To earn a fitness award, 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 award?

Answers

Answer 1

Based on the first three (3) recordings, your average heart rate in beats per minute is approximately 84 bpm (mean). Calculating for the standard deviation of the samples, we get about 2.5 bpm. To give the possible heart rates on the fourth, we may solve for the range:

Upper Range = Mean + Standard Deviation = 84 + 2.5 = 86.5 bpm or 87 bpm
Lower Range = Mean - Standard Deviation = 84 - 2.5 = 81.5 bpm or 82 bpm

Therefore the fourth and final recording will likely to fall in the range of 82 - 87 beats per minute. You will win the fitness award!

ANSWER: 82-87 beats per minute

Answer 2

Answer:

between 67 and 103 beats per minute inclusive

Related Questions

Trisha needs 4 yards of fabric to do a project. If she already has of a yard of fabric, what is the minimum amount of fabric she must buy to be able to complete her project? A. 3 5/6 B.4 1/12 C.4 1/6

Answers

the answer would be A.

Answer:

The answer is A. OR 3 5/6

What is a 401(k) plan? an investment plan offered by an insurance company a retirement plan offered by employers a personal retirement plan

Answers

It is retirement plan in which you donate a certain amount of your paycheck to your retirement and you decide the contribution percentage

a retirement plan offered by employers

Which statements are true about the ordered pair (−4, 0) and the system of equations? {2x+y=−8x−y=−4
Select each correct answer.

The ordered pair (−4, 0) is a solution to the first equation because it makes the first equation true.

The ordered pair (−4, 0) is a solution to the second equation because it makes the second equation true.

The ordered pair (−4, 0) is not a solution to the system because it makes at least one of the equations false.

The ordered pair (−4, 0) is a solution to the system because it makes both equations true.

Answers

Selections (a, b, d) are the most correct answers. To begin, 2x is equal to -8 when x is (-4). Adding 0 to this (for y) gives -8, which is the answer for the first equation. Doing the same for the second equation gives (-4 - 0) = -4, which shows that the second equation is also correct. Since both equations are satisfied by this ordered pair, it shows that the pair (-4,0) is a solution to the entire system.

A pool is being drained at a rate of 120 gallons per minute.What is this rate in quarts per hour?

Answers

There are 4 quarts in 1 gallon, so a rate of 120 gallons per minute converts to 4 x 120 = 480 quarts per minute. To find the per hour rate, we simply multiply our per minute rate by 60, obtaining 480 x 60 = 28800 quarts per hour.

What is the measure of MOP?

Answers

Answer:

Step-by-step explanation:

Given: It is given that angle MON is a straight angle and OP is bisects angle MOQ.

To find: The measure of the angle MOP.

Solution: It is given that angle MON is a straight angle and OP is bisects angle MOQ.

Thus, using the straight line property, we get

[tex]{\angle}MOP+{\angle}POQ+{\angle}QON=180^{\circ}[/tex]

[tex]2{\angle}MOP+{\angle}QON=180^{\circ}[/tex]

Substituting the given values, we get

[tex]2{\angle}MOP+58^{\circ}=180^{\circ}[/tex]

[tex]2{\angle}MOP=122^{\circ}[/tex]

[tex]{\angle}MOP=61^{\circ}[/tex]

Hence, option (C) is correct.

Answer: C - 61°

Step-by-step explanation: edge

Use your calculator to evaluate the limit of x equals 1 to 3 of e raised to the x squared power, dx. Give your answer to the nearest integer.

Numerical Answers Expected!

Answers

The integral of e raised to x squared dx to the limit from 1 to 3 translating in equation we get
∫1-3 e^(X^2) dx.

Solving using scientific calculator, we have 1443.082471 or simply 1443.

ANSWER: 1443

Child development
What have researchers learned about the relationship between longer childhoods and brain development?

