Help please!
.
.
.

Help Please! . . .

Answers

Answer 1

Answer:45

Step-by-step explanation:


Related Questions

The acceleration, in feet per second per second, of an object is given by the acceleration function a(t)=2sint+1. The initial velocity is v(0)=0 and the initial position is s(0)=3. Find the equation of the velocity function. Find the position function and the average value of the position function from time t = 2 seconds to t = 5 seconds. Show all your work.

Help pls

The acceleration, in feet per second per second, of an object is given by the acceleration function a(t)=2sint+1.

Answers

Using the derivative of the velocity, the average value of the position function from t = 2 seconds to t = 5 seconds is 14.5.

What is the position and average value of the position function from t = 2 to t = 5?

Given:

Acceleration function, a(t) = 2sin(t) + 1

Initial velocity, v(0) = 0

Initial position, s(0) = 3

To find:

Velocity function, v(t)

Position function, s(t)

Average value of the position function from t = 2 seconds to t = 5 seconds

Solution:

We know that acceleration is the derivative of velocity, and velocity is the derivative of position. So we can find the velocity and position functions by integrating the acceleration function.

Velocity function:

\(v(t) = \int a(t) dt\\v(t) = \int (2sin(t) + 1) dt\\v(t) = -2cos(t) + t + C1\)

We know that the initial velocity, v(0) = 0. Substituting this value in the above equation, we get:

\(0 = -2cos(0) + 0 + C1\\C1 = 2\)

Therefore, the velocity function is:

\(v(t) = -2cos(t) + t + 2\)

Position function:

\(s(t) = \int v(t) dt\\s(t) = \int (-2cos(t) + t + 2) dt\\s(t) = 2sin(t) + \frac{1}{2} t^2 + 2t + C2\)

We know that the initial position, s(0) = 3. Substituting this value in the above equation, we get:

\(3 = 2sin(0) + 0 + 0 + C2\\C2 = 3\\\)

Therefore, the position function is:

\(s(t) = 2sin(t) + \frac{1}{2} t^2 + 2t + 3\)

Average value of the position function from t = 2 seconds to t = 5 seconds:

We can find the average value of the position function using the following formula:

\(Avg = (1/(b-a)) * \int(a,b) f(t) dt\)

Here, a = 2 and b = 5. So, substituting the values in the above formula, we get:

\(Avg = (1/(5-2)) * \int(2,5) (2sin(t) + \frac{1}{2} t^2 + 2t + 3) dt\\Avg = \frac{1}{3} * [ -2cos(t) + 1/6 t^3 + t^2 + 2t ] \eval(2,5)\\\)

\(Avg = \frac{1}{3} * [ (-2cos(5) + 1/6 (5^3) + 5^2 + 25) - (-2cos(2) + 1/6 (2^3) + 2^2 + 22) ]\\Avg = 14.5\)

Therefore, the average value of the position function from t = 2 seconds to t = 5 seconds is 14.5.

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8. The 2003 Zagat Restaurant Survey provides food, decor, and service ratings for some of the top restaurants across the United States. For 15 top-ranking restaurants located in Boston, the average price of a dinner, including one drink and tip, was $48.60. You are leaving for a business trip to Boston and will cat dinner at three of these restaurants. Your company will reimburse you for a maximum of $50 per dinner. Business associates familiar with these restaurants have told you that the meal cost at one-third of these restaurants will exceed $50. Suppose that you randomly select three of these restaurants for dinner. a) What is the probability that none of the meals will exceed the cost covered by your company

Answers

Answer:

0.2637

Step-by-step explanation:

Population size is top 15 ranking restaurants.

Number of draws = 3

Number of observed successes = 5

Probability formula :  [r . x } { n -r] [n - x]

solving the equation we get 24 / 91 which is approximately 0.2637

Compare the key features of f(x)=2x-3 and the
linear function g shown below.

