The incorrect statement among the given options is "P(A∩B) = P(A)P(B)" if A and B are independent.
The incorrect statement among the given options is "P(A∩B) = P(A)P(B)" if A and B are independent. In fact, the correct statement is "P(A∩B) = P(A)P(B)" if A and B are mutually exclusive or disjoint. When A and B are independent, the correct statement is "P(A∩B) = P(A)P(B|A) = P(A)P(B)" where P(B|A) is the probability of event B occurring given that event A has occurred. The probability of the intersection of two independent events is equal to the product of their individual probabilities. Therefore, the second and third statements are correct.
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Use a system of equations to solve the quadratic equation: x2 + 2x + 10 = - 3x + 4.
The solutions of the equation x² + 2x + 10 = - 3x + 4 are x=-2 and x=-3
The given equation is x² + 2x + 10 = - 3x + 4.
Take all the terms to the left side
x² + 2x + 10+3x-4=0
Combine the like terms
x²+5x+6=0
x²+2x+3x+6=0
Take out the factors
x(x+2)+3(x+2)=0
(x+3)(x+2)=0
x=-2 and x=-3
Hence, x=-2 and x=-3 are the solutions of the equation x² + 2x + 10 = - 3x + 4.
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What is each number in scientific notation?
Drag the answer into the box to match each number.
0.0000855 -------
855,000 --------
A.8.55 * 10^-6, B.8.55 * 10^-5, C.8.55 * 10^5, D.8.55 * 10^6
i really need help on this
Answer: y=0.2x-2
Step-by-step explanation: Find the slope. (4,-1) (0,-2) are the two points I picked.
(-2)-(-1)=(-1)
0-4=(-4)
-1/-4=1/4=0.2
The y-intercept is -2.
Therefore, the answer is y=0.2x-2.
What is -(x + 5) distributed
Answer:
-x-5
Step-by-step explanation:
Multiply every part inside the equation by -1.
x*-1 and 5*-1
-1x+-5x
Simplify.
-x-5
Please help me i need help
Answer:
sin is .6, Cos is .8 and tan is .75
Step-by-step explanation:
Ez
A figurine has the shape of a square pyramid. the side length of the square base is 14 inches. the slant height of the figurine is 20 inches. what is the height of the figurine? enter your answer, rounded to the nearest tenth of an inch, in the box. in.
Therefore, the height of the figurine is approximately 18.7 inches.
To find the height of the figurine, we need to use the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse (in this case, the slant height) is equal to the sum of the squares of the other two sides.
In this case, the slant height is 20 inches, and one of the other sides is half the length of the base of the square pyramid (since the triangle formed by the slant height, the height of the pyramid, and one of the sides of the square base is a right triangle).
So, using the Pythagorean theorem:
20^2 = h^2 + (14/2)^2
400 = h^2 + 49
h^2 = 351
h ≈ 18.7
To summarize, we used the Pythagorean theorem to find the height of a square pyramid-shaped figurine. By recognizing that one of the right triangles formed by the slant height, the height of the pyramid, and one of the sides of the square base had a base length of half the length of the square base, we were able to set up an equation and solve for the height of the figurine. Using the Pythagorean theorem, we found that the height was approximately 18.7 inches, rounded to the nearest tenth of an inch.
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What is -23/6 - -7/3?
Answer:
- 1 1/2
Step-by-step explanation:
- 23/6 + 7/3
LCD = 6
- 23/6 + 14/6
(- 23 + 14)/6
- 9/6
- 3/2
- 1 1/2
Answer:
What is -23/6 - 7/3?
✔ –37/6
Step-by-step explanation:
I got this right on edge 2021
Hope this helps!
:D
At simba travel agency, the price of a climbing trip to mount kilimanjaro includes an initial fee plus a constant fee per meter. the variable fff models the fee (in dollars) for climbing ddd meters. f=110 0.12df=110 0.12df, equals, 110, plus, 0, point, 12, d what is the initial fee?
At simba travel agency, the price of a climbing trip to mount kilimanjaro includes an initial fee and the initial fee is $110.
