The probability of drawing at least one spade when drawing two cards with replacement from a standard deck of cards is approximately 0.26%.
When drawing two cards at random with replacement from a standard 52-card deck, there are 4 possible outcomes for the first card being a spade and 4 possible outcomes for the second card being a spade.
However, there is also 1 possible outcome where both cards are spades, which would be counted twice if we add the outcomes for the first and second cards separately. Therefore, the total number of outcomes where at least one card is a spade is 4 + 4 - 1 = 7.
The total number of possible outcomes when drawing two cards with replacement is 52 x 52 = 2,704.
Therefore, the probability that at least one card is a spade when drawing two cards with replacement is:
P(at least one spade) = 7 / 2,704 ≈ 0.0026
So, the probability that at least one card is a spade is approximately 0.0026 or 0.26%.
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A trazpodizi has an aera of 35 mm2 what is the height
The height of the trapezium is 5mm, given that the two parallel sides have lengths of 6mm and 8mm, and the area of the trapezium is 35mm².
To find the height of a trapezium given its area and the lengths of its parallel sides, we use the formula:
Area = (a + b) * h / 2
where a and b are the lengths of the parallel sides, h is the height, and Area is the area of the trapezium.
In this case, we are given that the area of the trapezium is 35mm², and we know that the two parallel sides have lengths 6mm and 8mm. So, we can substitute these values into the formula and solve for h:
35 = (6+8) x h/2
Simplifying the right-hand side of the equation, we can combine the two lengths of the parallel sides and multiply by h, and then divide by 2 to get:
35 = 14h / 2
Multiplying both sides by 2, we get:
70 = 14h
Dividing both sides by 14, we get:
h = 5
Therefore, the height of the trapezium is 5mm.
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A person runs in a straight line across a field. The velocity of the person, v(t) is a differentiable function and selected values of v(t) are given above on the interval 0
Therefore, the average velocity of the person over the interval 0 ≤ t ≤ 12 can be calculated as follows:Average Velocity = Total distance travelled / Total time taken= 6.6 / 12= 0.55 m/s.
In the given question, we need to find the average velocity of a person running in a straight line across a field, given differentiable function v(t) on the interval [0,12]. Therefore, to calculate the average velocity of a person, we use the following formula:Average Velocity = Total distance travelled / Total time takenWe have a graph with the velocity of the person, which is a differentiable function v(t) given above on the interval 0 ≤ t ≤ 12.
We need to find the distance travelled by the person. Therefore, we use the following formula:Distance travelled = ∫v(t)dt From the given graph, the velocity of the person is zero when t = 0 and when t = 5. Similarly, the velocity of the person is 0 when t = 10 and when t = 12.So, we have to calculate the distance travelled from 0 to 5, from 5 to 10, and from 10 to 12 to determine the total distance travelled by the person over the given interval .Distance travelled from 0 to 5 can be calculated as follows :
Distance travelled from 0 to 5 = ∫v(t)dt from [tex]0 to 5= 5 x 0.6 = 3[/tex]Distance travelled from 5 to 10 can be calculated as follows :Distance travelled from 5 to 10 = [tex]∫v(t)dt[/tex] from [tex]5 to 10= 5 x 0.4 = 2[/tex]
Distance travelled from 10 to 12 can be calculated as follows: Distance travelled from 10 to 12 = ∫v(t)dt from 10 to 12= 2 x 0.8 = 1.6Total distance travelled = Distance travelled from 0 to 5 + Distance travelled from 5 to 10 + Distance travelled from 10 to [tex]12= 3 + 2 + 1.6= 6.6[/tex]
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4. The three graphs represent the progress
of three runners in a 400-meter race.
The solid line represents runner A. The
dotted line represents runner B. The
dashed line represents runner C.
distance (meters)
400
300
200
100
10
40
20 30
time (seconds)
a. One runner ran at a constant rate throughout the race. Which one?
b. A second runner stopped running for a while. Which one? During which interval
of time did that happen?
c. Describe the third runner's race. Be as specific as possible.
d. Who won the race? Explain how you know.
Answer:
a. Runner A ran at a constant rate throughout the race.
b. Runner B stopped running between 20 and 30 seconds.
c. Runner C started off slow and gradually increased speed until reaching their maximum speed, then gradually slowed down towards the end of the race.
d. Runner A won the race because they crossed the finish line first, at 40 seconds, which is before runners B and C.
