What is the runner’s average rate of change between the hours: 0.5 and 2? mph 1.5 and 2.5? mph Average Rate of Change

Answers

Answer 1

Answer:

4mph

5mph

slower

Step-by-step explanation:

i did it

Answer 2
Final answer:

To calculate the average rate of change, divide the total change in distance by the total change in time. Without the specific distance covered in the given durations, it's impossible to provide absolute answers, but an example calculation has been given using an average speed of 9.5 mph.

Explanation:

In your question, the average rate of change refers to the change in distance with respect to time, also known as velocity or speed. Since there are no concrete values mentioned in your question for the distances covered by a runner between time 0.5 and 2 hours, and 1.5 to 2.5 hours, it would be impossible to provide an accurate answer without such data.

However, allow me to explain how you could calculate these values. If you assume that a runner has the marathon runner's average speed of 9.5 miles per hour, then the average rate of change, or average speed, over a certain time period is just the total change in distance divided by the total change in time. For instance, if the runner covered 9.5 miles between 0.5 and 2 hours, then the average rate of change would be 9.5 miles per 1.5 hours, or approximately 6.33 mph. This same method would apply to calculations between 1.5 and 2.5 hours.

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Related Questions

Joe’s weekly pay increased from $80 to $100. What is the percent increase in Joe’s weekly pay?

10%

40%

25%

20%

Answers

20% is joes weekly
100-80 =20

3333​% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is​ (a) exactly​ two, (b) more than​ two, and​ (c) between two and five inclusive. if​ convenient, use technology to find the probabilities.

Answers

a. at r = 2

P = [10! / (10 – 2)! 2!] * 0.33^2 * 0.67^(10 – 2)

P = 0.1989 ~ 0.20               (answer)

 

 

b. We deduct the values of P when r = 0, r = 1, r = 2 from 1 to get all values when r > 2

at r = 0

P = [10! / (10 – 0)! 0!] * 0.33^0 * 0.67^(10 – 0)

P = 0.0182

 

at r = 1

P = [10! / (10 – 1)! 1!] * 0.33^1 * 0.67^(10 – 1)

P = 0.0898

 

so for r > 2, the probability is:

P = 1 – (0.1989 + 0.0182 + 0.0898)

P = 0.6931            (answer)

 

 

c. at r = 3

P = [10! / (10 – 3)! 3!] * 0.33^3 * 0.67^(10 – 3)

P = 0.2614

 

at r = 4

P = [10! / (10 – 4)! 4!] * 0.33^4 * 0.67^(10 – 4)

P = 0.2253

 

at r = 5

P = [10! / (10 – 5)! 5!] * 0.33^5 * 0.67^(10 – 5)

P = 0.1332

 

So when r is between 2 and 5 inclusive, the probability is:

P = 0.1989+ 0.2614 + 0.2253 + 0.1332

P = 0.8188            (answer)

 

 

Kevin has had a checking account for a month. As he reconciles his account, Kevin notices that the dates on his check register do not match the dates on his account statement. He immediately calls the bank to find out what the problem is. What is the bank's likely response to Kevin?
A- "you obviously made a mistake and you should be careful"
B-"sorry we entered the wrong dates but thanks for telling us, we will fix it immediately"
C-"theres a serious problem with your account, please bring us all your records and info so we can check it"
D-"The date that the check is written is usually a few days before it is cashed. We record when it was cashed and you record when its written"

Answers

The most likely answer is D) "The date that the check is written is usually a few days before it is cashed. We record when it was cashed and you record when its written". 

There is usually a delay between when you write someone a check (and record it in your ledger) and when that person cashes it (when the bank records it). 

The bank's likely response to Kevin's concern would be that checks are recorded on the date they are cashed, not on the date they are written, which explains the mismatch in dates Kevin observed. Balancing one's checkbook regularly is important for managing personal finances.

