Does anyone know? Pls help lol

Answer:

5years

Step-by-step explanation:

I=70

P=350

R=4

➜PRT=100 I

➜T=100 I/PR

➜100×70/350×4

➜7000/1400

➜5years

The probability that the tosses are all the same is 1/2^n, where n is the number of tosses.

This is because the probability of each toss being the same is 1/2 (heads or tails). So the probability of all three tosses being the same is the product of the probabilities of the individual tosses:

1/2 * 1/2 * 1/2 = 1/2^3 = 1/8.

The reason for this is that the probability of each toss being the same is independent of the others. That is, the result of one toss does not affect the result of another toss.

As a result, the probability of all tosses being the same is the product of the probabilities of the individual tosses.

In summary, the probability of all tosses being the same is 1/2^n, where n is the number of tosses.

To know more about probability refer here:

https://brainly.com/question/30034780

#SPJ11

a. The sales tax is 6% of the original price of $60, which is:

0.06 x $60 = $3.60

So the total cost of the watch including tax is:

$60 + $3.60 = $63.60

b. The discount is 15% of the original price of $60, which is:

0.15 x $60 = $9

So the sale price of the watch is:

$60 - $9 = $51

c. To find the total cost of the watch including tax, we need to calculate the sales tax on the discounted price of $51:

0.06 x $51 = $3.06

So the total cost of the watch for your friend is:

$51 + $3.06 = $54.06

d. The percent change in the total cost can be calculated using the formula:

percent change = (new value - old value) / old value x 100%

For you, the old value was $60 and the new value (including tax) was $63.60. So the percent change is:

(percent change) = ($63.60 - $60) / $60 x 100% ≈ 6%

For your friend, the old value was $60 and the new value (including tax and discount) was $54.06. So the percent change is:

(percent change) = ($54.06 - $60) / $60 x 100% ≈ -9% (note that this is a decrease, since the new value is less than the old value)

Out of all the given situations, all are fair gambles,

Any gamble is considered to be a fair gamble if the expectation of it is 0. Here, gamble means any situation which has a probabilistic uncertainty attached to it.

The expectation of any game is

E(X) = ∑xp(x)

In the first case

The probability to get a had or tails on flipping a coin is 1/2

Hence the expectation will be

E(X) = 0.5 X 10  +  0.5 X (-10)

= 5 - 5

= 0

Hence this is a fair gamble

In the next gamble, two coins are tosses

The probability to get 2 head is 1/4

The probability to get 2 tails is 1/4

The probability to get one head and one tail is 1/2

Hence,

E(X) = 0.25 X 10  +  0.25 X (-10)  +  0.5 X 0

= 2.5 - 2.5

= 0

Hence this too is a fair gamble

Here,it is given that

Probability              Gain

0.5                            $100

0.25                       - $200

0.25                           $0

Therefore,

E(X) = 0.5 X 100  +  0.25 X (-200)  +  0.25 X 0

= 50  - 50

= 0

Hence, all are fair gambles.

To know more about Uncertainity visit

https://brainly.com/question/16155274

Correct Question

which of the following is a fair gamble?

one coin toss: win $10 if heads, lose $10 if tails.

two coin tosses: win $10 if two heads, lose $10 if two tails, and no change of wealth otherwise.

a game in which you win $100 with a probability of 50%, lose $200 with a probability of 25%, and gain nothing with a probability of 25%.

all of the above are fair gambles.

#SPJ4

Answer:

2 is the correct answer

Based on the survey results, a typical parent would spend around $44 on their child's birthday gift, with a margin of error of approximately $2.9 at a 99% confidence level.

To estimate how much a typical parent would spend on their child's birthday gift, we use the sample mean and standard deviation as estimates of the population parameters. The sample mean of $44 serves as the point estimate for the population mean.

To determine the margin of error, we use the standard error, which is the standard deviation divided by the square root of the sample size. In this case, the standard error is approximately $2.5 (standard deviation of $10 divided by the square root of 20). Multiplying the standard error by the critical value corresponding to a 99% confidence level (z-value of 2.58 for a large sample size) gives us the margin of error.

Therefore, the typical amount spent on a child's birthday gift is estimated to be $44, with a margin of error of approximately $2.9. This means that we can be 99% confident that the true mean amount spent by parents falls within the range of $41.1 to $46.9.

