To earn a fitness reward, your average heart rate while walking must be between 80 and 89 beats per minute, inclusive. Suppose you recorded 85, 81, and 87 beats per minute on your first three recordings. What are the possible heart rates you can have on the fourth and final recording in order to earn a fitness reward?
Answers
Answer:
Between 67 and 103 beats per minute
Step-by-step explanation:
The minimum would be 80. That means that the minimum sum would have to be 320 among the four numbers.
85+81+87=253
320-253=67 so 67 will be the minimum
now, we should see the maximum. It will be 89 so the sum of the four numbers cannot be anymore than 89*4 which is 356
So, 356-253=103
yay savvas, my favorite
A. between 67 and 103 beats per minute inclusive
Step-by-step explanation:
What I did was I just started from the top and tried out the mean with 69 and saw that that was 80, so that was right. Then I tried 103, and that was 89, so that's obviously the max. So it was pretty simple. I do not know the way you are supposed to do it. That's what I came on here for, but none of the answers anyone but was right..
Related Questions
An experiment was performed to determine whether the annealing temperature of ductile iron affects its tensile strength. Five specimens were annealed at each of four temperatures. The tensile strength (in ksi) was measured for each. The results are presented in the following table.
Machine
Temperature(°C) Sample Values
750 17.89 16.01 16.66 16.93
800 19.72 20.04 14.49 18.10
850 17.38 14.49 20.88 15.53
90016.15 19.63 20.28 18.21 13.25
18.68 20.53 15.58
Perform the analysis of variance(ANOVA) at the 0.05 level of significance and indicate whether or not there are differences among the mean strengths?
Answers
Answer:
There are significant differences among the mean tensile strengths for different temperatures.
Step-by-step explanation:
A one-way ANOVA is used to test whether there is significant difference between the means for more than two groups.
The hypothesis can be defined as follows:
H₀: There is no difference between the means, i.e. [tex]\mu_{1}=\mu_{2}=\mu_{3}=\mu_{4}[/tex].
Hₐ: There is a significant difference between the means, i.e.at least one of the mean is different.
Use MS-Excel to perform the analysis of variance.
Go to Data → Data Analysis → Anova: Single Factor.
A dialog box will open.
Enter the data and enter Alpha as 0.05.
Press OK.
The output is attached below.
The F-value is, 8.40458.
The p-value of the test is, 0.00139.
Decision Rule:
If the p-value of the test is less than the significance level then the null hypothesis will be rejected.
p-value = 0.00139 < α = 0.05
The null hypothesis will be rejected at 5% level of significance.
Concluding that there are differences among the mean tensile strengths for different temperatures.
Show that an implicit solution of 2x sin2(y) dx - (x2 + 11) cos(y) dy = 0 is given by ln(x2 + 11) + csc(y) = C.
Differentiating ln(x2 + 11) + csc(y) = C we get 2x/ x2 + 11 (__) dy/dy=0 or
2x sin2(y) dx + (______)dy = 0.
Find the constant solutions, if any, that were lost in the solution of the differential equation. (Let k represent an arbitrary integer.)
y =_______
Answers
Answer:
From the question we are told that
The equation is [tex]2x sin^2(y) dx - (x^2 + 11) cos(y) dy = 0[/tex]
Generally the goal of this solution is to prove that the implicit solution of the differential equation above is [tex]ln(x^2 + 11) + csc(y) = C.[/tex]
First Step
Differentiate the solution with respect to x
[tex]0 = \frac{2x}{ x^2 + 11} + [-cot * csc(y) ]\frac{dy}{dx}[/tex]
=> [tex]0 = \frac{2x}{ x^2 + 11} + [-\frac{cos(y)}{ sin(y) }* \frac{1}{sin(y)} ]\frac{dy}{dx}[/tex]
=> [tex]0 = \frac{2x}{ x^2 + 11} + [-\frac{cos(y)}{ sin^2(y) }]\frac{dy}{dx}[/tex]
=>
multiply through by [tex]sin^2(y)[/tex] , [tex] x^2 + 11[/tex], [tex]dx[/tex]
So
=> [tex]2 x (sin^2(y) dx + [-cos(y) (x^2 + 11)]dy = 0[/tex]
Looking at the equation obtained we see that it is equivalent to the differential equation hence the implicit solution of [tex]2x sin^2(y) dx - (x^2 + 11) cos(y) dy = 0[/tex] is [tex]ln(x^2 + 11) + csc(y) = C.[/tex]
Step-by-step explanation:
8.08, 8.081, 8.09, 8.008 greatest to least
Answers
help me please i dont understand it
Answers
Answer:
6 u^4 v^2 (5 y^9 + 4 u^4 v^6)
Step-by-step explanation:
factoring basically means to take out the things that they have in common and put it outside of the parenthesis
when my says something like u^4 it means 4 is an exponent of u
True or false. Rotation reflection and Dilation produce congruentfigure
Answers
Answer:
true
Step-by-step explanation:
The table below shows the points on a function.
