The perimeter and area of the shape is 18cm² and 12cm respectively.
What is perimeter and area of shape?The perimeter of a shape is the total measurement of all the edges of a shape. Area is defined as the total space taken up by a flat (2-D) surface or shape of an object.
The perimeter of the shape = 4+4+5+5 = 8 +10
= 18cm.
The area of the shape is = b×h
the base = 4cm and height is 3cm
A = 4× 3
= 12cm²
therefore the perimeter and the area of the shape is 18cm² and 12cm² respectively.
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1.
(03. 01 MC)
Part A: Find the LCM of 8 and 9. Show your work. (3 points)
Part B: Find the GCF of 35 and 63. Show your work. (3 points)
Part C: Using the GCF you found in Part B, rewrite 35 + 63 as two factors. One factor is the GCF and the other is the sum of two numbers that do not have a common factor. Show your work. (4 points)
The LCM of 8 and 9 is 72. The GCF of 35 and 63 is 7.35 + 63 can also be written as 7 X 14.
Part A
Here we have been given 2 numbers 8 and 9. We need to find the LCM. LCM is the Lowest Common Multiple. It is the smallest number which can be divided by all the mentioned number. To take the LCM of 8 and 9 we first will factorize them
8 = 2 X 2 X 2
9 = 3 X 3
Here we see that 8 and 9 do not have any common factor. Hence we need to simply multiply them together to get
8 X 9 = 72
Part B.
We need to find GCF of 35 and 63. GCF or the Greatest common factor is the highest number that can divide all the given numbers. Here too we will first factorize 35 and 63.
35 = 5 X 7
63 = 3 X 3 X 7
Here we see that between the numbers, 7 is the only common factor
Hence, 7 is the GCF.
63 can also be written as 63 = 7 X 9
Hence we can write 35 + 3
= (7 X 5) + (7 X 9)
Taking 7 common we get
7(5 + 9)
= 7 X 14
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for each of these relations on the set {1,2,3,4}, decide whether it is reflexive, whether it is symmetric, and whether it is transitive. Which of these relations are equivalence relations?(a) {(2,2),(2,3),(2,4),(3,2),(3,3),(3,4)}. (b) {(1,1),(1,2),(2,1),(2,2),(3,3),(4,4)}. (c) {(2,4),(4,2)}.
The relation is not an equivalence relation. (a) {(2,2),(2,3),(2,4),(3,2),(3,3),(3,4)}:
Reflexive: (2,2), (3,3) are present, but (1,1) and (4,4) are not present. Hence, not reflexive.
Symmetric: (2,3) is present, but (3,2) is also present. Hence, not symmetric.
Transitive: No counterexample to transitivity exists. Hence, it is transitive.
Therefore, the relation is not an equivalence relation.
(b) {(1,1),(1,2),(2,1),(2,2),(3,3),(4,4)}:
Reflexive: (1,1), (2,2), (3,3), (4,4) are present. Hence, reflexive.
Symmetric: (1,2) is present, but (2,1) is also present. Hence, symmetric.
Transitive: No counterexample to transitivity exists. Hence, it is transitive.
Therefore, the relation is an equivalence relation.
(c) {(2,4),(4,2)}:
Reflexive: (2,2) and (4,4) are not present. Hence, not reflexive.
Symmetric: (2,4) is present, but (4,2) is not present. Hence, not symmetric.
Transitive: No counterexample to transitivity exists. Hence, it is transitive.
Therefore, the relation is not an equivalence relation.
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show work/steps please
Find the Taylor series for f centered at 6 if f(n) (6) = (-1)"n! 4"(n + 2) Σ n = 0 What is the radius of convergence R of the Taylor series? R = = X
The Taylor series for f centered at 9, given f^(n)(9) = (-1)^n n!/6^n (n + 2), is f(x) = f(9) - (x-9)/2 + (x-9)^2/12 - (x-9)^3/432 + (x-9)^4/10368 - ... .
To find the Taylor series for f centered at 9, we need to use the formula
f(x) = f(a) + f'(a)(x-a)/1! + f''(a)(x-a)^2/2! + f'''(a)(x-a)^3/3! + ...
where f'(x) represents the first derivative of f(x) with respect to x, f''(x) represents the second derivative of f(x) with respect to x, and so on.
