monday's run:
Rate = Distance / Time = 21 miles / 3 hours = 7 miles per hourFor Wednesday's run:Rate = Distance / Time = 10 1/2 miles / 1 1/2 hours = (21/2) miles / (3/2) hours = 14 miles per hour
To find the average rate, we add the two rates and divide by 2:Average rate = (7 miles per hour + 14 miles per hour) / 2 = 10.5 miles per hour
Therefore, the constant of proportionality in miles per hour is 10.5. This means that Ashley runs at an average rate of 10.5 miles per hour during her training.
The distance around a triangle is 40 centimeters. If two sides are equal and the length of the third side is 10 centimeters, what is the length of each of the other two sides?
Answers
Answer:
15 centimeters each = the two other sides of the triangle is 30 cm.
Step-by-step explanation:
Choose 1 answer:
(Choice A)
Add 10 to the input to get the output.
(Choice B)
Multiply the input by 2 to get the output.
(Choice C)
Multiply the input by 3. Then subtract 5 from the result to get the output.
Answers
Answer:
its multiply by 2
Step-by-step explanation:
the reason for this is because 5 x 2=10
10 x 2 =20
15 x 3 = 30
may i have brainliest
Keith plays basketball at a gym. He can get a $20 membership card and pay $2 for every visit, or he can go any time and just pay $5 for each visit. Which two equations represent the two options for his
number of visits with his total ccost?
Answers
The two equations that can be used to represent his number of visits with his total cost will be 20 + 2x and 5x.
Let the number of visits be represented by x.
Since Keith can get a $20 membership card and pay $2 for every visit, or he can go any time and just pay $5 for each visit, then the equation to represent the information will be:
20 + (2 × x) = (5 × x)
20 + 2x = 5x
Therefore, the equations will be 20 + 2x and 5x.
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Please help me in confused
Answers
Answer:
20\(c^{6}\)
Step-by-step explanation:
using the rule of exponents
\(a^{m}\) × \(a^{n}\) = \(a^{(m+n)}\)
given
(- 4c³)(- 5c³) ← remove parenthesis
= - 4 × c³ × - 5 × c³
= - 4 × - 5 × c³ × c³
= 20 × \(c^{(3+3)}\)
= 20\(c^{6}\)
This week a very large running race 5K occurred in Denver the times were normally distributed with a mean of 23.92 minutes and the standard deviation of 3.4 minutes what time in minutes is the cut off for the fastest 51.99% and what percent of runners took more than 32.128 minutes to complete the race
Answers
Answer:
a) 24.09 minutes
b) 0.8%
Step-by-step explanation:
This week a very large running race 5K occurred in Denver the times were normally distributed with a mean of 23.92 minutes and the standard deviation of 3.4 minutes what time in minutes is the cut off for the fastest 51.99%
Z score for 51.99% = 0.05
z = (x-μ)/σ,
where x is the raw score = ? minutes
μ is the population mean = 23.92 minutes
σ is the population standard deviation = 3.4 minutes
0.05 = x - 23.92/3.4
Cross Multiply
0.05 × 3.4= x - 23.92
0.17 = x - 23.92
0.17 + 23.92 = x
x = 24.09 minutes
What percent of runners took more than 32.128 minutes to complete the race
= z score
z = (x-μ)/σ,
where x is the raw score = 32.128 minutes
μ is the population mean = 23.92 minutes
σ is the population standard deviation = 3.4 minutes
z = 32.128 - 23.92/3.4
z = 2.41412
P-value from Z-Table:
P(x<32.128) = 0.99211
P(x>32.128) = 1 - P(x<32.128) = 0.0078867
Approximately =0.008
Converting to percentage = 0.008 × 100
= 0.8%
Using the normal distribution, it is found that:
The cut off for the fastest 51.99% of times is of 24.09 minutes.0.25% of runners took more than 32.128 minutes to complete the race.Normal Probability DistributionIn a normal distribution with mean \(\mu\) and standard deviation \(\sigma\), the z-score of a measure X is given by:
\(Z = \frac{X - \mu}{\sigma}\)
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.In this problem, we have that the mean and the standard deviation are, respectively, \(\mu = 23.92, \sigma = 3.4\).
The cut off for the fastest 51.99% is the lowest 51.99% of times, that is, the 51.99th percentile, which is X when Z = 0.05.