Learn more about standard error here:

https://brainly.com/question/13179711

#SPJ11

Answer:

Step-by-step explanation:

Given :

x = -6

-7x + 6y = -18 ... i)

Putting the value of x in equation ...i)

=> -7 (-6) + 6y = -18

=> 42 + 6y = -18

=> 6y = -18 -42

=> 6y = - 60

=> y = -60/6

=> y = -10

The value of y = -10 and x = -6

Answer:

x= 4, y=6

Step-by-step explanation:

9x-9y = -18

9x=-18+9y

x=-2+y

-6(-2+y) + 9y = 6

-12-6y+9y=6

3y=18

y=6

9x -9(6)=-18

9x-54=-16

9x=36

x=4

The linear function represents c, the total cost, when x tickets are ordered is c=21.6x+5.50.

A linear function is a function that represents a straight line on the coordinate plane. The standard form of a linear function is y = mx + b.

Given that, tickets to a basketball game can be ordered online for a set price per ticket plus a $5.50 service fee.

The total cost in dollars for ordering 5 tickets is $108.00.

The cost of 1 ticket =108.00/5

=$21.6

Let c be the total cost of tickets.

So the cost of x tickets is

c=21.6x+5.50

Therefore, the linear function for the given situation is c=21.6x+5.50.

To learn more about the linear function visit:

https://brainly.com/question/17058347.

#SPJ1

Answer:

45 in 6 hours

Step-by-step explanation:

3 inches in 2 minutes

So every hour, it can do 90 inches (since we multiply 2 times 30, we have to multiply 3 times 30)

So next we need to find out how much it goes in 6 hours, so we take 6 x 90.  That gives us 540.  

Lastly, we take 540 and divide it by 12 (since there are 12 inches in a foot) and that gives us 45 feet in 6 hours.

Answer:

540 feet

Step-by-step explanation:

Convert hours to minutes - 6 * 60 = 360 minutes

3 inches in 2 minutes = 1.5 inches in 1 minute (I did this just to make the next steps easier)

Figure out the number of feet moved in 6 hours - 1.5 * 360 = 540 feet

:)

Answer:

sin A = 12 /13

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin A = opp / hyp

sin A = 12 /13

The angle x in the diagram is 98 degrees.

When parallel lines are cut by a transversal line, angle relationships are formed such as corresponding angles, alternate interior angle, alternate exterior angles, vertically opposite angles, same side interior angles etc.

Therefore, let's find the angle of x using the angle relationships as follows:

The size of the angle x can be found as follows:

82 + x = 180(same side interior angles)

Same side interior angles are supplementary.

Hence,

82 + x = 180

x = 180 - 82

x = 98 degrees

learn more on angles here: brainly.com/question/24195209

#SPJ1

Answer:

United States:34

Canada:17

Answer:

17 and 34

Step-by-step explanation:

the United States earned 34, while the Canada earned 17

Answer:

8.5

Step-by-step explanation:

15x+10+6x+2=180 (add up to we 180 because they are alternate eachother

21x+12=180 combine like terms

21x=178 subtract 12 from both sides

x~~8.5 divide both sides by 21

A unit of measurement which is equal to one thousands meters is known as one kilometers.

Therefore, the given units of measurement equal to one thousand meters is called one - kilometers.

Learn more about units here

brainly.com/question/10433377

#SPJ4

Answer:

See below.

Step-by-step explanation:

We have the expression:

\(\sqrt{8c+4}\)

And we want to determine the domain restrictions of the expression.

Remember that the radicand (expression under the square root) must always be positive or 0. This is because we can't take the square root of a negative (and the square root of 0 is just 0). So, to find the domain restrictions, we can write and solve for the following inequality:

\(8c+4\geq0\)

This is saying (8c+4) must be greater than or equal to 0. In other words, it's positive or 0.

So, solve for c. Subtract 4 from both sides:

\(8c\geq-4\)

Now, divide both sides by 8. This yields:

\(c\geq4/8\\c\geq -1/2\)

So, our c must be greater than or equal to -1/2. If it is less than -1/2, we won't have a solution.