Find the missing value
73cm
92cm
5cm
?cm
Answer:
6.3cm
Step-by-step explanation:
73/5 = 92/x
cross multiply to get: 73x=460
divide both sides by 73
x=6.3
What is the mean of this data set?
The line graph is titled Amount of Rainfall. The Y axis is labeled inches. The X axis is labeled weeks. Week 1 has a dot at 2 inches. Week 2 has a dot at 3 inches. Week 3 has a dot at 1 inch. Week 4 has a dot at 3 inches. Week 5 has a dot at 5 inches. Week 6 has a dot at 4 inches. The dots are connected one to the next by a line to show a change in the amount of rainfall.
1
2
3
4
Answer: To find the mean of this data set, we need to add up all the amounts of rainfall and divide by the number of weeks. From the line graph, we can estimate the following amounts of rainfall:
Week 1: 2 inches
Week 2: 3 inches
Week 3: 1 inch
Week 4: 3 inches
Week 5: 5 inches
Week 6: 4 inches
To calculate the mean, we need to add up these amounts and divide by 6 (the number of weeks):
(2 + 3 + 1 + 3 + 5 + 4) / 6
= 18 / 6
= 3
Therefore, the mean amount of rainfall in this data set is 3 inches. The answer is (B) 3.
Step-by-step explanation:
a quantity with an initial value of 2900 grows exponentially at a rate such that the quantity doubles every 7 days. what is the value of the quantity after 54 hours, to the nearest hundredth
Answer: 3623.75
Step-by-step explanation:
setting up squares of known dimension over the entire pattern describes what method of documentation?
The method of documentation that describes the setting up of squares of known dimension over the entire pattern is known as grid method.
Grid method is a method of documentation that involves the setting up of squares of known dimensions over the entire pattern to document a site. This method is commonly used in archaeological surveys and historical preservation.
Grids are used to help maintain a sense of orientation and scale in the documentation process, and they provide a reference point for mapping and recording data. Grids can be set up on maps or site plans, as well as on the ground using physical markers such as stakes or string.Grids can also be used to help facilitate excavation by allowing archaeologists to isolate specific areas of a site and keep track of their findings in a consistent and organized manner.Therefore, grid method is a simple and effective way of recording data, and it is still widely used in the field of archaeology today.
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7(x+4)= -21 i need help pls help me its hard 8th grade btw
The given equation is 7(x+4) = -21 . Therefore, the value of x is 7
In mathematics, an equation is a formula that connects two expressions with the equal sign = to indicate that they are equal. An equation is made up of two expressions joined by an equal sign ("="). Expressions for both sides of the equals sign are called the "left side" and the "right side" of the equation. Many times the right side of the equation is assumed to be zero. Assuming this does not reduce generality, this can be achieved by subtracting the right side from both sides.
According to the Question:
The given equation is:
7(x+4)= -21
⇒ 7x + 28 = -21
⇒ 7x = -49
⇒ x = 7
Complete Question:
Solve the Equation : 7(x+4)= -21
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a. is w in fv1; v2; v3g? how many vectors are in fv1; v2; v3g? b. how many vectors are in span fv1; v2; v3g? c. is w in the subspace spanned by fv1; v2; v3g? why?
a. No, w is not in fv1; v2; v3g. There are three vectors in fv1; v2; v3g.
b. There are three vectors in the span of fv1; v2; v3g.
c. No, w is not in the subspace spanned by fv1; v2; v3g. This is because the subspace is the set of all linear combinations of the vectors in the span, and w does not have to be a linear combination of the vectors in the span.
To prove this, we first need to recall the definition of the span: it is the set of all linear combinations of a set of vectors. A linear combination is a sum of the vectors, multiplied by constants. For example, if we have a vector v1, and two constants a and b, then the linear combination of a*v1 and b*v1 is (a + b)*v1. If a vector w is not a linear combination of v1, then w is not in the span of v1.
The same logic applies to the vectors fv1; v2; v3g. If w is not a linear combination of these three vectors, then w is not in the subspace spanned by these three vectors. We can prove this by showing that w cannot be a linear combination of fv1; v2; v3g. This is because the only way to create a linear combination of these vectors is to multiply them by constants, and since w is not one of the vectors, it cannot be multiplied by a constant. Therefore, w is not in the subspace spanned by fv1; v2; v3g.
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PLS HELP! WILL MAKE U BRAINLIST
Answer:
(5,2)
Step-by-step explanation:
Let's solve your system by substitution.
