The main difference between trigonal planar and trigonal pyramidal is in their molecular geometry and the arrangement of atoms or groups around a central atom.
In trigonal planar geometry, the central atom is surrounded by three bonding pairs of electrons, resulting in a flat, triangular arrangement. All the bond angles in a trigonal planar molecule are 120 degrees. Examples of molecules with trigonal planar geometry include boron trifluoride (BF3) and formaldehyde (CH2O).
On the other hand, in trigonal pyramidal geometry, the central atom is surrounded by three bonding pairs of electrons and one non-bonding pair (lone pair) of electrons. This arrangement leads to a three-dimensional shape resembling a pyramid, with the lone pair occupying more space than the bonding pairs. The bond angle between the three bonding pairs in a trigonal pyramidal molecule is less than 109.5 degrees due to the repulsion from the lone pair. Ammonia (NH3) and phosphine (PH3) are examples of molecules with trigonal pyramidal geometry.
In summary, the key distinction between trigonal planar and trigonal pyramidal is the presence of a lone pair of electrons on the central atom in trigonal pyramidal geometry, which gives rise to a three-dimensional pyramidal shape. Trigonal planar molecules, in contrast, lack a lone pair and exhibit a flat, triangular arrangement.
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The graph below represents the total shipping cost of x items for four different companies.
Shipping Charges
A graph has number of items on the x-axis and shipping cost in dollars on the y-axis. Line W goes through points (0, 5) and (2, 13). Line U goes through (0, 12) and (3, 16). Line Y goes through (0, 10) and (2, 12). Line Z goes through (0, 0) and (2, 4).
Which list places the companies in order from the steepest slope to the least steep slope?
Answer:
A.W, Z, U, Y
Step-by-step explanation:
I got it right on the edge quiz
Comment Cheese if your sMiLiN
Answer:
A.W, Z, U, Y
Step-by-step explanation:
i got the answer right on the quiz :)
A statistician proposed a new method for constructing a 90 percent confidence interval to estimate the median of assessed home values for homes in a large community. To test the method, the statistician will conduct a simulation by selecting 10,000 random samples of the same size from the population. For each sample, a confidence interval will be constructed using the new method. If the confidence level associated with the new method is actually 90 percent, which of the following will be captured by approximately 9000 of the confidence intervals constructed from the simulation?
(A) The Sample Mean
(B) The Sample Median
(C) The Sample Standard Division
(D) The Population mean
(E) The Population Median
The measure that will be captured by approximately 9000 of the confidence intervals is given as follows:
(E) The Population Median.
What is the interpretation of a x% confidence interval?The interpretation of a x% confidence interval is that it is x% likely that the population parameter(mean/proportion/standard deviation/median) is between a and b, which are the bounds of the confidence interval.
The bounds of the confidence interval are obtained by the estimate plus/minus the margin of error.
The measure for which the confidence intervals are calculated in this problem is given by:
Median.
The sample median for each sample is used for the estimes, and then these estimates are inferred for the population median, which is the population parameter, hence option e is correct.
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Let (sn) be a sequence that converges.(a) Show that if sn ≥ a for all but finitely many n, then lim sn ≥ a.(b) Show that if sn ≤ b for all but finitely many n, then lim sn ≤ b.(c) Conclude that if all but finitely many sn belong to [a,b], then lim sn belongs to [a, b].
(a) If sn ≥ a for all but finitely many n, then lim sn ≥ a. (b) If sn ≤ b for all but finitely many n, then limit sn ≤ b. (c) If all but finitely many sn belong to [a, b], then lim sn belongs to [a, b].
Define limit ?
In mathematics, the limit of a sequence or function represents the value that the sequence or function approaches as its input or index approaches a certain value or goes to infinity.
(a) To prove that if sn ≥ a for all but finitely many n, then lim sn ≥ a, we can use the definition of convergence.
Assume that sn ≥ a for all but finitely many n. By the definition of convergence, lim sn = L exists if, for any ε > 0, there exists N such that |sn - L| < ε for all n ≥ N.
Let's consider the case where L < a. Since sn ≥ a for all but finitely many n, there exists a large enough N such that for n ≥ N, sn ≥ a. However, this contradicts the assumption that lim sn = L, as there are values of sn greater than or equal to a for n ≥ N. Therefore, we can conclude that L cannot be less than a.
