Answer:
y<or equal to 5/2x + 5
Step-by-step explanation:
when graphing inequalities, the line is solid when the inequality is also "or equal to". also, the less than sign indicates that the area below the line will be shaded. the y intercept is the y value when x is 0, so + 5. the slope, calculated with rise over run, is 5/2x
What is the value of x?
sin 49° = COS X
Enter your answer in the box.
X =
Answer:
x = 41°
Step-by-step explanation:
Using the cofunction identity
sinx = cos(90 - x) , then
sin49° = cos(90 - 49)° = cos49°
with x = 41°
A vertical cylinder is leaking water at a rate of 4 m³/sec. If the cylinder has a height of 10 m and a radius of 2 m, at what rate is the height of the water changing when the height is 3 m? Submit an exact answer in terms of . Provide your answer below: dh m/sec dt =
The correct solution is: dh/dt = -1/9π m/sec.
Given,
The cylinder is leaking water at a rate of 4 m³/sec.
The cylinder has a height of 10 m and a radius of 2 m.
When the height is 3 m, we need to find out at what rate is the height of the water changing.
To find dh/dt when h = 3 m, we need to use the formula for the volume of a cylinder, that isV = πr²h
Here, h = height of water, r = radius of the cylinder.
We need to differentiate both sides of the formula with respect to time t, that is, dV/dt = πd/dt (r²h)
From the given information, we know that dV/dt = -4 m³/sec (because water is leaking out)
Radius of the cylinder, r = 2 m
Volume of the cylinder, V = πr²h = π × 2² × 10 = 40π m³
Differentiating the formula, we get:dV/dt = π[(d/dt)(r²h)]d/dt(r²h) = [dV/dt] / [πr²]
We need to find dh/dt, so substitute the values in the above formula:
d/dt(r²h) = [dV/dt] / [πr²]d/dt(2² × h) = -4 / [π × 2²]
dh/dt = -4 / [4π]h²dh/dt = -1 / [πh²]When h = 3 m, we get
dh/dt = -1 / [π × (3)²] = -1 / (9π)
Therefore, dh/dt = -1/9π m/sec.
Answer: dh/dt = -1/9π m/sec.
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Based on information from a large insurance company, 68% of all damage liability claims are made by single people under the age of 25. A random sample of 53 claims showed that 41 were made by single people under the age of 25. Does this indicate that the insurance claims of single people under the age of 25 is higher than the national percent reported by the large insurance company? State the null and alternate hypothesis.
No, it doesn't show that single individuals under the age of 25 have more insurance claims than the nationwide percent reported by the big insurance firm.
Hypothesis
Null hypothesis : H0: p = 0.68
Alternative hypothesis : Ha: p > 0.68
A random sample of 53 claims showed that 41 were made by single people under the age of 25.
Thus; p^ = 41/53 = 0.7736
The test statistic is
z = (p^ - p_o)/√(p_o(1 - p_o)/n)
z = (0.7736 - 0.68)/√(0.68(1 - 0.68)/41)
z = 0.0936/0.07285
z = 1.28
The p-value from z-score calculator, using z = 1.28, one tail hypothesis and significance level of 0.05,we have;
P(z > 1.28) = 0.100273
The p-value gotten is greater than the significance value and so we fail to reject the null hypothesis and conclude that there is insufficient evidence to support the claim.
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Determine the degree of the following sequence: -17, 19, 55, 91, 127, 163,...1 st degree4 th degree3 rd degree2 nd degree
-17 19 55 91 127 163
36 36 36 36 36
6^2 6^2 6^2 6^2 6^2
It's a second degree sequence
rewrite without parentheses and simplify (y-5)^2
Answer: (y - 5)² = y² - 10y + 25
Concept:
There are in total three general types of parentheses-squared method:
(a - b)² = a² - 2ab + b²(a + b)² = a² +2ab + b²(a - b) (a + b) = a² - b²Solve:
Given = (y - 5)²
Apparently, the given expression accords with (a - b)², where [y] = [a] and [5] = [b].