When Kevin has noticed that the dates on his check register do not match the dates on his account statement and contacts the bank, the bank's likely response will be "The date that the check is written is usually a few days before it is cashed. We record when it was cashed and you record when it's written." This is a common situation in personal finance and is related to the cash basis of accounting that most individuals use to manage their finances. The difference in dates arises because checks are processed and cleared by the bank on the date they are cashed, not on the date they are written. It's important for individuals to balance their checkbooks regularly to manage money, keep track of cash flow, and avoid overdraft fees.

A. use the zero product

Answers

It is usually used to solve equations.
Do you have an equation you need to solve?

If c = 0, set ax + b = 0 and solve for x.

If c is negative, there is no real answer.

If c is positive, then solve the equation below:

[tex]ax + b = \pm \sqrt{c} [/tex]

A radio station gives away $15 to every 15th caller, $25 to every 25th caller, and free concert tickets to every 100th caller. When will the station first give away all three prizes to one caller? PLEASE HELP.

Answers

to the 175th caller all the numbers go into 175 

Answer:

The station first give away all three prizes to 300th caller.

Step-by-step explanation:

A radio station gives away $15 to every 15th caller, $25 to every 25th caller, and free concert tickets to every 100th caller.

To get the answer we need to calculate L.C.M.  of 15, 25, 100.

15 = 3 x 5

25 = 5 x 5

100 = 2 x 2 x 5 x 5

LCM is = 2 x 2 x 3 x 5 x 5 = 300.

Hence, the station first give away all three prizes to 300th caller.

9(x + 3) = 108 what does 9x equal and i need major help on how to do this in genral

Answers

9(x + 3) = 108

First distribute the 9 to everything inside the parenthesis by multiplying them.
9x + 27 = 108

Now subtract 27 from both sides

9x + 27 (-27) = 108 (-27)

9x = 81

divide 9 from both sides

9x/9 = 81/9

x = 9

9x = 81

hope this helps
Here is your answer:                                                                                                                                                                                                                                                                First write the equation:                                                                                          9x+27=108                                                                                                           Subtract 27 on each side 108-27=81                                                                     Then divide 9 by 81 9/81=9                                                                                   Your answer is x=9    

Simplify i12

-1

-i

i

1

Answers

Answer:

[tex]i^{12}=1[/tex]

Last option is correct.

Step-by-step explanation:

We have to simplify the expression [tex]i^{12}[/tex]

We can rewrite this expression using the properties [tex](a^m)^n=a^{mn}[/tex]

[tex](i^4)^{3}[/tex]

Now, we know that [tex]i^4=1[/tex]

Hence, we have

[tex](1)^{3}[/tex]

On simplifying, we get

[tex]1[/tex]

Thus, the simplified form is 1.

Last option is correct.

Answer:

it's 1

Step-by-step explanation:

Simplify open parentheses x to the 2 ninths power close parentheses to the 3 eighths power

Answers

[tex]\bf a^{\frac{{ n}}{{ m}}} \implies \sqrt[{ m}]{a^{ n}} \qquad \qquad \sqrt[{ m}]{a^{ n}}\implies a^{\frac{{ n}}{{ m}}}\\\\ -------------------------------\\\\ \left( x^{\frac{2}{9}} \right)^{\frac{3}{8}}\implies x^{\frac{2}{9}\cdot \frac{3}{8}}\implies x^{\frac{6}{72}}\implies x^{\frac{1}{12}}\implies \sqrt[12]{x}[/tex]
If this is correct: (x^(2/9))^(3/8) 
Then it would be x^(1/12)

Find all numbers such that a third of a number increased by half that number is at least 3 less than that same number.

Answers

Answer:

All the numbers are less than and equal to 18.

Step-by-step explanation:

To find : All numbers such that a third of a number increased by half that number is at least 3 less than that same number ?