\(Z = \frac{X - \mu}{\sigma}\)
\(0.05 = \frac{X - 23.92}{3.4}\)
\(X - 23.92 = 0.05(3.4)\)
\(X = 24.09\)
The cut off for the fastest 51.99% of times is of 24.09 minutes.
The proportion of runners who took more than 32.128 minutes to complete the race is 1 subtracted by the p-value of Z when X = 32.128, hence:
\(Z = \frac{X - \mu}{\sigma}\)
\(Z = \frac{32.198 - 23.92}{3.4}\)
\(Z = 2.43\)
\(Z = 2.43\) has a p-value of 0.9925.
1 - 0.9925 = 0.0025.
0.0025 = 0.25% of runners took more than 32.128 minutes to complete the race.
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please help, it’s urgent ! :)
Answers
9514 1404 393
Answer:
[-4, -1)[-1, 1)[1, 5]Step-by-step explanation:
The numbers that describe the domain of the piece are the x-value at the left end and the x-value at the right end of each piece.
Piece 1 is defined between x=-4 and x=-1, so the interval is [-4, -1).
Piece 2 is defined between x=-1 and x=1, so the interval is [-1, 1).
Piece 3 is defined between x=1 and x=5, so the interval is [1, 5].
_____
Additional comment
The rounded bracket at the right end of the domain interval means the point is not included. The square bracket means the point is included. In general, you only want each x-value to have one corresponding f(x) definition, so it is usually not appropriate to include it as part of two different pieces of the piecewise function. [-4, -1) means -4 ≤ x < -1.
Which of the following best describe this graph?
skewed left
skewed right
uniform distribution
center near 5
center near 7
data spread from 3 to 9
does not have an outlier
Answers
The term that best describe this graph attached is
does not have an outlier
What is outlier?An outlier is a data point that significantly deviates from the general pattern or trend of a dataset. It is an observation that is noticeably different from other data points in terms of its magnitude or value.
Outliers can be either unusually high (positive outliers) or unusually low (negative outliers) compared to the rest of the data.
The graph is not exactly uniform even though it is not skewed
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the scale from a square exercise mat in a gymnastic arena to a scale copy of the exercise mat is 8 m for every 2 in. The actual area of the exercise mat is 144m2. What are the dimensions of the mat on the scale copy?
Answers
Answer: 18 and 36
Step-by-step explanation:
The scale is 8m for every 2 in and the actual area is 144m2 so we need to covert that into inches. You divide 144 by 8 which = 18 and then multiply 18 x 2 which is equal to 36.
Suppose that the sample size had been 4500 rather than 1033. Find the margin of error for 95% confidence for the larger sample Give your answer to three decimal places. margin of error:
Answers
The formula for calculating margin of error is expressed as
\(\text{margin of error = z }\times\text{ (}\sqrt[]{\frac{pq}{n}})\)Where
p represents the probability of success
q represents the probability of failure
n represents sample size
z represents the z score for a 95% confidence interval
From the information given,
p = 30% = 30/100 = 0.3
q = 1 - p = 1 - 0.3 = 0.7
n = 4500
From the standard normal distribution table, z = 1.96
By substituting these values into the formula, we have
\(\text{margin of error = 1.96}\times\sqrt[]{\frac{0.3\times0.7}{4500}}\text{ = }0.013\)margin of error = 0.013
Please help me answer this question will give Brainlst!:) I
Answers
Answer:
B, E, and F
Step-by-step explanation:
Functions that are linear form a straight line when graphed.
Answer:
B,E,F
Step-by-step explanation:
A linear function follows the formula of...
y = mx + b
So don't get tripped up by exponents (letter c and d)
C is a quadratic and D is an exponential function
and...
A is a parabola
E, might trip some people up but communitive property is "at hand", the equation does (a + x) is the same as (x + a) ( <--- for example)
*communitive property is only seen in multiplication and addition
F is where you have to use the distributive property, distribute the 5 to the x and the 0.6
Formulas:
Linear: y = mx + b
Quadratic: y = x^2
Exponential: y = b^x
Parabola: y = 1/x
4
(Graphing Proportional Relationships LC)
The table shows a proportional relationship.
x 12 8 24
y 3 26
Describe what the graph of the proportional relationship would look like.
O Aline passes through the point (0, 0) and continues through the point (3, 12).
