If the probability of rain is P, because there are only two outcomes, we know that the probability that will not rain is 1 - P
What is the probability that it will not rain tomorrow?Let's say that the probability of rain tomorrow is P. There are two possible events here:
Tomorrow rains.Tomorrow does not rain.Then the second event is the negation of the first (Thus the probability is the composition), and notice that one of these events will happen, then the sum of the probabilities must be 1, then the probability that tomorrow will not rain is:
probability of not rain = 1 - P
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17 points please help
Answer:
3% of the figure is shaded
Fraction: 3/10
Decimal: 0.3
Hope this helped
a) Eliminate the parameter to find a cartesian equation of thecurve.
x=3sint, y=3cost, 0
b) Find the length of the curve
x=3t, y=2t3/2, 0
a) The Cartesian equation of the curve is x^2 + y^2 = 9, which is the equation of a circle with center at the origin and radius 3.
b) The length of the curve is approximately 0.891 units.
a) To eliminate the parameter, we can use the identity sin2t + cos2t = 1 to solve for t in terms of x and y. We have:
x = 3sin(t)
y = 3cos(t)
Squaring both sides of each equation and adding them gives:
x^2 + y^2 = 9(sin^2(t) + cos^2(t)) = 9
Thus, the Cartesian equation of the curve is x^2 + y^2 = 9, which is the equation of a circle with center at the origin and radius 3.
b) To find the length of the curve, we use the arc length formula:
\(L = ∫√(dx/dt)^2 + (dy/dt)^2 dt\)
where the integral is taken over the interval [0, 1].
From the given parametric equations, we have:
dx/dt = 3
dy/dt = 3t^(1/2)
Substituting these into the arc length formula and evaluating the integral, we get:
L = ∫0^1 √(3^2 + (3t^(1/2))^2) dt
= ∫0^1 √(9 + 9t) dt
= ∫0^1 3√(1 + t) dt
= [2(1 + t)^(3/2)/3]_0^1
= 2/3(2^(3/2) - 1)
Thus, the length of the curve is approximately 0.891 units.
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Use the given function to find the following.
x + 10
5
f (x) =
=
-1
f-¹ (x).
Find
-1
Find f (ƒ-¹ (5)).
(no spaces)
The composite function f (ƒ-¹ (5)) is 5
How to determine the composite functionFrom the question, we have the following parameters that can be used in our computation:
f(x) = (x + 10)/5
Also, we have
f-¹ (x) = 5x - 10
The composite function f (ƒ-¹ (5)) is calculated as
f (ƒ-¹ (x)) = (5x - 10 + 10)/5
Evaluate the difference
f (ƒ-¹ (x)) = 5x/5
So, we have
f (ƒ-¹ (x)) = x
Substitute 5 for x
f (ƒ-¹ (5)) = 5
Hence, the solution is 5
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Complete question
Use the given function to find the following.
f(x) = (x + 10)/5
f-¹ (x) = 5x - 10
Find f (ƒ-¹ (5)). (no spaces)
In a newspaper, it was reported that the number of yearly robberies in Springfield in 2012 was 90, and then went down by 50% in 2013. How many robberies were there in Springfield in 2013?
Answer: 45
Step-by-step explanation:
Find the indicated probability.
An archer is able to hit the bull's-eye 53% of the time. If the archer shoots 10 arrows, what is the probability they get exactly 4 bull's-eyes? Assume each shot is independent of the others.
0.0789
0.0905
0.179
0.821
Answer:
C) 0.179
Step-by-step explanation:
Since the trials are independent, this is a binomial distribution:
Recall:
Binomial Distribution --> \(P(k)={n\choose k}p^kq^{n-k}\) \(P(k)\) denotes the probability of \(k\) successes in \(n\) independent trials\(p^k\) denotes the probability of success on each of \(k\) trials\(q^{n-k}\) denotes the probability of failure on the remaining \(n-k\) trials\({n\choose k}=\frac{n!}{(n-k)!k!}\) denotes all possible ways to choose \(k\) things out of \(n\) thingsGiven:
\(n=10\)\(k=4\)\(p^k=0.53^4\)\(q^{n-k}=(1-0.53)^{10-4}=0.47^6\)\({n\choose k}={10\choose 4}=\frac{10!}{(10-4)!4!}=210\)Calculate:
\(P(4)=(210)(0.53^4)(0.47^6)=0.1786117069\approx0.179\)Therefore, the probability that the archer will get exactly 4 bull's-eyes with 10 arrows in any order is 0.179
I don't get this question
Answer:
1/4
Step-by-step explanation:
Use the equation of a line from 2 points.