A 2-column table with 6 rows. Column 1 is labeled x with entries 0, 2, negative 2, 4, negative 1, 3. Column 2 is labeled f (x) with entries 1, negative 3, 13, 1, 6, negative 2.
Identify points on f –1(x).
Check all that apply.
(–3, 2)
(6, –1)
(–1, –4)
(3, 2)
(1, 0)
(–4, –1)
Answers
Answer:
the answer is c,Yes, because the ratios for each input and output are equivalent.
Step-by-step explanation:
The coordinate which satisfies the inverse of function f(x) is that f⁻(x) are (–3, 2),(6, –1), and (1, 0) so options (A),(B), and (E) will be correct.
What is the inverse of a function?The inverse of a function is basically a reverse function or undo of the function.
For example y = f(x) then inverse will be x = f(y).
It means in the inverse function we need to interchange x and y.
Given points have been labeled in 2 a 2-column table with 6 rows.
The coordinate of any function is given as (x,y) or ( x,f(x) ).
First coordinate of functin f(x) is (0,1) second(2,-3) and so on.
If we do the inverse of the function f(x) is that f⁻(x) then coordinate will interchange is that x will interchange with f(x) then first coordinate (1,0) second (-3,2) and so on.
So if we look at all coordinates which is available among the options are (–3, 2),(6, –1), and (1, 0).
Hence "The coordinate which satisfies the inverse of function f(x) is that f⁻(x) are (–3, 2),(6, –1), and (1, 0)".
For more information about the inverse of a function,
brainly.com/question/2541698
#SPJ2
the sum of a number and 9 is 17. find the number
Answers
Answer:
8
Step-by-step explanation:
Reverse the problem to 17 - 9 = x
x = 8
thus, our answer is 8
Answer:
9 + 8 = 17
I don't think I have to explain this.
Someone anyone please
Answers
Answer:
9 or 3^2
Step-by-step explanation:
3^3×3^3=729
3^4=81
729/81 = 9 = 3^2
Using the Ohms Law triangle (pictured above) What is the amperage of a circuit that has 1.5 ohms of resistance and is powered by a 9 volt battery?
Answers
Answer: A) 6 A
Step-by-step explanation:
I = V/R
I = 9 / 1.5
I = 6 A
Jacob went to the gas station with 17.70 he brought a drink for 2.90 and he wanted to spend the rest of the money and a bag of chips for his friend which cost$ 1.85 each what is the maximum number of bags of chips that he can buy Define a variable then write and solve an inequality write your answer using a complete sentence
Answers
Answer:
17.70-2.90=14.80
14.80/1.85=8
He could buy a maximum of 8 chip bags.
bags of chips = x
17.70-2.90/1.85≥x
The name Jim Crow came to be a label for
Answers
The name Jim Crow is often used to describe the segregation laws, rules, and customs which arose after Reconstruction ended in 1877 and continued until the mid-1960s. How did the name become associated with these "Black Codes" which took away many of the rights which had been granted to blacks through the 13th, 14th, and 15th
Answer:
D) Inequality
Step-by-step explanation:
Got it right on edge
Kate has 36 candy bars to sell for a fundraiser. She sells 9 to her neighbors. Which equation shows how many candy bars she has left to sell?
A) 9 + 4 = 13
B) 36 − 9 = 27
C) 9 × 4 = 36
D) 36 ÷ 9 = 4
Answers
Answer:
B
Step-by-step explanation:
She has 36 sold 9 so 36-9=27
Pepper jackie purchased 3.5 pounds of jelly beans for $1.19 per pound. How much did she spend on jelly beans, to the nearest cent?