Hence, if sn ≥ a for all but finitely many n, the limit lim sn must be greater than or equal to a, i.e., lim sn ≥ a.
(b) The proof for the second statement follows a similar approach.
Assume that sn ≤ b for all but finitely many n. By the definition of convergence, lim sn = L exists if, for any ε > 0, there exists N such that |sn - L| < ε for all n ≥ N.
Let's assume that L > b. Since sn ≤ b for all but finitely many n, there exists a large enough N such that for n ≥ N, sn ≤ b. However, this contradicts the assumption that lim sn = L, as there are values of sn less than or equal to b for n ≥ N. Therefore, L cannot be greater than b.
Hence, if sn ≤ b for all but finitely many n, the limit lim sn must be less than or equal to b, i.e., lim sn ≤ b.
(c) From parts (a) and (b), we have shown that if sn ≥ a for all but finitely many n, then lim sn ≥ a, and if sn ≤ b for all but finitely many n, then lim sn ≤ b.
Now, suppose that all but finitely many sn belong to the closed interval [a, b]. This implies that sn ≥ a for all but finitely many n (since they belong to [a, b]), and sn ≤ b for all but finitely many n (since they belong to [a, b]).
From parts (a) and (b), we can conclude that lim sn ≥ a and lim sn ≤ b. Therefore, the limit of sn belongs to the closed interval [a, b].
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in how many ways can 12 graduate students be assigned to two triple and three double hotel rooms during a conference? show work. (7 points)
There are 3,997,440,000 ways to assign 12 graduate students to two triple and three double hotel rooms during a conference.
To solve the problem, we can use the concept of permutations and combinations.
First, we need to choose 2 triple hotel rooms out of the available options. This can be done in C(5, 2) ways, where C(n, r) represents the number of ways to choose r items from a set of n items without replacement. So, we have:
C(5, 2) = 5! / (2! * (5-2)!) = 10
Now, we need to assign 3 graduate students to each of the chosen triple rooms.
This can be done in P(12, 3) * P(9, 3) ways,
where P(n, r) represents the number of ways to select and arrange r items from a set of n items with replacement. So, we have:
P(12, 3) * P(9, 3) = 12! / (9! * 3!) * 9! / (6! * 3!) = 369,600
Next, we need to choose 3 double hotel rooms out of the available options. This can be done in C(3, 3) ways, which is just 1.
Now, we need to assign 2 graduate students to each of the chosen double rooms. This can be done in P(6, 2) * P(4, 2) * P(2, 2) ways, which is:
P(6, 2) * P(4, 2) * P(2, 2) = 6! / (4! * 2!) * 4! / (2! * 2!) * 2! / (1! * 1!) = 1,080
Finally, we can multiply the results of all these steps to get the total number of ways to assign the graduate students to the hotel rooms:
Total number of ways = C(5, 2) * P(12, 3) * P(9, 3) * C(3, 3) * P(6, 2) * P(4, 2) * P(2, 2)
= 10 * 369,600 * 1 * 1,080
= 3,997,440,000
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Help out please need this now
Answer:
0.2266739274
Step-by-step explanation:
[√(150 + 214.9) ] / (9.85 - 0.4)²
Jermaine wants to collect data on a baseball team. What is a statistical
question Jermaine could ask about the baseball team? Choose all the
correct answers.
How many hits occur in a game?
How many hits occur in a game?
How tall is the fastest runner on the baseball team?
How many pitches does the pitcher throw each inning?
What is the shortest distance a ball must travel for a home run?
What is the difference between the most runs and the fewest runs the team scores in
a game?
a rectangle has width that is 2 feet less than the length the arrea of the rectangle is 80 square feet find the dimensions of the rectangle
The dimensions of the rectangle are 10 feet (length) and 8 feet (width).