Solution :

Let the number be 'x',

A third of a number is [tex]\frac{x}{3}[/tex]

Half that number is [tex]\frac{x}{2}[/tex]

3 less than that same number is [tex]x-3[/tex]

A third of a number increased by half that number is at least 3 less than that same number is written as,

[tex]\frac{x}{3}+\frac{x}{2}\geq x-3[/tex]

[tex]\frac{2x+3x}{6}\geq x-3[/tex]

[tex]\frac{5x}{6}\geq x-3[/tex]

[tex]5x\geq 6x-18[/tex]

[tex]5x-6x\geq -18[/tex]

[tex]-x\geq -18[/tex]

[tex]x\leq 18[/tex]

Therefore, all the numbers are less than and equal to 18.

The set of numbers such that a third of a number increased by half that number is at least 3 less than that same number are given as; x <= 18.

According to the question;

Let the numbers in question be represented as x.

In essence;

[tex] \frac{x}{3} + \frac{x}{2 } \geqslant x - 3[/tex]

[tex] \frac{5x}{6} \geqslant x - 3[/tex]

5x >= 6x - 18

-x >= -18

x <= 18

Therefore, the set of numbers such that a third of a number increased by half that number is at least 3 less than that same number are given as; x <= 18.

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w is partly constant and partly varies inversely as the square of t. when w=24, t=4 and when w=18, t=2.
i. determine the law connecting w and t
ii. find t when w = 46

Answers

Steph d question is wrong

To find the law connecting w and t, we establish w as partly constant and partly inverse to t squared. Using given values, we find constants k and c and then solve for t when w is 46.

The problem states that w is partly constant and partly varies inversely as the square of t. Given two sets of values for w and t, we can establish the relationship between them. Since the variation is inverse with respect to the square of t, we can write the relationship as:

w = k / t2 + c

where k is a constant of variation and c is the constant part of w. To find these constants, we use the given data points (24, 4) and (18, 2). Substituting these into the equation, we get two simultaneous equations:

24 = k / 42 + c18 = k / 22 + c

Solving these will give us the values of k and c, which then allows us to find t when w = 46.

To solve for t when w = 46, we plug this value into our established equation and solve for t. We'll end up with a quadratic equation in terms of t that we need to solve to find the time t.

Sarah's grade point average is 2.4. based on the frequency distribution of grouped scores in the table below, what is the percentile rank of sarah's grade point average?

Answers

your answer is 240% hope I helped and god bless. :)

rewrite the equation in the form y= k/x

xy= -45

x= 15/y

2xy=9

what are the answers and how do i solve them?

Answers

1.
xy=-45 (divide both sides by x)
xy÷x = 45÷x
y= 45÷x
y= 45/x

2.
x=15/y ( cross multiply)
xy= 15 ( divide both sides by x)
y= 15/x

3.
2xy= 9 (divide both sides by 2x)
y= 9/2x
y= 4.5/x

Ennifer owes $185 to a credit card company. She makes a $12 purchase with the card and then pays $70 on the account. what us her current balance

Answers

185 + 12 - 70

185 - 58 = $127

What is the greatest perfect square that is a factor of 980?

Answers

Answer:

The greatest perfect square that is a factor of 980 is 196.

Step-by-step explanation:

To find : What is the greatest perfect square that is a factor of 980?

Solution :

First we factor the number 980.

[tex]980=2\times 2 \times 5\times 7\times 7[/tex]

[tex]980=2^2\times 7^2\times 5[/tex]

[tex]980=(2\times 7)^2\times 5[/tex]

[tex]980=(14)^2\times 5[/tex]

[tex]980=196\times 5[/tex]

This clearly means that 196 is the required factor.

Therefore, The greatest perfect square that is a factor of 980 is 196.

We have that The Greatest perfect square of 980 is

x= 196

From the question we are told that

The greatest perfect square that is a factor of 980

Generally

Greatest perfect square

Where a  perfect square is a number that is written to given the product of two identical Numbers

Therefore

Greatest perfect square of 980 is

x= 196

Where

The factors of 980 are 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980

Therefore

The Greatest perfect square of 980 is

x= 196

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Describe which of the two points lies on the graph of the line
2x+2y=6
A,-4,5
B,6-3

Answers

B. 6, -3

2(6) + 2(-3) = 6

12 - 6 = 6

True

hope this helps

How can x-2/3=5/6 be solved for x in one step?

