A barracuda swam directly toward a coral reef at a speed of 9.6 seconds. It swam 72 meters. so its speed was 7.5m/s.
What is speed?Speed can be calculated as the ratio of distance traveled to the time taken.
Speed = Distance/ time taken
A barracuda swam directly toward a coral reef at a constant velocity for 9.6 seconds. It swam 72 meters in that time.
Distance = 72 meters
Time taken = 9.6 seconds
So,
Speed = Distance/ time taken
Speed = 72/ 9.6
= 720/ 96
= 7.5m/s
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Evaluate express your answer in exact simplest form9P4=
The formula for Permutation is,
\(^nP_r=\frac{n!}{\left(n-r\right)!}\)The expression given is,
\(^9P_4\)Given:
\(n=9,r=4\)Plug in n = 9, r = 4
\(\frac{9!}{\left(9-4\right)!}\)Simplify
\(\frac{9!}{5!}=\frac{9\times8\times7\times6\times5!}{5!}=9\times8\times7\times6=3024\)Hence, the answer is 3,024.
WILL GIVE BRAINLIEST IF CORRECT
Answer:
la respuesta correcta es laC
han ku po ammo paumahin
if you don’t help I could possibly die.
Question 12. [10 Marks] For each of the following, determine whether it is valid or invalid. If valid then give a proof. If invalid then give a counter example. (a) BNC ≤A → (CA) n (B - A) is empty
(b) (AUB) - (An B) = A → B is empty
a) The statement BNC ≤ A → (CA) ∩ (B - A) is empty is valid.
b) The statement (A ∪ B) - (A ∩ B) = A → B is empty is invalid.
a) The statement BNC ≤ A → (CA) ∩ (B - A) is empty is valid. To prove its validity, we can use a direct proof.
Proof:
Assume BNC ≤ A. We want to show that (CA) ∩ (B - A) is empty.
Let x be an arbitrary element in (CA) ∩ (B - A). This means x is in both CA and (B - A).
Since x is in CA, it implies that x is in C and x is in A.
Since x is in (B - A), it implies that x is in B but not in A.
Therefore, we have a contradiction because x cannot be both in A and not in A simultaneously.
Hence, the assumption BNC ≤ A must be false, which means BNC > A.
Therefore, the statement BNC ≤ A → (CA) ∩ (B - A) is empty is valid.
b) The statement (A ∪ B) - (A ∩ B) = A → B is empty is invalid. To show its invalidity, we can provide a counterexample.
Counterexample:
Let A = {1, 2} and B = {2, 3}.
(A ∪ B) - (A ∩ B) = {1, 2, 3} - {2} = {1, 3}
However, A = {1, 2} is not empty, but B = {3} is not empty.
Therefore, the statement (A ∪ B) - (A ∩ B) = A → B is empty is invalid.
In summary:
a) The statement BNC ≤ A → (CA) ∩ (B - A) is empty is valid, proven by a direct proof.
b) The statement (A ∪ B) - (A ∩ B) = A → B is empty is invalid, as shown by a counterexample.
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a) The statement BNC ≤ A → (CA) ∩ (B - A) is empty is valid.
b) The statement (A ∪ B) - (A ∩ B) = A → B is empty is invalid.
a) The statement BNC ≤ A → (CA) ∩ (B - A) is empty is valid. To prove its validity, we can use a direct proof.
Assume BNC ≤ A. We want to show that (CA) ∩ (B - A) is empty.
Let x be an arbitrary element in (CA) ∩ (B - A). This means x is in both CA and (B - A).
Since x is in CA, it implies that x is in C and x is in A.
Since x is in (B - A), it implies that x is in B but not in A.
Therefore, we have a contradiction because x cannot be both in A and not in A simultaneously.
Hence, the assumption BNC ≤ A must be false, which means BNC > A.
Therefore, the statement BNC ≤ A → (CA) ∩ (B - A) is empty is valid.
b) The statement (A ∪ B) - (A ∩ B) = A → B is empty is invalid. To show its invalidity, we can provide a counterexample.
Counterexample:
Let A = {1, 2} and B = {2, 3}.