To find the dimensions of the rectangle with an area of 80 square feet and a width that is 2 feet less than the length,
follow these steps:
1. Let the length of the rectangle be L feet and the width be W feet.
2. According to the given information, W = L - 2.
3. The area of a rectangle is calculated by multiplying its length and width: Area = L × W.
4. Substitute the given area and the relationship between L and W into the equation: 80 = L × (L - 2).
5. Solve the quadratic equation: 80 = L² - 2L.
6. Rearrange the equation: L² - 2L - 80 = 0.
7. Factor the equation: (L - 10)(L + 8) = 0.
8. Solve for L: L = 10 or L = -8 (since the length cannot be negative, L = 10).
9. Substitute L back into the equation for W: W = 10 - 2 = 8.
So, the dimensions of the rectangle are 10 feet (length) and 8 feet (width).
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If u=18, x=−10, and y=8 what is the value of u+xy?
Answer:
u+xy=18+(-10)8
=18-80
= -62
jeremy spends 3/4 of his check on paying bills and 15% on food if jeremy makes 500 $ how much money will he save
answer choices:
A. 375$
B. 50$
C. 125$
D. 85$
Write the standard form of the equation of the line described.
through: (2,-5), parallel to y=4x+5
The standard form of the equation of the line described is 4x - y = 18.
To find the equation of a line parallel to y = 4x + 5, we know that parallel lines have the same slope. The given line has a slope of 4 since it is in the form y = mx + b, where m represents the slope. Therefore, our parallel line will also have a slope of 4.
Using the point-slope form of a linear equation, we can write the equation as follows:
y - y₁ = m(x - x₁)
Substituting the coordinates of the given point (2, -5) and the slope (4) into the equation, we have:
y - (-5) = 4(x - 2)
Simplifying the equation, we get:
y + 5 = 4x - 8
Rearranging the terms to put the equation in standard form, we have:
4x - y = 18
Therefore, the standard form of the equation of the line described, which passes through the point (2, -5) and is parallel to y = 4x + 5, is 4x - y = 18.
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Len and Kris had dinner in a restaurant. The dinner bill was $18.50.They had to pay a 5% food tax and they left a 15% tip for the waiter.What was the total amount they paid for dinner that night?a. $22.20b. $3.70c. $22d. $22.70
The total amount they paid for dinner that night = $22.2
Explanation:Dinner bill = $18.50
They paid 5% food tax
Food tax = (5/100) x 18.50
Food tax = $0.925
They left a 15% tip for the waiter
Tip = (15/100) x 18.50
Tip = $2.775
Total amount paid = Dinner bill + Food tax + Tip
Total amount paid = $18.50 + $0.925 + $2.775
Total amount paid = $22.2
The total amount they paid for dinner that night = $22.2
Samantha constructs a scatter plot. She realizes that she needs to add one more point, which will be an outlier. Which of the ordered pairs does she still need to plot?
Responses
(8,6)
(10,14)
(19,9)
(4,15)
Answer:(8,6)
Step-by-step explanation:
in this fulcrum, the weights are perfectly balanced. how far must the fulcrum be located from the 40 lb. weight if the bar is 9 feet long?
The distance of 40 lb will be 5ft, according to the question.
What do you mean by distance?
Distance is the sum of an object's movements, regardless of direction. Distance can be defined as the amount of space an object has covered, regardless of its starting or ending position.
According to the given question,
We have the given information:
The fulcrum be located from the 40 lb.
The weight of bar is 9ft long.
Now, we will calculate the distance,
40x = 50(x-1)
40x = 50x - 50
40x - 50x = -50
-10x = -50
x = 5
Therefore, the required answer is 5ft.
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There are currently 4 people signed up to play on a baseball team. The team must have at least 9 players. Which of the following graphs includes the possible values for the number of people who still need to sign up for the team? (4 points) Number line with closed circle on 5 and shading to the left Number line with closed circle on 5 and shading to the right. Number line with open circle on 5 and shading to the left. Number line with open circle on 5 and shading to the right.
How do you find the largest and smallest number in an array of 1 100?
The simplest solution for this problem is to traverse the entire array and store the minimum and maximum values.
C++ implementation for the following problem
#include <iostream>
int main(){
int arr[] = {1,2,3,4,5,6,7,8,9...........................99,100}; //initialize array
int min = arr[0]; //start value
int max= arr[0]; //start value
for(int i:arr) {
if(i<min) min=i; // if current number lower update min
if(i>max) max=i; // if current number bigger update max
}
std::cout<<"Min Value: "<<min<<"\nMax Value: "<<max<<"\n";
return 0;
}
The simplest solution for this problem is to traverse the entire array and store the minimum and maximum values.
