A researcher performs a study in which he gives testosterone to 100 randomly chosen men and observes that 50% of them report feeling more motivated and invigorated one week later. Can this researcher conclude based on these findings that testosterone increases feelings of motivation and vigor

Answers

Answer 1

This researcher  cannot conclude based on these findings that testosterone increases feelings of motivation and vigor.

What is Research?

Research can be defined as the process of  investigating or making findings so as to reach or draw a conclusion based on the findings.

Research can also be defined as the process of collecting data, analyzing and interpreting the data collected in order to reach a conclusion.

Based on the given scenario the researcher cannot conclude that testosterone increases feelings of motivation and vigor based on his finding as their no enough data and evidence to support is findings.

Inconclusion this researcher  cannot conclude based on these findings that testosterone increases feelings of motivation and vigor.

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Related Questions

What is 60% of 50?

coins

Answers

Answer:

30

Step-by-step explanation:

do 50 divided by 10 wich is 5 so ever 5 is 10 percent so the do 5 times 6 to get 30!

Cube shape is very difficult

Answers

Answer:

A, C, and D are right.

A cube is basically six squares pushing against each other and since you can have a square you can also have a triangle considering you can cut it diagonally in half. And since a square is classified as a rectangle as well then C is also correct.

Step-by-step explanation:

Hope this helped.

A brainliest is always appreciated.

Due to symmetry, the probability that the standard normal random variable Z is less than 0 is equal to ______. Multiple choice question. 0

Answers

Answer:

.5

Step-by-step explanation:

The probability that a normal random variable is less than its mean is .5

Consider the trinomial 6x2 13x 6. The value of ac is. The value of b is. The two numbers that have a product of ac and a sum of b are 4 and.

Answers

The value of ac is 36 and the value of b is 13. Then the value of ac + b is 49. The two numbers are 4 and 9.

What is polynomial?

Polynomial is an algebraic expression that consists of variables and coefficients. Variable are called unknown. We can apply arithmetic operations such as addition, subtraction, etc. But not divisible by variable.

Consider the trinomial 6x² + 13x + 6.

Compare with the standard equation, we have

ax² + bx + c

Then we have

a = 6

b = 13

c = 6

The product of ac will be

ac = 6 × 6 = 36

The sum of ac and b will be

ac + b = 36 + 13 = 49

The two numbers that have a product of ac and a sum of b are 4 and 9.

More about the polynomial link is given below.

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Answer:

36,13,9

Step-by-step explanation:

Just took the test 2022

HELP ME EXPLAIN PLEASE HURRY!!!!

Answers

Answer:

40

Step-by-step explanation:

The formula is: a² + b² = c²

Looking at the picture, 41 is the hypotenuse of the triangle. We can now solve.

9² + b² = 41²

Which the answer is 40.

Brandon bought 21 chicken wings for $39. 90. How much would it cost for 15 wings?

Answers

Answer:

$28.50

Step-by-step explanation:

21 chicken wings= $39.90

1 chicken wing= 39.90÷21= $1.90

15 chicken wings= 15×1.90= $28.50

:)

Answer:

$28.50

Step-by-step explanation:

Knowing that :
Brandon brought 21 chicken wings for $39.90

Asking:

How much would it cost for 15 Wings?

Solve:

We first need to know how much is 1 Wings.

To find that Divide Cost by chicken

Thus, 39.90 divide by 21..

=1.90

Hence, 1 Wings ⇒ 1.90

Then Multiply by 15 wings to find the cost of 15 wings.

1.90 * 15 = 28.50

Therefore, 15 Wings Cost $28.50

[RevyBreeze]

good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.

Answers

Answer: C. [tex]f(n) = -4(-3)^{n-1}[/tex]

Step-by-step explanation: The formula for a geometric sequence is [tex]ar^{n-1}[/tex], where a = first term in the sequence

r = common ratio

n = position of term

Here they already told us a = -4, so we have to figure out r. We can see that in the sequence -4, 12, -36, 108... the terms are being multiplied by -3, which is why the negative and positive terms alternate.

Therefore, the formula is: [tex]f(n) = -4(-3)^{n-1}[/tex]

You can try inserting n to check it.

