A study of 420,046 cell phone users found that 140 of them developed cancer of the brain or nervous system. Prior to the study of the cell phone use, the rate of such cancer was found to be .0347% for those not using cell phones.

Answers

Answer 1

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Answer: False study.

Explanation: This is not true, and is purely by chance.

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

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Related Questions

help me please:(**********​

Answers

Answer:

11.7

Step-by-step explanation:

First HK can be found via Pythagorean Theorem

6^2 + 10^2 = 36 + 100 = 136

The square root of 136 is (rounded to the nearest tenth): 11.7

GJ is congruent to HK

GJ = 11.7

Suppose that are Yi.....Yn are i.i.d random variables with a Nâ(âμY, Ï^2Y â) distribution. How would the probability density of ȳ change as the sample size n âincreases? â

a. As the sample sizeâ increases, the variance of decreases.â So, the distribution of becomes less concentrated around.
b. As the sample sizeâ increases, the variance of decreases.â So, the distribution of becomes highly concentrated around.
c. As the sample sizeâ increases, the variance of increases.â So, the distribution of becomes highly concentrated around.
d. As the sample sizeâ increases, the variance of increases.â So, the distribution of becomes less concentrated around.

Answers

Answer:

b. As the sample size â increases, the variance of decreases. â So, the distribution of becomes highly concentrated around.

Step-by-step explanation:

Let : Yi,.... Yn are = i.i.d are random variables. The probability density of the distribution varies along with the sample size. When the sample size changes, the probability density of [tex]$E^3$[/tex] also changes.

The probability distribution may be defined as the statistical expression which defines the likelihood of any outcome for the discrete random variable and it can be opposed to the continuous random variable.

In the context, when the size of the sample of the distribution size increases, it causes a decrease in the variance and so the distribution becomes highly concentrated around.

Which statement best describes the effects on the graph of f(x)=3x when f(x) is replaced by −3f(x+7)−2?

Answers

Answer: to move a graph up c units, add c to the whole function

so basicaly what you did is you subtraced 3 from the whole function

the whole graph shifts 3 units down

B is answer

Step-by-step explanation:

Tessa is training for a marathon she runs 13 km a day for 3 days

Answers

nice

i think there's supposed to be more to the problem lol

???

No question but I gonna answer anyway.

The total number of km she ran in 3 days = 13 x 3=39.

You hit a tennis ball with an initial vertical velocity of 25 m/s. The ball leaves the tennis racket 2 meters above the ground, h_o. How much time does your opponent have before the ball hits the ground on the other side of the net, h(t)? Use h(t) = -5t^2 + v_0t + h_0 where h(t) is the height of a tennis ball being hit h_0 is the initial height v_0 is the velocity in meters/second after time (t) in seconds

Answers

Answer:

here

Step-by-step explanation:

Solving a quadratic equation, it is found that your opponent has 5.08 seconds to react before the ball hits the ground on the other side of the net.

What is the quadratic equation for the ball's height?

It is given by:

[tex]h(t) = -5t^2 + v_0t + h_0[/tex]

In which:

[tex]v_0[/tex] is the initial velocity of the ball.[tex]h_0[/tex] is the initial height of the ball.

You hit a tennis ball with an initial vertical velocity of 25 m/s. The ball leaves the tennis racket 2 meters above the ground, hence [tex]v_0 = 25, h_0 = 2[/tex].

Then, the equation is:

[tex]h(t) = -5t^2 + 25t + 2[/tex]

It hits the ground when h(t) = 0, hence:

[tex]-5t^2 + 25t + 2 = 0[/tex]

The solutions are h = 5.08 and h = -0.08.

Since time is a positive measure, your opponent has 5.08 seconds to react before the ball hits the ground on the other side of the net.

More can be learned about quadratic equations at https://brainly.com/question/24737967

Which of the following theorems verifies that ABC ~ STU?

Answers

Answer:

B. AA

Step-by-step explanation:

The diagram given shows that two angles in ∆ABC are congruent to two corresponding angles in ∆STU.

