Answer:
5.5
Step-by-step explanation:
Answer:
5.5
Step-by-step explanation:
If p→q is true and p is true, then we know q is true.
True
False
Answer:
false
Step-by-step explanation:
(b) your nullclines divide the phase plane into four regions. give a sample point in each region, and indicate for that point whether each of the populations is increasing or decreasing (by entering the word increasing or decreasing appropriate blank):
It is rising on intervals where the function points upward. When the function points downward, the intervals are decreasing.
How can we tell from the graph of the function whether it is increasing or decreasing?(i) In one area, (w, r) = (1.5, 0.5) is where worms, w, and robins, r, are both experiencing population growth.
(ii) (w, r) = (1.5, 1.5) is in a location where the number of robins, r, is rising while the number of worms, w, is declining.
(iii) In one area, (iii) (w, r) = (0.5, 1.5), the populations of worms (w), or robins (r), and robins in general are both declining.
(iv) In one area, (w, r) = (0.5, 0.5) is where worms, w, and robins, r, are both experiencing population growth.
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NOTE: The given question is incomplete on the portal. Here is the complete question.
QUESTION: Consider the equations dw/dt w - wr and dr/dt = -r + rw, which describe the interactions of robins r and worms w. Give a sample point in each region and say if that point's population is growing or shrinking (fill in the relevant blank with the phrase growing or shrinking):
(i) (w, r) = (,) is in one region, where the worm population, w, and the robin population, r, are.
(ii) (w, r) = (,) is in another region, where the worm population, w, and the robin population, r, are.
(iii) (w, r) = (,) is in a third region, where the worm population, w, and the
(iv) (w, r) = (, ) is in the fourth region, where the population of worms, w is and the population of robins, r is
What is the properties of rhombus and rectangle and square?
There are some traits that rectangles, squares, and rhombuses have in common. These are also some differences between them. Rectangles, squares, and rhombuses all have 4 sides. If a shape is a rectangle the diagonal sides will be congruent. If a shape is a square all the sides will be congruent, the shape will also have a right angle. The diaganles of a rombus are perpendicular.
ga rectangular enclosure at a zoo is 35 feet long by 18 feet wide. the zoo doubles the area of the enclosure by adding the same distance to the length and width. what are the new dimensions of the enclosure?
The new length is 35+10=45 and the new width is 18+10=28.
To Find the Area of a rectangle is length times the width.
Given that enclosure at the zoo is 35 feet long by 18 feet wide. It means the length is 35 feet and the width is 18 feet.
Area of Rectangle=Length × Width
=35×18
=630
The zoo wants to double the area of the enclosure by adding the same distance x to the length and width.
(35+x)×(18+x)=1260
630+35x+18x+x2=1260
x2+53x+630-1260=0
x2+53x-630
Now we will apply the quadratic formula we get
x=10.
The new length is 35+10=45
The new width is 18+10=28.
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2) MULTIPLE CHOICE: Find the value of y in the triangles.
A. 10/3
B. 10v2
C. 20V2
D. 106
Are undecidable problems unsolvable?
Therefore , the solution to the given problem of algorithm comes out to be it fall under the category of undecidable questions, which is a subtype of unsolvable problems.
Define algorithm.An algorithm is a process for carrying out a computation or resolving a challenge. Algorithms work as a detailed set of guidelines that lead hardware- or software-based routines through a series of predetermined actions step by step. Algorithms are frequently used in all areas of IT.
Here,
A problem is considered undecidable if there is no algorithm that can be created that will consistently return a true or false answer for each input value.
Only issues that should have a yes-or-no response (such as: does my code contain a bug?) fall under the category of undecidable questions, which is a subtype of unsolvable problems.
Therefore , the solution to the given problem of algorithm comes out to be it fall under the category of undecidable questions, which is a subtype of unsolvable problems.
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a varies jointly with b and c. a=10 b=5 and c=15. find c when a=15 and b=10
Let's begin by identifying key information given to us:
\(\begin{gathered} a\alpha bc\Rightarrow a=kbc \\ a=kbc \\ a=10,b=5,c=15 \\ \text{Substitute these into the equation, we have:} \\ 10=k\cdot5\cdot15 \\ 10=75k\Rightarrow75k=10 \\ 75k=10 \\ k=\frac{10}{75}=\frac{2}{15} \\ k=\frac{2}{15} \\ \\ When;a=15,b=10 \\ a=kbc \\ 15=\frac{2}{15}\cdot10\cdot c \\ 15=\frac{2\cdot10}{15}c \\ 15=\frac{20}{15}c \\ 15\cdot15=20c\Rightarrow225=20c \\ 20c=225 \\ c=\frac{225}{20}=11.25 \\ c=11.25 \end{gathered}\)14. Thomas is building a fence around his
garden. He made a scale drawing as
shown below.