[tex]x+y=7{\text{ ; }}x=y+3[/tex]
Step 2: let Solve [tex]$x+y=7$[/tex] for[tex]$x$[/tex]
[tex]x+y=7[/tex]
[tex]x+y +(-x)=7+(-x)[/tex] (Add (-x) on both sides)
[tex]y=-x+7[/tex]
0+(x)=7-x-y+(x) (Add (x) on both sides)
x = -y + 7
x/1 = -y+7/1 (divide through by 1)
x = -y + 7
Substitute -y+7 for x in x = y + 3, then solve for u
(-y + 7) = y + 3
-y + 7 = y + 3 (simplify)
-y+7+(-7) = y + 3 + (-7) (Add (-7) on both sides)
-y=y-4
-y = y-4 (simplify)
-y+(-y)=y-4+(-y) (Add (-y) on both sides)
-2y-=-4
-2y/-2 = -4/-2 (Divide through by -2)
y = 2
Substitute in 2 for y in x = -y + 7
x = -y+7
x = -2+7
x = 5
Answer:
x = 5 and y = 2
a. For which angle measures, 0, between 0 and
2π radians is cos(0) = 0? Label the
corresponding points on the unit circle.
b. What are the values of sin(x) for these angle
measures?
False to say that "cos(0) = 0." Cos(0) is equal to 1, as the input yields the x-coordinate of the spot on the circle for each arc in right spot, where first side coincides positive x-axis or final side spins clockwise first side.
What does it mean to coincide?
occupying the same location in time or space; coinciding; taking up the same spots on a scale. 3. Exactly concur.
Nevertheless, if the query is changed to ask for the angle that measures between 0 & 2 radians for which cos(x) = 0, the response is:
When x is equal to 2 or 3, cos(x) equals 0. The unit circle's corresponding points at these angles are, respectively, (0, 1) and (0, -1).
b. The sin(x) values for these angle measurements are:
As the equivalent point is at (0, 1) just on unit circle, sin(/2) equals 1.Due to (0, -1) being the corresponding point on the unit circle, sin(3/2) = -1.
therefore, False to say that "cos(0) = 0." Cos(0) is equal to 1, as the input yields the x-coordinate of the spot on the circle for each arc in right spot, where first side coincides positive x-axis or final side spins clockwise first side.
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How To Do 387 x 72 In standard algorithm.
Answer: k898
iiii
Step-by-step explanation:
k8ni7mrvnyrt
Which scatterplots indicate a nonlinear relationship between the variables shown?
Select TWO correct answers.
Answer:
C and E
Step-by-step explanation: C represents a nonlinear relationship because a nonlinear relationship is a relationship that does not have a straight line. E is a nonlinear relationship because it does not have a straight line. Hope this helps!! :))
Also, please mark me brainliest!! :))
ann gave 10% of her time to point i, 15% of her time to point ii, and 75% of her time to point iii. what does this division indicate?
Answer:
Point I and Point II may not need to be main points.
Ann's main points are not balanced.
Parallel structure will not work with Ann's speech topic.
Step-by-step explanation:
This division indicates that Ann prioritized Point III above Points I and II. Point III was allocated the most of Ann's time (75%), while Point I and II were each given 10% and 15%, respectively. This is a sign that Ann placed a higher priority on Point III.
In terms of the actual percentages, this could indicate a variety of things. It could mean that Ann felt Point III was more important than the other two points, or that Point III took more time to complete than the other two points. It could also mean that Ann was trying to achieve a specific ratio of her time dedicated to each point.
Regardless of the reasoning, this division of Ann's time shows that she placed a higher priority on Point III. This could mean that Point III was more important to her overall goal than the other two points, or that Point III required a larger amount of her time.
By understanding this division of Ann's time, we can gain insight into what she felt was important, and how she chose to prioritize her time. This can be used to better understand Ann's thought process and her overall goal.
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Show your solutions.
1. )A payphone service charges $5. 00 for the first three minutes and $1. 00 for every minute additional or fraction thereof. How much will a caller have to pay if his call lasts for 8 minutes?
2. ) A jeepney passenger is charged $7. 50 for the first 4km and an additional $1. 25 per succeeding kilometers as fare. What is the cost of a 30km ride?
3. ) A private parking garage changes $100. 00 for the first three hours plus $35. 00 for each additional hour. Find the cost of parking for one whole day?
PLEASE! SHOW ME A SOLUTION.