In this case, we are given the nth derivative of f(x) evaluated at x = 9, so we can plug in the values and simplify the formula
f(9) = f(9) (since we're centering the series at 9)
f'(9) = (-1)^1 (1!/6^1)(1 + 2) = -1/2
f''(9) = (-1)^2 (2!/6^2)(2 + 2) = 1/6
f'''(9) = (-1)^3 (3!/6^3)(3 + 2) = -1/36
f''''(9) = (-1)^4 (4!/6^4)(4 + 2) = 1/216
and so on. So the Taylor series for f centered at 9 is
f(x) = f(9) - (x-9)/2 + (x-9)^2/2! * 1/6 - (x-9)^3/3! * 1/36 + (x-9)^4/4! * 1/216 - ...
or, simplifying the coefficients
f(x) = f(9) - (x-9)/2 + (x-9)^2/12 - (x-9)^3/432 + (x-9)^4/10368 - ...
This is the Taylor series for f centered at 9, based on the given information.
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The given question is incomplete, the complete question is:
Find the Taylor series for f centered at 9 if f^(n)(9) = (-1)^n n!/6^n (n + 2)
Anita has saved $43. 75 of the $112. 50 that she needs for a new snowboard.
She saves $13. 75 from her paper route each week. The equation
13. 75w + 43. 75 = 112. 50 can be used to represent the number of weeks
it will take her to reach her goal. In how many more weeks will Anita have
saved enough money for the snowboard?
Anita will take 5 more weeks to save enough money for the snowboard. when she saved $43. 75 of the $112. 50 that she needs for a new snowboard.
Given data :
Total money needs for a new snowboard = $112. 50
Anita saved money = $43. 75
Money saved each week = $13. 75
From the given data we can write the equation to find the number of weeks as,
13. 75w + 43. 75 = 112. 50
By solving the equation 13.75w + 43.75 = 112.50 we can find out how many more weeks it will take Anita to save enough money for the snowboard by using the elimination method.
Subtracting 43.75 from both sides of the equation, we get:
13.75w + 43.75 - 43.75 = 112.50 - 43.75
13.75w = 68.75
w = 68.75 / 13.75
w = 5
Therefore, Anita will take 5 more weeks to save enough money for the snowboard.
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1) Last year a computer cost $1,600 to purchase. A year later the same computer cost $1,850 to purchase. By what percent did the cost of the computer increase? (please show your work)
2)A flock of 50 geese landed at a pond. Later that day there were 75 in the pond. By what percent did the number of geese increase?
a
80%
b
50%
c
2%
d
10%
Answer:
1) 15.625% increase. 1850-1600=250. 250/1600=0.15625. 0.15625x100= 15.625.
2) 50%
Step-by-step explanation:
1) 1850-1600=250. 250/1600=0.15625. 0.15625x100= 15.625.
2) 75-50=25. 25/50=0.5. 0.5x100=50
can someone help me please.
The path r(t)=(t) i+(3t2+5) j describes motion on the parabola y=3x2+5. Find the particles velocity and acceleration vectors at t=5
The particle's velocity vector at t=5 is v(5) = 1i + 30j, and the acceleration vector at t=5 is a(5) = 0i + 6j.
To find the particle's velocity, we take the derivative of the path r(t) with respect to time:
v(t) = r'(t) = i + 6t j
Substituting t=5, we get:
v(5) = 1i + 30j
To find the particle's acceleration, we take the derivative of the velocity with respect to time:
a(t) = v'(t) = 0i + 6j
Substituting t=5, we get:
a(5) = 0i + 6j
Note that the acceleration vector is constant, which is expected since the particle is moving along a parabolic path, and the curvature of the path remains constant.
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Find the area of the polygon
ASAP PLEASE HELP!!!!
20PTS
Hello!
This shape is a "Strange" shape, but if you look closer at it, you can see that it can be divided into "normal shapes" like rectangles and squares
On the bottom on the "polygon" we can dived it into 2 squares
One square would have the dimensions of 6 and 6
The other one would have 4 and 6
The formula of area is: Base*Height
So the first square would have an area of 36
The second square would have an area of 24
Now we solve for the big rectangle
On first thought, it may seem like the dimensions are 16 and 25, but it is actually 10 and 25. Because 16 is the whole height of the polygon.