Answers
Answer: 4.17
$1.19 *3.5 = 4.165
Step-by-step explanation:
first multiply the two numbers. then round to the nearest cent. since there is a 5 behind the 6 you round up 7. it there would of been a 4 or less behind the 6 you would round down to 6.
Answer: 4.17
Maya is comparing ride-sharing company prices. Company M charges $1.75 per mile driven and a one-time trip fee of $5. Company N charges $2.50 per mile driven and a one-time trip fee of $3. Which inequality can be used to find x, the minimum number of miles driven so that the total cost at Company M is less than the total cost at Company N?
Answers
Answer:
1.75x+5<2.5x+3
Step-by-step explanation:
Answer all 3 please will mark as brainiest
Answers
Answer:
1a. -4 3/5
1b. -4 3/5
2. 33
Step-by-step explanation:
1a. -4 4/5 + 1/5 = -4 3/5
1b. -4 2/5 + (-1/5) = -4 3/5
2. (-16 -35) + 18 = -33
You would need to draw the number 33 to get a score of 0.
here are ten numbers:
Answers
Answer:
Mode = 7
Median = 6
Mean = 5.2
Range = 7
Step-by-step explanation:
[tex]3 \: ,7 \:,2 \:,4 \:,7 \:,5, \:7\:,1,8 \:,8[/tex]
a) Write down the mode
Mode is the number that appears the most in a given set of data
[tex]Mode = \:7[/tex]
7 appears thrice , 8 appears twice and rest appear once.
b) Median
Median is the middle number of a given set of data when arranged in order of least to largest.
[tex]1,2 , 3 ,4,5, 7,7,7,8,8\\\\=1),2),3),4)5,7,(7,(7,(8,(8\\\\= \frac{5+7}{2}\\ \\= \frac{12}{2}\\ \\= 6[/tex]
c. Mean
Mean is the sum of all values divided by the number of given values
[tex]\frac{1+2+3+4+5+7+7+7+8+8}{10} \\\\= \frac{52}{10} \\\\= 5.2[/tex]
d)Range
Range is the difference between the highest value and the lowest vale in a given set of data.
[tex]Highest \:value =8\\Lowest\:value = 1\\\\Range = 8-1\\\\=7[/tex]
A quadratic function is shown in the graph below.
10
9F
7
6
4
3
25
1 2 3
8 9 10
N
What are the domain and range of the quadratic function?
Domain: All real numbers less than or equal to 9
Range: All real numbers greater than 1
Domain: All real numbers greater than 1
Range: All real numbers less than or equal to 9
Domain: All real numbers greater than 1 and less than or equal to 6
Range: All real numbers greater than or equal to 0 and less than or equal to 9
Domain: All real numbers greater than or equal to 1
Range: All real numbers less than 9
Answers
Answer:
b
Step-by-step explanation:algebra test
-5x - 35= -15
-5x = 25
X =
Answers
Mrs. Carroll’s garden has a total of 448 flowers arranged with 28 flowers in each row. How many rows are there in Mrs. Carroll’s garden?
19
12
16
10 ASAP PLEASE BRO PLEASE HELP!!!!!!!!!!!1
Answers
Answer:
16 rows
Step-by-step explanation:
448 rows
28 flowers in each
448/28=16
Answer:
16 rows
Step-by-step explanation:
448 :28 =16 rows
Kimberly grouped these two cards together. What title do you think she might give this group?
Answers
Answer:
t
Step-by-step explanation:
use the distributive property to simplify the expression (5n+3)12
Answers
Answer:
60n+36
Step-by-step explanation:
12*5n+12*3=60n+36
Hey there!
(5n+3)12 is the same as
12(5n+3)
because we multiply 12 times 5n and 3:
60n+36
And we can't simplify this any further, because 60n and 36 aren't like terms.
Hope everything is clear.
Let me know if you have any questions!