4 cm
2 cm
Scale
1 cm: 1.5 m
What is the perimeter of the actual fence?
13
Answer:
18 meters
Step-by-step explanation:
4 cm = 6m
2cm = 3m
6x3=18
Please <3 my Answer B )
Answer:
13
Step-by-step explanation:
A shipping company handles rectangular boxes provided the sum of the height and the girth of the box does not exceed 96 in. (The girth is the perimeter of the smallest side of the box.) Find the dimensions of the box that meets this condition and has the largest volume.
The box with dimensions 16" x 16" x 32" has the largest volume and meets the given condition.
How to determine the dimension of boxTo maximize the volume of the rectangular box, you need to use the constraint that the sum of the height (h) and girth (g) does not exceed 96 inches.
Girth is the perimeter of the smallest side of the box, which can be expressed as g = 2(l + w), where l is the length and w is the width of the box.
Since h + g ≤ 96, we can rewrite the inequality as h + 2(l + w) ≤ 96.
Then, solve for h: h = 96 - 2(l + w).
The volume of the box is V = lwh.
Substitute h in the volume equation:
V = lw(96 - 2(l + w)).
To maximize the volume, use calculus by taking the partial derivatives of V with respect to l and w, and set them equal to zero.
After solving the system of equations, you'll find the dimensions l = 16 inches, w = 16 inches, and h = 32 inches.
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help, please!!!! best answer = brainliest
Answer:
By process of elimination, A is correct
Step-by-step explanation:
I got this answer by substituting the variables:
A: 14 - 5 / 3 = 14 + 1 / 5 ----- 3 equals 3!
B: 9 - 5 / 3 = 9 + 1 / 5 ----- 4/3 does not equal 10/5
C: 6 - 5 / 3 = 6 + 1 / 5 ----- 1/3 does not equal 7/5
D: -7.5 / 3 = -7.5 + 1 / 5 ----- -5/2 does not equal -4/3
What is an equation of the line that passes through the points (4, 3) and (7, 3)?
Answer:
y = mx+b
Step-by-step explanation:
m is the slope, and
b is the y-intercept
a+2a+7+4a-8Can someone please help me answer this question?
Answer:
7a - 1
Step-by-step explanation:
Subtract the numbers
+
2
+
7
+
4
−
8
a+2a+{\color{#c92786}{7}}+4a{\color{#c92786}{-8}}
a+2a+7+4a−8
+
2
−
1
+
4
Triangles 1 and 2 are both isosceles. They each have a 30 degree angle. Explain why these triangles do not have to be similar to each other?
Answer:
One triangle could have one angle at 30 degrees and the other two angles at 75 degrees, while the other triangle could have two angles that are 30 degrees and one angle that is 120 degrees, therefore making them not similar.
A frog is jumping onto a lily pad. Its height, h (in feet), is recorded at various seconds, t, in the
table below. Write an equation for the curve of best fit, then estimate the height of the frog after 6
seconds.
1
0
2
1
4.5
6
2
3
6.5
4
6
The curve of best fit is an illustration of a quadratic regression
The equation of the curve of best fit is \(y = -\frac{17}{18}x^2 + \frac{17}3x + 2\), and the height of the frog after 6 seconds is 2 feet
How to determine the equation of the curve of best fit?To determine the equation of the curve of best fit, we make use of a graphing calculator
Using the graphing calculator, we have the following calculation summary
a = -17/18b = 17/3c = 2The equation of the curve of best fit is represented as:
\(y = ax^2 + bx + c\)
Substitute the values for a, b and c.
So, we have:
\(y = -\frac{17}{18}x^2 + \frac{17}3x + 2\)
After 6 seconds, the value of x is 6.
So, we have:
\(y = -\frac{17}{18} * 6^2 + \frac{17}3 * 6 + 2\)
Evaluate
\(y = 2\)
Hence, the height of the frog after 6 seconds is 2 feet
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b) The first five terms in a different sequence are -29, -26, -21, -14, -5. Find, in terms of n, a formula for the nth term, V, of the sequence.