Answers

Researchers have learned that the longer the childhood, the more learning the child can do. Like Gopnik says that we humans aren’t good at anything in particular, but good at learning about many different environments and are learning to do more than one thing unlike chickens."

Final answer:

Longer childhoods are closely linked to brain development, enhancing cognitive abilities by allowing more complex neuronal connections and greater adaptation to environmental stimuli. Extended brain development is also associated with increased brain plasticity, leading to better adaptability and higher complex problem-solving skills.

Explanation:

Research has found a significant relationship between longer childhoods and brain development. Humans have one of the longest childhoods among species, a period during which our brains continue to develop and mature significantly. This extended period of growth allows for more complex neuronal connections and adaptation to environmental stimuli, thus enhancing cognitive abilities.

A long childhood provides ample opportunities for learning and skill acquisition, and it is during this period that the brain is especially receptive to picking up new information. More prolonged brain development during childhood also tends to be associated with increased brain plasticity, meaning the brain's ability to change and adapt as a result of experiences. This plasticity aids in the formation of our identities and equips us to handle complex tasks and challenges as we grow.

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Express terms in i square root -40

Answers

[tex]\bf \sqrt{-40}\implies \sqrt{-1\cdot 40}\implies \sqrt{-1}\cdot \sqrt{40}\implies i\cdot \sqrt{4\cdot 10} \\\\\\ i\cdot \sqrt{2^2\cdot 10} \implies 2i\sqrt{10}[/tex]

One third of the sum of two consecutive odd integers is five less than the smaller integer

Answers

1/3(x + (x+2)) = x - 5

Your answer is 17, 19

What is the greatest common factor of 125, 50, and 275?

Answers

The greatest common factor of those numbers is 25.

Answer:

25 is the greatest common factor.

Step-by-step explanation:

We are given the following information in the question:

We have t find the greatest common factor of 125, 50 and 275.

We can use the method of prime factorization.

[tex]125 = 5\times 5\times 5\\50 = 5\times 5\times 2\\275 = 5\times 5\times 11[/tex]

Hence, the common factor of the the three numbers are:

[tex]5\times 5 = 25[/tex]

Hence, the greatest common factor 125, 50, 275 is 25.

Which ordered pairs are solutions to the inequality y−4x≥−5 ?

Select each correct answer.

(5, −2)

(1, −1)

(−4, 2)

(4, 0)

(−2, 1)

Answers

(1,-1) (-4,2) (-2,1) are all correct answers because when you plug them in to the eqaution they keep the eqaution correct

The ordered pairs that satisfy the given inequality is required.

The points that are solutions are [tex](-4,2),(-2,1),(1,-1)[/tex]

The given inequality is [tex]y-4x\geq -5[/tex]

Let us substitute each point in the inequality

[tex](5,-2)[/tex]

[tex]y-4x\\ =-2-4\times 5\\ =-22\ngeq -5[/tex]

[tex](1,-1)[/tex]

[tex]-1-4\times 1\\ =-5\geq -5[/tex]

[tex](-4,2)[/tex]

[tex]2-4\times -4\\ =18\geq -5[/tex]

[tex](4,0)[/tex]

[tex]0-4\times 4=-16\ngeq -5[/tex]

[tex](-2,1)[/tex]

[tex]1-4\times -2=7\geq -5[/tex]

The points that are solutions are [tex](-4,2),(-2,1),(1,-1)[/tex]

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Select "Growth" or "Decay" to classify each function.

Function Growth Decay
y=200(0.5)^2t
y=1/2(2.5)^t/6
y=(0.65)^t/4

Which equation can be used to find the solution of (1/3)^d−5 = 81 ?