Answer:
Step-by-step explanation:
1) $5 + (8 min - 3 min)($1/min) = $5 + $5 = $10
2) $7.50 + (30 km - 4 km)($1.25/km) = $7.50 + $32.50 = $40
3) $100 + (24 hr - 3 hr)($35/hr) = $100 + $735 = $835
decrease 144 in the ratio 4:3
Answer:
If you want to decrease 144 in the ratio of 4:3, you can do so by first finding the difference between the two parts of the ratio (4-3=1) and then dividing 144 by this difference (144/1=144). This gives you the value of one part of the ratio. You can then multiply this value by 3 to find how much you need to decrease 144 by: 144 * 3 = 432. So if you decrease 144 by 432, it will be in the ratio of 4:3.
Step-by-step explanation:
Find one solution for the equation, (2x-3)(3x+5)=0.
The two solutions to the equation (2x - 3)(3x + 5) = 0 when solved are x = 3/2 and x = -5/3
How to determine the solution to the equationGiven that, we have the following equation
(2x - 3)(3x + 5) = 0
The above equation means that
2x - 3 = 0 and 3x + 5 = 0
When the equations are evaluated, the equations becoms
2x = 3 and 3x = -5
Lastly, we divide both sides of the equation by the coefficent of x i.e 2 and 3
So, we have
x = 3/2 and x = -5/3
So, the values of the solutions to the equation are x = 3/2 and x = -5/3
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An plane covers 50 miles in 1/5 of an hour. How many miles can the plane cover in 5 hours
Answer: 1250 miles
Step-by-step explanation:
50 miles in 1/5 of an hour = 250 miles in 1 hour = 1250 miles in 5 hours
Answer:
1,250
Step-by-step explanation:
50 divided by 1/5 equals 250.
Multiply 250 by 5.
250*5= 1,250
(57x -32< 72 respuesta son desigualdades
Answer:
x < 2
Step-by-step explanation:
57x - 32 < 72
57x < 104
x < 2
Refer to the map of Florida the distance on the map between Daytona beach and Orlando is 2 units what is the actual distance between Daytona beach and Orlando?
According to the information, the distance between Daytona beach and Orlando would be 52 miles.
How to calculate the distance from Daytona beach to Orlando?To calculate the distance from Daytona beach to Orlando we must perform the following rule of three mathematical procedure:
1. In this case, we must consider the procedure like this:
If one unit is equal to 26 miles, how many miles are 2 units equal to?
1 unit = 26 miles2 units = ?miles2 * 26 miles / 1 = 52 miles.So, we can conclude that the distance between Orlando and Baytona beach is 52 miles.
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Can you please help me and also explain
Answer:
We can begin by simplifying each equation:
A. 52 = 8n + 4 can be rewritten as 48 = 8n or 6 = n
B. 4(2n + 1) = 52 can be simplified to 8n + 4 = 52 or 8n = 48 or 6 = n
C. 4=52-8n can be rewritten as 8n = 48 or 6 = n
D. 4n = 48 can be simplified to n = 12
Therefore, equations A, B, and C are equivalent, and equation D is not equivalent to the others.
So, the correct answers are A, B, and C.
Answer:
Step-by-step explanation:first you have to multiply then divide then add then subtract and then substitute and then you will get the answer.
Find the missing side length.
Answer: 9 cm
Step-by-step explanation: 4+5=9
algebra 1a/b opt #1 performance task: task linear regression
Answer:
Step-by-step explanation:
Not sure.
when a letterform is measured vertically, from the bottom of the descender to the top of the ascender, what unit is used? a.) mean line b.) point c.) x-height d.) pica
The unit used to measure the vertical height of a letterform from the bottom of the descender to the top of the ascender is the x-height. The correct answer to the question is option c) x-height.
The x-height is the height of the lowercase letters in a font, typically excluding ascenders and descenders. It is a crucial factor in typography because it affects the legibility and overall appearance of the text.
The x-height is measured in points, which is a unit of measurement commonly used in typography and printing. One point is equivalent to 1/72 of an inch, and it is abbreviated as "pt".
Therefore, the correct answer to the question is option c) x-height. Typography plays an essential role in graphic design, advertising, and branding, and understanding the measurement units used in typography is crucial for producing effective designs.
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Simplify (4x3y − 5x2y + 6y) − (9x3y − 3x2y − 6y).
The simplified expression is −5x³y − 2x²y + 12y.
The given expression is (4x³y − 5x²y + 6y) − (9x³y − 3x²y − 6y). To simplify this expression, we need to distribute the negative sign inside the second set of parentheses and then combine like terms.
