Suppose you were making a dichotomous key to identify the three types of leaves shown below. Which of the following traits could you use to classify these leaves into separate groups?
Question 3 options:
Presence or absence of veins (the lines) in the leaves.
Presence or absence of stems.
How leaves are arranged on branches.
Answers
The specification 'leaves found in deciduous forest and leaves found in tropical forest' should not be used when making this dichotomous key. It is not part of a classification system.
What is a dichotomous key?
A dichotomous key is a methodology employed by taxonomists to identify organisms from different taxonomic groups. The dichotomous keys are always funded on phenotypic traits. Dichotomous keys can be considered as two different options to identify a given feature of an organism.
Monocots are the plants having only one cotyledon or seed with only one leaf also called monocotyledons. Dicots are the plants having two cotyledons or seed with two leaves.
Monocots and dicots have few characters that make them easily recognizable such as venation pattern: The arrangement of veins in a leaf is called the venation pattern; dicots have a reticulate or network of veins type venation, while monocots have parallel venation.
Therefore, The specification 'leaves found in deciduous forest and leaves found in tropical forest' should not be used when making this dichotomous key. It is not part of a classification system.
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Related Questions
A magazine ran a sweepstakes in which prizes were listed along with the chances of winning: $1,000,000 (1 chance in 90,000,000), $100,000 (1 chance in 130,000,000), $25,000 (1 chance in 130,000,000), $5,000 (1 chance in 36,667,000), and $2,500 (1 chance in 26,500,000). Complete a and b.
a. Assuming that there is no cost to enter the sweepstakes, find the expected value of the amount won for one entry.
b. Find the expected value if the cost of entering this sweepstakes is the cost of a postage stamp (3¢).
Answers
a. To find the expected value of the amount won for one entry, we need to multiply the value of each prize by its probability of winning, and then add up the products. Using the given probabilities, we get:
Expected value = (1/90,000,000) x $1,000,000 + (1/130,000,000) x $100,000 + (1/130,000,000) x $25,000 + (1/36,667,000) x $5,000 + (1/26,500,000) x $2,500
Expected value = $0.0122
So, for one entry, the expected value of the amount won is $0.0122.
b. If the cost of entering the sweepstakes is the cost of a postage stamp, then we need to subtract the cost of entering (3¢) from the expected value calculated above. So, the new expected value is:
Expected value = $0.0122 - $0.03
Expected value = -$0.0178
This means that, on average, for each entry, a person can expect to lose about 1.78 cents. So, it's not a good idea to enter this sweepstakes if there is a cost involved.
A magazine ran a sweepstake in $0.0122 the expected value of the amount won for one entry
The expected value of the cost of entering these sweepstakes is the cost of a postage stamp $0.0178.
What is magazine?The magazine is a part of print media, The magazines are published in written and print form. The magazine page was a glossy sheet. There are many types of magazines such as sports, movies, general knowledge, professions, career, and kids magazines.
(a) Expected value = (1 ÷ 90,000,000) x $1,000,000 + (1 ÷ 130,000,000) x $100,000 + (1 ÷ 130,000,000) x $25,000 + (1 ÷ 36,667,000) x $5,000 + (1 ÷ 26,500,000) x $2,500.
Expected value = $0.0122
Magazine ran a sweepstake in $0.0122
(b) Expected value = $0.0122 - $0.03
Expected value = -$0.0178
As a result, the conclusion of the expected value (a) $0.0178 and (b) -$0.0178.
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i was asked today during drivers education what you should do if your car becomes submerged in water. what is the best thing to do in this situation.
Answers
Answer:
Stay Calm. If your car is submerged in water, panicking will only make your situation worse
Step 2: Roll Down All the Windows.
Step 3: Take Off Your Seatbelt.
Step 4: Assist Other Passengers.
Step 5: Climb through the Window and Swim to Safety.
use the sample information X =36, 0=7,n=20 to calculate the following confidence interval for u assuming the sample is from a normal population
Answers
The 90 percent confidence interval for the population mean (μ) is (33.423, 38.577).