[tex]f(1) = -4(-3)^{1-1} = -4\\f(2) = -4(-3)^{2-1} = 12\\f(3) = -4(-3)^{3-1} = -36\\f(4) = -4(-3)^{4-1} = 108[/tex]

Option C

Let's verify

f(1)=-4(-3)^0=-4f(2)=-4(-3)^1=12f(3)=-4(-3)^2=-36

Hence verified

Factor completely
Solve: [tex]x^{3} + 2x^{2} -9x - 18[/tex]

please do:
step-by-step-explanation

Answers

sorry that the paper is crumbled .

but it’s (x+3)(x-3)(x+2)

help meeeee I'm going to fail ​

Answers

Answer:

A, C, and D, are correct

Step-by-step explanation:

We can find the answer to each of these by simply doing the math for each one

[tex]3*\sqrt{2} = 4.24\\\frac{1}{2} *\sqrt{68} = 4.123\\\sqrt{17} = 4.123[/tex]

Answer:

A, C, and D

Step-by-step explanation:

A is 4.24

B is 3.54

C is 4.12

D is 4.12

E is 5.29

a
In a class of 40 students, 35% of them walk to school. Half the number of the remaining students
take the school bus. How many students take the school bus?

Answers

Answer:

18

Step-by-step explanation:

35% of the 40 students that walk to school is: 14.

Half of the remaining students take school bus: 40-14 = 36/2 = 18

24 POINTS PLEASE HELP

Nathaniel has 3 hats and 3 belts in his closet. He chooses 1 hat followed by 1 belt.

Draw a tree diagram to model the sample space of Nathaniel choosing a hat followed by a belt out of his closet.

How many outcomes are possible?

Answers

Answer:

9 outfits

Step-by-step explanation:

i think this is what the question is asking hope this helped

35 + 2x = 60. HELP PLS

Answers

Answer:

=> x = 12.5

Step-by-step explanation:

=> 35 + 2x = 60

=> 2x = 60-35

=> 2x = 25

=> x = 25/2

=> x = 12.5

X = 12.5

35 + 2x = 60 - 35

2x = 25
/2 /2

X=12.5

what causes a leap year

Answers

Answer:

In a leap year, we add an extra day on 29 February to our calendar of 365 days. What goes around: The reason we have February 29 every four years is because of two different time cycles involved with the rotation of the Earth. Leap years happen every four years, except if the year is a multiple of 100
A leap year is cased To make up for the missing partial day, we add one day to our calendar approximately every four years.

Please Help ASAP I Need It Plsss

Answers

Answer:

need points lol

Step-by-step explanation:

What is the value of this expression?


( 12 1/3 + 5 1/3 ) - ( 7 4/8 - 7 1/6 )



Enter your answer on the box as a mixed number in simplest form.

Answers

Answer:

17 1/3

Step-by-step explanation:

12 1/3+ 5 1/3=17 2/3

7 4/8- 7 1/6=1/3

17 2/3-1/3= 156/9  Simplest form=17 1/3

Hope that helped.

PLSSS HELP IF YOU TURLY KNOW THISS

Answers

Answer:

2 4/9 because the filled in boxes stand for a whole and what's missing is 4 pieces from the last one which would be the numerator and the denominator would be 9 because that's how many squares are there in total.

Step-by-step explanation:

Answer:

2 5/9

Step-by-step explanation:

Count the full boxes, which there are two of them,
and then you count the number of colored boxes in the partially filled one.
There are 5 colored boxes.

Hence, you get 2 wholes and 5/9 colored boxes


So the answer is 2 5/9.

7. Find the length of a chord that is 5 inches from the center of a circle with a radius of 13 inches.

Answers

Answer:

i don't know I don't have ideas

BRAINLIEST!!! HELP DUE IN 27MINUTES

Lim 3x³ + 2x² + x + 1. x→0​

Answers

Answer:

3mx3Li+2x2+2x→0

Step-by-step explanation:

[tex]\lim_{x \to0} 3x^3 +2x^2+x+1=3(0)^3+2(0)^2+0+1= 1[/tex]

Hope that helps!

Definition of limit: Limits describe how a function behaves near a point, instead of at that point

On the speed-time graph, the Y-axis should be labeled as

Answers

The y-axis should be labeled as speed.