Distributing the negative sign inside the second set of parentheses, we get:
(4x³y − 5x²y + 6y) − 9x³y + 3x²y + 6y
Next, we can group the terms that have the same variables and exponents:
4x³y − 9x³y = −5x³y −5x²y + 3x²y = −2x²y 6y + 6y = 12y
Finally, we can combine the like terms to obtain the simplified expression:
−5x³y − 2x²y + 12y
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Answer:
B:−5x3y − 2x2y + 12y
Step-by-step explanation:
i took the test and got it right
an individual purchased 250 program licenses; 50 licenses will go to the satellite office out of state, and the remaining licenses will be distributed among 10 company departments of varying size. do you have the information you need to solve for how many licenses each department will get?
The answer is yes, we have all the information needed to solve for how many licenses each central office department will get.
If this very individual acquired about 250 program licenses and 50 licenses are taken or conveyed to departments in the satellite office of same organization, then, number of licenses which will be moved to the central office is:
= 250 - 50
= 200 licenses.
This conclude that 200 licenses will be moved to the central office while 50 licenses will be kept or used at the satellite office.
Then, as given if there are 10 company's departments in central office of this organization and all that 250 licenses will be evenly or equally distributed among the departments, each department will get:
200/10
= 20 licenses.
Since dividing 200 by 10 does give a perfect integer, then there's no further information we are yet to be furnished with. One department will get 10 license.
Therefore, we have all the information we need to solve for how many licenses each central office department will get.
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what is the product of (8.8x10^6)(5x10^2)?
can u guys show how u do it? because i need to show work on it. Pls.
A.4.4 x 10^8
B. 4.4 x 10^9
C. 4.4 x 10^10
D. 4.4 x 10^12
Answer:
B. 4.4×10^9
Step-by-step explanation:
8.8×10^6×5×10^2
=8.8×5×10^(6+2)
=44×10^8
=4.4×10^9 is the answer
to meet the required weight specification, a total of 30 yards of material must be used for each frame. what is the optimal solution? if ati purchase the professional grade for $8 per yard will optimal solution change?
The optimal solution would be to use $240 worth of professional grade material for each frame.
Describe Optimal Solution?An optimal solution is a solution that provides the best possible outcome for a problem or situation, given a set of constraints or requirements. In mathematical optimization, an optimal solution is the solution that maximizes or minimizes an objective function while satisfying a set of constraints.
In other words, an optimal solution is the solution that is most efficient, effective, or desirable according to a certain set of criteria. It is the solution that achieves the best possible outcome, given the available resources and limitations.
To find the optimal solution, we need more information about the specific weight specification and the cost of different types of materials.
However, if we assume that there is only one type of material available, and that it costs $x per yard, we can set up an equation to find the optimal solution:
30x = cost per frame
If the professional grade material costs $8 per yard, then the equation becomes:
30(8) = $240 per frame
So, the optimal solution would be to use $240 worth of professional grade material for each frame, assuming that it meets the weight specification. If the weight specification requires a different amount of material, or if there are other materials available at different prices, the optimal solution would be different.
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Mark stacked 1.2 meters of bricks onto a partially finished brick all. The wall is now 4.1
The height of the partially finished brick wall was 2.9 meters.
How to solveLet's denote the height of the partially finished brick wall as x meters. Mark stacked 1.2 meters of bricks onto the wall, which made the final height of the wall 4.1 meters.
Here's the equation to represent the situation:
x + 1.2 = 4.1
To solve this equation, subtract 1.2 from both sides:
x = 4.1 - 1.2
x = 2.9
So, the height of the partially finished brick wall was 2.9 meters.
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answered • expert verified
A pyramid and a prism share the same base. The prism has 99 edges. How many faces does the pyramid have
A pyramid with a base having n sides will have n + 1 faces, excluding the base. So, the pyramid that shares the same base as the prism will have 16 + 1 = 17 faces.
Let's say the base of the pyramid is a polygon with n sides. There are n faces in the pyramid (excluding the base), each of which is a triangle. Since there is just one base, the number of faces in the pyramid is n + 1.A prism is a polyhedron that is formed when two congruent polygons are joined by parallelograms. As a result, a prism with a polygon base has two polygons as bases and a number of rectangular faces equal to the number of sides of the polygon, which in this scenario is n.There are 2 bases and n rectangular faces in total for the prism. Since the number of edges in the prism is 99, we may express this as:Edges in prism = (Number of edges in each rectangular face × Number of rectangular faces) + (Number of edges in each base × Number of bases)= [tex]4n + 2n = 6n = 99n = 16.5[/tex] faces are in the pyramid = 16 + 1 = 17 faces.
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