How to calculate the valueConfidence Interval = X ± Z * (s/√n)
Where:
s is the sample standard deviation.
Given:
X = 36
s = 7
n = 20
For a 90 percent confidence level, the Z-score is 1.645 (corresponding to the 0.05/2 critical values from the standard normal distribution table).
Plugging in the values:
Confidence Interval = 36 ± 1.645 * (7/√20)
Confidence Interval = 36 ± 1.645 * (7/√20)
= 36 ± 1.645 * (7/4.472)
= 36 ± 1.645 * 1.567
= 36 ± 2.577
Therefore, the 90 percent confidence interval for the population mean (μ) is (33.423, 38.577).
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use the sample information X =36, 0=7,n=20 to calculate the following confidence interval for u assuming the sample is from a normal population (a) 90 percent confidence
Funds based on the stocks I. The market index
Answers
Answer:
Please explain the question better
Explanation:
Describe the two principles that explain how fossils form
Answers
Answer:
when a plant or animal dies in a watery environment and is buried in mud and silt. Soft tissues quickly decompose leaving the hard bones or shells behind. Over time sediment builds over the top and hardens into rock. preservation of original remains, permineralization, molds and casts, replacement, and compression.
Explanation:
Two Principles to explain how fossils form are Permineralization and molds and casts
What are Fossils?
Fossils are defined as trace remains of organisms. and the process when these fossils are preserved in a hard form is known as Fossilization.
The principles that explain the formation of fossils are
preservation of original remainspermineralizationmolds and castsReplacementcompressionPermineralization occurs when water rich in mineral from rocks seep into spaces of decayed and dead plant or animal,This leaves deposits of minerals behind which creates a cast of the organism over time.
Molds and casts occurs when sediments from rocks fill impressions created by an organism's body part eg bones. they slowly form a fossil in the actual shape of the animal bones over time.
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The data represent the time, in minutes, spent reading a political blog in a day. Construct a frequency distribution using 5 classes . In the table, include the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency?
13 18 11 18 7
19 6 10 12 7
14 17 18 6 16
18 10 1 0 15
complete the table starting with lowest class limit
class frequency midpoint r.frequency c. frequency
Answers
The class with the greatest frequency is the class "15.2 - 19" with a frequency of 7. The class with the least frequency is the class "0 - 3.8" with a frequency of 2.
To construct a frequency distribution with 5 classes for the given data representing time spent reading a political blog in a day, we need to determine the class intervals and calculate the frequency, midpoint, relative frequency, and cumulative frequency.
First, we find the range of the data:
Range = Maximum value - Minimum value
Range = 19 - 0
Range = 19
To determine the class width, we divide the range by the desired number of classes:
Class width = Range / Number of classes
Class width = 19 / 5
Class width ≈ 3.8
Now, we can construct the frequency distribution table:
Class Frequency Midpoint R. Frequency C. Frequency
0 - 3.8 2 1.9 2/20 = 0.1 2
3.8 - 7.6 4 5.7 4/20 = 0.2 6
7.6 - 11.4 4 9.5 4/20 = 0.2 10
11.4 - 15.2 3 13.3 3/20 = 0.15 13
15.2 - 19 7 17.1 7/20 = 0.35 20
By organizing the data into classes and analyzing the frequencies, we can gain insights into the distribution of reading time and identify the most and least common time intervals spent on reading the political blog.
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Which is an example of equity financing?
Answers
also known as user generated content (UGC). It refers to a variety of media content that is produced by
Individuals or a group of people working in collaboration. It is also referred to as consumer generated media (CGM) or
user created content (UCC).
Answers
Answer:
I believe it is prosumerism
Explanation:
Answer:
prosumerism
Explanation:
From an inventory of 48 new cars being shipped to local dealerships, corporate reports indicate that 12 have defective radios installed.
1. What is the probability out of the 8 new cars it just received that, when each is tested, no more than 2 of the cars have defective radios?
2. What is the probability out of the 8 new cars it just received that, when each is tested, exactly half of the cars have defective radios?