Break Even Analysis for Small Business 1) Jesse wants to start a business making and selling skateboards. She will charge $75 for each one. Her cost will be $30 per skateboard for materials. She must pay $500 per month rent (which includes utilities) so that she has a place to make and sell the skateboards. a) Write a rule for her revenue (money coming in). b) Write a rule for her cost.​

Answers

Answer:

  a) r(b) = 75b

  b) c(b) = 30b +500

Step-by-step explanation:

Revenue is the product of the selling price per unit and the number of units. The cost will be the sum of fixed (overhead) cost and production cost per unit multiplied by the number of units produced.

__

Let b represent the number of skateboards Jesse produces in a month.

a)

Jesse receives $75 for each skateboard sold. Her revenue from selling 'b' skateboards is ...

  r(b) = 75b

__

b)

It costs Jesse $30 for each skateboard produced, and $500 for overhead. Her total cost is ...

  c(b) = 30b +500

_____

Additional comment

In order to break even, Jesse's revenue must equal her cost:

  75b = 30b +500

  45b = 500

  b = 11 1/9

Jesse must produce and sell 12 skateboards each month to cover her costs. (In a real business, there are additional considerations related to inventory, shrinkage, returns, discounts, and other things that may increase cost or reduce revenue.) After covering costs, each additional skateboard sold will give Jesse a profit of $45.

How many minutes longer does it take Morowa to complete a job in three-quarters
of an hour than Osei who completes the job in five-twelfths of an hour!

Answers

The answer is 50 minutes

URGENT!!!! WILL GIVE BRAINLIEST TO FIRST RIGHT ANSWER!!!!!!
The first three terms of a sequence are given. Round to the nearest thousandth (if necessary).
6, 9, 27/2, ....
Find the 6th term.

Answers

geometric sequence

[tex]\tt U_n=ar^{n-1}[/tex]

a = 6 = first term

r = ratio = [tex]\tt \dfrac{9}{6}[/tex]

the 6th term (n=6)

[tex]\tt U_6=6\times (\dfrac{9}{6})^{6-1}\\\\U_6=6\times \dfrac{9}{6}^5\\\\U_6=\dfrac{9^5}{6^4}=45.5625\rightarrow rounded~to nearest~thousandth=45.563[/tex]

Your payment is $300 per month for 48 months and you made a $2,000 down payment. What is your total cost of leasing?

$14,600
$16,400
$14,400
$12,400

Answers

Answer:

$12,400

Step-by-step explanation:

$300 x 48 = $14,400

$14,400 - $2000(down payment) = $12,400

Solve this system of equations algebraically: y x = 19 – x2 x y = 80 1. Isolate one variable in the system of equations. Y = –x2 – x 19 y = –x 80 2. Use substitution to create a one-variable equation. –x 80 = –x2 – x 19 3. Solve to determine the unknown variable in the equation. The system has real number solution(s).

Answers

System of equations helps to solve real-life problems. The system of equations will not have no solution.

What is a System of the equation?

Inconsistent System

A system of equations to have no real solution, the lines of the equations must be parallel to each other.

Consistent System

1. Dependent Consistent System

A system of the equation to be Dependent Consistent System the system must have multiple solutions for which the lines of the equation must be coinciding.

2. Independent Consistent System

A system of the equation to be Independent Consistent System the system must have one unique solution for which the lines of the equation must intersect at a particular.

The two of the system of equations given to us are,

[tex]y+x=19-x^2[/tex]

[tex]x+y = 80[/tex]

Now,

1. The first step is to isolate one variable in the system of equations,

[tex]y=19-x^2-x[/tex]

[tex]y=80-x[/tex]

2. The second step is to substitution to create a one-variable equation.

[tex]80-x=19-x^2-x\\x^2-x+x=19-80\\x^2 = -61[/tex]

Now, since the value of x  is the negative square root. therefore, the system of equations will not have a real number of solutions.

If we plot the two equations on the graph, then the line of the system of equations will not intersect any point, therefore, the system of equations will have no solution.

Hence, the system of equations will not have no solution.