So we subtract it by 6
So the big rectangle is 250
=================
Now we add the areas together to get a total result of 310
If you have questions, feel free to ask
Alyssa makes $200 for every 8 hour shift she works as a personal trainer. She graphs the amount of money she earns on the y-axis, and number of hours she works the x-axis. What is the slope of the graph?
The slope of this graph is equal to 25.
How to calculate the slope of a line?In Mathematics and Geometry, the slope of any straight line can be determined by using this mathematical equation;
Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Based on the information provided above, we can reasonably infer and logically deduce that Alyssa made $200 for every 8 hour shift she works as a personal trainer. Additionally, the amount of money Alyssa earned would be plotted on the y-axis while the number of hours she work would be plotted on the x-axis of a graph;
Slope (m) = 200/8
Slope (m) = 25.
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Find the maximum volume of a box inscribed in the tetrahedron bounded by the coordinate planes and the plane x + 1/7y + 1/6z = 1. (Use symbolic notation and fractions where needed.) the maximum volume of the box: ...
The maximum volume of the box is 5/49, which occurs at vertex 3.
How to find the maximum volume of a box inscribed in the tetrahedron bounded by the coordinate planes?Let the length, width, and height of the box be x, y, and z respectively. Then the volume of the box is given by V = xyz.
The tetrahedron is bounded by the coordinate planes and the plane x + 1/7y + 1/6z = 1. We can find the vertices of the tetrahedron as follows:
(0, 0, 0)
(7, 0, 0)
(0, 6, 0)
(0, 0, 6)
We can see that the maximum values of x, y, and z occur at different vertices of the tetrahedron.
Therefore, we need to find the coordinates of the vertices of the box at each vertex of the tetrahedron.
At vertex 1, we have x = 0, y = 0, and z = 0. The distance from this vertex to the plane is 1, so the maximum value of x is 1.
Therefore, we set x = 1 and solve for y and z:
1 + 1/7y + 1/6z = 1
y = 0
z = 0
At vertex 2, we have x = 7, y = 0, and z = 0. The distance from this vertex to the plane is 6/7, so the maximum value of y is 6/7.
Therefore, we set y = 6/7 and solve for x and z:
x + 1/7(6/7) + 1/6z = 1
x = 5/6
z = 1/7
At vertex 3, we have x = 0, y = 6, and z = 0. The distance from this vertex to the plane is 5/6, so the maximum value of z is 5/6.
Therefore, we set z = 5/6 and solve for x and y:
x + 1/7y + 1/6(5/6) = 1
x = 4/7
y = 3/7
At vertex 4, we have x = 0, y = 0, and z = 6. The distance from this vertex to the plane is 1/7, so the maximum value of x is 7.
Therefore, we set x = 7 and solve for y and z:
7 + 1/7y + 1/6(6) = 1
y = -42/7
z = 1/6
Now we can calculate the volume of the box at each vertex of the tetrahedron:
V1 = 1(0)(0) = 0
V2 = 5/6(6/7)(1/7) = 5/294
V3 = 4/7(3/7)(5/6) = 5/49
V4 = 7(-42/7)(1/6) = -49/6
Therefore, the maximum volume of the box is 5/49, which occurs at vertex 3.
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Find the area of the triangle. 8 m
5 m
Question content area bottom
Part 1
The area of the triangle is 1 m cubed. (Type a whole number. )
The area of the triangle is 20 square meters.
The formula to find the area of a triangle is A = 1/2 * base * height. In this case, the base of the triangle is 8 meters and the height is 5 meters. Therefore, the area of the triangle is A = 1/2 * 8 m * 5 m = 20 m^2.
We can also check our answer by using the formula A = (b * h) / 2, where b is the base and h is the height of the triangle. Substituting the values given in the question, we get A = (8 m * 5 m) / 2 = 20 m^2. Therefore, the area of the triangle is 20 square meters.
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please help me with this Pythagoras theorum
Step-by-step explanation:
18 m = hypotenuse = c
5 m = b
a² + b² = c²
a² + (5)² = (18)²
a² + 25 = 324
a² = 324 - 25
a² = 299
a = √299
a = 17.29 or 17.3 m
perimeter = a + b + c
= 17.3 + 18 + 5
= 40.3 m
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the girl lifts a painting to a height of 0.5 m in 0.75 seconds. how much
power does she use? *
Power is the rate at which work is done or energy is transferred. In this case, the girl used a force of 98 N to lift the painting to a height of 0.5 m in 0.75 seconds, resulting in 49 J of work done. The power used was calculated to be approximately 65.33 watts.