3. What is the probability out of the 8 new cars it just received that, when each is tested, none of the cars have defective radios?
4. What is the probability out of the 8 new cars it just received that, when each is tested, no more than 2 of the cars have defective radios?
5. What is the probability out of the 8 new cars it just received that, when each is tested, no more than half of the cars have non-defective radios?
Answers
Given that from an inventory of 48 new cars being shipped to local dealerships, corporate reports indicate that 12 have defective radios installed. Here, p denotes the probability of success and q denotes the probability of failure such that p + q = 1. For the given problem p=12/48=1/4, and q=1−p=3/4. Therefore,
1. The probability out of the 8 new cars it just received that when each is tested, no more than 2 of the cars have defective radios is as follows:This is a binomial probability question where n = 8, x = 0, 1 or 2.So, P(X ≤ 2) = P(X=0) + P(X=1) + P(X=2)This is calculated as follows: P(X=0) = C(8, 0) (1/4)^0 (3/4)^8 = 0.1001P(X=1) = C(8, 1) (1/4)^1 (3/4)^7 = 0.3004P(X=2) = C(8, 2) (1/4)^2 (3/4)^6 = 0.3299Therefore, P(X ≤ 2) = 0.1001 + 0.3004 + 0.3299 = 0.7304Thus, the probability is 0.7304.
2. The probability out of the 8 new cars it just received that when each is tested, exactly half of the cars have defective radios is as follows:This is a binomial probability question where n = 8, x = 4.So, P(X = 4) = C(8, 4) (1/4)^4 (3/4)^4 = 0.0865Thus, the probability is 0.0865.3.
3. The probability out of the 8 new cars it just received that when each is tested, none of the cars have defective radios is as follows:This is a binomial probability question where n = 8, x = 0.So, P(X = 0) = C(8, 0) (1/4)^0 (3/4)^8 = 0.1001Thus, the probability is 0.1001.4.
4. The probability out of the 8 new cars it just received that when each is tested, no more than 2 of the cars have defective radios is as follows:This is a binomial probability question where n = 8, x = 0, 1 or 2.So, P(X ≤ 2) = P(X=0) + P(X=1) + P(X=2)This is calculated as follows: P(X=0) = C(8, 0) (1/4)^0 (3/4)^8 = 0.1001P(X=1) = C(8, 1) (1/4)^1 (3/4)^7 = 0.3004P(X=2) = C(8, 2) (1/4)^2 (3/4)^6 = 0.3299Therefore, P(X ≤ 2) = 0.1001 + 0.3004 + 0.3299 = 0.7304Thus, the probability is 0.7304.
5. The probability out of the 8 new cars it just received that when each is tested, no more than half of the cars have non-defective radios is as follows:This is a binomial probability question where n = 8, x = 0, 1, 2, 3, or 4.So, P(X ≤ 4) = P(X=0) + P(X=1) + P(X=2) + P(X=3) + P(X=4)This is calculated as follows: P(X=0) = C(8, 0) (1/4)^0 (3/4)^8 = 0.1001P(X=1) = C(8, 1) (1/4)^1 (3/4)^7 = 0.3004P(X=2) = C(8, 2) (1/4)^2 (3/4)^6 = 0.3299P(X=3) = C(8, 3) (1/4)^3 (3/4)^5 = 0.1852P(X=4) = C(8, 4) (1/4)^4 (3/4)^4 = 0.0477Therefore, P(X ≤ 4) = 0.1001 + 0.3004 + 0.3299 + 0.1852 + 0.0477 = 1.0633Thus, the probability is 1.0633.
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You observe that price has risen, and quantity has risen. This must be because (Click to select) shifted (Click to select) . This could have been caused by (Click to select) .
Answers
Where price has risen, and quantity has risen. This must be because Demand Shifted outwards. This can be caused by an increase in consumer income.
What is Shift in Demand Curve?A demand curve shift refers to fundamental shifts in the supply-demand balance that affect the amount sought at the same price.