If \(v_n\) is the n-th term in the sequence, observe that
\(v_2 - v_1 = -26 - (-29) = 3\)
\(v_3 - v_2 = -21 - (-26) = 5\)
\(v_4 - v_3 = -14 - (-21) = 7\)
\(v_5 - v_4 = -5 - (-14) = 9\)
and if the pattern continues,
\(v_n - v_{n-1} = 2n - 1\)
so the sequence is defined recursively by
\(\begin{cases} v_1 = -29 \\ v_n = v_{n-1} + 2n - 1 & \text{for } n > 1 \end{cases}\)
By this definition,
\(v_{n-1} = v_{n-2} + 2(n-1) - 1 = v_{n-2} + 2n - 3\)
\(v_{n-2} = v_{n-3} + 2(n-2) - 1 = v_{n-3} + 2n - 5\)
and so on. Then by substitution, we have
\(v_n = v_{n-1} + 2n - 1\)
\(v_n = (v_{n-2} + 2n - 3) + 2n - 1 = v_{n-2} + 2\times2n - (1 + 3)\)
\(v_n = (v_{n-3} + 2n-5) + 2\times2n - (1 + 3) = v_{n-3} + 3\times2n - (1 + 3 + 5)\)
and if we keep doing this we'll eventually get \(v_n\) in terms of \(v_1\) to be
\(v_n = v_1 + (n-1)\times2n - (1 + 3 + 5 + \cdots + (2(n-1)-1))\)
Evaluate the sum:
Let
\(S = 1 + 3 + 5 + \cdots + (2(n-1)-1) = 1 + 3 + 5 + \cdots + (2n-3)\)
\(S' = 2 + 4 + 6 + \cdots + (2n - 2)\)
Then
\(S + S' = 1 + 2 + 3 + 4 + \cdots + (2n-3) + (2n-2) = \displaystyle \sum_{k=1}^{2n-2} k\)
Recall that
\(\displaystyle \sum_{i=1}^n i = 1 + 2 + 3 + \cdots + n = \dfrac{n(n+1)}2\)
so that
\(S + S' = \dfrac{(2n-2)(2n-1)}2\)
and
\(S' = 2 + 4 + 6 + \cdots + (2n-2) = 2 \left(1 + 2 + 3+ \cdots + (n-1)\right) = (n-1)n\)
So, we find
\(S = (S + S') - S' = \dfrac{(2n-2)(2n-1)}2 - n(n-1) = (n-1)^2\)
Then the n-th term to the sequence is
\(v_n = v_1 +2n(n-1) - S = -29 + 2n^2 - 2n - (n-1)^2 = \boxed{n^2-30}\)
If you dealt 4 cards from a shuffled deck of 52 cards without replacement, what is the probability that all 4 cards are face cards?.
The probability of getting face card in all 4 attempts is 0.0018 approximately.
What are face cards?
Any of the twelve cards in a deck with an image of a face on it is referred to as a face card. King, Queen, and Jack are the face cards in this deck.
Main Body:
Jack, Queen, and King are face cards, each of the four suits has one of each, so 12 face cards.
12/52 is the chance that the first one will be a face card.
Then it’s 11/51, 10/50, and 9/49.
And the chance for all four is thus all four multiplied together.
(12 / 52) * (11 / 51) * (10 / 50) * (9 / 49) = 0.001828
Hence the probability of getting face card on all attempt is 0.0018
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Find the equation of the tangent line to the curve y = (8 ln(x))/x at the points (1, 0) and (e, 8/e).
The equation of the tangent line to the curve are \(y=x-1 , y=\frac{xe-e^{2}+8 }{e}\).
It is required to find the solution.
What is a tangent ?A tangent is a line that touches the edge of a curve or circle at one point, but does not cross it. The tangent line to a curve at a point is that straight line that best approximates (or “clings to”) the curve near that point.
Given:
\(y=8\frac{lnx}{x} \\\\y'=8(\frac{1/x*x-lnx*1}{x^{2} } \\\\y'=\frac{1-lnx}{x^{2} }\)
Now, we find the slope of the tangent by inserting the point (1,0) into the derivative.
\(m_{tangent}=\frac{1-ln1}{1^{2} }\\\\m_{tangent}=1-0/1\\\\m_{tangent} =1\)
We can now find the equation, because we know the slope and a point (1, 0).
\(y-y_{1} =m(x-x_{1} )\\\)
y-0=1(x-1)
y=x-1
We can now find the equation, because we know the slope and a point (e, 8/e).