(a - b)² = a² - 2ab + b²
(y - 5)² = y² - 2(y)(5) + 5² = y² - 10y + 25
Hope this helps!! :)
Please let me know if you have any questions
Is 82 inches grater than 5feet and 10 inches
Answer:
False, 82 inches is not greater than 5 feet and 10 inches
Step-by-step explanation:
1 feet = 12 inches
5x12=60+10=70
82 is greater than 70.
the different between two possitive nymbers is 48. the lesser number is 1/3 of the greater number. what are the two positive numbers
Let's call the greater number "x" and the lesser number "y". According to the problem, we know that:
x - y = 48 (since the difference between the two numbers is 48)
y = (1/3)x (since the lesser number is one third of the greater number)
Now we can substitute the second equation into the first equation:
x - (1/3)x = 48
Simplifying this equation, we get:
(2/3)x = 48
Multiplying both sides by 3/2, we get:
x = 72
Now that we know x, we can use the second equation to find y:
y = (1/3)x = (1/3)(72) = 24
So the two positive numbers are 72 and 24.
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I need answer with work plz!!! Asap!!!
Answer:
\(40... = = > > < .01\)
The budget for a project on voting trends includes $3200 for hiring undergraduate students, graduate students, and faculty members to conduct interviews on the day before an election. Each undergraduate student will conduct 30 interviews for $100. Each graduate student will conduct 32 interviews for $150. Each faculty member will conduct 33 interviews for $200. No more than 20 interviewers can be hired.(a) How many of each type of interviewer should be hired in order to maximize the number of interviews?(b) What is the maximum number of interviews?
Each type of interviewer should be hired in order to maximize the number of interviews are 0 undergraduate students, 16 graduate students, and 4 faculty members and the maximum number of interviews is 644 according to the statistics given.
If n = the number of interviews, then let x = the number of undergraduate students hired, y = the number of graduate students employed, z = the number of faculty members hired.
The purposeful action is:
maximization of n = 30x + 32y + 33z
The limitations are: x + y + z 20; 100x + 150y + 200z 3200; and 0;
The answer is 644 because x = 0, y = 16, z = 4.
To increase the number of interviews, it should be recommended that 0 undergraduate students, 16 graduate students, and 4 faculty members be hired. There can be a maximum of 644 interviews by statistics given.
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The key difference between the binomial and hypergeometric distribution is that, with the hypergeometric distribution:
A) the random variable is continuous.
B)the trials are independent of each other.
C)the probability of success must be less than 0.5.
D)the probability of success changes from trial to trial.
The key difference between hypergeometric distribution and the binomial is which with the hypergeometric distribution,the probability of success changes from trial to trial.
The hypergeometric distribution is used when sampling without replacement whereas the binomial distribution is used when sampling with replacement.
We know in the hypergeometric distribution,
Each trial affects the probability of success for the remaining trials which is not the case in the binomial distribution where the trials are independent of each other.
The random variable in both distributions is discrete, not continuous.
There is no need for the probability of success to be less than 0.5 in either distribution.
Hence,
The key difference between the binomial and hypergeometric distribution is that with the hypergeometric distribution, the probability of success changes from trial to trial.
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HELPPPPPP PLEASE 98 points
Find the percent change from the first value to the second.
36; 63
The change is an increase increase or decrees by how much %.
Answer:
75%
increase
What is the area of EFG? ILL GIVE BRAINLIEST!!!!
Answer:
36
Step-by-step explanation:
8*9=72 72/2=36
Yellow Bird's flight path can be modeled by the quadratic equation y = -x2 +14x-24
Answer:
(x-4)(x-3)
Step-by-step explanation:
quadratic equation is always squared so I will squared it myself
steps to solve 6-3y=-6
Answer:
y = -4
Step-by-step explanation:
6 - 3y = 6
now were going to get the variable and the numbers on different sides
6 - 3y - 6 = - 3y
6 + 6 = 12
now divide each side by -3
-3y / -3 = y
12 / -3 = -4
y = -4
A dinner plate has a circumference of 113.04 cm. What is the area of the dinner plate? (Use 3.14 for pi)
A.