This might be due to a variety of factors, including a rise in income, a higher price for a replacement product, a lower price for a complementary good, and so on. Such a change is likely to have two consequences:
Increasing the equilibrium price and the equilibrium quantity.
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Spartan women were not __________. taught to read and write taught to defend themselves at an early age expected to care for their children all the time participate in athletic events
Answers
Answer: expected to care for their children all the time
Explanation: gradpoint
Spartan women were not expected to care for their children. The correct option is c.
What was the condition of spartan women?Women in Sparta were known for being independent thinkers who had greater freedom and power than women in other parts of Ancient Greece. Although they had no place in the military, female Spartans frequently attended formal schools, though not residential institutions, and separately from the boys.
In Sparta, women had more freedom than males did. Separate from the boys, they received official schooling. They received training for a variety of sports as well. These lessons were mostly designed to appeal to men. Adult women now have the freedom to manage and own property. The women of the family were not entirely exempt from domestic duties.
Therefore, the correct option is c. expected to care for their children.
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How can rock layers tell a story of mountain building
Answers
Answer:
showing the time zone the mountain was built up
Explanation:
can i get brainliest?
how did dinosaurs die (worng answers only)
Answers
Answer:
because I farted
Answer:
because of meteor................
X +y=3 and 2x +3y=-4
Answers
Answer:
x + y = 3
2x + 3y = 4
Solve equation for the variable y
y = -x + 3
Plug this in for variable y in equation
2x + 3•(-x +3) = 4
-x = -5
Solve equation for the variable x
x = 5
By now we know this much :
x = 5
y = -x+3
Use the x value to solve for y
y = -(5)+3 = -2
If a couple has 3 children, there are 8 possible outcomes for the number of boys and girls.
Let X= the number of girls. Calculate and interpret the standard deviation of the distribution. Use 1.5 for
Answers
Answer:
To calculate the standard deviation of the distribution, we first need to find the expected value of X, which is the average number of girls in the 8 possible outcomes.
Since each child can be either a boy or a girl with equal probability, there are 2^3 = 8 possible outcomes for the number of boys and girls. We can list these outcomes and the corresponding number of girls:
BBB (0 girls)
BBG (1 girl)
BGB (1 girl)
BGG (2 girls)
GBB (1 girl)
GBG (2 girls)
GGB (2 girls)
GGG (3 girls)
To find the expected value of X, we add up the number of girls in each outcome and divide by the total number of outcomes:
E(X) = (0 + 1 + 1 + 2 + 1 + 2 + 2 + 3) / 8 = 1.5
Next, we need to calculate the variance of X. The variance is the expected value of the squared deviation from the mean:
Var(X) = E[(X - E(X))^2]
We can calculate this by finding the squared deviation from the mean for each possible outcome, multiplying by the probability of that outcome, and summing over all outcomes:
Var(X) = [(0 - 1.5)^2 / 8 + (1 - 1.5)^2 / 4 + (2 - 1.5)^2 / 4 + (3 - 1.5)^2 / 8]
= 0.65625
Finally, the standard deviation is the square root of the variance:
SD(X) = sqrt(Var(X)) = sqrt(0.65625) = 0.81 (rounded to two decimal places)
Interpretation: The standard deviation of the distribution of the number of girls in a family of three children is 0.81. This means that on average, the number of girls in such families is 1.5, but the actual number of girls can vary by up to 0.81 from this average.
The expression: Can you explain how to factor out the 1/3 from 2 in detail I am having trouble.
Answers
Answer:
Explanation:
If you multiply (x - k)(x + k), you get \(x^{2} + k*x - k*x - k^{2}\) which is equal to \(x^{2} -k^{2}\). Now you can see that \(\frac{1}{3} *x^{2} - 2\) must be equal to \(\frac{1}{3}*(x^{2} - k^{2})\) which is equal to \(\frac{1}{3}*x^{2} - \frac{1}{3}*k^{2}\). Now we just need to solve \(2 = \frac{1}{3}*k^{2}\). The final answer is \(k = +- \sqrt{6}\).