Invariably, the third unknown angle of both triangles would also be equal going by the third angle theorem.

Thus, based on the AA Similarity Theorem which says that two triangles are similar to each other if two corresponding angles of one is congruent to two angles in the other, ∆ABC ~ ∆STU.

Harry’s tv plan cost 49.99 per month plus 3.49 per first run movie how many first run movies can he watch if he wants to keep his monthly bill to be a maximum of 100

Answers

Answer:

He can watch 14 first run movies to keep his monthly bill to be a maximum of $ 100.

Step-by-step explanation:

Given that Harry’s TV plan cost $ 49.99 per month plus $ 3.49 per first run movie, to determine how many first run movies can he watch if he wants to keep his monthly bill to be a maximum of $ 100, the following calculation must be performed:

100 - 49.99 = 50.01

50.01 / 3.49 = X

14.32 = X

49.99 + (3.49 x 14) = 98.85

Thus, he can watch 14 first run movies to keep his monthly bill to be a maximum of $ 100.

Please help me I need help with this as quick as possible my dad is right next to me...

Answers

Answer:

there isnt a question... what do you need help with?

Answer:

.-. >_>

Step-by-step explanation:

You can perform 6 push-ups in 24 seconds. Write and
graph an equation that represents the relationship
between time and the number of push-ups. At this rate,
how many pushups can you perform in 2 minutes?
PLS HURRY!!!

Answers

Answer:

480 push ups

Step-by-step explanation:

24/6 = 4

meaning they are doing 4 push ups per second, this is your slope

the equation of your line is y = 4x, you can graph this using a table of values (i attached a graph tho)

2 minutes = 120s

y = 4(120)

y = 480

Name the coordinates of P(-8, 3) under a reflection across the y-axis.

Answers

Answer:

(8,3)

Step-by-step explanation:

Hello There!

This is the rule for reflection over y axis:

(x,y) -----> (-x,y)

So if the point (-8,3) we're to reflect over the y axis then the x value would stay the same but the sign would flip

So instead of -8 it would be +8

The y value does not change so the new coordinates would be

(8,3)

The two-way table shows the number of sport utility vehicles with certain features for sale at the car lot. A 4-column table has 3 rows. The first column has entries third-row seats, no third-row seats, total. The second column is labeled 4-wheel drive with entries 18, 7, 25. The third column is labeled no 4-wheel drive with entries 12, 28, 40. The fourth column is labeled total with entries 30, 35, 65. What is the probability that a randomly selected car with no 4-wheel drive has third-row seats?

Answers

Answer:

a. 0.3

Step-by-step explanation:

The probability that a randomly selected car with no 4-wheel drive has third-row seats is 0.3 option (A) 0.3 is correct.

What is probability?

It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

Let's suppose A is the car with no 4-wheel drive

Let's suppose B is the car with third-row seats

As we know,

P(B|A) = n(A ∩ B)/n((A)

The probability that a randomly selected car with no 4-wheel drive has third-row seats:

From the table:

n(A ∩ B) = 12

n((A) = 40

P(B | A) = 12/40

P(B | A) = 0.3

Thus, the probability that a randomly selected car with no 4-wheel drive has third-row seats is 0.3 option (A) 0.3 is correct.

Learn more about the probability here:

brainly.com/question/11234923

#SPJ6

A biologist studying trees constructed the confidence interval (0.14, 0.20) to estimate the proportion of trees in a large forest that are dead but still standing. Using the same confidence level, the interval was later revised because the sample proportion had been miscalculated. The correct sample proportion was 0.27. Which of the following statements about the revised interval based on the correct sample proportion is true?
A) The revised interval is narrower than the original interval because the correct sample proportion is farther from 0.5 than the calculated proportion is
B) The revised interval is narrower than the original interval because the correct sample proportion is closer to 0.5 than the mis-calculated proportion is
C) The revised interval is wider than the original interval because the correct sample proportion is farther from 0.5 than the mis-calculated proportion is
D) The revised interval is wider than the original interval because the corect sample proportion is closer to 0.5 than the mis-calculated proportion is.
E) The revised interval has the same width as the original interval.