Assume that all grade point averages are to be standardized on a scale between 0 and 4. How many grade-point averages must be obtained so that the sample mean is within .02 of the population mean
Therefore, we would need to obtain at least 9604 grade-point averages to ensure that the sample mean is within 0.02 of the population mean with 95% confidence.
To determine the required sample size, we need to use the formula n = [(z * σ) / E]^2, where z is the z-score for the desired level of confidence (e.g. 1.96 for 95%), σ is the standard deviation of the population (which we don't know, so we can use a conservative estimate of 1), and E is the desired margin of error (0.02 in this case). Plugging in these values, we get n = [(1.96 * 1) / 0.02]^2 = 9604. So we would need to obtain at least 9604 grade-point averages to ensure that the sample mean is within 0.02 of the population mean with 95% confidence.
To determine the required sample size for standardizing grade point averages on a scale between 0 and 4 with a margin of error of 0.02, we can use the formula n = [(z * σ) / E]^2, where z is the z-score for the desired level of confidence, σ is the standard deviation of the population, and E is the desired margin of error. Assuming a 95% confidence level and a conservative estimate of σ = 1, we find that we would need at least 9604 grade-point averages to ensure that the sample mean is within 0.02 of the population mean.
Therefore, we would need to obtain at least 9604 grade-point averages to ensure that the sample mean is within 0.02 of the population mean with 95% confidence.
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please I need the asnwers with explanation as soon as possible
help me plz plz i really need help
Answer:
she can paint 6 rooms.
Step-by-step explanation:
1/2 x 3= 6 litters
What is the circumference of a circle with a diameter of 4.2 cm?
Answer:
it would be C≈13.19cm
hope this helps :)
Find the general solution of the given differential equationy'' y = 7 sin 2t t cos 2ty(t) =help
The general solution of the given differential equation is the sum of the complementary solution and the particular solution:
y(t) = y_c(t) + y_p(t)
= C1e^t + C2e^(-t) - sin(2t)
where C1 and C2 are arbitrary constants.
This is the general solution of the given differential equation.
To find the general solution of the given differential equation y'' - y = 7sin(2t) - tcos(2t), we can use the method of undetermined coefficients.
Step 1: Find the complementary solution:
We first find the solution to the homogeneous equation y'' - y = 0. The characteristic equation is r^2 - 1 = 0, which has roots r = 1 and r = -1. Therefore, the complementary solution is y_c(t) = C1e^t + C2e^(-t), where C1 and C2 are arbitrary constants.
Step 2: Find the particular solution:
We need to find a particular solution to the non-homogeneous equation y'' - y = 7sin(2t) - tcos(2t). Since the right-hand side of the equation contains sin(2t) and tcos(2t), we assume a particular solution of the form:
y_p(t) = A sin(2t) + B t cos(2t)
Differentiating twice:
y_p''(t) = -8A sin(2t) - 8B t sin(2t) - 4B cos(2t)
Substituting y_p(t) and y_p''(t) into the original differential equation:
(-8A sin(2t) - 8B t sin(2t) - 4B cos(2t)) - (A sin(2t) + B t cos(2t)) = 7sin(2t) - tcos(2t)
Rearranging terms and grouping like terms:
(-7A - 8B t) sin(2t) + (-t - 4B) cos(2t) = 7sin(2t) - tcos(2t)
By comparing coefficients, we have the following equations:
-7A - 8B t = 7 (equation 1)
-t - 4B = -t (equation 2)
From equation 2, we can solve for B:
-4B = 0
B = 0
Substituting B = 0 into equation 1, we can solve for A:
-7A = 7
A = -1
Therefore, the particular solution is y_p(t) = -sin(2t).
Step 3: Find the general solution:
The general solution of the given differential equation is the sum of the complementary solution and the particular solution:
y(t) = y_c(t) + y_p(t)
= C1e^t + C2e^(-t) - sin(2t)
where C1 and C2 are arbitrary constants.
This is the general solution of the given differential equation.
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please help me ..........
