a large study used records from canada's national health care system to compare the effectiveness of two ways to treat prostate disease. The two treatments are traditional surgery and a new method that does not require surgery. The records described many patients whose doctors had chosen each method. The study found that patients treated by the new method were significantly more likely to die within 8 years. You have 300 prostate patients who are willing to serve as subjects in an experiment to compare the two methods. Describe a completely randomized design for this experiment. Write a few sentences describing how you would implement your design.

Answer:

5x-3x-6=18

2x=18+6

2x=24

x=24÷2

x=12

Answer:

x = 1/2

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Algebra I

Step-by-step explanation:

Step 1: Define

Identify

2x - 1 = 1 - 2x

Step 2: Solve for x

Answer:

For 100 miles he uses 3.571 gallons of gasoline.

In equation form it is y/x*100

Step-by-step explanation:

Unitary Method

He travels 28 miles per gallon of gasoline.

For 1 mile he uses  1/28 gallons

For 100 miles he uses 1/28 * 100= 100/28= 3.571 gallons of gasoline.

Let x be the miles and y be the gallons of gasoline used to travel x miles.

Then for 1 mile  the gallons of gasoline used will be y/ x gallons.

For 100 miles  the gallons of gasoline used will be y/x *100 gallons.

In equation form it is y/x*100 gallons for 100 miles where x is the number of miles and y is the amount of gallons.

Answer:

The radius, r ≈ 6.55 m

Step-by-step explanation:

The given parameters are;

An inscribed hexagon in a circle

The area of the hexagon = Area of the circle - 24 m²

The formula for the area of the circle = π·r² = π × r²

The area of each of the six equilateral triangle in the hexagon = √3/4 × r²

Where;

r = The radius of the circle

The area of a sector of a circle in which the equilateral triangle is inscribed = 60/360×π·r² = 1/6×π·r² = 1/6 × Area of the circle

Given that the sector of the circle in which one of the six equilateral triangles of the hexagon is inscribed is 1/6 the area of the circle, the difference in area between the equilateral triangle and the sector = 24/6 = 4

Therefore, the difference in the area between the sector of the circle and the area of the equilateral triangle = 4 m²

We then write;  1/6×π·r²- √3/4 × r² = 4

r²·(1/6×π- √3/4) = 4

r² = 4/(1/6 ×π - √3/4) = 48/(2·π -3·√3)

r = √(48/(2·π -3·√3) = 6.55 m to 2 decimal places

The radius, r ≈ 6.55 m.

Answer:

A) 2

Step-by-step explanation:

We already know that [tex]i[/tex] equals -1, so we can substitute that into the expression.

[tex](\sqrt{3} +(-1))(\sqrt{3} -(-1))\\(\sqrt{3} -1)(\sqrt{3}+1)[/tex]

Now we can use the distributive property to solve the rest

[tex](\sqrt{3} -1)(\sqrt{3}+1)\\\sqrt{3} *\sqrt{3} +\sqrt{3} -\sqrt{3}-1\\ 3+0-1\\=2[/tex]

Hope this helps! I apologize if I get this incorrect.

Answer:

see below:

Step-by-step explanation:

2y–6=0

a.  slope intercept form using y = mx + b

   y = 6/2

   y = 3

b.  slope: use the slope intercept form: y = mx + b

    slope = m = 0

c.  y-intercept = (0,3)

Answer:

slope intercept form: y=3

the slope:0

the y-intercept(0,3)

Step-by-step explanation:

Answer:

the first choice, the second choice, and the last choice

Step-by-step explanation:

5 and 6 because they are alternate angles

2 and 3 because they are corresponding angles

2 and 4 because they are corresponding angles

Answer:

x=127

Step-by-step explanation:

total sum of all angle of triangle is 180 degree

Now,

taking angle A let interior angle be Y

taking angle C let interior angle be Z

Again, In angle A

the sum of interior angle and exterior angle is 180 degree being staright line

Or, y+(x+5)=180

or,x+y=180-5

or, x+y=175

or,y=175-x --------eqn 1

In angle C

the sum of interior angle and exterior angle is 180 degree being staright line

or, x+z=180

or, z=180-x ----------eqn2

Again, In triangle ABC

total sum of all angle of triangle is 180 degree.

Angle A+ Angle B + AngleC=180

Or, y+79+z=180 -------eqn3

putting the value of eqn-1 and eqn-2 in eqn-3

Or, 175-x+79+180-x=180

Or, 431-180= 2x

Or, 254÷2=x

hence X= 127 degree

Answer:

c127

Step-by-step explanation:

Great! So let’s solve for Joe’s Plumbing charges first. To find his price for 3 hours, solve J(3)=45(3)=$135.

Now let’s find Mark’s Plumbing charges. To find his price for 3 hours, plug 3 into M(t)=40t+25. So, M(3)=40(3)+25=$145.