\( \fbox{(2,5)}\)

Hello, substitute all the given coordinates & see if RHS match with LHS

given equation,

y = 4x-3

First coordinate,

(x,y) = (2,5)

5= 4×2-3

5=5

Hence, first solution satisfies the given equation,

let's solve for rest other cordinates,

second coordinate,

(x,y) = (5,5)

5= 4×5-3

5 ≠ 17

does not satisfy,

third coordinate,

(x,y) = (4,5)

5= 4×4-3

5 ≠ 13

does not satisfy,

fourth coordinate,

(x,y) = (4,5)

5 = 4×3-3

5 ≠ 9

does not satisfy.

Hence the correct answer is (2,5)

\( \sf \small Thanks \: for \: joining \: brainly \: community! \)

Answer:

7 busses

Step-by-step explanation:

The student's error is that the common ratio would not be equal to 3/2.

What is Common Ratio:

The general form of representing a geometric progression is a1, (a1r), (a1r2), (a1r3), (a1r4) ,... where a1 is the first term of GP, a1r is the second term of GP, and r is the common ratio.

Common Ratio Formula:

Common ratio,

r =a n / a n−1

where,

an  is the nth term of the geometric progression.

an−1 is the (n - 1)t h term of the geometric progression.

Now,

\(S_{infinity} = 2a_{1} \\\\= a_{1} / 1-r\\\\2a_{1} = a_{1} / 1-r\\\\= 1-r = 1/ 2\\\\r = 1/2 - 1\\\\r = 1/2\)

To know more about "Common Ratio"

Refer this link:

https://brainly.com/question/1509142

#SPJ4

Answer:

It's B, and the last one

Step-by-step explanation:

because 20% of omnivores like to exercise as opposed to the 14% of vegetarians.

Also about 16% of everybody LIKES to exercise, meaning more than 80% DON'T like to exercise

Step-by-step explanation:

7=2 8=12 10=10 11=9

Answer:

√(4) is 2

√(100) is 10

√(144) is 12

√(81) is 9

=============================================

Explanation:

The dot plot indicates we have this data set: {20, 23, 25, 28}

Add up those values to get 20+23+25+28 = 96

Then divide by 4 since there are 4 values being added up here

96/4 = 24

So the arithmetic mean is 24.

Answer:

The Greatest Common Factor (GCF) for 28 and 63, notation CGF(28,63), is 7.

Step-by-step explanation:

The factors of 28 are 1,2,4,7,14,28;

The factors of 63 are 1,3,7,9,21,63.

So, as we can see, the Greatest Common Factor or Divisor is 7, because it is the greatest number that divides evenly into all of them.

Brainlist maybe? :)

Answer: angle A is none of those

Step-by-step explanation:

the sum of all angles in a triangle = 180

one of the triangles is 90

we can form an equation:

90 + (x+69) + (x+39) = 180

90 + 2x + 108 = 180

198 + 2x = 180

2x = 180 - 198

2x = -18

x = - 9

angle A = x+39

substitute x = -9

angle A = -9 + 39 = 30

so angle A is none of those

Answer:

x=6

Step-by-step explanation:

3(6)-5=13

18-5=13

13=13

Answer:

6

Step-by-step explanation:

3x - 5 =13

3x =15 +3

3x =18

x=18 :3

x=6

(a) The GPA for those with verbal SAT scores of 600 is: 3.097

(b) The slope of 0.00362 represents the average change in the college GPA that is associated with a one-unit increase in the verbal SAT score

a. Estimate the average GPA for those with verbal SAT scores of 600.

The regression line relating verbal SAT scores and college GPA for the data exhibited in Figure 3.12 is y = 0.275 + 0.00362x.

The GPA for those with verbal SAT scores of 600 is:

y = 0.275 + 0.00362(600)

= 3.097

b. Explain what the slope of 0.00362 represents in terms of the relationship between GPA and SAT.

The slope of 0.00362 represents the average change in the college GPA that is associated with a one-unit increase in the verbal SAT score

Know more about SAT scores here:

https://brainly.com/question/16844356

#SPJ11

Answer:

The answer is B

Step-by-step explanation:

the ans has to be 36 or more. so A and D can't B the answer. amongst B and C the lowest possible value is B - 36. so 36 is the answer