In the given equation, f = 110 + 0.12d, we are told that f represents the fee (in dollars) for climbing d meters. We need to determine the initial fee, which is the fixed amount that is added regardless of the number of meters climbed.
By examining the equation, we can observe that the initial fee is represented by the constant term, which is 110. This means that regardless of the number of meters climbed, there is a base fee of $110.
The additional term, 0.12d, represents the fee per meter climbed. This term varies based on the distance covered and is calculated by multiplying 0.12 by the number of meters climbed (d).
Therefore, the initial fee is $110. This amount is charged upfront to cover the basic costs associated with the climbing trip, such as administration, guides, and other fixed expenses. The additional fee per meter climbed is added to account for the variable costs directly proportional to the distance covered during the climb.
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Please answer the following question
Answer:
first give options it is very hard to do
The angle of elevation of a jet is 43° and 62° from two locations 28.5km apart. Calculate the height of the jet.
The height of the jet is approximately 6603.6 meters.
Let AB be the line joining the two observation points A and B and let C be the position of the jet.
Let AC = h be the height of the jet above the horizontal line AB.
From A and B, respectively, angles of elevation of the jet are 43° and 62°. Let D be the foot of the perpendicular from C to AB.
Since angle of elevation of the jet from point A is 43°,
angle ADC = 90° - 43°
angle ADC = 47°.
Similarly,
angle ABD = 90° - 62°
angle ABD = 28°.
Now in triangle ADC, we have
tan 47° = h / AD
=> AD = h / tan 47°.
In triangle ABD, we have
tan 28° = h / BD
=> BD = h / tan 28°.
Adding these two, we have:
AB = AD + BD
AB = h / tan 47° + h / tan 28°
Applying the formula of the distance between two points in terms of their coordinates, we have:
AB = sqrt((28.5)² + h²)
Putting the two expressions of AB equal to each other and solving for h, we get:
h / tan 47° + h / tan 28° = sqrt((28.5)² + h²)h * (1 / tan 47° + 1 / tan 28°)
= sqrt((28.5)² + h²)h² * (1 / tan 47°² + 1 / tan 28°² + 2 / (tan 47° * tan 28°)))
= (28.5)² * tan² 47°(1 / tan 47°² + 1 / tan 28°² + 2 / (tan 47° * tan 28°)))h²
= (28.5)² * tan² 47° / (1 / tan 47°² + 1 / tan 28°² + 2 / (tan 47° * tan 28°)))h
= 6603.6 meters (approx.)
Therefore, the height of the jet is approximately 6603.6 meters.
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Find the selling price.
Cost to store: $50
Markup: 10%
What's the selling price?
Which triangle is congruent to ABC?
noah does half as many push-ups as joseph. joshua does 3 times as many push-ups as joseph. they complete 324 altogether. How many push-ups does joshua complete?
Answer:
112
Step-by-step explanation:
Bills paid online on the weekend are seen til the next business day - yes or no
Answer:
yes, bills paid online over the weekend would not be seen until the next business day, usually Monday.
2.2.3 b for which -x²+8x+20=b will have real roots
Answer:
second that -x is the correct answer
What is the scale factor? Polygon FGHIJ is a dilation of polygon ABCDE.
Thanks
Answer:
1/2 scale factor.
Step-by-step explanation:
The polygon was dialated with a scale factor of 1/2
Hope this helps!
There are 90 students in the sixth grade at Columbus Middle School, and 63 of those students participate in school sports.
What percent of the sixth graders participate in school sports?
Answer:
70% of the sixth graders participate in school sports
Step-by-step explanation:
63 ÷ 90 = 0.7 =70
round the decimal two places to the right
Hope this helps!!
Read the following statements:
Statement 1: If it is a square, then it has more than four sides.
Statement 2: If it has less than four sides, then it is a square.
Are the two statements logically equivalent?
A.) Yes, both statements are true.
B.) Yes, both statements are false.
C.) No, only one statement is true.
D.) No, both statements are false.
Answer: No, both statements are false.
Step-by-step explanation: it's logical a square has to have 4 sides no more and no less.