(A ∪ B) - (A ∩ B) = {1, 2, 3} - {2} = {1, 3}
However, A = {1, 2} is not empty, but B = {3} is not empty.
Therefore, the statement (A ∪ B) - (A ∩ B) = A → B is empty is invalid.
In summary:
a) The statement BNC ≤ A → (CA) ∩ (B - A) is empty is valid, proven by a direct proof.
b) The statement (A ∪ B) - (A ∩ B) = A → B is empty is invalid, as shown by a counterexample.
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what is the product of 3 and 57 explain your thinking
Answer:
3*57=171
Step-by-step explanation:
Answer:
171
Step-by-step explanation:
Well, 3 x 50 is 150 and 3 x 7 is 21 and 150 + 21 = 171
What is the definition of "constant of proportionality"? Define or show an expression to prove your answer
Answer:
The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate.
(G o o g l e)
Step-by-step explanation:
I hope this helps!
4. What is the rate of change of the linear function that has a graph that passes
through the points (-1, 3) and (-2,-4)?
The rate of change of the function that has a graph that passes
through the points (-1, 3) and (-2,-4) is slope and is equal to 7.
The slope of a line is outlined because the amendment in y coordinate with relevancy the amendment in x coordinate of that line. cyber web amendment in y coordinate is Δy, whereas cyber web amendment within the x coordinate is Δx. The slope of a line is calculated victimisation 2 points lying on the line. Given the coordinates of the 2 points, we are able to apply the slope of line formula m = y₂ - y₁ / x₂ - x₁ where (x₁ ,y₁) are the coordinate of first point and (x₂ ,y₂) are the coordinate of second point.We have given two points (-1, 3) and (-2,-4) .
Rate of change of graph is given by slope
Using slope formula , we get
m = -4 - 3 / -2 - (-1)
m = -7 / -2 + 1
m = -7 / -1
m = 7
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After placing an equation into his calculator Rob got the following table. He then determents the x=6 when f(x)=-4 Is he correct Explain
Answer:
no
Step-by-step explanation:
From the table
when f(x) = - 4, then x = 2
Please help needed ASAP
Given the action of the change in demand for Margarine ''increase in quantity demanded'' is the reaction of producers in the margarine market to the new equilibrium price.
How does marginal value pricing work?The worth of the final unit of consumption to a consumer is known as marginal value. An industry demand curve measures the value of a commodity to the consumer who purchased it but later receives the lowest value from consumption.
The reaction of the producers in the margarine market to the new equilibrium price, following the change in demand for margarine, will depend on the size and direction of the change in price. If the new equilibrium price is higher than the previous one, then producers will increase production to take advantage of the higher price. On the other hand, if the new equilibrium price is lower than the previous one, then producers will reduce production to avoid losses.
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The complete question is: Given the action of the change in demand for margarine, what is the reaction of the producers in the margarine market to the new equilibrium price?
a. Increase in quantity demanded
b. Increase in demand.
c. Increase in quantity supplied
d. Increase in supply.
Jane buys 3 magnets and 9 bookmarks at a craft fair. The magnets cost $5 each, and the bookmarks cost $2 each. Which equations can be used to find how many dollars, d, Jane spends at the craft fair? Choose all the correct answers.
Answer:
Choice A and C
Step-by-step explanation:
If 1 magnet costs $5, then 3 magnets cost $15 because adding 3 magnets to your bag, would equal to 5+5+5, or 5x3. If 1 bookmark cost $2, then 9 bookmarks would cost $18 to your bag, which would equal 9+9, or 9x2.
So, C is correct because 5x3 is 15, and 2x9 is 18. A is also correct because it's just the other way around, 2x9=18 and 5x3=15.
Please answer correctly !!!!!!!!! Will mark brainliest answer !!!!!!!!!!!!
Answer:
I think that C) and D)
Step-by-step explanation:
I think this because if you look at 3.5 secounds it came down and after 1.75 secounds the ball hit the ground. A) wouldn't be because it came down at 3.5 secounds not coming up. B) wouldn't be because the ball droped after 1.75 secounds not come up.