56.52 cm2
B.
2,034.72 cm2
C.
226.08 cm2
D.
1,017.36 cm2
Answer:
D
Step-by-step explanation:
Answer the following
5/3x2=
2/9x12=
8/5x4=
7/4x10=
Answer:
Below,...!
Step-by-step explanation:
#1 = 5 / 3 * 2 = 3.333...
#2 = 2 / 9 * 12 = 2.666...
#3 = 8 / 5 * 4 = 6.4
#4 = 7 / 4 * 10 = 17.5
Chow,...!
Answer:
3.33 ( 5 over 3 times 2 )
2.66 ( 2 over 9 times 12 )
6.4 ( 8 over 5 times 4 )
17.5 ( 7 over 4 times 10 )
Step-by-step explanation:
hope this helps
What is 497,349 plus 529,853
Answer:
1027202
Step-by-step explanation:
1,027,202
You are in high school you should know how to add.
Write the sentence as an equation.
341 is the same as the product of k and 273, minus 79
Answer:
341 = 273k - 79 or 273k - 79 = 341
if two lines lie in the same plane and are perpendicular to the same line they are perpendicular true or false?
If two lines lie in the same plane and are perpendicular to the same line they are perpendicular is TRUE.
What are parallel lines?Two lines in the same plane that are equally spaced apart and never cross each other are said to be parallel lines.
Parallel lines are those lines in which slopes are the same and the distance between them remains constant.
If a line is perpendicular to another then they will make 90 degrees at the intersection.
So if another line is also making 90 degrees it means both lines must be in the same direction so they will be parallel as given in the image below.
Hence "If two lines lie in the same plane and are perpendicular to the same line they are perpendicular is TRUE".
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nds-
11
12 13 14 15
1612
A regular polygon is drawn in a circle so that each vertex is on the circle and is connected to the center by a radius.
Let sides be n
Central angle is divided by n sides of polygon
Hence
360/n=40°n=360/40n=9It has sides as 9
98.42 divided by 1.8
Answer:
4921/90
Step-by-step explanation:
a university requires its biology majors to take a course called bioresearch. the prerequisite for this course is that students must have taken either a statistics course or a computer course. by the time they are juniors, 52% of the biology majors have taken statistics, 23% have had a computer course, and 7% have done both. what is the probability that a randomly selected junior biology major has taken either statistics or a computer course (or both)? please enter your answer as a decimal, rounded to two places after the decimal point.
The probability that a randomly selected junior biology major has taken either a statistics or a computer course is 0.68
To find the probability that a randomly selected junior biology major has taken either a statistics or a computer course (or both), we'll use the formula:
P(A or B) = P(A) + P(B) - P(A and B)
Where:
- P(A) is the probability of having taken a statistics course (52% or 0.52)
- P(B) is the probability of having taken a computer course (23% or 0.23)
- P(A and B) is the probability of having taken both courses (7% or 0.07)
Now, plug in the values:
P(A or B) = 0.52 + 0.23 - 0.07
P(A or B) = 0.68
So, the probability that a randomly selected junior biology major has taken either a statistics or a computer course (or both) is 0.68, or 68%.
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finding rise and run
Answer:
Up 6 over 8, 6/8, or .75/100
Step-by-step explanation:
I'm not sure how to explain it but yeah I'm pretty sure this is it
For the linear regression y = ẞ1 + ẞ2x + e, assuming that the sum of squared errors (SSE) takes the following form:
SSE = 382 +681 +382 + 18ẞ1ẞ2
Derive the partial derivatives of SSE with respect to B1 and B2 and solve the optimal values of these parameters.
a. B₁ = B1
b. B₂ =
The optimal values of these parameters are:
a. β₁ = 0
b. β₂ = 0
The linear regression y = β1 + β2x + e, assuming that the sum of squared errors (SSE) takes the following form:
SSE = 382 + 681 + 382 + 18β1β2
Derive the partial derivatives of SSE with respect to β1 and β2 and solve the optimal values of these parameters.