\(y-y_{1} =m(x-x_{1} )\\\\y-8/e=1(x-e)\\\\y=\frac{xe-e^{2}+8 }{e}\)
Therefore, the equation of the tangent line to the curve are \(y=x-1 , y=\frac{xe-e^{2}+8 }{e}\).
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If Cos A = 9/41 and tan B = 28/45 angle A and B are in quadrant I find the value of Tan(A+B)
Help me out please hurry!!
Answer:
I guess you forgot to attach something
Step-by-step explanation:
Hope it helps!!!
HELP NOW PLZZZZZ HELPPPPPPPPPPPP
Answer:
y = 4/3x -11
Step-by-step explanation:
y = -3/4 x - 8
This is in slope intercept form
y = mx+b where the slope is -3/4
We want a slope that is perpendicular
Take the negative reciprocal
-1 ( -3/4) = 4/3
The slope of the line that is perpendicular is 4/3
Using the slope intercept form of a line is
y = mx+b
y = 4/3x+b
Substituting the point into this equation
-3 = 4/3(6) +b
-3 = 8+b
Subtract 8 from each side
-3-8 = b
-11 =b
y = 4/3x -11
ILL MARK BRAINLIEST !!!!
26.
Which point on the number line represents −2/3?
Point P
Point Q
Point R
Point S
Answer:
Q
Step-by-step explanation:
it is between -1 and -2 were -2/3 would be located
A.
Calculate the expected value of X, E(X), for the given probability distribution.
x 2 4 6 8
P(X = x) 5
20
13
20
1
20
1
20
E(X) =
B. You are performing 6 independent Bernoulli trials with
p = 0.4
and
q = 0.6.
Calculate the probability of the stated outcome. Check your answer using technology. (Round your answer to five decimal places.)
At most two successes
P(X ≤ 2) =
C.
Calculate the standard deviation of X for the probability distribution. (Round your answer to two decimal places.)
x 0 1 2 3
P(X = x) 0.1 0.1 0.6 0.2
=
A) The expected value of X is 3.93.
B) The probability of at most two successes in six independent Bernoulli trials with p = 0.4 is 0.626.
C) The standard deviation of X is 0.89.
A. The expected value of a random variable is the sum of the products of each possible outcome and its probability. In the given probability distribution, we have four possible outcomes: 2, 4, 6, and 8, with respective probabilities of 5/58, 20/58, 13/58, and 20/58. We can calculate the expected value of X using the formula:
E(X) = Σ(xi * P(X = xi)), where xi represents each possible outcome.
Therefore, E(X) = (2 * 5/58) + (4 * 20/58) + (6 * 13/58) + (8 * 20/58) = 3.93
B. In Bernoulli trials, we have two possible outcomes, success or failure, with respective probabilities of p and q = 1 - p. The probability of at most two successes in six independent Bernoulli trials with p = 0.4 can be calculated using the binomial distribution formula:
P(X ≤ 2) = Σ(i=0 to 2) (6Ci * 0.4i * 0.6(6-i)), where Ci represents the combination of selecting i items from a set of six.
Therefore, P(X ≤ 2) = (6C0 * 0.40 * 0.62) + (6C1 * 0.41 * 0.61) + (6C2 * 0.42 * 0.60) = 0.626
C. The standard deviation of a probability distribution is a measure of how much the outcomes deviate from the expected value. It is calculated using the formula:
σ = √(Σ(xi - μ)2 * P(X = xi)), where μ represents the expected value.
In the given probability distribution, we have four possible outcomes with respective probabilities and deviations from the expected value:
xi 0 1 2 3
P(X=xi) 0.1 0.1 0.6 0.2
(xi - μ)2 3.24 1.44 0.04 1.44
Using the above values, we can calculate the standard deviation of X as follows:
σ = √((3.24 * 0.1) + (1.44 * 0.1) + (0.04 * 0.6) + (1.44 * 0.2)) = 0.89
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pls help it's due in an hour
Answer: A or B is your best choice
Step-by-step explanation: the last 2 are not correct because they were not real numbers stated in the question it's talking about negative numbers for X.
Answer:
Step-by-step explanation:
Let's see. The last two options don't make a whole lot of sense. The range of the graph is not all real numbers because you don't see y coordinates of the graph that are negative. The domain and range are not the same because the domain is mostly negative numbers whereas the range is just mostly positive numbers. The first option, The range of the graph is all real numbers less than or equal to 0, does not make sense because if it was less than zero, values like -5 or -100 would exist for the y coordinates. However, in this case, you can see that all of the y coordinates are positive.