The equation of a line is 5x + 10y = 15
Answer:
c
Step-by-step explanation:
I don't think I understand this one try graphs n diagram
1. (0101)
2
=()10 2. (128)
8
=()
10
3. (AC)
16
=()
10
4. (43)
8
=()
2
5. (F4)
16
=()
2
6. (121)
10
=()
2
7. X=1010111,Y=1010011,X+Y= ? 8. X=0010101,Y=01001010,X+Y= ?
Let's solve the given conversion and addition problems.
1. (0101)₂ = (10)₂
The binary number (0101)₂ is equivalent to the decimal number (10)₂.
2. (128)₈ = (88)₁₀
The octal number (128)₈ is equivalent to the decimal number (88)₁₀.
3. (AC)₁₆ = (172)₁₀
The hexadecimal number (AC)₁₆ is equivalent to the decimal number (172)₁₀.
4. (43)₈ = (100011)₂
The octal number (43)₈ is equivalent to the binary number (100011)₂.
5. (F4)₁₆ = (11110100)₂
The hexadecimal number (F4)₁₆ is equivalent to the binary number (11110100)₂.
6. (121)₁₀ = (1111001)₂
The decimal number (121)₁₀ is equivalent to the binary number (1111001)₂.
7. X = 1010111, Y = 1010011, X + Y = 1010111 + 1010011 = 10111010
Performing binary addition on X and Y, we get the sum (10111010).
8. X = 0010101, Y = 01001010, X + Y = 0010101 + 01001010 = 01011111
Performing binary addition on X and Y, we get the sum (01011111).
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Find the equation of locus of a point which moves so that
1. Its distance from X-axis is always 4 units.
Answer:
Given,
Moving point =P(x,y)
Fixed point = Q(x,0)
PQ = 4 units
now,
PQ² = (x-x)² + (y-0)²
or, 4² = 0² + y²
or, 16 = y²
or, √16 = y
∴ y = ±4
The equation of the locus of the moving point that maintains a distance of 4 units from the X-axis is y = ±4, representing two parallel horizontal lines.
To find the equation of the locus of a point that always maintains a distance of 4 units from the X-axis, let's analyze the given information.
Let P(x, y) be the moving point and Q(x, 0) be the fixed point on the X-axis. The distance between P and Q is denoted by PQ. According to the problem, PQ is always 4 units.
Using the distance formula, we have:
PQ² = (x - x)² + (y - 0)²
Since the x-coordinate of both P and Q is the same (x - x = 0), the equation simplifies to:
PQ² = y²
Substituting the value of PQ as 4 units:
4² = y²
16 = y²
Taking the square root of both sides:
\(\sqrt{16 } = \sqrt{y^2}\)
±4 = y
Therefore, the y-coordinate of the moving point P can be either positive or negative 4, giving us two possible solutions for the y-coordinate.
Hence, the locus of the moving point P that maintains a distance of 4 units from the X-axis is given by the equation:
y = ±4
This equation represents two horizontal lines parallel to the X-axis, with y-coordinates at +4 and -4. Any point (x, y) on these lines will always be at a constant distance of 4 units from the X-axis.
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A group of 3 friends went to a movie. They paid $15 for a bucket of popcorn. All the
movie tickets were the same price. They paid $51.75 total. Which equation represents
the cost of the tickets?
Answer:
51.75- 15= 36.75
36.75/3= 12.25 per ticket
Answer:
51.75 - 15 / 3
Step-by-step explanation:
$15 for a bucket of popcorn is separate from the tickets, so you subtract that from the sum.
Then you should have 36.75.
36.75 / 3 = 12.25
I hope this helped!
Stay safe! <3
In which quadrant would the point (3.6, - 4 2/3) be located?
Answer:
3 because of the negative relations
Answer:
Quadrant 4
Hope this works! :)
a company buys equal numbers of two different card forms. it utilizes 4/5 of one kind and 6/7 of the other. what fraction of the total number is unused?
12/35 fraction of the total number is unused from two different cards.
What is a fraction?A fraction is written in the form of p/q, where q ≠ 0.
Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.
Assuming the total first kind of card form is 1 and the total second kind of card form is also one.
Given, a company buys equal numbers of two different card forms. it utilizes 4/5 of one kind and 6/7 of the other.
∴ The total unused card form is,
= (1 + 1) - (4/5 + 6/7).