To calculate the power used by the girl while lifting the painting, we need to use the formula: Power (P) = Work (W) / time (t).
Firstly, we need to calculate the work done by the girl in lifting the painting. Work is defined as the product of force and distance. As there is no information about the force applied, we will assume that the girl lifted the painting with a constant force. Therefore, the work done can be calculated as:
Work (W) = force x distance
Here, the distance is 0.5 m, and we can use the formula for weight to calculate the force required to lift the painting. As we know that the mass of the painting is not given, we can assume it to be 10 kg (a medium-sized painting).
Weight (Wt) = mass x acceleration due to gravity
Wt = 10 kg x 9.8 m/s² = 98 N
Therefore, the work done by the girl is:
W = 98 N x 0.5 m = 49 J
Now, we can use the formula for power to calculate the power used by the girl.
P = W / t
P = 49 J / 0.75 s
P = 65.33 W (approx.)
Therefore, the girl used approximately 65.33 watts of power while lifting the painting.
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The girl used 65.3 watts of power to lift the painting.
How to find power?To calculate power, we need to know the work done and the time taken.
We can use the formula:
power = work/time
The work done is equal to the force applied multiplied by the distance moved. Since we don't know the force, we can use the formula for work in terms of mass, gravity, and height:
work = mgh
where m is the mass, g is the acceleration due to gravity, and h is the height lifted.
Assuming the painting has a mass of 10 kg and the acceleration due to gravity is 9.8 m/s², the work done is:
work = (10 kg) x (9.8 m/s²) x (0.5 m) = 49 J
The time taken is 0.75 seconds.
So the power used is:
power = work/time = 49 J / 0.75 s = 65.3 watts
Therefore, the girl used 65.3 watts of power to lift the painting.
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Plsss help
The following two-way frequency table displays the number of adults and children attending a sporting event.
Sporting Event Attendance
Males Females Total
Adults 804 641 1,445
Children 431 268 699
Total 1,235 909. 2,144
What percentage of males attending the sporting event are adults?
A.
55. 64%
B.
65. 1%
C.
37. 5%
D.
34. 9%
The percentage of males attending the sporting events that are adults is:
65.10%.
How to obtain the percentage?A percentage is one example of a proportion, as it is obtained by the number of desired outcomes divided by the number of total outcomes, and then multiplied by 100%.
The number of males attending sporting events is given as follows:
1235.
Of those 1235 males, 804 are adults, hence the percentage of males attending the sporting events that are adults is given as follows:
p = 804/1235 x 100%
p = 65.10%.
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¿Cómo se escribe la multiplicación 713 × 49, descomponiendo ambos números?
The decomposition of 713 × 49 has been provided below
How to decompose the problemTo multiply 713 and 49, we can use the distributive property and decompose the second number as follows:
49 = 40 + 9
Then, we can multiply each part of the sum by 713:
713 × 40 + 713 × 9
To calculate this, we can use the multiplication table and then add the results:
713
x 40
28520
713
x 9
6417
Then, we add the two results:
713 × 40 = 28520
713 × 9 = 6417
34997
Therefore, the multiplication 713 × 49, decomposed as 713 × 40 + 713 × 9, equals 34,997.
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Use the random list of 100 numbers below and the assignations 0-4 to represent girls and 5-9 to represent boys to answer the question. Determine how many groups contain at least three girls and use the information to answer the questions below.
The example's random list had 25 groups containing three girls, a probability of 25 %. The amount of groups of this random list is (more or less than) ______ the example's random list. The probability of the this random list is therefore (lower or higher then) ________ the example's random list.
The probability of this random list is therefore the same as the example's random list, which is 25%.
What is the probability?To determine the number of groups containing at least three girls, we need to count the number of groups where there are at least 3 numbers between 0 and 4.