A. −d−5=4

B. d + 5 = 4

C. d−5=4

D. −d+5=4

Answers

1. The growth rate equation has a general form of:

y = A (r)^t

The function is growth when r≥1, and it is a decay when r<1. Therefore:

y=200(0.5)^2t --> Decay

y=1/2(2.5)^t/6 --> Growth

y=(0.65)^t/4 --> Decay

2. We rewrite the given equation (1/3)^d−5 = 81

Take the log of both sides:

(d – 5) log(1/3) = log 81

d – 5 = log 81 / log(1/3)

d – 5 = - 4

Multiply both sides by negative 1:

- d + 5 = 4

So the answer is D

Point F is on circle C.

What is the length of line segment GF?

a.12.5 units
b.15.0 units
c.17.5 units
d.20.0 units

Answers

The answer was D. "20.0 units"

Answer:

GF = 20 units .

Step-by-step explanation:

Given : A circle ,Point F is on circle C.

To find : What is the length of line segment GF.

Solution : We have given A circle ,Point F is on circle C.

In circle we can see in triangle GCE

EC = CF = 7.5

GE = 10.

By the Pythagorean theorem :

GC² = EG²+ EC².

Plugging the values

GC² = 10²+ 7.5².

GC² = 100 + 56 .25.

GC² = 156.25.

Taking square root.

GC = 12.5 units.

Radius of circle CF = 7.5 units .

GF = GC +CF.

GF = 12.5 + 7.5

GF = 20 units .

Therefore, GF = 20 units .

Which is cheaper for a $56 item that cost $9.25 to ship, a $15 off coupon off the cost or free shipping

Answers

the answer would have to the 15 dollars off the price

The $15 dollar coupon. You'll save about $6

HELP WITH SOLVING SYSTEMS WITH THREE VARIABLES, WILL MEDAL

-x -y -z = -8
-4x + 4y + 5z = 7
2x + 2z = 4

I'm not sure how to work this out.

Answers

Equation 1) -x - y - z = -8
Equation 2) -4x + 4y + 5z = 7
Equation 3) 2x + 2z = 4

Solving for three variables is quite similar to solving for two variables. Just like when solving for two variables, you look for like variables & solve them one-by-one. So, let's get started! :)

Multiply ALL of equation 1 by four.

1) 4(-x - y - z = -8)

Simplify.

1) -4x - 4y - 4z = -32

Both equations 1 & 2 have the same three variables (x, y, z), so, we must look at these equations together.

1) -4x - 4y - 4z = -32
2) -4x + 4y + 5z = 7

Add these equations together, and create a fourth equation.

4) -8x - z = -25

Now, notice how both equations 3 & 4 have the same two variables (x, z).

So, we must look at these equations together.

3) 2x + 2z = 4
4) -8x - z = -25

Multiply ALL of equation 4 by 2.

4) 2(-8x - z = -25)

Simplify.

4) -16x - 2z =-50
3) 2x + 2z = 4

Now, add the equations together, so that we can solve for x.

-14x = -42

Divide both sides by -14.

x = 3

Now, plug in 3 for x into our 3rd equation.

3) 2x + 2z = 4

3) 2(3) + 2z = 4

Simplify.

6 + 2z = 4

Subtract 6 from both sides.

2z = 4 - 6

Simplify.

2z = -2

Divide both sides by 2.

z = -1

Now, plug in -1 for z & 3 for x in our 1st equation.

1) -x - y - z = -8

-(3) - y - (-1) = -8

Simplify.

-3 - y + 1 = -8

Simplify.

-2 - y = -8

Add 2 to both sides.

-y = -8 + 2

Simplify.

-y = -6

Divide both sides by -1.

y = 6

SO :

x = 3, y = 6, z = -1

~Hope I helped!~

Hadlee got 18 out of 20 questions correct on her math quiz. What percent of the questions did she get right?

Answers

It would be a 90%. In the calculator 18 is what percent of 20.

To find percents.

First divide -----> 18/20 = 0.9

Then multiply by 100 or move decimal 2 places to the right.

----> 0.9 * 100 = 90

Answer: 90%

Directions: Use a proportion to solve the problem.