= 2 - (28 + 30)/35.
= 2 - 58/35.
= (70 - 58)/35.
= 12/35.
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determine the slope given the two points. (-19,4) (17,11) PLEASE SHOW WORK
Answer:
m=7/36
Step-by-step explanation:
we need two points in order to find the ratio of the change in y and change in x, which is the slope
m=(y-y1)/(x-x1) (you can choose any point as y1 but be careful that you use the corresponding x1 value in the denominator)
m=(11-4)/(17-(-19))
m=7/36
Find ℒ{f(t)} by first using a trigonometric identity. (Write your answer as a function of s.)
f(t) = cos²(t)
The Laplace transform of f(t) = cos²(t) is:
ℒ{f(t)} = (1 + s²) / (2s(s² + 4)).
To find the Laplace transform of f(t) = cos²(t), we can use the trigonometric identity:
cos²(t) = 1/2 (1 + cos(2t))
Applying this identity, we have:
ℒ{f(t)} = ℒ{1/2 (1 + cos(2t))}
Using the linearity property of the Laplace transform, we can split the transform of the sum into the sum of the transforms:
ℒ{f(t)} = 1/2 ℒ{1} + 1/2 ℒ{cos(2t)}
Now, we need to find the Laplace transforms of the individual terms.
The Laplace transform of the constant term 1 is:
ℒ{1} = 1/s
The Laplace transform of cos(2t) can be found using the property:
ℒ{cos(at)} = s / (s² + a²)
For our case, a = 2, so we have:
ℒ{cos(2t)} = s / (s² + 2²)
= s / (s² + 4)
Putting it all together, we have:
ℒ{f(t)} = 1/2 ℒ{1} + 1/2 ℒ{cos(2t)}
= 1/2 * (1/s) + 1/2 * (s / (s² + 4))
= 1/2s + s / (2s² + 8)
= (1 + s²) / (2s(s² + 4))
Hence, the Laplace transform of f(t) = cos²(t) is:
ℒ{f(t)} = (1 + s²) / (2s(s² + 4)).
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What is the answer ?
Answer:
A.
Step-by-step explanation:
using FIOL (first, inner, outer, last) to factor
Use the given information to find the equation of the quadratic function. Write the function in standard form f(x) ax² + bx + c.
The zeros of the function are x = 8 and x = -2. Use the fact that f(2)=-72 to find a.
f(x)=
The equation of the quadratic function is: f(x) = 3x² - 18x - 48
To find the equation of a quadratic function in standard form, we need to use the zeros of the function and one additional point.
Given that the zeros are x = 8 and x = -2, we can write the equation in factored form as:
f(x) = a(x - 8)(x + 2)
To find the value of "a," we can use the fact that f(2) = -72.
Substituting x = 2 into the equation, we have:
-72 = a(2 - 8)(2 + 2)
Simplifying, we get:
-72 = a(-6)(4)
-72 = -24a
Dividing both sides by -24, we find:
3 = a
Now that we know the value of "a," we can rewrite the equation in standard form:
f(x) = 3(x - 8)(x + 2)
So, the equation of the quadratic function is:
f(x) = 3x² - 18x - 48
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Help me, witch are the true!!!?
Answer:
A is the answer hope this helps
If the distance of P x, y from the points A (3, 6) and B −3, 4 are equal, prove that
3x + y = 5
Answer:
See Below.
Step-by-step explanation:
We are given a point P(x, y). It is equidistant from A(3, 6) and B(-3, 4).
So, let's first determine the distance from P to each point. We can use the distance formula:
\(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
Segment PA:
We will let P(x, y) be (x₂, y₂) and A(3, 6) be (x₁, y₁). By substitution:
\(d=\sqrt{(x-3)^2+(y-6)^2\)
This represents the distance from P to A.