Answer:
It’s either A OR B
Step-by-step explanation:
Which of the following expressions have the same value as the mixed number ( ), select ALL correct answers.
Answer:
C,D, and E
Step-by-step explanation:
-29/4 is an improper fraction version of -7 1/4
-7- 1/4 = -7 1/4
-(7 + 1/4) is -29/4
Just make -29/4 into a mixed number, which is -7 1/4
Answer:
Step-by-step explanation: the answer is the last 3 ones because if you add them together, you get -7 1/4. Remember that -(number) = -1(number). So, -(1) = -1(1).
pls help asap screenshot also posted- Which expression is equivalent to the given expression? 180‾‾‾‾√⋅230‾‾
The expression √180 * 2√30 is equivalent to the expression 60√6
What is an equation?An equation is an expression that shows the relationship between two numbers and variables.
The square root is a factor of a number that, when multiplied by itself, gives the original number.
Given the expression √180 * 2√30
Collecting like terms give:
= 2√(180 * 30)
Simplifying:
= 60√6
The expression √180 * 2√30 is equivalent to the expression 60√6
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An amount of $8000 is invested at a simple interest rate of 1.5%. What is the total amount after 3 years?
Answer:
the total amount after 3 year's with an interest rate of 1.5% should be $8,365.427
hElP mE plS anD ty I hAd tO rEpoSt thiS :')
Answer:
1: below its initial height.
2: if Jimmy has 20 balls and Chris take 15,how many balls does Jimmy have?
3: I would want Mrbeast to be the President because he would help everyone.
A firm with $600,000 in sales, cash on hand of $750,000, liabilities of $200,000, and total assets of $1 million has a total asset turnover of
the firm has a total asset turnover of 0.6, which means that for every $1 of total assets, the firm generates $0.6 in sales. This ratio indicates the firm's efficiency in utilizing its assets to generate revenue
Total asset turnover is a financial ratio that measures a company's efficiency in generating sales from its total assets. It is calculated by dividing the total sales by the average total assets. In this case, the firm has $600,000 in sales and total assets of $1 million.
Total Asset Turnover = Total Sales / Average Total Assets
To calculate the average total assets, we sum the beginning and ending total assets and divide by 2:
Average Total Assets = (Beginning Total Assets + Ending Total Assets) / 2
Given that the firm's total assets are $1 million, the average total assets would also be $1 million.
Plugging in the values into the total asset turnover formula:
Total Asset Turnover = $600,000 / $1,000,000 = 0.6
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In the image provided, the circle is centered at point W with ZX←→ and ZY←→ tangent to ⊙W at X and Y, respectively.
Given ∡XWY=75°, what is ∡XZY?
A. 105°
B. 150°
C. 75°
D. 15°
9514 1404 393
Answer:
A. 105°
Step-by-step explanation:
The external angle at Z is the supplement of the internal angle at W.
Z = 180° -75° = 105°
∠XZY = 105°
A square floor has a side length of 8xcubedysquared units. a square tile has a side length of xy units. how many tiles will it take to cover the floor
To cover the square floor with a side length of 8xcubedysquared units using square tiles with a side length of xy units, it will take (64xy^2)/(8xcubedysquared) tiles.
The area of the floor can be calculated by squaring the side length of the floor:
Area of the floor = (8xcubedysquared)^2 = 64x^2(cubedysquared)^2 = 64x^2(cubedysquared)(cubedysquared)
The area of each tile is given by squaring the side length of the tile:
Area of each tile = (xy)^2 = x^2y^2
To determine the number of tiles required to cover the floor, we divide the area of the floor by the area of each tile:
Number of tiles = (Area of the floor) / (Area of each tile) = (64x^2(cubedysquared)(cubedysquared)) / (x^2y^2) = (64xy^2) / (8xcubedysquared)
Thus, it will take (64xy^2)/(8xcubedysquared) tiles to cover the square floor.
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(PLEASE HELP IM TAKING A MATH QUIZ) Seventy parents showed up for a parent meeting at school. Mrs. Quinn set up 12 tables in the library for the meeting. The graph below displays this information.
Step-by-step explanation:
Depends on what the question if th question is how many more tables she need the answer is 1 if it asked how many ppl sit and each table 5 ppl and 12 tables and 1 at the last table other than that in confussed
how to find the value of a,b and c?
Hello !