Answers

Answer:

D) The revised interval is wider than the original interval because the corect sample proportion is closer to 0.5 than the mis-calculated proportion is.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

The margin of error is:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

The larger the closer to 0.5 the value of [tex]\pi[/tex], the larger the margin of error and the wider the interval is.

A biologist studying trees constructed the confidence interval (0.14, 0.20)

This means that the estimate used was of:

[tex]\pi = \frac{0.14 + 0.2}{2} = \frac{0.34}{2} = 0.17[/tex]

The correct sample proportion was 0.27.

With [tex]\pi = 0.27[/tex], the margin of error is larger as 0.27 is closer to 0.5 than 0.17. Thus, the revised interval will be wider, and the correct answer is given by option D.

find the surface area of a square pyramid if the base area is 25 square inches and the area of each triangular side is 36 square inches

Answers

9514 1404 393

Answer:

  169 square inches

Step-by-step explanation:

The surface consists of one square base and four triangles. So, the total surface area is ...

  base area + 4 × triangle area = 25 in² + 4×36 in² = 169 in²

Population The world population in 2000 was approximately 6.08 billion. The annual rate of increase was about 1.26%. If this rate of increase continues, what will be the approximate world population in 2050?​

Answers

Answer:

Population in 2050 = 11,369,600,000

Step-by-step explanation:

Given:

Population in 2000 = 6,080,000,000

Rate of increase = 1.26%

Find:

Population in 2050

Computation:

Number of year = 50

Population in 2050 = Population in 2000[1+r]ⁿ

Population in 2050 = 6,080,000,000[1+1.26%]⁵⁰

Population in 2050 = 6,080,000,000[1.87]

Population in 2050 = 11,369,600,000

Find the area of the shaded region.
24 In
18 in
6 in
24 in
inches squared
Area

Answers

Answer:

180

Step-by-step explanation:

triangle: 1/2bh = 1/2 24x24 = 288

rectangle : 18x6 = 108

288-108 = 180in ^2

Answer: 180in^2


Area of triangle: (bh)/2

A = (24*24)/2
A = 288in^2


Area of unshaded region: LW

A = 18(6)
A = 108in^2


Area of shaded region: Area of triangle - Area of unshaded and region


A = 288 - 108
A = 180in^2

Bill is renovating this house.
Bill measures the length of the front of the house.
The length is most likely to
1.440 m
O
14,40 m
14.40 mm
144.0 m
1440 mm
Scroll to read more »

Answers

9514 1404 393

Answer:

  14.40 m

Step-by-step explanation:

A typical suburban home site in the US might have a width between 15 and 50 meters. So, the front of Bill's house is most likely to be about 14.4 m, of the choices offered.

7 cups converted to fluid ounces.


No links they don’t work

Answers

56~~~~~~~~~~~~~~~~~~~~~~

The quadratic formula gives which roots for the equation 2x^2 + x - 6 = 0?

Answers

Answer:

The roots are [tex]x = (\frac{3}{2}, -2)[/tex], which is given by option C.

Step-by-step explanation:

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

[tex]ax^{2} + bx + c, a\neq0[/tex].

This polynomial has roots [tex]x_{1}, x_{2}[/tex] such that [tex]ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})[/tex], given by the following formulas:

[tex]x_{1} = \frac{-b + \sqrt{\Delta}}{2*a}[/tex]

[tex]x_{2} = \frac{-b - \sqrt{\Delta}}{2*a}[/tex]

[tex]\Delta = b^{2} - 4ac[/tex]

In this question, we have that:

[tex]2x^2 + x - 6 = 0[/tex]

Which is a quadratic equation with [tex]a = 2, b = 1, c = -6[/tex]. So

[tex]\Delta = 1^{2} - 4*2(-6) = 1 + 48 = 49[/tex]

[tex]x_{1} = \frac{-1 + \sqrt{49}}{2*2} = \frac{6}{4} = \frac{3}{2}[/tex]

[tex]x_{2} = \frac{-1 - \sqrt{49}}{2*2} = \frac{-8}{4} = -2[/tex]

So the roots are [tex]x = (\frac{3}{2}, -2)[/tex], which is given by option C.