The statements are not logically equivalent because D.) No, both statements are false.
What is a square?A square is a regular quadrilateral in Euclidean geometry, which means it has four equal sides and four equal angles. It can also be defined as a rectangle with two adjacent sides of equal length.
A square is a regular polygon with four equal sides and four equal angles of 90° each. A square is a closed two-dimensional shape with four equal sides and four vertices. Its opposing sides are perpendicular to each other. A square can also be thought of as a rectangle with equal length and width.
In this case, a square has four sides. Therefore, the information given about the square is wrong. The correct option is D.
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That's driver pays all tall is using only nickels and dimes by throwing one coin at a time into the mechanical toll collector
Since nickel is 5 cents and a dime is 10 cents, the possible tolls that you can pay need to be multiplies of 5 cents.
Let on represent the number of a ways
for the number of different ways the bus
The driver can pay a toll of 5n rent first case.
The first case used in a nickel then there are ways to pay =
57 - 5 = 5 ( 1 - 1 ) cents
The second case: - The coin used is a dime, then
there is a long way to
pay 5n - 10 2 5 ( 1 - 2 ) cents -
Adding the numbers of sequence of all
In three cases, we then obtain
an = an - 1 an +2
Initially, when n 20 there is exactly I way to pay cents ( using no coins )
when an = 1 there is exactly I to way
to pay 5 cents ( using one tickle )
q =f .
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on a certain standardized test, the mean is 180 and the standard deviation is 35. which of the following is within 2 standard deviations of the mean?
Any value between 110 and 250 is within 2 standard deviations of the mean. In other words, any data point between 110 and 250 is considered within this range.
Within 2 standard deviations of the mean refers to the range that includes data points within two units of standard deviation from the mean. In this case, the mean is 180 and the standard deviation is 35.
To find the range within 2 standard deviations of the mean, we need to calculate the upper and lower bounds.
The upper bound can be found by adding 2 standard deviations (2 * 35 = 70) to the mean: 180 + 70 = 250.
The lower bound can be found by subtracting 2 standard deviations (2 * 35 = 70) from the mean: 180 - 70 = 110.
Therefore, any value between 110 and 250 is within 2 standard deviations of the mean. In other words, any data point between 110 and 250 is considered within this range.
It's important to note that this answer is specific to the given mean and standard deviation. If the mean and standard deviation were different, the range within 2 standard deviations would also be different.
Always calculate the upper and lower bounds based on the provided mean and standard deviation to determine the range within 2 standard deviations accurately.
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find the value of x
-3=16-x
Answer:
Step-by-step explanation:I don't say you have to mark my ans as brainliest but if you think it has really helped you plz don't forget to thank me...
Melissa made a paperweight. The paperweight is a rectangular prism. She painted the outside surface of the paperweight.
Consider a line process with 3 processing stages. The production requires each unit to go through Stage A through Stage C in sequence. The characteristics of the Stages are given below: Stage A B C Unit processing time(minutes) 1 2 3 Number of machines 1 1 2 Machine availability 90% 100% 100% Process yield at stage 100% 100% 100% Determine the system capacity. Which stage is the bottleneck? What is the utilization of Stage 3.
The system capacity is 2 units per minute, the bottleneck stage is Stage A, and the utilization of Stage 3 is 100%.
A line process has three processing stages with the characteristics given below:
Stage A B C Unit processing time(minutes) 1 2 3 Number of machines 1 1 2 Machine availability 90% 100% 100% Process yield at stage 100% 100% 100%
To determine the system capacity and the bottleneck stage and utilization of Stage 3:
The system capacity is calculated by the product of the processing capacity of each stage:
1 x 1 x 2 = 2 units per minute
The bottleneck stage is the stage with the lowest capacity and it is Stage A. Therefore, Stage A has the lowest capacity and determines the system capacity.The utilization of Stage 3 can be calculated as the processing time per unit divided by the available time per unit:
Process time per unit = 1 + 2 + 3 = 6 minutes per unit
Available time per unit = 90% x 100% x 100% = 0.9 x 1 x 1 = 0.9 minutes per unit
The utilization of Stage 3 is, therefore, (6/0.9) x 100% = 666.67%.