O Aline passes through the point (0, 0) and continues through the point (2,8).
A line passes through the point (0, 0) and continues through the point (6, 24).
A line passes through the point (0, 0) and continues through the point (12, 3).
Question 2(Multiple Choice Worth 2 points)
(Graphing Proportional Relationships MG)
Answers
The correct answer is option D: A line passes through the point (0, 0) and continues through the point (12, 3)
For the first question:
The table shows a proportional relationship between x and y. To describe what the graph of this proportional relationship would look like, we can examine the given data points.
The data points are (12, 3), (8, 26), and (24, ?). We can observe that as x increases, y also increases. This indicates a positive correlation between the variables. Additionally, we can see that the ratio of y to x remains constant for each data point.
Now, let's analyze the answer options:
A. A line passes through the point (0, 0) and continues through the point (3, 12).
This answer option does not align with the given data because there is no data point with an x-value of 3 and a corresponding y-value of 12.
B. A line passes through the point (0, 0) and continues through the point (2, 8).
This answer option aligns with the given data because (2, 8) is a valid data point from the table, and the line passes through the origin (0, 0).
C. A line passes through the point (0, 0) and continues through the point (6, 24).
This answer option does not align with the given data because there is no data point with an x-value of 6 and a corresponding y-value of 24.
D. A line passes through the point (0, 0) and continues through the point (12, 3).
This answer option aligns with the given data because (12, 3) is a valid data point from the table, and the line passes through the origin (0, 0).
Based on the analysis, the correct answer is option D: A line passes through the point (0, 0) and continues through the point (12, 3). This accurately represents the graph of the proportional relationship given in the table.
For the second question, I'm sorry, but you didn't provide the multiple-choice options or the complete question. Could you please provide the question and options so that I can assist you further?
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Don’t worry about the one at the bottom BUT HELP MEEEEE
Answers
Answer:
e. 79/30 f. 18.2
Step-by-step explanation:
please help!! need it fast, will give brainliest!! and pls show work !!
Find the measure of angle AEB
Answers
Answer:
An acute angle
Step-by-step explanation:
An acute angle is smaller than an obtuse ad right angle.
hope this helps and hope it was right 'cause I really don't know what you meant. :)
Erasers cost 45 cents a piece. Notebooks cost 90 cents a piece . Karla spent $18 for a total of 28 erasers and notebooks . How many did she buy ?
Answers
Answer:
12 Notebooks And 16 Erasers
Step-by-step explanation:
Let x represent the number of notebooks and y represent the number of erasers. (x+y=28) Then, input the cent numbers into the equation. (90x+45y=1800) The 1800 represents the amount of dollars spent. Then simplfy the equation, which gives you 12 notebooks and 16 erasers.
8188.8
A new washing machine used 3½ gallons of water per full load to clean clothes. If Sam
washed 3% loads of clothes, how many gallons of water would be used?
Answers
Explanation: you would first convert gallons to oz. Then take that number and times it by the percentage, 3%X448=13.44 fluid ounces
what does this : mean
Answers
Answer:
Step-by-step explanation:
That character ( : ) is the 'colon" and in math it represents "ratio."
For example, "the ratio of 5 to 7" would be written 5:7
Answer:
A colon in math interpretation is usually used in ratios and ratio charts.
The colon is used in mathematics, cartography, model building, and other fields—in this context it denotes a ratio or a scale, as in 3:1.
PLEASE ANSWER THIS ILL GIVE BRAINLIEST
Answers
Answer:
sorry
Step-by-step explanation:
Student Enrollment
The enrollment at a local college has been decreasing linearly. In 2004, there where 975 students enrolled. By
2009, there were only 730 students enrolled. Determine the average rate of change of the school's enrollment
during this time period, and write a sentence explaining its meaning.
The average rate of change=
The enrollment at the college has been [Select an answer at a rate of
Select an answer v
Answers
The average rate of change of the school's enrollment during this time period is -49 students per year. This means that on average, the enrollment at the college has been decreasing by 49 students per year.
To determine the average rate of change of the school's enrollment during the given time period, we can use the formula:
Average rate of change = (Change in enrollment) / (Change in time)
The change in enrollment is calculated by subtracting the initial enrollment from the final enrollment, while the change in time is calculated by subtracting the initial year from the final year.