23. What do the slopes and the y intercepts
indicate about the linear functions f and g?

Compare the key features of f(x)=2x-3 and thelinear function g shown below.23. What do the slopes and

Answers

Answer:

f slopes was  \(\frac{3}{2}\)  ,the y intercepts was -3

g slopes was \(-\frac{1}{3}\),the y intercepts was -2

Step-by-step explanation:

g slopes :

functions g has point (0,-2) and (3,-3)

the slopes =\(\frac{-2-(-3) }{0-3} =-\frac{1}{3}\)

Multiple choice helpppppppppppppppppppppppp

Multiple choice helpppppppppppppppppppppppp

Answers

Answer:

2nd number is correct

Here's your solution

=> 2p(-3p^2 + 4p - 5)

=> multiple 2p with whole

=>. -6p^3 + 8p^2 - 10p

this is your answer

hope it helps

PLSSS HELPPPPP I WIILLL GIVE BRAINLIEST!!!!!
PLSSS HELPPPPP I WIILLL GIVE BRAINLIEST!!!!!
PLSSS HELPPPPP I WIILLL GIVE BRAINLIEST!!!!!

What does it mean to be a linear function?

Answers

Answer:

It means if you graph the function, the line is straight.

also s p a m

Answer:

Linear functions are those whose graph is a straight line. A linear function has the following form. y = f(x) = a + bx. A linear function has one independent variable and one dependent variable.

Step-by-step explanation:

plzz mark brianliest i needdddd

What is the slope of the line that passes through (2,12) and (4,20)
A- -2
B-2
C- -4
D-4

Answers

Answer:

D. 4

Step-by-step explanation:

Use rise over run, (y2 - y1) / (x2 - x1)

Plug in the points:

(y2 - y1) / (x2 - x1)

(20 - 12) / (4 - 2)

8 / 2

= 4

So, the slope is 4.

If the data is very consistent and has very little spread, the MAD would be _____than the MAD of data that has more spread. ​

A: Larger
B: Smaller
C: The same

Answers

Step-by-step explanation:

The MAD represents the average distance each data value is away from the mean. A data distribution can be described in terms of its center, spread, and shape. The center can be measured by the mean. The spread can be measured by the mean absolute deviation (MAD).

Help please, ill give 5 stars, and brainly ofc (if correct)

Help please, ill give 5 stars, and brainly ofc (if correct)
Help please, ill give 5 stars, and brainly ofc (if correct)

Answers

Answer:

Step-by-step explanation:

part a = 1 x 4

part b = b

Answer:

y=2x+25

the graph is B.

Step-by-step explanation:

Need Help You Can Get 35 point!!!
The width of a rectangular field is represented by x meters. The length of the field is 10 more than twice its width . The area of the field is 5500m^2


​Part A

​Write an equation that can be used to determine the dimensions, in meters, of the field.


Part B

What is the width, in meters, of the field?

​The width is ( ) meters.

Need Help You Can Get 35 point!!!The width of a rectangular field is represented by x meters. The length

Answers

Part A: The equation that can be used to determine the dimensions, in meters, of the field is 5500 = 2x² + 10x

Part B: width is 50 meters.

How to determine the value

The formula for calculating the area of a rectangle is expressed with the equation;

A = lw

Such that the variables are expressed as;

A is the areal is the lengthw is the width

We then have that;

l = 2x + 10

Substitute the values

5500 = (2x + 10)(x)

expand the bracket

5500 = 2x² + 10x

2x² + 10x - 5500

x² + 5x - 2750

x² + 55x - 50x - 2750

x(x + 55) - 50(x + 55)

x = 50 meters

Length = 2(50) + 10

Length = 100 + 10 = 110 meters

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Find the length of side X in simple radical form with a rational denominator

Answers

The length of side X in simple radical form with a rational denominator is 25/√3.

What is a 30-60-90 triangle?

In Mathematics and Geometry, a 30-60-90 triangle is also referred to as a special right-angled triangle and it can be defined as a type of right-angled triangle whose angles are in the ratio 1:2:3 and the side lengths are in the ratio 1:√3:2.

This ultimately implies that, the length of the hypotenuse of a 30-60-90 triangle is double (twice) the length of the shorter leg (adjacent side), and the length of the longer leg (opposite side) of a 30-60-90 triangle is √3 times the length of the shorter leg (adjacent side):

Adjacent side = 5/√3

Hypotenuse, x = 5 × 5/√3

Hypotenuse, x = 25/√3.