Alma is paying 8% sales tax, which can also be expressed as 108% of the price. There's also a 20% discount, meaning she's paying 80% of the price, or 0.8.
Answers
Answer:
She is paying 88% or .88 of the original price.
Explanation:
Sales tax is 8%, which adds .08 to the price she is paying.
The discount is 20%, which subtracts .20 from the price she is paying.
(1.00+.08) - .20 = 1.08 - .20 = .88
.88 is the same as 88%, so she pays a total of 88% (with sales tax included).
What is one way that you will use your qualities to help you be successful in life?
- how would i answer this? help fast please
(the qualities i listed for myself are i am a helper, i am loyal, i am intelligent, i like to stay to myself, and im not very outgoing)
(and this class/subject is really called ECLR like a college prep class)
Answers
Answer:
well all good instead of i'm not out going put Im very out going and very out going and then your Good
Explanation:
The Financial Manager of Aldorf Wastoria has prepared the following flexed budget
for 2023. The Aldorf is a large hotel, which can provide up to a maximum of 22,000
guest nights per year.
Capacity
No of Guests 15,400 17,600 19,800
£ £ £
Direct Costs 231,000 264,000 297,000
Selling overhead 1,318,800 1,338,600 1,358,400
Administration overhead 900,000 900,000 900,000
Total Cost 2,449,800 2,502,600 2,555,400
Due to the recent poor weather, the Sales Manager has suggested that 15,000
guests are a more realistic target for 2023. Based on this, what are the expected
total costs for 2023?
Answers
We can do this by calculating the difference between the number of guests in each capacity level and 15,000, and then choosing the capacity level with the smallest difference.
Capacity
No of Guests 15,400 17,600 19,800
Difference from 15,000 400 2,600 4,800
From the table above, we can see that the capacity level closest to 15,000 guests is the first one, with a difference of only 400 guests.
Next, we can use the direct costs and overheads for this capacity level to calculate the expected total costs for 15,000 guests:
Direct Costs = £231,000
Selling overhead = £1,318,800
Administration overhead = £900,000
Total Costs = Direct Costs + Selling overhead + Administration overhead
Total Costs = £231,000 + £1,318,800 + £900,000
Total Costs = £2,449,800
Therefore, the expected total costs for 2023 based on the revised target of 15,000 guests is £2,449,800.
At a movie theater, an adult ticket costs $10 and
a bag of popcorn costs $6. If a group of adults
bought tickets to a movie and 4 bags of popcorn,
what expression could be used to determine
how much in total the group spent, in dollars?
A) 10x + 6, where x is the number of adults
B) 10x + 24, where x is the number of adults
C) 16x, where x is the number of adults
D) 6x +10, where x is the
number of bags of
popcorn purchased
Can I have help
Answers
Answer:
B should be your answer really hope I helps u
WHAT IS COUNT DOOKU’S HAIR COLOR
Answers
Please help!! I need to know this by today!
Answers
The answer is B. 24. This is because since 72 is 3 times 24, you also have to multiply the triangle by 3. This equals 24.
A sample of 1300 computer chips revealed that 66% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature claimed that above 63% do not fail in the first 1000 hours of their use. Is there sufficient evidence at the 0.10 level to support the company's claim? State the null and alternative hypotheses for the above scenario.
Answers
The hypothesis of the question is written below
H0: (p ≤ 0.63)
H1: (p > 0.63)
How to write the hypothesisThe hypothesis for the given scenario can be summarized as follows:
Null Hypothesis (H0): The proportion of computer chips that do not fail in the first 1000 hours of use is 63% or less. (p ≤ 0.63)
Alternative Hypothesis (Ha): The proportion of computer chips that do not fail in the first 1000 hours of use is greater than 63%. (p > 0.63)
The null hypothesis assumes that the company's claim is not supported, suggesting that the proportion of chips not failing within 1000 hours is 63% or lower. T
he alternative hypothesis counters this claim and proposes that the proportion is higher than 63%. The significance level chosen for the test is 0.10, which will be used to evaluate the evidence from the sample data.