Given that SSE = 382 + 681 + 382 + 18β1β2 ∂SSE/∂β1 = 0 ∂SSE/∂β2 = 0
Now, we need to find the partial derivative of SSE with respect to β1.
∂SSE/∂β1 = 0 + 0 + 0 + 18β2 ⇒ 18β2 = 0 ⇒ β2 = 0
Therefore, we obtain the optimal value of β2 as 0.
Now, we need to find the partial derivative of SSE with respect to β2. ∂SSE/∂β2 = 0 + 0 + 0 + 18β1 ⇒ 18β1 = 0 ⇒ β1 = 0
Therefore, we obtain the optimal value of β1 as 0. Hence, the partial derivative of SSE with respect to β1 is 18β2 and the partial derivative of SSE with respect to β2 is 18β1.
Thus, the optimal values of β1 and β2 are 0 and 0, respectively.
Therefore, the answers are: a. β₁ = 0 b. β₂ = 0
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4. LA and B form a linear pair. If MZA = (6x - 19) and mZB = (11x-22), find mZB. A. 59" B. 65 C. 115 D. 121
Answer:
<B =121
Step-by-step explanation:
If the angles form a linear pair, they add to 180
6x-19 + 11x-22 = 180
Combine like terms
17x -41 = 180
Add 41 to each side
17x-41+41 = 180+41
17x = 221
Divide by 17
17x/17 =221/17
x =13
<b = 11x-22 = 11*13 -22 = 143-22 =121
3. Find the standard form of the equation of the parabola with a vertex at the origin and a focus at (0-4).
Step-by-step explanation:
y=5(x+1/5)² -36/5
y=5(x+1/5)² -36/5
What is the solution set to the inequality (4x-3)(2x-1)>0?
Answer:
(-infinity,1/2) union (3/4,+infinity)...hope it helped you
−89 x 12 = c
what does c equal?
d x 88 = −88,000
what does d equal?
Answer:
c = -1068
d = -1000
Step-by-step explanation:
c = -89 × 12
c = -1068
d × 88 = - 88,000
d = - 88,000 ÷ 88
d = - 1000
Hope this helps!
pls like and mark as brainliest!
An object of mass 480 kg is in free fall in a vacuum where there is no air resistance. Determine the acceleration of the object.
Since the object is in free fall the acceleration of the object is approximately
\(_{}9.81ms^{-2}\)let f and g be differentiable functions for which the following information is known: f(2) = 5, g(2) = 3, f′(2) = 1 2, g′(2) = 2. let h be the new function defined by the rule h(x) = 3f(x) −4g(x).
The value of h(x) at x = 2 is 3.
Given that f(x) and g(x) are differentiable functions with f(2) = 5, g(2) = 3, f′(2) = 1/2, and g′(2) = 2, and the new function h(x) is defined as h(x) = 3f(x) − 4g(x), we can find h'(2) by using the derivative rules for sums and products:
h'(x) = 3f'(x) - 4g'(x)
By plugging in the given values for f'(2) and g'(2), we get:
h'(2) = 3(1/2) - 4(2) = 3/2 - 8 = -6.5
Therefore, the derivative of h(x) at x = 2 is -6.5.
To find h(2), we can plug in the given values for f(2) and g(2) into the equation for h(x):
h(2) = 3f(2) - 4g(2) = 3(5) - 4(3) = 15 - 12 = 3
In conclusion, the derivative of h(x) at x = 2 is -6.5 and the value of h(x) at x = 2 is 3.
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