Learn more about the System of the equation:

https://brainly.com/question/12895249

Answer:

0 solutions

Step-by-step explanation:

Edge 2022

A cone has a volume of 376.8 cubic
millimeters and a height of 10
millimeters. What is its radius?

Answers

Answer:

36.23

Step-by-step explanation:

Finding the radius of a cone with volume given =

3V / πh, π = 22/7 =  3.14

3 x 376.8 / π x h  =  1130. 4 / π x 10

1130.4 / 3.14 x 10 = 1130.4 x 31.42 = 36.23

   



A missing piece of a board game, a circular disk, had an area of 100,608. 7. The replacement disks online a

listed using circumferences. What size circumference should be ordered?

1. 179 mm

2. 1,263,645. 774 mm

3. 0. 7 mm

4. 1,124. 12 mm

Answers

First determine the radius of the circle from the area of the circle
Use the radius determined above to calculate the circumference
Area of a circle = np2
where r= radius
n= pi = 3.14
100.608.7mm=mp2
to determine the radius, divide both sides of the equation by 3.14
32,040.98726mm = p2
Find the square root of 32,040.98726mm
V32,040.98726mm
r= 179mm
Circumference of a circle = 2nr
2 × 179 × 3.14 = 1.124.12 mm

Hope this helps

This year, the number of seventh graders at a middle school has increased by 20% (on top of the number of seventh grader last year). there are now 180 seventh graders. What was the number of seventh grader last year?

Answers

144 bc 180*(1-.2) = 144

HELP!!!! Select ALL the correct answers.
Identify the two tables which represent quadratic relationships.

Answers

I’m pretty sure it’s the last two.

A boy throws a baseball across a field. The ball reaches its maximum height, 18 meters, after 1 second. After approximately 2. 3 seconds, the ball lands on the ground. The ball’s motion can be modeled using the function f(x) = –10x2 20x 8. What is the height of the ball 1. 5 seconds after it is thrown? 11. 7 meters 13. 8 meters 15. 5 meters 17. 5 meters.

Answers

The height of the baseball after the 1.5 seconds of time as the boy throw the ball is 15.5 meters.

How to model a mathematical function?

The mathematical functions is used to represent the general problem in the mathematical way to solve them.

Steps to write down the simple mathematical function-

Identify all the factors of the expression.Assume a variable for the changing values.Put a coefficient for the variable, if there is any rate of change of variable.Use constant numbers for the fixed values.

A boy throws a baseball across a field. The ball reaches its maximum height, 18 meters, after 1 second.

After approximately 2.3 seconds, the ball lands on the ground.

The ball’s motion can be modeled using the function

[tex]f(x) = -10x^2 +20x+ 8[/tex]

Here, x represents the time in seconds.

As, the height of the ball 1.5 seconds after it is thrown has to be found out. Thus, put the values of in the above equation as,

[tex]f(x) = -10(1.5)^2 +20(1.5)+ 8\\f(x)=-22.5+30+8\\f(x)=15.5\rm \; m[/tex]

Hence, the height of the baseball after the 1.5 seconds of time as the boy throw the ball is 15.5 meters.

Learn more about the modeling the mathematical function here;

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Shannon needs 20g of 80% gold to make a pendant. She has some 85% gold and some 70% gold. How much of each should she use of each alloy, use two linear equations to solve

Answers

Answer:

85%: 13 1/3 grams70%: 6 2/3 grams

Step-by-step explanation:

Two equations can be written to describe the desired relationships. One can describe the total quantity of gold alloy needed. The other can describe the amount of gold in the combination of alloys.

Let x and y represent the quantities in grams of 85% and 70% gold alloy needed, respectively.

  x + y = 20 . . . . . . Shannon needs a total of 20 grams

  0.85x +0.70y = 0.80(20) . . . . . the amount of gold in the mix of alloys

__

These equations are often nicely solved by substitution. Substituting for y, we have ...

  0.85x +0.70(20 -x) = 0.80(20)

  0.15x = 0.10(20) . . . . . . . eliminate parentheses, subtract 0.70(20)

  x = 40/3 = 13 1/3 . . . . . divide by 0.15

  y = 20 -13 1/3 = 6 2/3

Shannon should use 13 1/3 grams of 85% alloy and 6 2/3 grams of 70% alloy.

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