Emily weighs six times as much on Earth as she does on the Moon. If her weight is ninety pounds on earth, what would her weight be on the moon?

Answers

so, since she weights 6 times more on earth, say for every lb on the moon is 6lbs on earth then.

now, if 1lb on the moon is 6lbs on earth, how much is 90 earth lbs on the moon?

[tex]\bf \begin{array}{ccll} moon&earth\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 1&6\\ m&90 \end{array}\implies \cfrac{1}{m}=\cfrac{6}{90}\implies \cfrac{1\cdot 90}{6}=m[/tex]

HELP! A daycare purchases two type of snacks, granola bars and fruit rolls. One week, they purchase 10 packs of granola bars and 6 packs of fruit rolls for a total of 152 snacks. The next week, they purchase 7 packs of granola bars and 12 packs of fruit rolls for a total of 200 snacks. How many snacks are in one pack of granola bars and one pack of fruit rolls?

Answers

10x+6y=152
5x+3y=76
7x+12y=200
-20x-12y=-304
-13x=-104
x=8
40+3y=76
3y=36
y=12
There are 8 granola bars in a pack and 12 fruit rolls in a pack

Answer: The number of granola bars in one pack = 8

The number of fruit rolls in one pack = 12

Step-by-step explanation:

Let x be the number of granola bars in each pack and y be the number of fruit rolls in each pack .

Then according to the question we have the following system of equations :

[tex]10x+6y=152.....................(1)\\7x+12y=200.......................(2)[/tex]

Multiply equation (1) by 2 we get

[tex]20x+12y=304......................(3)[/tex]

Subtract equation (2) from equation (3), we get

[tex]13x=104\\\\\Rigtarrow x=8[/tex]

Substitute x=8 in (1), we get

[tex]10(8)+6y=152\\\\\Rightarrow6y=152-80\\\\\Rightarrow\ 6y=72\\\Rightarrow y=12[/tex]

Hence, the number of granola bars in one pack = 8

The number of fruit rolls in one pack = 12

Which of the following phrases could represent the expression k - 4?
A.a number subtracted from four
B.four less a number
C.a number decreased by four
D.a number less than four

Answers

c a number decreased by 4

Salutations!

There are two phrases that can represent the expression [tex]k - 4[/tex]

→ Four less a number

or

→ A number decreased by four.

Bot option B and C are correct.

Hope I helped (:

Have a great day!

How many centimeters is a piece of paper that measures 12 inches? centimeters?

Answers

Well, there are 2.54 centimeters in an inch, so if you multiply 12 by 2.54, you get 30.48, which would be how many centimeters there are in 12 inches. Hope this helps!

Estimate the unit rate

Answers

What is the given information?
You must have a number of miles traveled in a number of hours, or a number of items bought for so many dollars, etc.

Why is it important to simplify rational expressions before multiplying or dividing? How do you determine that a rational expression is in simplest form?

Answers

Simplifying rational expressions will make the further calculations easier since the variables to work with will usually be smaller.

To determine that a rational expression is in simplest form we need to make sure that the numerator and the denominator have no common variables.

It is important for us to simplify rational expressions before multiplying or dividing because it makes our calculations easier.

The rational expression is in its simplest form when there is no common factor between the numerator and the denominator.

What is a rational number?

A rational number is a number that can be written in the form of p/q where q is not equal to zero.

We have,

Some examples of rational numbers are:

38/44 or 39/63

We can divide this rational number into a decimal number but it is easier for us if we can simplify it in its simplest form.

There is no common factor between numerator and the denominator in its simplest form.

The simplest form of 38/44.

= 38/44

= 2 x 19 / 2 x 22

= 19/22

The simplest form of 39/62 is

= 39/63

= 3 x 13 / 3 x 21

= 13/21

Thus,

It is important for us to simplify rational expressions before multiplying or dividing because it makes our calculations easier.

The rational expression is in its simplest form when there is no common factor between the numerator and the denominator.