Answers

x - 2/3 = 5/6

 the only step needed is to add 2/3 to 5/6

2/3 + 5/6 = 1 1/2

x = 1 1/2

Answer:

the value of x is [tex]\frac{3}{2}[/tex]

Step-by-step explanation:

we need to solve value of x for expression [tex]x-\frac{2}{3}=\frac{5}{6}[/tex]

[tex]x-\frac{2}{3}=\frac{5}{6}[/tex]

Add both the sides by [tex]\frac{2}{3}[/tex]

[tex]x-\frac{2}{3}+\frac{2}{3}=\frac{5}{6}+\frac{2}{3}[/tex]

take L.C.M both the side and simplify

[tex]x=\frac{3}{2}[/tex]

Hence, the value of x is [tex]\frac{3}{2}[/tex]

Is 120% equal to less than or greater than 1

Answers

Greater than. 100% would be 1, and since 120% is greater than 100%, it must be greater than 1.

What is the distance between points (-23. 17) and (-3, -4)

Answers

Here is the work to go with the answer it is hard to completely type out hope it helped!

the perimeter of a rectangle that is x units wide and y units long is 24 centimeters.
A.) Write an equation in standard form for the perimeter
B.) Find the x and y units. Does either intercept make sense as a solution for this situation? Explain.

Answers

Part A

The perimeter of a rectangle is given by

Perimeter = 2(length + width)

i.e. 2(x + y) = 24
x + y = 24 / 2 = 12

Therefore, the equation in standard form for the perimeter is given by
x + y = 12



Part B

x-intercept is x = 12
y-intercept is y = 12

The intercepts does not make sence as a solution for this equation because either side of a rectangle cannot be 0.

What is 0.02% written as a decimal

Answers

[tex]0.02\%=0.0002[/tex]

The value 0.02% written as a decimal is 0.0002

Given the value to be written as a decimal :

0.02%

To express as a decimal , divide 0.02 by 100

Now we have ;

0.02/100 = 0.0002

Therefore, the value 0.02% written as a decimal is 0.0002

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y/6-3=-11
What does y equal?

Answers

-48 is the answer i got
If it's (y / 6) - 3 = -11:
                  + 3   + 3
                y / 6 = -8
                   * 6   * 6
                      y = -48

If it's y / (6 - 3) = -11:
                y / 3 = -11
                   * 3   * 3
                     y = -33

If there aren't any parenthesis, you use PEMDAS, which means -48 would be the answer because you'd do the division before the subtraction

Evaluate 390mm to 13cm as a ratio in its lowest terms

Answers

To evaluate the ratio of 390mm to 13cm, we convert 13cm to 130mm and then simplify the ratio of 390mm to 130mm to its lowest terms, which is 3 : 1.

To evaluate the ratio of 390mm to 13cm, we first need to express these measurements in the same unit. Converting centimeters to millimeters is simple: there are 10 millimeters in 1 centimeter.

Therefore, 13cm is equivalent to 130mm. Now, we can write the ratio as 390mm : 130mm. To simplify this ratio to its lowest terms, we divide both numbers by the greatest common divisor, which is 130 in this case. The simplified ratio is therefore 3 : 1.

The generalized description is as follows: quantity (in old units)  imes conversion factor = quantity (in new units). One must remember to simplify the ratio by dividing both the numerator and the denominator by their greatest common divisor, finalizing the answer without the '1' in the denominator when it's the only figure present.

Which relationship between sample size and sampling error is correct?

Answers

The relationship between sample size and sampling error is that the smaller the sample size, the bigger the sample error percentage.

find the inverse of the function and then determine whether the inverse is a function.
y=x^2+4

Answers

Hello there!