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

Find the length of side X in simple radical form with a rational denominator

Function c
is defined by the equation c(n)=50+4n
. It gives the monthly cost, in dollars, of visiting a gym as a function of the number of visits, n
.

True or False? The inverse function is as follows:

n=(c(n) − 50)×4
Responses

Answers

Answer:

False

Step-by-step explanation:

1. The inverse function should have c(n) isolated
2. When finding the inverse of a function, the variables c(n) and n are interchanged (and then c(n) is isolated).
It would look like this --->c(n)=50+4n--->n=50+4(c(n)) ---> c(n)=(n-50)/4

In a pre algebra class containing 43 students, there are 4 freshman, 35 sophomores, and 4 juniors. what fraction of the class are sophomores

Answers

The fraction of the class that is sophomores is \(35/43\).

The fraction of the class that is sophomores, divide the number of sophomores by the total number of students in the class.

Number of sophomores = 35

Total number of students = 43

Fraction of sophomores = (Number of sophomores)/(Total number of students Fraction of sophomores)

Fraction of sophomores  \(= 35 / 43\)

Therefore, the fraction of the class that are sophomores is = \(35/43\).

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Kwame is given the graph below.


Which of the following best describes the graph?
a quadratic equation with differences of 1, then 2, then 4, ...
an exponential function with a growth factor of 2
a quadratic function with a constant difference of 2
an exponential function with growth factors of 1, then 2, then 4, ..

Answers

The best description of the graph is "a quadratic function with a constant difference of 2."

A quadratic function is a function of the form f(x) = ax^2 + bx + c, where a, b, and c are constants. In a quadratic function, the graph forms a parabola.

In the given graph, if the differences between consecutive points on the graph are constant and equal to 2, it indicates a constant difference in the y-values (vertical direction) as the x-values (horizontal direction) increase. This is a characteristic of a quadratic function.

On the other hand, an exponential function with a growth factor of 2 would result in a graph that increases at an increasing rate, where the y-values grow exponentially as the x-values increase. This is not observed in the given graph.

Therefore, based on the information provided, the graph best represents a quadratic function with a constant difference of 2.

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The length of a rectangle multilayered by 3 is equal to 4 times its width. The perimeter is 8 2/5 feet. Find the length and the width.

Answers

Answer:
W=1 4/5 feet
L= 2 2/5 feet
Have a great day

The required length of the rectangle is 12/5 feet and the width is 9/5 feet.

What is the equation model?

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
Let's denote the length of the rectangle as L and the width as W.

From the problem statement, we know that:

3L = 4W (equation 1)

We also know that the perimeter P is given by:

P = 2L + 2W = 8 2/5 feet

Multiplying both sides by 5 to get rid of the fraction, we get:

10L + 10W = 42

Dividing by 2, we get:

5L + 5W = 21 (equation 2)

Now we can use equations 1 and 2 to solve for L and W.

First, we can substitute equation 1 into equation 2 to get an equation in terms of W:

5L + 15L/4 = 21

Multiplying both sides by 4, we get:

20L + 15L = 84

35L = 84

L = 84/35 = 12/5 feet

Now we can substitute the value of L into equation 1 to get the value of W:

3L = 4W

3(12/5) = 4W

W = 9/5 feet

Therefore, the length of the rectangle is 12/5 feet and the width is 9/5 feet.

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will mark brianliest please help

will mark brianliest please help

Answers

Answer:

See below.

Step-by-step explanation:

7x^2 = 343                     Divide both sides by 7

7x^2/7 = 343/7

x^2 = 49                         Take the square root of both sides.

sqrt(x^2) = sqrt(49)

x = +/- 7

Answers

7- 7sqrt(49)- sqrt(49)

I think the last two are kind of iffy. I'm not sure you can call them solutions, but the question probably assumes they are. If you use all four answers and get it wrong, them submit +7 and - 7.  

A sight-seeing tour bus can carry 68 people. If 330 people want to go sight-seeing on the bus, what is the minimum number of trips the bus will have to make to accommodate everyone?

Answers

The minimum number of trips the bus will have to make to accommodate everyone is 5.

To find the minimum number of trips the bus needs to make, we divide the total number of people by the capacity of the bus.