We can do this by counting the number of groups that have 0, 1, or 2 numbers between 0 and 4, and subtracting this from the total number of groups:
Number of groups with 0, 1, or 2 numbers between 0 and 4:
Number of groups with 0 numbers between 0 and 4 = 6 choose 0 * 94 choose 4 = 5,414,200
Number of groups with 1 number between 0 and 4 = 6 choose 1 * 94 choose 3 = 291,301,200
Number of groups with 2 numbers between 0 and 4 = 6 choose 2 * 94 choose 2 = 5,111,640
Total number of groups = 100 choose 5 = 75,287,520
Number of groups with at least 3 numbers between 0 and 4:
= Total number of groups - Number of groups with 0, 1, or 2 numbers between 0 and 4
= 75,287,520 - (5,414,200 + 291,301,200 + 5,111,640)
= 64,460,480
The amount of groups of this random list is the same as the example's random list (both have 100 groups).
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What is the area of a regular hexagon with side length of 12. 7 and apothem length of 11?
PLEASE HELP!
The area of the regular hexagon with a side length of 12.7 and apothem length of 11 is approximately 416.61 square units.
To find the area of a regular hexagon, you can use the formula , where A is the [tex]A =\frac{3\sqrt{3} }{2} (s^{2} )[/tex]area, s is the length of one side, and √3 is the square root of 3.
However, since the apothem length is given, you can also use the formula , where ap is the apothem length and p is the perimeter of the hexagon.
First, let's find the perimeter of the hexagon. Since a hexagon has six sides, the perimeter will be 6 x 12.7 = 76.2.
Next, we can use the apothem length of 11 and the side length of 12.7 to find the length of the radius of the circle inscribed in the hexagon. This is because the apothem is the distance from the center of the hexagon to the midpoint of any side, and the radius is the distance from the center to any vertex.
Using the Pythagorean theorem, we can find the radius:
[tex]r^2 = ap^2 + (\frac{s}{2} )^{2}[/tex]
[tex]r^2 = 11^2 + (\frac{12.2}{7} )^{2}[/tex]
[tex]r^2 = 121 + 40.1225[/tex]
[tex]r^2 = 161.1225[/tex]
[tex]r = \sqrt{161.1225}[/tex]
[tex]r = 12.69[/tex]
Now that we know the radius, we can use the formula for the area of a regular polygon in terms of the radius: A = (1/2) x r x ap x n, where n is the number of sides (which is 6 for a hexagon).
Plugging in the values we have:
[tex]A = \frac{1}{2} (12.69)(11)(6)[/tex]
[tex]A = 416.61[/tex]
Therefore, the area of the regular hexagon with a side length of 12.7 and apothem length of 11 is approximately 416.61 square units.
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I need help ASAP (will give brainliest)
Answer:
92°
Step-by-step explanation:
All angles should add up to 360°
Opposite angles are equal so that means two angles are 88°
88+88=176
360 - 176 = 184
184 / 2 = 95
Measure of angle A is 92°
Draw a triangle with one side length of 5 units and another side length
of 7 units. What additional piece of information will guarantee that only
one triangle can be drawn?
It should be noted that to craft a triangle with an edge measuring 5 units of length, another side 7 units in magnitude, we can get underway by sketching an uninterrupted line of 7-units duration.
How to explain the informationSubsequently, draw an additional segment arriving at a peak of 5-units from the starting point of the former line. From the end-point of the line calculated as 7 units, draw a joined line towards the conclusion of the 5 unit-length section. This enables two distinctive triangles:
Also, to guarantee that just a single triangle can be drawn, it is imperative to recognize the angle resting between the two assigned sides. In case we are endowed with the inclination between both varying lengths of five and seven units, then only an original composition of triangle can be constructed.
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1) paul wants to deposit $7,300 into a one-year cd at a rate of 4.85%, compounded quarterly.
a) what his ending balance after the year?
b) how much interest did he earn?
c) what is his annual percentage yield?
hint: use the compounding interest formula
Using the compounding interest formula:
a) His ending balance after the year will be $7,658.91.
b) The amount of interest he will earn is $358.91.
c) His annual percentage yield is 4.9166%.
a) To calculate the ending balance after one year, we'll use the compound interest formula: A = P(1 + r/n)^(nt), where A is the ending balance, P is the principal ($7,300), r is the interest rate (4.85% or 0.0485), n is the number of compounding periods per year (4 for quarterly), and t is the number of years (1).