If a cylinder has a height of 5 and a volume of 98, what is the radius to the nearest tenth?

Answers

Answer:

r ≈ 2.5

Step-by-step explanation:

98 = 5(πr^2)

divide 5 by both sides

19.6 = πr^2

divide π by both sides

6.2388 = r^2

square root both sides

r = 2.49777

r ≈ 2.5

I will give brainliest

You want to put a stake every metre around the perimeter of a square plot that measures 100 metres on every side. How many stakes will you need?

Answers

4(100)=400
400/1=400
You will need 400 stakes

The number of stakes that you need to be required should be 400 stakes.

Calculation of the number of stakes:

Since You want to put a stake every metre around the perimeter of a square plot that measures 100 metres on every side.

So here the square does have 4 sides

So,

= 100 (4)

= 400

hence, The number of stakes that you need to be required should be 400 stakes.

Learn more about perimeter here: https://brainly.com/question/24891826



Aşağıda verilen balik kılçığı diyagramını tamamlayalım.

Answers

Answer:  

Let's complete the fishbone diagram given below

thats  what they said

Step-by-step explanation:

Need help quick!!!!! Karl set out to Alaska in his truck the amount of fuel remaining in the trucks tank in liters as a function of distance driven is graphed how fast did
the truck consume it’s fuel

Answers

Answer:

can you plz picture the graph so my answer you correctly .

What value of x would make lines land m parallel? ​

Answers

Answer:

[tex]x = 75[/tex]

Step-by-step explanation:

Given

See attachment

Required

The value of x that makes l and m parallel

Let the angles be ABC (See attachment 2)

[tex]\angle CAB[/tex] is corresponding to 50 degrees. So:

[tex]\angle CAB=50[/tex]

[tex]\angle ABC[/tex] is corresponding to 55 degrees. So:

[tex]\angle ABC = 55[/tex]

This means that:

[tex]\angle ABC + \angle CAB + x = 180[/tex]

[tex]50 +55 + x = 180[/tex]

Solve for x

[tex]x = 180 - 50 - 55[/tex]

[tex]x = 75[/tex]

A recipe uses 214 cups of flour for a batch of cookies. Henry makes 10 batches of cookies for a bake sale. How many cups of flour does Henry need? can someone tell me the qestion

Answers

I hope this helps you answer your question.

PLSS HELP ASAP! Only answer if you know pls I'm running out of points & no links to other sites or ill report you

Answers

Answer:

90-35=55

x=55

Step-by-step explanation:

Answer:

x = 55

Step-by-step explanation:

x and 35 must = 90 degrees because of the Angle Addition Postulate. So if you subtract 90 and 35, you get x.

Convert 121 days to seconds

Answers

Answer:

10,454,400 sec

Step-by-step explanation:

1Day=24hr

1hr=60min

1min=60sec

121 days=121*24*60*60=10,454,400sec

(−5g5h6)2(g4h2)4
i need the simplified answer asap plz

Answers

Answer:

-40g^{9}h^{8}

Step-by-step explanation:

Look at the cylinder.
The cylinder is sliced in half, as shown by the dotted line.
Which shape is the cross section that is formed?
circle
cone
O rectangle
O sphere

Answers

rectangle for sure my teacher told me

Function f is defined by f (x) = 1.5º. Function g is defined by g(x) = 500:c² + 3452
a. Which function is quadratic? Which one is exponential?
Fill in each blank with the correct choice.

Answers

First one is exponential and the second one is a quadratic function.

Find the surface area of the number cube below.

Answers

Answer:

Surface area = 24 in.²

Step-by-step explanation:

Surface area of the cube = 6a²

Where,

a = length of the each side of the cube = 2 in.

Plug in the value into the formula

Surface area of the cube = 6(2²)

= 6 × 4

Surface area = 24 in.²

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