1. Divide the total number of people (330) by the capacity of the bus (68):

  330 / 68 = 4.85 (rounded to the nearest whole number)

2. The result is approximately 4.85, which means that 4 trips will not be enough to accommodate everyone.

3. Since we can't have a fraction of a trip, we need to round up to the nearest whole number to ensure that everyone is accommodated.

4. Therefore, the minimum number of trips the bus will have to make is 5, as it will require 5 full trips to transport all 330 people.

It's important to note that on the fifth trip, the bus will not be completely full, as only 10 people will be left to transport. However, this is the minimum number of trips needed to ensure that everyone can go sight-seeing on the bus.

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7 – 2 • 5 + 9 • 3

Question 1 options:

24

–30


102

18

Answers

Answer:

-30

Step-by-step explanation:

7 - 2 • 5 + 9 • 3

7 - 10 + 27

7 - 37

-30

\(\huge\text{Hey there!}\)


\(\mathsf{7 - 2 \times 5 + 9 \times 3}\)

\(\mathsf{= 7 - 2(5) + 9(3)}\)

\(\mathsf{= 7 - 10 + 9(3)}\)

\(\mathsf{= 7 - 10 + 27}\)

\(\mathsf{= -3 + 27}\)

\(\mathsf{= 24}\)


\(\huge\text{Therefore, your answer should be: }\)

\(\huge\boxed{\textsf{Option A. 24}}\)


\(\huge\text{Good luck on your assignment \& enjoy your day!}\)


~\(\frak{Amphitrite1040:)}\)

The number of sales of cars sold from January to November are 28, 20, 49, 29, 38, 40, 45, 49, 50, 55 and 60. Find the median and modal sales.

Answers

The Median and the modal sales is 45 and 49 respectively.

What is a median?

A median simply means the middle number when the number are arranged in ascending order. The mode is the number that appears most.

Since the number of sales of cars sold from January to November are 28, 20, 49, 29, 38, 40, 45, 49, 50, 55 and 60, this will be arranged as:

20, 28, 29, 38, 40, 45, 49, 49, 50, 55, 60

Therefore, the middle number is 45 and mode is 49.

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what is 15 times 7/5 compared to 15 equal?

Answers

Answer:

I do not know

Step-by-step explanation:

In designing an experiment involving a treatment applied to 4 test​ subjects, researchers plan to use a simple random sample of 4 subjects selected from a pool of 31 available subjects.​ (Recall that with a simple random​ sample, all samples of the same size have the same chance of being​ selected.) Answer the question below.
What is the probability of each simple random sample in this​case?

Answers

Answer:

The probability is  \(p(n ) = 3.18*10^{-5}\)

Step-by-step explanation:

From the question we are told that

     The population size is  N =  31

      The sample size  n =  4  

 

Generally the number of way by which the n  can be selected from N is mathematically represented as

          \(\left N} \atop {}} \right. C_n = \frac{N! }{(N-n)!n!}\)

=>       \(\left 31} \atop {}} \right. C_4 = \frac{31! }{(31-4)!4!}\)

=>       \(\left 31} \atop {}} \right. C_4 = \frac{31 * 30 * 29 * 28* 27! }{27! * 4*3 * 2 * 1 }\)

=>        \(\left 31} \atop {}} \right. C_4 = \frac{ 755160 }{ 24}\)

=>        \(\left 31} \atop {}} \right. C_4 = 31465\)

The number of ways of selecting a particular sample size is  is   \(k = 1\)

Therefore the probability of each simple random sample in this​ case is mathematically evaluated as  

           \(p(n ) = \frac{1}{31465}\)  

           \(p(n ) = 3.18*10^{-5}\)

Study this table.

x
y
–3
–2
–2
0
0
4
4
12

Which best describes the function represented by the data in the table?
linear with a common ratio of 2
linear with a common first difference of 2
quadratic with a common ratio of 2
quadratic with a common first difference of 2

Answers

The first one linear with a common ratio of 2

What postulate/theorem can be used to prove the following triangles congruent?

What postulate/theorem can be used to prove the following triangles congruent?