Therefore, the answer is "The domain of the graph is all real numbers less than or equal to 0" or the second option.
Find the volume
of the figure below:
Step-by-step explanation:
Use Pythagorean theorem to find the base of the right triangle
221^2 = 195^2 + b^2
b = 104 km
triangle area = 1/2 base * height = 1/2 * 104 * 195 = 10140 km^2
Now multiply by the height to find volume
10140 km^2 * 15 km = 152100 km^3
pLsSsS hElP mE. iM dYiNg HeRe
Answer:
1. True
2. False
3. False
4. True
5. False
Step-by-step explanation:
Answer:
Step-by-step explanation:
1- False
2- true
3- false
4- true
5- true
(4 + 8) / 2 x 2. Help pls!!!!!!!!!!!!!!!!
Answer:
I think its 3 cus 4 +8 = 12 , 2 x 2 is 4 then 12 / 4 is 3
Step-by-step explanation:
as we have stressed, taking a single page from the u.s. census does not give a truly random sample. what specific problems could arise your sample as a result? how would using a random sample, of the same sample size, have helped overcome those problems?
A single page from the US Census may not give a truly random sample because the data may be skewed due to the way information is presented.
For example, if the page only contains data from a certain age range or gender, then this will not be representative of the population. Furthermore, if the page only contains data from a certain geographic area, then the results could be biased.
Using a random sample of the same sample size would help to overcome the problems associated with taking a single page from the US Census because it would be more representative of the population. A random sample is created by randomly selecting individuals from the population, thus ensuring that all aspects of the population are represented. This ensures that the sample is representative of the population, and not biased in any way. Furthermore, it ensures that the sample size is representative of the population, thus providing accurate results.The formula for a random sample would be:
n = total size of population
m = desired sample size
Random Sample = n x (m/n)
Where n and m are the total size of the population and the desired sample size respectively.
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the distance between single-family residences in the new desert vista subdivision in mesa is 30 feet. what is the distance known as in subdivision development terms?
The 30-foot distance between single-family residences in the Desert Vista subdivision is called a "setback" in development terms.
This setback ensures that the neighborhood maintains adequate spacing between homes for privacy, safety, and aesthetics.
The distance between single-family residences in the new Desert Vista subdivision in Mesa is known as the "setback" in subdivision development terms.
Setbacks are regulations that define the minimum distance a building, such as a single-family residence, must be located from property lines or other structures.
These regulations ensure adequate spacing between buildings for various reasons, including privacy, safety, and aesthetics.
1. The student question mentions that the distance between single-family residences in the new Desert Vista subdivision in Mesa is 30 feet.
2. In subdivision development terms, such a distance is referred to as a "setback."
3. Setbacks are important for maintaining privacy, safety, and aesthetics in a neighborhood.
4. These regulations ensure that there is enough space between buildings, preventing overcrowding and allowing for proper ventilation, sunlight, and access to emergency services.
5. Setbacks vary depending on the type of structure and local zoning laws, which determine the minimum distance required between buildings.
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anthony and cleopatra are lying dead on the floor in a villa. nearby on the floor is a broken bowl. there is no mark on either of their bodies and they were no posioned. how did they die
Anthony and Cleopatra were lying dead on the floor in a villa because they were fishes in the water bowl that might have fallen and broke down.
Since, there was a broken bowl nearby the dead bodies,
it seems like Anthony and Cleopatra were fishes who were in the water in the bowl that broke down.
Since the bowl in which the fishes were, broke down, the water of the bowl spilled and the fishes were no more in water due to which they died. This is the because there was no mark on their body and were neither poisoned.
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Imagine two line segments where each represents a slant height of the cone. The segments are on opposite sides of the cone and meet at the apex. Find the measurement of the angle formed between the line segments.
To determine the slant height of the cone, we will apply the Pythagorean theorem to the right triangle ABC.
From the Pythagorean theorem we get that:
\(AC^2=AB^2+BC^2.\)We are given that:
\(\begin{gathered} BC=6in, \\ AB=\frac{4in}{2}=2in. \end{gathered}\)Therefore:
\(AC^2=(6in)^2+(2in)^2=36in^2+4in^2.\)Finally, solving for AC, we get:
\(AC=\sqrt{40in^2}=2\sqrt{10}\text{ in.}\)Answer: \(\begin{equation*} 2\sqrt{10}\text{ in.} \end{equation*}\)