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Ms. Adam’s is a new 3rd grade teacher. On the first day of class, after she introduced herself, she took out a large poster that read “Rules” at the top, with 20 bulleted “rules” below it. All rules began with “Do not…”. Ms. Adam’s then read over all 20 rules. By rule 10, 50% of her students lost interest and were not paying attention (i.e. looking out the window, doodling, opening and closing books on their desks, etc.). By rule 15, 90% of the class lost interest. When Ms. Adam’s finished reading all 20 rules, she noticed that some students were already breaking a few rules, many would not make eye contact with her and most ignored her when she quickly transitioned the students to the next activity- math (which had nothing to do with the rules).
Questions
1.Discuss ONE strength and ONE weaknesses of Ms. Adam’s approach. Use evidence from your reading, your own personal experiences in classrooms, and any other knowledge from prior chapters to support your answers.
Develop TWO alternatives to how Ms. Adams could have approached introducing classroom rules to the class.
Answers
Answer:
b
Explanation:
Two years ago A was thrice as old as B. Find
A. Present age of B
B. The age of A after 5 years
Answers
2. Pare most nearly means:
a, cut
b. fruit
c. two
d. umbrella
Answers
describe the scope of philosophy of education
Answers
• The scope of the philosophy of education includes the critical evaluation of aims, ideas and education, analysis of human nature, educational values, the theory of knowledge and the relationship of education and social progress.
Thus, it aims at achieving general as well as comprehensive results. SCOPE OF PHILOSOPHY OF EDUCATION The scope of philosophy of education is confined to the field of education. Thus, it is philosophy in the field of education. The scope of philosophy of education is concerned with the problems of education.
1.Sixteen cyclists were each asked the number of miles they biked last week. Their responses are given below. You will be creating a
frequency polygon of the data following the guidelines established in lecture.
Number of miles
13
6
9
20
5
18
17 4
19
12
10
6
10 13 6 14
Answers
Answer:
hi
Explanation:
measure of energy in food, specifically the measure of heat needed to raise a kilogram or a gram of water by one degree Celsius. for real nerd
Write an equation of a quadratic equation that has x-intercepts: 3, 6 and point (2, -2). (Intercept Form)
Answers
(x - 3)(x - 6) = 0
Expanding this equation gives:
x^2 - 9x + 18 = 0
Now we need to use the point (2, -2) to find the equation in intercept form.
First, substitute x = 2 and y = -2 into the standard form of a quadratic equation:
y = ax^2 + bx + c
-2 = a(2)^2 + b(2) + c
-2 = 4a + 2b + c
Next, substitute the x-intercepts into the equation:
y = a(x-3)(x-6)
We want the equation in intercept form, so we expand this equation:
y = a(x^2 - 9x + 18)
y = ax^2 - 9ax + 18a
Now we can use the three points we have to form a system of equations:
-2 = 4a + 2b + c
0 = 9a - 54a + 18a
0 = 3a
The last equation tells us that a = 0, which means the quadratic equation is a linear equation:
y = bx + c
To solve for b and c, we use the other two equations:
-2 = 4a + 2b + c
0 = 9a - 54a + 18a
Plugging in a = 0 into the first equation, we get:
-2 = 2b + c
Simplifying the second equation gives:
0 = -27a
Since a = 0, this equation is true and does not give us any new information.
We can now solve for b and c by solving the system of equations:
-2 = 2b + c
0 = -27a
Since a = 0, we can ignore the second equation and solve for b and c using the first equation:
2b + c = -2
We still have one degree of freedom, so we can choose any value for b and solve for c. Let's choose b = 1:
2(1) + c = -2
c = -4
Therefore, the equation of the quadratic function in intercept form is:
y = (x-3)(x-6)
or
y = x^2 - 9x + 18
which has x-intercepts at 3 and 6 and passes through the point (2, -2).
Jaxson walked 10 miles in 8 hours. What was his walking rate in miles per hour?
Answers
Answer:80
Explanation:
Jaxson walked 80 miles