Answers

Answer:

SAS

Step-by-step explanation:

2 sides and 1 angle are congurent

Answer:

The S.A.S rule can be used to prove the following triangles congruent.

Step-by-step explanation:

The S.A.S rule is when 2 sides and the angle in that triangle are equal to the 2  sides and angle of the other triangle, then u can considere that triangle congruent.


Which is the definition of a ray?

a part of a line that has one endpoint and extends indefinitely in one direction
the set of all points in a plane that are a given distance away from a given point
lines that lie in the same plane and do not intersect
a part of a line that has two endpoints

Answers

A Ray is a line that has one endpoint but keeps extending in the opposite direction!!! Hope this helped!

The definition of a ray is a part of a line that has one endpoint and extends indefinitely in one direction

A ray is part of a line that has one endpoint and extends indefinitely in one direction and has the folowing properties.

It has one starting point called its endpoint. It does not have height or width but has length. But, its length is not measurable since it extends forever.

So, the definition of a ray is a part of a line that has one endpoint and extends indefinitely in one direction.

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O LINEAR EQUATIONS AND INEQUALITIES
Finding a percentage of a total amount: Real-world situations
Das
A file that is 244 megabytes is being downloaded. If the download is 18.5% complete, how many megabytes have been downloaded? Round your answer to the
nearest tenth.
megabytes

Answers

The size of the file that has been downloaded is 50 megabytes.

Given total size of the file is 244 megabytes

The percentage that completed the download till now = 18.5%

We have to determine the size of the file downloaded till now can be written as

= 18.5 % of 244

= 18.5 / 100 * 244

= 45.14 megabytes

≈ 50 megabytes

The size of the file that has been downloaded is 50 megabytes.

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3 1/4 quarts in pints

Answers

6.5 pints.

3.25 x 2 = 6.5 (There are 2 pints in a quart)

Find an equation for the line that passes through the points (-1,-4) and (5,-2)

Answers

Linear Equations

Linear equations are typically organized in slope-intercept form:

\(y=mx+b\)

m = the slope of the lineb = the y-intercept (the value of y when the line crosses the y-axis)

To determine a linear equation in slope-intercept form:

Find the slopePlug the slope into y=mx+bFind the y-interceptPlug the y-intercept into y=mx+b

Solving the Question

We're given:

The line passes through the points (-1,-4) and (5,-2)

First, find the slope of the line (m):

\(m=\dfrac{y_2-y_1}{x_2-x_1}\) where two points that fall on the line are \((x_1,y_1)\) and \((x_2,y_2)\)

⇒ Plug in the given points (-1,-4) and (5,-2):

\(m=\dfrac{-2-(-4)}{5-(-1)}\\\\m=\dfrac{-2+4}{5+1}\\\\m=\dfrac{2}{6}\\\\m=\dfrac{1}{3}\)

⇒ Therefore, the slope of the line is \(\dfrac{1}{3}\). Plug this into y=mx+b:

\(y=\dfrac{1}{3}x+b\)

Now, determine the y-intercept (b):

\(y=\dfrac{1}{3}x+b\)

⇒ Plug in one of the points and solve for b:

\(-4=\dfrac{1}{3}(-1)+b\\\\-4=-\dfrac{1}{3}+b\\\\-4+\dfrac{1}{3}=b\\\\b=-\dfrac{11}{3}\)

⇒ Therefore, the y-intercept is \(-\dfrac{11}{3}\). Plug this back into our original equation:

\(y=\dfrac{1}{3}x-\dfrac{11}{3}\)

Answer

\(y=\dfrac{1}{3}x-\dfrac{11}{3}\)

Y=5x+3 graph the line

Answers

Answer:

The graph is in the pic

Step-by-step explanation:

Y=5x+3 graph the line

What do 17, 19, 46, and 55 have in common?

Answers

Answer: They all have a sum of there digits that is an even number.

Step-by-step explanation:

What is the value of 1/3 + 3/4

Answers

Answer:

13/12 or 1 1/12

Step-by-step explanation:

find the common denominator

I really need help! Brainliest awarded to correct answer
:))

I really need help! Brainliest awarded to correct answer :))

Answers

Answer:

Can you be more specific on this question?

Step-by-step explanation:

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