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Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify.

6 less than the product of 3 and a number.

Answers

The product of three and a number means 3 times x.

6 less than a number means you subtract 6.

3x - 6

Hope this helps!

The algebraic expression representing the words "6 less than the product of 3 and a number" is shown as 3x - 6.

What is an algebraic expression?

An algebraic expression is a combination of terms separated by mathematical operations (+, -, *, /).

A term is a combination of numerals and variables where variables are raised to integral powers.

How to solve the question?

In the question, we are asked to write the algebraic expression that represents the words "6 less than the product of 3 and a number".

Assuming the number to be x.

We first try to make the terms.

The term that will be formed using the words the product of 3 and a number is 3 * x = 3x.

The term using the word 6 is 6.

Now, to complete the expression, we combine the terms.

The words less than implies the difference. Thus the expression can be written as 3x - 6.

Thus, the algebraic expression representing the words "6 less than the product of 3 and a number" is shown as 3x - 6.

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As Marta built a square fence around her garden, she wondered how much she would have to pay if she increased the length of each side of the fence by the same number of meters. Each meter of fence costs 3 dollars. Which of the following functions best describes the additional amount of money Marta will have to spend, in dollars, if she increases each side of the fence by m meters?

Answers

Given that as Marta built a square fence around her garden, she wondered how much she would have to pay if she increased the length of each side of the fence by the same number of meters.

Suppose the she increases each side of the fence by m meters, then the total increase to the four sides of the square is given by 4m.

Given that each meter of fence costs 3 dollars, therefore, the function that best describes the additional amount of money Marta will have to spend, in dollars, if she increases each side of the fence by m meters is given by C = 12m.

How to find the values of the six trigonometric functions for 180?

Answers

I like to imagine a triangle in place of the negative x axis of the unit circle where the opposite side = 0, the adjacent is -1 and the hypotenuse = 1.
so sin 180 = 0/1 = 0, cos 180 = -1/1 = -1 and tan 180 = -0/-1 = 0.
Then the other ratios are csc is 1/0 = indeterminate, sec = 1/-1 = -1 and cot is indeterminate.

factor completely: x^3+8x^2+7x

Answers

there's an x in all terms so factor that out first.

x(x^2 + 8x + 7)

now it's x multiplied by a typical parabolic equation. factor this normally by seeing what multiplies to give 7 and adds to give 8.

x(x + 7)(x + 1)

Which improper fraction is equal to the mixed number 4 7/9 btw its a mixed number fraction

A. 37/9
B. 47/9
C. 43/9
D. 20/9

plz help asap

Answers

the answer is C 100% positive

When writing the slope as a fraction which numner goes on top?

Answers

The number that goes on top is the number that represents your move on the Y axis of a graph from the point so up or down.

The number goes on top tells line changes in the y direction and how much it rises.

what is slope?

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx

where, m is the slope

As, The top number indicates how much the line rises or moves in the y direction.

Given that the number is a 1 and is positive, we can infer that the line rises or moves up by one.

Hence, line changes in the y direction and how much it rises.

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11. Solve for the value of x in the triangle shown below. Show your work! (1 point for equation, 1 point for answer)

Answers

3 inside angles need to = 180, since it is a right triangle, the bottom left angle = 80 so the other 2 angles need to equal 90 degrees

so you have:

(8x+2) + (9x+3) = 90

combine like terms to get:

17x+5 = 90

subtract 5 from both sides:

17x = 85

divide both sides by 17

x = 85/17 = 5

x = 5

The line passing through the points (-7,4) and (-23,y) is parallel to a line that has a slope of -5/8. What is the value of y?

Answers

two lines that are parallel to each other, will have the same slope.

so if this line is parallel to another with a slope of -5/8, the slope of this line is also -5/8 then. We also know that it passes through -7, 4 and -23, y, let's do some checking.