A = 7300(1 + 0.0485/4)^(4*1) = 7300(1.012125)⁴ = 7300*1.049166 = $7,658.91
b) To find the interest earned, subtract the principal from the ending balance: Interest = A - P
Interest = $7,658.91 - $7,300 = $358.91
c) To calculate the annual percentage yield (APY), we'll use the formula: APY = (1 + r/n)^(n) - 1
APY = (1 + 0.0485/4)⁴ - 1 = 1.049166 - 1 = 0.049166 or 4.9166%
Paul's ending balance after one year is $7,658.91, he earns $358.91 in interest, and his annual percentage yield is 4.9166%.
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When you get home from school, there is 7/8 of a pizza left. You eat 1/2 of it. How much pizza is left over?
Answer: 3/8
Step-by-step explanation:
7/8-1/2
Find common denominator which is 8 and you get that from 1/2 by multiplying 4 on the top and bottom and so you wind up with 4/8 and 7/8-4/8 is 3/8
please help with this photo problem
and describe the resulting transformation
The option that represents the resulting transformation is: Option C
How to find the reflection over a line?A reflection over line is defined as a transformation in which each point of the original figure which is also called the pre-image possesses an image that is the essentially the same distance from the reflection line as the original point, but then is on the opposite side of the line. In a reflection, the image is the same size and shape as the pre-image.
Now, looking at the letter Q, when we reflect it once, it should be the mirror image but when reflect it the second time about same line, it becomes exactly the original copy.
Thus, we can conclude that Option C represents the resulting transformation.
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Problem
Yoshi is a basketball player who likes to practice by attempting the same three-point shot until he makes the shot. His past performance indicates that he has a
30
%
30%30, percent chance of making one of these shots. Let
X
XX represent the number of attempts it takes Yoshi to make the shot, and assume the results of each attempt are independent.
Is
X
XX a binomial variable? Why or why not?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Each trial isn't being classified as a success or failure, so
X
XX is not a binomial variable.
(Choice B)
B
There is no fixed number of trials, so
X
XX is not a binomial variable.
(Choice C)
C
The trials are not independent, so
X
XX is not a binomial variable.
(Choice D)
D
This situation satisfies each of the conditions for a binomial variable, so
X
XX has a binomial distribution
There is no fixed number of trials, so X is not a binomial variable. (Choice B) B is the right response.
Discrete random variables are within the category of binomial random variables. A binomial random variable keeps track of how frequently an event occurs over a predetermined number of trials. ALL of the following prerequisites have to be satisfied for a variable to qualify as a binomial random variable:
A predetermined sample size (number of trials) is used.
The relevant occurrence either takes place or doesn't in every trial.
On each trial, the likelihood of occurrence (or not) is the same.
Trials run separately from one another.
While Yoshi has a 30% chance of success for each shot and the trials are independent, the number of attempts is not fixed, as he continues until he makes the shot.
Thus, the correct answer is (Choice B) B. There is no fixed number of trials, so X is not a binomial variable.
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There are 100 dears within a circular area with a radius of 10. Find the density of deer for 400 square miles.
The density of deer for 400 square miles is around 1:4 based on stated number of deers.
The density of deer will be given by the formula -
Population density of deer = number of deer/ area
Population density is the amount or number of individuals of a population on land per unit area.
Keep the value in formula to find the population density
Population density = 100/400
Cancelling zero as common in both numerator and denominator
Population density = 1:4
Thus, there is 1 deer for every 4 square mile.
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The number of ways to travel the route is given as follows:
18 ways.
What is the Fundamental Counting Theorem?The Fundamental Counting Theorem states that if there are m ways to do one thing and n ways to do another, then there are m x n ways to do both.
This can be extended to more than two events, where the number of ways to do all the events is the product of the number of ways to do each individual event, according to the equation presented as follows:
[tex]N = n_1 \times n_2 \times \cdots \times n_n[/tex]
The options for this problem are given as follows:
Providence to Boston: 3 ways.Boston to Syracuse: 3 ways.Syracuse to Pittsburgh: 2 ways.Hence the total number of ways is given as follows:
3 x 3 x 2 = 18 ways.
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A political candidate feels that she performed particularly well in the most recent debate against her opponent. Her campaign manager polled a random sample of 400 likely voters before the debate and a random sample of 500 likel voters after the debate. The 95% confidence interval for the true difference (post-debate minus pre-debate) in proportions of likely voters who would vote for this candidate was (-0. 014, 0. 064). What was the difference (pre- debate minus post-debate) in the sample proportions of likely voters who said they will vote for this candidate?
The difference in the sample proportions of likely voters who said they will vote for this candidate is 0.025.