#KeepLearning
Answer Given By:
An ~Emotional helper ~
A consulting firm submitted a bid for a large research project. The firm's management initially felt they had a 50-50 chance of getting the project. However, the agency to which the bid was submitted subsequently requested additional information on the bid. Past experience indicates that for 80% of the successful bids and 35% of the unsuccessful bids the agency requested additional information. a. What is the prior probability of the bid being successful (that is, prior to the request for additional information)
Answers
Answer:
[tex]Probability = 0.50[/tex]
Step-by-step explanation:
Given
[tex]Probability = 50\ 50\ chance[/tex]
[tex]Successful\ Bids = 80\%[/tex]
[tex]Unsuccessful\ Bids = 35\%[/tex]
Required
Determine the probability before the request of past experience
In this case, we only consider the 50 50 chance probability
[tex]Probability = \frac{50}{50 + 50}[/tex]
[tex]Probability = \frac{50}{100}[/tex]
[tex]Probability = 0.50[/tex]
SOMEONE PLEASE HELP ME WITH THIS QUESTION !!!
Slope can be thought of as the average rate of change in one quantity per unit change in another.
Use the concept of slope to answer the following question: The price of computers has been dropping
for the past ten years. If a desktop PC cost $6000 ten years ago and the same computing power
cost $300 two years ago find the rate of decrease per year. Assume that a linear model applies and
round your answer to the nearest cent.
Answers
Answer:
$700
Step-by-step explanation:
Given that:
Cost of desktop PC 10 years ago = $6000
Cost of desktop PC 2 years ago = $300
Linear model applies.
To find the rate of decrease per year, we need to find the slope.
One quantity is cost of PC here and second quantity here is number of years.
[tex]\text{Rate of decrease per year = }\dfrac{\text{Change in Price}}{\text{Change in Number of years}}[/tex]
[tex]\Rightarrow \dfrac{6000-300}{10-2}\\\Rightarrow \dfrac{5700}{8}\approx \bold{\$700}[/tex]
So, the answer is:
There is a decrease of $700 per year.
OR
Rate of decrease per year is $700.
Answer:
700$
Step-by-step explanation:
ur welcome stay safe
which of the following describes the solution?
a) no solution
b) an infinite number of solutions
c) (-3,2,-1)
d) (1,1,1)
Answers
I think its b
that's the answer for me cause I got that question before and I remember saying B and the teacher said it was right
If the points (-8, 7) and T (6,-3) are on a line segment, find the length of ST.
Answers
Answer:
The answer is
2√74 or 17.20 unitsStep-by-step explanation:
The length of w line segment between two points can be found by using the formula
[tex]d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\ [/tex]
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
S(-8, 7) and T (6,-3)
The length of ST is
[tex] |ST| = \sqrt{ ({ - 8 - 6})^{2} + ({7 + 3})^{2} } \\ = \sqrt{ ({ - 14})^{2} + {10}^{2} } \\ = \sqrt{196 + 10} \\ = \sqrt{296} \\ = 2 \sqrt{74} \\ = 17.2046505...[/tex]
We have the final answer as
2√74 or 17.20 unitsHope this helps you
Evaluate, please Iʻm not sure how to do this
Answers
Answer
-4/3
Step-by-step explanation:
A person who weighs 100 kg on earth would weigh 16 1/2 on the moon. Determine how much a child who weighs 1- 2/3 kg on earth would weigh on the moon
Answers
the baby would be weigh 0.17 kilograms
Evaluate the expression 517-4)2 + 3 + 11.
Need ASAP
Answers
Answer:
1040
Step-by-step explanation:
In the diagram below, points A and B are 3 inches apart. Try to find two points that are 1 inch from point A
and 1.5 inches from point B. Why do you think it is impossible to find such points?
A______________________B
3"
Answers
Answer:
It is impossible to find two points that are both 1 inch and 1.5 inches from the point A simultaneously as shown in the following proof
From segment addition postulate given a point C that is between the points of a segment AB, we have;
AC + CB = AB
Therefore, where AC = 1 inch and CB = 1.5 inches, we have;
AC + CB = 1 inch + 1.5 inches = 2.5 inches ≠ AB = 3 inches
However it is possible to find two points in which one of the points is 1 inch from the point A while the other point is 1.5 inches from the point B
Step-by-step explanation:
Solve for m 3+5m= 8m-9
Answers
Answer:
m = 4
Step-by-step explanation:
solve for m 3+5m = 8m-9
3+5m = 8m-9
-5m -5m
3 = 3m-9
+9 +9
12 = 3m
/3 /3
4 = m
m = 4