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Find the common ratio of the geometric sequence
-15, -30, -60, ....
Answer:
2
Step-by-step explanation:
common ratio r=an/an-1
=-30/-15 =2
How many solutions?
2x + 6 = 3(x + 2) - x
Answer:
2x = 2x
Step-by-step explanation:
2x + 6 = 3x + 6 - x
2x = 3x - x(cancel equal terms)
2x=2x
help will give brainliest
Answer: the answer is line 2
Step-by-step explanation:
Solve for x.
9^6 = x^3 x 9^3
Answer:9
Step-by-step explanation:
I'm assuming the equation is : \(9^{6}\)=\(x^{3}\)*\(9^{3}\)
1) \(9^{6}\)=531441
\(9^{3}\) =729
2) 531441=729 \(x^{3}\)
3) \(\frac{531441}{729}\)= \(x^{3}\)
4)729=\(x^{3}\)
5) \(\sqrt[3]{729}\) =\(\sqrt{x}\)^3
6) 9=x
a mixture of 3% disinfectant solution is to be made from 8% and 2% disinfectant solutions. how much of each solution should be used if 24 gallons of 3% solution are needed?
Solution should be used for given requirement is x = 4 gallons and y = 20 gallons.
We are having a certain amount of disinfectant solutions as given below,
This is just a system of two equations in two unknown quantities.
x = number gallons 8% solution
y = number gallons 2% solution
The required equation in the number of gallons;
x + y = 24 → (I)
The equation in concentration;
0.08x + 0.02y = 0.03(24) → (II)
If we multiply the concentration equation by 100 to get rid of the decimals.
8x + 2y = 72 → (III)
There is a number you can solve this then, If we multiply the number of gallons equation by 3, we get;
3x + 3y = 72 → (IV)
Subtract the number of gallons result from the concentration result and get;
5x = y
From (I);
x + 5x = 24
6x = 24
x = 4 and y = 20
So, solution should be used for given requirement is x = 4 gallons and y = 20.
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which of the following rational functions is graphed below?
Therefore , the solution of the given problem of graph comes out to be the new function f(x), f(x) = 1/x-1 .
Explain graph.Mathematicians use graphs to variable logically depict or chart sentences or values in a visual way. Usually, a graph point shows the connection between two or more objects. A graph is a particular kind of non-linear side chain up of parts known as nodes as well as lines. The borders, also referred to as nodes, should be joined together with glue. The node numbers in this graph are 1, 2, 3, and 5.
Here,
It is written as g(x) = f. (2x)
The function g(x) demonstrates that it is the change of the f. (x).
The following is how change is applied:
x → 2x (x is substituted by the twice of it) (x is replaced by the twice of it) (X is substituted with twice of it.)
=> f(x) (x)
=> f(2x) (2x)
=> f(2x) = 1/x-1
The function will be squashed or stretched vertically depending on the component it is multiplied by when it is positive.
Due to this, the new function g(x), which is equivalent to f(2x), will grow or shrink by a factor of 2.
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Ms. murphy has to select 4 swimmers out of 9 swimmers to create a relay team. in how many ways can she create a relay team?
Ms. murphy has to create a relay team in 3024 ways.
What is combination?
A combination is a collection of components produced under a certain set of constraints and conditions.
Selections are another name for combinations. The choice of items from a predetermined group of items corresponds to combinations. We don't want to organize anything here. We are going to choose them. We use the symbols n C r to represent the number of distinct r-selections or combinations among a set of n items.
As given, Ms murphy has to select 4 swimmers out of 9 swimmers to create a relay team.
By using the combination formula we can find the number of ways to create a relay team.
\(C^{n}_r = \frac{n!}{(n-r)!}\)
Where,
n is the number of all objects and r is a number of selected objects.
Here, n = 9 and r = 4.
So,
\(C^{9}_4 = \frac{9!}{(9-4)!} = \frac{9!}{5!} = \frac{x}{y} = 3024\)
Therefore, she create a relay team in 3024 ways.
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Which values are areas of cross sections that are parallel to a face of this right rectangular prism?