The range of the 95% confidence interval for the actual difference between the proportions of probable voters who would support this candidate before and after the debate was (-0.014, 0.064). To find the difference (pre-debate minus post-debate) in the sample proportions of likely voters who said they will vote for this candidate, we need to find the midpoint of the confidence interval, which is the point estimate of the true difference.
In the given question, the interval is (-0.014, 0.064), then the expression for the likely difference is
(0.064 + (-0.014))/2 = 0.050/2
= 0.025
Hence, the difference in the sample proportions of likely voters who said they will vote for this candidate is 0.025.
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Find the missing values assuming continuously compounded interest. (Round your answers to two decimal places.)
Initial Investment: $100
Annual % Rate: ?
Amount of time it takes to double: ?
Amount after 10 years: $1405
Answer:
Annual % Rate: 26.43%
Amount of time it takes to double: 2.62yr
Step-by-step explanation:
Solving for r(Annual%Rate)
A=P⋅e^(r⋅t)
1405=100⋅^(r⋅10)
1405=100⋅e(^10r)
1405/100=100/100⋅e^(10r)
14.05 = e^(10r)
log(14.05) = log(e^10r)
1.1476 = 10r⋅log(e)
1.1476/log(e) = 10r
1.1476/10⋅log(e) = r
r = 0.26426
=26.43%
Now we have r=26.43%. We can use this information to solve for t, the time period to double the initial investment:
2P = Pe^(rt)
2 = e^(0.2643t)
ln(2) = 0.2643t
t = ln(2)/0.2643
t = 2.62yr
A right rectangular prism has a length of 1 foot, a width of 1 3/8 feet, and a height of 5/8 foot. unit cubes with side lengths of 1/8 foot are added to completely fill the prism with no space remaining. how many cubes can fit inside the prism? explain how to find the number by using the volume formula. explain how to find the number by using the side lengths of the prism and the cubes.
The number of cubes of dimensions of [tex]\frac{1}{8}[/tex] foot that can fit into a rectangular prism of a length of 1 foot, a width of 1 [tex]\frac{3}{8}[/tex] foot, and a height of [tex]\frac{5}{8}[/tex] foot is 55.
Volume of cuboid = l * b * h
where l is the length
b is the breadth
h is the height
l = 1 foot
b = 1 [tex]\frac{3}{8}[/tex] foot = [tex]\frac{11}{8}[/tex] foot
h = [tex]\frac{5}{8}[/tex] foot
Volume of cuboid = 1 * [tex]\frac{11}{8}[/tex] * [tex]\frac{5}{8}[/tex]
= [tex]\frac{55}{64}[/tex] cubic foot
Volume of cube = [tex]s^3[/tex]
where s is the side
s = [tex]\frac{1}{8}[/tex] foot
Volume = [tex]\frac{1}{8}^3[/tex]
= [tex]\frac{1}{64}[/tex] cubic foot
Number of cubes = [tex]\frac{\frac{55}{64} }{\frac{1}{64} }[/tex]
= 55
The number of cubes that fit into the prism is 55.
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Answer:
48
Step-by-step explanation:
can be divided into two 4x6 rectangles. Therefore, the area is 4x6 + 4x6 = 48
In Triangle JKL, ∠J is congruent to ∠L.
The measure of ∠L in Triangle JKL is 56.1 degrees.
What is the measures in triangles?In geometry, the measures in triangles refer to the angles and sides within a triangle. Triangles are three-sided polygons, and the measures of their angles and sides are important properties that determine their shape and characteristics.
In a triangle, the sum of the measures of all three angles is always 180 degrees. Therefore, to find the measure of ∠L in Triangle JKL, we can use the information given:
∠J is congruent to ∠L, which means they have the same measure.
∠K is given as 67.8 degrees.
Since ∠J is congruent to ∠L, we can denote their measure as "x".
So, the sum of the measures of ∠J, ∠K, and ∠L is 180 degrees:
∠J + ∠K + ∠L = 180
Substituting the given values:
x + 67.8 + x = 180
Simplifying the equation:
2x + 67.8 = 180
Subtracting 67.8 from both sides:
2x = 180 - 67.8
2x = 112.2
Dividing both sides by 2:
x = 112.2 / 2
x = 56.1
Hence, the measure of ∠L in Triangle JKL is 56.1 degrees.
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