Segment PB:
Again, we will let P(x, y) be (x₂, y₂) and B(-3, 4) be (x₁, y₁). By the distance formula:
\(d=\sqrt{(x-(-3))^2+(y-4)^2}\)
We may simplify:
\(d=\sqrt{(x+3)^2+(y-4)^2}\)
Now, we know that the two distances are equivalent. Hence:
\(\sqrt{(x-3)^2+(y-6)^2}=\sqrt{(x+3)^2+(y-4)^2\)
Simplify. Square both sides:
\((x-3)^2+(y-6)^2=(x+3)^2+(y-4)^2\)
Square:
\((x^2-6x+9)+(y^2-12x+36)=(x^2+6x+9)+(y^2-8x+16)\)
Subtract all terms from the right:
\((x^2-6x+9)-(x^2+6x+9)+(y^2-12x+36)-(y^2-8x+16)=0\)
Distribute the negative:
\([(x^2-6x+9)+(-x^2-6x-9)]+[(y^2-12y+36)+(-y^2+8y-16)]=0\)
Rearrange:
\([(x^2-x^2)+(-6x-6x)+(9-9)]+[(y^2-y^2)+(-12y+8y)+(36-16)]=0\)
Combine like terms;
\((-12x)+(-4y)+(20)=0\)
We can divide both sides by -4:
\(3x+y-5=0\)
Finally, adding 5 to both sides produces:
\(3x+y=5\)
which of the following is considered diversity? select one: a. life experiences b. educational background c. where someone is from d. how old someone is e. all of these
Diversity encompasses multiple dimensions such as life experiences, educational background, geographic origin, and age that is option E.
Diversity encompasses a range of factors including life experiences, educational background, geographic origin, and age. It goes beyond a single dimension and encompasses various aspects that contribute to differences among individuals. By embracing diversity in all its forms, organizations and communities can benefit from a wider range of perspectives, ideas, and talents.
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Geometry, dont need explanation. Just those 3 questions.
Answer:
1. B
2. A
3. C
Step-by-step explanation:
A bag contains 3 red marbles, 4 blue marbles, and 2 yellow marbles. What is the probability of pulling out a blue marble?
Probability of pulling out the Blue Marbels = 4/9
Step-by-step explanation:
Red Marbels = 3
Blue Marbels = 4
Yellow Marbels = 2
Total Marbels = 9
P( Blue Marbels) = Number of favorable outcomes/Total number of possible outcomes = 4/9
when 3+3x-5-8x is simplified, the result is?
Answer:
−5x−2
Step-by-step explanation:
BRAINLIEST IF CORRECT: The value of an inverse variation function is equal to 8 when the independent variable is equal to − 1/2 . Find the constant of variation and identify the quadrants in which the graph is located.
The constant of variation is -4 and the quadrants in which the graph is located is the fourth quadrant.
What is the Value of the Inverse Function?
An inverse function is a function that undoes the action of the another function.
A direct variation's constant of variation is the constant ratio of two variables.
The constant product between two variables represents a variation that is indirect.
Given that;
Inverse variation function = 8
Independent variable = -½
To find constant of variation, we know that;
For an inverse function
y = k/x
k = x × y
Plugging in the relevant values gives;
k = 8 × -½
k = - 4
Thus, the constant of variation is -4.
Also, the minus sign indicates that the constant of variation lies in the 4th quadrant of the graph.
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Answer:
Quadrants 2 & 4
K=-4
Triangle XYZ was dilated using the rule DO,0.25 (x, y) → (0.25x, 0.25y). The image is shown in the diagram. What are the coordinates of Z of the pre-image?
Answer:
A: -8-4
Step-by-step explanation:
Answer:
I think it is (-8,-4).
Step-by-step explanation:
I hope this helps.
Solve for y at x=2: (x5 + 3y) dx - x dy=0; x= 1, y=2
The solution to the differential equation (x5 + 3y) dx - x dy=0 at x=2 is y=19. This can be found by integrating both sides of the equation, and then using the initial conditions x=1 and y=2.
First, we can integrate both sides of the equation to get:
x^5 + 3y = x^2 y + C
where C is an arbitrary constant.
Now, we can use the initial conditions x=1 and y=2 to find C. Plugging these values into the equation, we get:
1^5 + 3(2) = 1^2 (2) + C
Solving for C, we get C=1.
Finally, we can substitute this value of C back into the equation to get:
x^5 + 3y = x^2 y + 1
At x=2, this equation becomes:
2^5 + 3y = 2^2 y + 1
Solving for y, we get y=19.
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