480 square units
120 square units
80 square units
24 square units
The value is 24 square units is parallel to the face of the right rectangular prism.
We can see that the face of the given rectangular prism shows a width 4 and a height of 6. If we cut the figure at any point along the length 20, such that the cross-section is parallel to the face, the cross-section, which occurs at x length, will always have the same dimensions, which are 4 and 6.
So the area of the cross-section which is parallel to the face of the given rectangular prism is given by:
A = 6 × 4
A = 24
Thus, the value is 24 square units is parallel to the face of the right rectangular prism.
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A = 6 × 4
A = 24
Thus, the value is 24 square units is parallel to the face of the right rectangular prism.
whoever gets this corrects gets brainliest!!!
Answer:
d
Step-by-step explanation:
the submarine is below water so that's considered a negative and the number in the equation is negative 3. and if you keep multiplying a positive by a negative the number stays negative and thats the submarine getting deeper and deeper into the ocean if that makes sense.
At the sewing store, Brooke bought a bag of mixed buttons. The bag included 76 buttons, of which 75% were large. How many large buttons did Brooke get?
Answer:
57
Step-by-step explanation:
75/100 *76
5700/100 =57
Several friends (Calvin, Dean, Kelli, and Lee) went to Cal's Late Night Diner for a bite to eat. Match each person to their drink (Iced tea, Lemonade, Root Beer, and Water) and determine how much each paid ($4.99, $5.99, $6.99, and $7.99) for their meal.
Clues:
1. The Diner who paid $4.99 was either Calvin or the one who got the Root Beer.
2. Kelli paid $6.99
3. The one who got the water paid 1 dollar less than Dean.
4. Calvin paid more than Lee.
5. The one who got the Root beer paid 1 dollar less than the one who got the Iced Tea.
Based on the given clues, we can determine the person, drink, and price paid for each individual:
Calvin: Root Beer, $4.99
Dean: Lemonade, $7.99
Kelli: Water, $6.99
Lee: Iced Tea, $5.99
How to determine how much each friends paidFrom clue 1, we know that either Calvin or the person who got the Root Beer paid $4.99. Since Calvin paid more than Lee according to clue 4, Calvin cannot be the one who got the Root Beer. Therefore, Calvin paid $4.99.
From clue 2, Kelli paid $6.99.
From clue 3, the person who got the water paid $1 less than Dean. Since Dean paid the highest price, the person who got the water paid $1 less, which means Lee paid $5.99.
From clue 5, the person who got the Root Beer paid $1 less than the person who got the Iced Tea. Since Calvin got the Root Beer, Lee must have gotten the Iced Tea.
Therefore, the final assignments are:
Calvin: Root Beer, $4.99
Dean: Lemonade, $7.99
Kelli: Water, $6.99
Lee: Iced Tea, $5.99
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6.
The difference between two even numbers is positive.
Answer:
Consecutive par .. 2,4,6,8 .....
positive difference between 6 and 8
8-6 = 2; this difference will always be 2 regardless of the number if it is consecutive even.
Step-by-step explanation:
A store in Wildgrove purchased an antique pull toy at a cost of $890 and marked it up 200%. Later on, Jeffrey bought the antique pull toy. If the sales tax in Wildgrove is 10%, how much did he pay in all?
Answer: Jeffery paid $ 2937 in all.
Step-by-step explanation:
Given: The cost of antique pull = $890
Mark up percentage = 200%
New price = (cost) + (Mark up percentage) x (cost)
\(=\$( 890+\dfrac{200}{100}\times890)\\\\=\$( 890+2(890))\\\\=\$2670\)
After a tax of 10% , the amount needs to be paid = New price + 10% of New price
\(=\$(2670+\dfrac{10}{100}\times2670)=\$(2670+267)\\\\=\$2937\)
Hence, Jeffery paid $ 2937 in all.
Help plis! Need process too
Answer:
Step-by-step explanation:
E
HELP THIS IS DUE TOMORROW!!!!
Answer:
The answer is 1,136
Answer:
20/89
Step-by-step explanation:
The question wants the student from Gryffindor. So we will take the total of the Gryffindor student only is 178
Then they want the student who has owl then is 40.
So you use 40/178
And get the simple fraction 20/89