Method 1 :it is an equilateral triangle (3 equal sides). In an equilateral triangle the angles are all equal so a = b = c.
The sum of the angles of a triangle is always equal to 180°.
so a = b = c = 180°/3 = 60°
Method 2 :it is an equilateral triangle (3 equal sides). In an equilateral triangle the angles are all equal so a = b = c.
A straight angle measures 180°, so b = 180° - 120° = 60°.
so a = b = c = 60°
Answer:
Step-by-step explanation:
This is an equilateral triangle (all angles are equal).
Angles in a triangle add up to 180°.
\(a=b=c=\frac{180}{3} =60\)
When 7 is subtracted from five times a number, the result is greater than twice the sum of the number and 4. Find all the numbers that satisfy the inequality
Given :
When 7 is subtracted from five times a number, the result is greater than twice the sum of the number and 4.
To Find :
All the numbers that satisfy the inequality.
Solution :
Let , the number is x .
Mathematical expression for first term is :
5x - 7
Mathematical expression for second term is :
2(x + 4)
Now , comparing both the expression by given constrain.
\(5x - 7 > 2(x + 4)\\\\5x-7>2x+8\\\\3x>15\\\\x>5\)
So, all the numbers that satisfy the inequality are greater than 5.
Hence , this is the required solution.
What do the coordinates of an undefined slope have in common?
The coordinates of an undefined slope are points that are either the same or have no x-value. In both cases, the slope of a line between these points would be undefined because it would involve dividing by 0, which is not allowed in mathematics. This is because the slope of a line is calculated by dividing the difference in y-coordinates by the difference in x-coordinates, and if the x-coordinates are the same or do not exist, this division would result in an undefined value.
Fill the missing numbers in these fraction sums:
1.) 1/5 + /10 = 1
2.) 1/4 + 9/ = 1
Answer:
1) 8 2) 12
Step-by-step explanation:
Answer:
your answer is
1) 8
2) 12
Hope it’s helps you Buddy
Step-by-step explanation:
~Zayn
At the local dairy farm, kareem buys a 32-oz container of yogurt for $2. 56. Jonah buys a 6-oz container of yogurt for $0. 48. Are the cost, y, in dollars and the amount of yogurt, x, proportional? explain. Write an equation to represent this relationship.
Yes, the cost y in dollars and the amount of yogurt x are proportional the equation is y = 0.08x.
Given:
At the local dairy farm, kareem buys a 32-oz container of yogurt for $2. 56. Jonah buys a 6-oz container of yogurt for $0. 48.
y varies directly as x :
y = kx
k = constant of proportionality
y = 2.56 and x = 32
y = kx
k = y/x
= 2.56/32
k = 0.08
substitute k we get
y = 0.08x.
so x and y are directly proportional.
Therefore Yes, the cost y in dollars and the amount of yogurt x are proportional the equation is y = 0.08x.
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Find the volume and round to the nearest hundredths place when necessary.
Answer:
477
Step-by-step explanation:
Answer:
half of 8 is 4
4^4 = 16
16 x 3.14 = 50.24 (area of a circle)
Now we multiply it by the height:
50.24 x 19 = 954.56 rounded to the nearest hundredths place is:
954.56 yd3 is your answer.
Given that u= [6/5] and v=[-6/4] find 1/3( u-1/2v)
Answer:
\(\frac{-7}{10}\ or \ 0.7\)
Step-by-step explanation:
step 1.
\(\frac{1}{3} (\frac{-6}{4}-\frac{1}{2}(\frac{6}{5}))\)
step 2.
put it in a calculator
step 3
=\(\frac{-7}{10}\ or \ 0.7\)
Help pls and thank you :)
Answer:
Answer choice : 3
Step-by-step explanation:
There are 59 chips numbered from 1 to 59 placed in a barrel. One chip is randomly pulled from the barrel. What is the probability that the number on the chip is greater than or equal to 44? A. 16/17 B. 43/59 C. 43/44 D. 16/59
Answer:
D
Step-by-step explanation:
59 - 44 + 1 = 16.
16/59
Please mark as brainliest!
Answer:
D
Step-by-step explanation:
count 44,45,46... , then count how many numbers you counted
How do you write a system of equations with the solution (-1,-1)? NEED HELP WILL MARK BRAINLIEST!!!
Answer:
start from 0 then move left 1=(-1) down 1=(-1)