[tex]\bf \begin{array}{lllll} &x_1&y_1&x_2&y_2\\ % (a,b) &({{ -7}}\quad ,&{{ 4}})\quad % (c,d) &({{ -23}}\quad ,&{{ y}}) \end{array} \\\\\\ % slope = m slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{y-4}{-23-(-7)}\implies \cfrac{y-4}{-23+7} \\\\\\ \cfrac{y-4}{-16}=\boxed{-\cfrac{5}{8}}\implies 8y-32=80\implies 8y=112 \\\\\\ y=\cfrac{112}{8}\implies y=14[/tex]

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In which of the following places do more accidents occur?A.Grocery storeB.HomeC.SchoolD.Shopping mall Most counties are controlled by a board of supervisors who make decisions collectively. true or false? The greatest biodiversity on earth is found in the __________ biome.A) taiga B) grasslands C) deciduous forest D) tropical rainforest Which lines in the poem suggest the preciousness of love?Sonnet 12by Elizabeth Barrett BrowningIndeed this very love which is my boast,And which, when rising up from breast to brow,[Doth crown me with a ruby large enowTo draw men's eyes and prove the inner cost,]This love even, all my worth, to the uttermost,[I should not love withal, unless that thouHadst set me an example], shown me how,[When first thine earnest eyes with mine were crossed],And love called love.[ And thus, I cannot speakOf love even, as a good thing of my own]:Thy soul hath snatched up mine all faint and weak,[And placed it by thee on a golden throne,]And that I love (O soul, we must be meek!)Is by thee only, whom I love alone.(Options are inside [ ]... More than one can be chosen.) Why was modern classification invented? Abel makes the following statement:"I have a 30% chance of being selected as the captain of the baseball team and a 20% chance of being elected student body president."What is the probability that Abel will be selected as the captain of the baseball team and will be elected student body president?Answers: 6% 10% 20% 50% The train speeds passed Holly at 70 km/h north ward. This spider crawls past lukes foot in the same direction at 30 m/h. What is the velocity of the spider relative to Holly? The body paragraph of an informative essay should be supported with ? What are some of the emotions depicted in the nine images in the center of the ceiling of the Sistine chapel?There's a screenshot of them there vBut you could probably find better screenshots on the internet Write (1-i)-(4-5i) as a complex number in standard form. I don't exactly get how to do this.. Can anyone help? Which of the following has the steepest graph? As Lucy pushes a box across the floor, she exerts a force on the box in the forward direction. What is the equal and opposite force in this interaction, according to Newton\'s third law? Putting on the you goggles will help you ... In the new cities in south asia around 500 bce:a. merchants and traders, who had contact with the outside world, rebelled against the caste system.b. city dwellers, compared to rural peasants, had more material wealth but lived more uncertain lives.c. rulers reserved to themselves the right to mint coins.d. accounting and financial record keeping had not yet emerged, which limited the growth of financial transactions.e. traders found that kings were able to disrupt their activities as kings made decisions about warfare without considering the concerns of the traders. Dipping your spoon into the bowl 4 times, what is the probability that you randomly select at least 1 heart Why did harriet beecher stowe inflame passions between north and south when she wrote? What influences the strength of an electric field? The wall at the front entrance to the rock and roll hall of fame and museum in cleveland, ohio, is an isosceles triangle. the triangle has a vertex angle of 102 degrees. what is the measure of the base angles? answer Timothy explains to his brother that the model y=4mt has a constant of variation of 4 and is an example of _____ variation. Which statements are true about the ordered pair (5, 6) and the system of equations?{x+y=13xy=21Select each correct answer.The ordered pair (5, 6) is a solution to the first equation because it makes the first equation true.The ordered pair (5, 6) is a solution to the second equation because it makes the second equation true.The ordered pair (5, 6) is not a solution to the system because it makes at least one of the equations false.The ordered pair (5, 6) is a solution to the system because it makes both equations true. Steam Workshop Downloader