However, utilization cannot be greater than 100%, so the actual utilization of Stage 3 is 100%.
Hence, the system capacity is 2 units per minute, the bottleneck stage is Stage A, and the utilization of Stage 3 is 100%.
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can you help me with this, please?
Answer:
i have did thiskmlm'kl
Step-by-step explanation:
alot
As an estimation we are told £3 is €4.
Convert £28.20 to euros.
Give your answer rounded to 2 D
Answer:
21
Step-by-step explanation:
Find the exact length of the curve described by the parametric equations.
x = 8 + 3t2, y = 3 + 2t3, 0 ≤ t ≤ 2
The exact length of the curve described by the parametric equations x = 8 + 3t², y = 3 + 2t³, for 0 ≤ t ≤ 2, is 2√5 - 2.
How to find the exact length of the curve?To find the exact length of the curve described by the parametric equations, we can use the arc length formula for parametric curves:
L = ∫[a,b] √[(dx/dt)² + (dy/dt)²] dt
Given the parametric equations x = 8 + 3t² and y = 3 + 2t³, we need to find dx/dt and dy/dt and then evaluate the integral over the given range 0 ≤ t ≤ 2.
First, let's find dx/dt:
dx/dt = d/dt (8 + 3t²)
= 6t
Next, let's find dy/dt:
dy/dt = d/dt (3 + 2t³)
= 6t²
Now, let's substitute these derivatives into the arc length formula and evaluate the integral:
L = ∫[0,2] √[(6t)² + (6t²)²] dt
= ∫[0,2] √(36t² + 36t⁴) dt
= ∫[0,2] √(36t²(1 + t²)) dt
= ∫[0,2] 6t√(1 + t²) dt
To evaluate this integral, we can use a substitution. Let u = 1 + t², then du = 2t dt. Substituting these values, we get:
L = ∫[0,2] 6t√(1 + t²) dt
= ∫[1,5] 3√u du
Integrating with respect to u:
L = [2√u] | [1,5]
= 2√5 - 2√1
= 2√5 - 2
Therefore, the exact length of the curve described by the parametric equations x = 8 + 3t², y = 3 + 2t³, for 0 ≤ t ≤ 2, is 2√5 - 2.
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an angle measures 79 degrees, and a circle is centered at the angle's vertex. the subtended arc along this circle is how many times as long as 1 360 th of the circle's circumference?
The subtended arc along the circle is 79/360 of the circle's circumference. Therefore, the subtended arc is approximately 0.2194 times as long as 1/360 of the circle's circumference.
To find the length of the subtended arc along the circle, we need to know what fraction of the circle's circumference it represents.
The angle measures 79 degrees, which is a little over 1/5 of a full circle (which measures 360 degrees). Therefore, the subtended arc represents a little over 1/5 of the circle's circumference. More precisely, it represents 79/360 of the circle's circumference.
To find out how many times as long the subtended arc is as 1/360 of the circle's circumference, we can divide the length of the subtended arc by the length of 1/360 of the circle's circumference. This gives us:
(79/360) / (1/360) = 79
So the subtended arc is 79 times as long as 1/360 of the circle's circumference. Alternatively, we can express this as a decimal by dividing the subtended arc by 1/360:
(79/360) ÷ (1/360) = 0.2194
So the subtended arc is approximately 0.2194 times as long as 1/360 of the circle's circumference.
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is domanin x or y???????????????????????????????????
Answer:
The domain is x and the Range is y
Answer:
x-axis
Step-by-step explanation:
please help this is so confusing.
Answer:
6 ÷ 3 = -6/-3
(-3)/6 = 3 ÷ (-6) = -(3/6)
6/(-3) = -(6/3)
leftover: -3/-6
Find the area of the blue region.
10 m
5.5 m
4m
A. 40 m²
B. 26.5 m²
C. 48 m²
D. 70 m²
7m
Answer:
the answer is 48m²
Step-by-step explanation:
mark me brainlist please!!