Therefore, Joe’s Plumbing is cheaper than Matt’s plumbing by 10 dollars for a 3 hour job.

Answer:

x=5

Step-by-step explanation:

3x^2=15x

Subtract 15x from both sides

3x^2-15x=0

Factor out 3x

3x(x-5)=0

Since 0 divided by any number is zero, we get that:

x-5=0

x=5

Answer: are factoring, using square roots, completing the square and quadratic formula.

Step-by-step explanation:

Answer: I thibk it is

a^8c^6

_______

b^10

Answer:

Domain is the time in minutes

Range is the amount of water in liters

y≤75 liters

x≤15 minutes

The correct answer is 3.6 because you only divide 18 by 5 and you'll get your answer.

The decimal equivalent of 18/5 is 3.6.

To convert a fraction to a decimal, you divide the top number by the bottom number. In this situation, you take the number 18 and divide it by the number 5.

When you divide, you get 3 as your answer and you have 3 left over. So, the decimal equivalent is 3. 6

Learn more about decimal

https://brainly.com/question/703656

#SPJ6

Answer:

-20

Step-by-step explanation:

you loss means it's a negative number

Answer:

-20

Step-by-step explanation:

-20 if added to a number, such as 40, it's would result in 20.

Answer:

12-12=21

Step-by-step explanation:

i think it is that

Answer:

Yes

Step-by-step explanation:

Multiply -10 on both sides so x=-20

Answer:

D

Step-by-step explanation:

The Correct Answer Is D, You Will Estimate All Of Your Answers Up, And One Down.

Answer:

1, 4 nope 2, 3 yep

Step-by-step explanation:

Answer:

the answer is letter B. $323.15

Step-by-step explanation:

Answer:

B: 323.15

Step-by-step explanation:

[tex](\frac{116+165}{10} )*11.50[/tex]

Answer:

b.   [tex] f^{-1}(x) = x^3 - 2 [/tex]

Step-by-step explanation:

[tex] f(x) = \sqrt[3]{x + 2} [/tex]

[tex] y = \sqrt[3]{x + 2} [/tex]

[tex] x = \sqrt[3]{y + 2} [/tex]

[tex] (x)^3 = (\sqrt[3]{y + 2}^3 [/tex]

[tex] x^3 = y + 2 [/tex]

[tex] y = x^3 - 2 [/tex]

[tex] f^{-1}(x) = x^3 - 2 [/tex]

Answer: b.   [tex] f^{-1}(x) = x^3 - 2 [/tex]

Answer:

x < - 2

Step-by-step explanation:

Step 1:

5x + 7 < 2x + 1           Equation

Step 2:

3x + 7 < 1        Subtract 2x on both sides

Step 3:

3x < - 6         Subtract 7 on both sides

Step 4:

x < - 6 ÷ 3        Divide

Answer:

x < - 2

Hope This Helps :)

Answer:

which question

Step-by-step explanation:

hope this helps u

Answer:

What question there is nothing here

Answer:

x= -25

Step-by-step explanation:

Answer:

179

Step-by-step explanation:

40+156=196

375-196= $179.00

if I'm not wrong

Answer: $59 increase

Step-by-step explanation: since we don't know how much she had in her bank account prior to making 4 withdrawals it's hard to find the answer so a like and rating would be appreciated. We know she withdrew $40 dollars 4 times which would mean she withdrew $160 dollars, then she used her card for a $156 dollar purchase, so if we add $160 and $156 dollars we get $316 dollars spent. Then she deposited a check of $375 dollars into the bank account so we have to subtract $316 from $375 dollars to get $59 dollars, now since we subtracted and we are left with an extra amount rather than the money wasted we started with it means it's an increase as we are left with $59 and not with a price lower than $316.

Answer:

1. 16

2. 1

3. 1

4. 4

5. 2

6. 8

7. 1

8. 9

9. 90

10. 10

Step-by-step explanation:

Answer:   c. The pattern shows the points are far from the zero line, indicating a good fit for a nonlinear model.

d. The pattern is not random, indicating a good fit for a nonlinear model.

Step-by-step explanation:

A residual plot is a graph that represents

Two main kids of plot are there.

First plot gives a random pattern, indicates a good fit for a linear model.

Other plots are non- random, indicates a good fit for a non- linear model.

Two points are correct for any residual plots :

c. The pattern shows the points are far from the zero line( basically u-shaped), indicating a good fit for a nonlinear model.

d. The pattern is not random, indicating a good fit for a nonlinear model.

Answer:

22.222222%

Step-by-step explanation:

all together the entire video is 9 min and 2 of those are the intro so 2/9 and that as a percent is the answer

Answer: 22.23% (Infinitely Long)

Step-by-step explanation:

9 = 100%

9 (100%) - 7 (77.78%) [Also Infinitely Long] = 2 (22.23%) [Infinitely Long]

There ya go. :)