Given that in 2004 there were 975 students enrolled and in 2009 there were 730 students enrolled, we can calculate the change in enrollment:
Change in enrollment = 730 - 975 = -245 students
The change in time can be calculated as:
Change in time = 2009 - 2004 = 5 years
Now we can calculate the average rate of change:
Average rate of change = (-245 students) / (5 years) = -49 students per year
Therefore, the average rate of change of the school's enrollment during this time period is -49 students per year. This means that on average, the enrollment at the college has been decreasing by 49 students per year.
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IF UR GOOD IN GEOMETRY THIS QUESTION IS FOR YOU !! PLEASE HELP I SUCK AT MATH !
Answers
Answer:
(2,3 is dilated to 8,12 by a scale factor of 4)
Step-by-step explanation:
multiply 2,3 by numbers until it gets to 8,12, once you multiply by 4 you get 8,12 which means the answer is a scale factor of 4
Which expression represents the prime factorization of 108? A. 3 x 3 x 3 x 4 B. 2 x 2 x 3 x 9 C. 3 x 3 x 2 x 2 x 2 D. 3 x 3 x 3 x 2 x 2
Answers
Step-by-step explanation:
prome factorization of 108 is 3×3×3×2×2
the following frequency table shows the number of laps each of person walked for a charity event
number of laps
12
13
14
15
16
number of people
1
1
1
1
2
find the median number of laps
laps
Answers
Brayden's total earning by walking lap around a track is $35, if he walks 2+1/2 = 5/2 laps per day for 7 days.
What is earning?Earnings are the net benefits of a corporation's operation. Earnings is also the amount on which corporate tax is due. For an analysis of specific aspects of corporate operations several more specific terms are used as EBIT and EBITDA. Many alternative terms for earnings are in common use, such as income and profit.
here, we have,
Per day walking of brayden = 5/2 laps
7 days walking of brayden
= 5/2 × 7
= 35/2 laps
As per the question statement he earns $1 per lap if he walk less than 16 laps and $2 per lap if hi walks 16 or more lap.
Since the total walking of brayden is more than 16 laps, so he will earn at the rate of $2 per lap.
So total earning will be,
= 2× 35/2
= $35
Hence, Brayden's total earning by walking lap around a track is $35, if he walks 2+1/2 = 5/2 laps per day for 7 days.
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Answer:
14.5 laps
There is an even number of data points. So the median is the mean of the two middle numbers.
What is the distance from C to B
please help me
Answers
PLEASE HELP ITS MATH THANK YOUUUU
Answers
Answer:
35 : w = 1 : 2
obviously w = 70
Step-by-step explanation:
Hopefully this helps you :)
Have a nice day.
apokibunnyavatar
Restaurants charges $5 per water bottles. Hamda paid $20 for water bottles which equation can be used to find the number of water bottles hamda bought ?
Answers
Answer:
Letting x be the number of water bottles, we have:
\(5x = 20\)
3. In a Complete Sentence, How much does it cost to send a letter thatweighs 2.5 ounces? *
Answers
SOLUTION
The weight of the letter in consideration here is 2.5 ounces, and looking at the function P(w) given, it falls in the range of
\(2The corresponding cost for mailing letters that fall between that range is $2.29So if we are to put our answer in a complete sentence, it will go thus:
What is the value of x in the expression? 2(x + 3) = 8
Answers
Answer:
- 1
Step-by-step explanation:
Step 1:
2 ( x + 3 ) = 8
Step 2:
2x + 6 = 8
Step 3:
2x = - 2
Answer:
x = - 1
Hope This Helps :)
Answer:
x=1
Step-by-step explanation:
First, distribute the 2 into the parenthesis (multiply the 2 by x+3) to get:
2x+6=8
Now subtract 6 from each side to get:
2x=2
Finally, divide each side by 2:
x=1
HELP MEEEEE THIS IS DUE IN 2 HOURSSS
Answers
Suppose that for a typical FedEx package delivery, the cost of the shipment is a function of the weight of the package measured in ounces. You want to try to predict the cost of a typical shipment given package dimensions. If 10 packages in a city are sampled and the regression output is given below, what can we conclude about the slope of weight
Answers
Answer:
The answer is "Option 5"
Step-by-step explanation:
Please find the complete question in the attached file.
Throughout the above output the regression equation is:
Delivery cost \(=0.469\times weight +9.617\)