In order to find the inverse, we need to interchange the variables and solve for y.

[tex]f ^{-1} (x) = \sqrt{-4+x} , - \sqrt{-4+x} [/tex]

Edited: Yes the inverse is a function.
What is a function?
A function is a special relationship where each input has a single output.

It is often written as "f(x)" where x is the input value.
Best of luck!


In what way is a debit card similar to a check? a You must always provide a signature to use either.
b Both always take a few days to clear, so there is some float time until the payment goes through.
c Both pull money directly from a checking or savings account.
d Both charge interest on the purchases you make with them.

Answers

The correct answer would be C) or the third option.
C) both pull money directly from a checking or savings account

hope this helps

The time t (in minutes) for a small plane to climb to an altitude of h feet is given by t = 50 log10 (18000/(18000-h)) where 18000 feet is the plane's absolute ceiling. a. Determine the domain of the function appropriate for the context of the problem. b. Graph the function and identify any asymptotes. c. As the plane approaches its absolute ceiling, what can be said about the time required to further increase its altitude. d. Find the amount of time it will take for the plane to climb to an altitude of 4000 feet.

Answers

Final answer:

The domain of the function is restricted to the altitude of the plane, and the plane cannot exceed its absolute ceiling. The graph of the function will have a vertical asymptote at the absolute ceiling. As the plane approaches its absolute ceiling, the time required to further increase its altitude increases significantly. To find the time it will take for the plane to climb to a specific altitude, substitute the altitude into the equation and solve for time.

Explanation:

a. The domain of the function is determined by the restrictions given in the problem. In this case, the domain represents the altitude of the plane. Since the plane's absolute ceiling is 18,000 feet, the altitude cannot exceed 18,000 feet. Therefore, the domain is 0 ≤ h ≤ 18,000.

b. To graph the function, we can plot points by substituting different values of h into the function and calculating the corresponding values of t. This will result in a smooth curve. Asymptotes occur when the function approaches certain values of h or t. In this case, the function has a vertical asymptote at h = 18,000, because the plane cannot climb beyond its absolute ceiling.

c. As the plane approaches its absolute ceiling of 18,000 feet, the time required to further increase its altitude increases significantly. This is because the logarithmic function in the equation has a slower growth rate as h approaches its limit.

d. To find the time it will take for the plane to climb to an altitude of 4000 feet, we can substitute h = 4000 into the equation t = 50 log10 (18000/(18000-h)) and solve for t.

HELP!!!! Which system of Linear inequalities is graphed?


x < -3 and y < -x -2
x < -2 and y ≤ -x +2
x < -2 and y ≤ -x -2
x ≤ -2 and y ≤ x -3

Answers

it is the tyhird one 

x < -2 and y ≤ -x -2

Determine whether the value is a discrete random​ variable, continuous random​ variable, or not a random variable.
a. the number of hits to a website in a daynumber of hits to a website in a day
b. the weight of a upper t dash bone steakweight of a t-bone steak
c. the political party affiliation of adults in the united statespolitical party affiliation of adults in the united states
d. the number of bald eagles in a countrynumber of bald eagles in a country
e. the amount of snowfall in december in city upper aamount of snowfall in december in city a f. the number of textbook authors now sitting at a computer

Answers

a. discrete random​ variable
b. continuous random​ variable
c. discrete random​ variable
d. not a random variable
e. not a random variable
f. discrete random​ variable

In a crowd, the ratio of men to women is 5 to 6. If there are 90 men, how many women are there?

Answers

for every 5 men there are 6 women

90 /5 = 18

18 *6 = 108 women

Answer:

108 women

Step-by-step explanation:

the diagonals of a parallelogram are congruent and are perpendicular bisectors of each other. the parallelogram is which type of quadrilaterals?
A. square
B. rectangle
C. trapezoid
D. kite

Answers

Hello,

The parallelogram is a rectangle and a diamond so a square.

Answer A
The correct answer is a
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