Please help me with some conditional probabilities from tree diagrams. Due today

Answer:

-6 and 2

Step-by-step explanation:

See attached worksheet.

Answer:

1:7 , 2:14, 4:28, 8:56

Step-by-step explanation:

Ratios act just like fractions, because of this, you can simplify ratios just as you would simplify a fraction. In addition, because they asked for the ratio of boys to girls, we know that they want the (number of boys): (number of girls)

HOPE THIS HELPS!!!

Answer:

36 ft

Step-by-step explanation:

The ratio of the lengths of the sides is the same as the ratio of the perimeters.

Just like one side (15 ft) of triangle ABC is 3 times as long as the corresponding side (5 ft) of triangle DEF, the perimeter of triangle ABC is also 3 times the perimeter of triangle DEF.

15/5 = x/12

3 = x/12

x = 36

Answer: 36 ft

Answer: I would say 68 i believe this because if i do remember correctly you have to make it equal 192 and 68 did that.

Step-by-step explanation: Sorry if im wrong.

Self-confidence is an attitude about your skills and abilities. It means you accept and trust yourself and have a sense of control in your life. You know your strengths and weakness well, and have a positive view of yourself. You set realistic expectations and goals, communicate assertive

Answer:

there will only be one 3

Step-by-step explanation:

see cause the first 3 of both numbers are 2 but only the last one of both numbers are 3 .

Answer:

After investing for 10 years at 5% interest, your $2,000 investment will have grown to $3,258

Step-by-step explanation:

Your welcome

Answer:

D) $28,224.00

Step-by-step explanation:

1st hour: 480 ticket sales

2nd hour: 480 + 40% of 480 = 480 + 0.4 × 480 = 480 + 192 = 672

Total ticket sales in first 2 hours: 480 + 672 = 1152

Ticket price: $24.50

Total sales: 1152 × $24.50 = $28,224

Answer:

She will have $600 in the first five years

Step-by-step explanation:

6000 - 10% = 5400 so it takes 600 and 2% in each year = 10% every 5 years so it is 600

Answer:

4y-12

Step-by-step explanation:

ok in distributive propertie you multiply the number or term on the outside of the parenthesis with the terms in the inside in other words. 4 ×y and 4× 12

Answer:

4y-12

Step-by-step explanation:

I did something just like this

Answer:

Yea

Step-by-step explanation:

The current ages of the two brothers are A = 25 and B = 30.

To solve the problem, let's denote the current ages of the two brothers as A and B, where A is the older brother and B is the younger brother.

From the given information, we have three time points to consider: 20 years ago, the present, and 20 years from now. Let's analyze each of these time points:

20 years ago:

At this time point, the ratio of their ages was 1:2. This can be expressed as (A-20)/(B-20) = 1/2.

Present:

Currently, the ratio of their ages is 5:6. This can be expressed as A/B = 5/6.

20 years from now:

In the future, the ratio of their ages will be 9:10. This can be expressed as (A+20)/(B+20) = 9/10.

Now, we have three equations based on the given information. We can solve this system of equations to find the ages of the brothers.

Equation 1: (A-20)/(B-20) = 1/2

Equation 2: A/B = 5/6

Equation 3: (A+20)/(B+20) = 9/10

Solving this system of equations will yield the values of A and B, representing the current ages of the two brothers.

2(A-20) = B-20

2A - 40 = B - 20

2A - B = 20

Now, let's solve the system of equations using a method like substitution

From Equation 2, we have A/B = 5/6. We can rewrite it as A = (5/6)B.

Substituting this value of A into Equation 1:

2((5/6)B) - B = 20

(10/6)B - B = 20

(4/6)B = 20

(2/3)B = 20

B = (3/2) × 20

B = 30

Now, we can substitute the value of B back into Equation 2 to find A:

A/B = 5/6

A/30 = 5/6

A = (5/6) × 30

A = 25

Therefore, the current ages of the two brothers are A = 25 and B = 30.

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All options are true except option iii)

Given function is f(x) which is defined for all real numbers.

What is a critical point? A critical point of a function is a point where the derivative of the function equals zero or fails to exist. For a given function f(x), select the true statements:

i) If f(x) is continuous on (a,b), then f(x) attains an absolute maximum value f(c) and an absolute minimum value f(d) for some numbers c and d in (a,b).

ii) If f(x) has a critical point at x=c, then f'(c)=0.

iii) If f(x) has a local minimum value at x=c, then f'(c)=0.

iv) If f'(c)=0, then f(x) has a local maximum or minimum at x=c.

v) If f'(c) is undefined, then x=c is a critical point of f(x). From the above all options, all options are true except option iii). Option iii is incorrect because if f(x) has a local minimum or maximum value, then f'(c)=0 is not necessary. The necessary condition is f'(c)=0 but the converse is not true.

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Answer:

Step-by-step explanation:

x      - some integer

2x+1      - an odd integer (the smaller one)

2x+1+2=2x+3       - the next odd integer consecutive to 2x+1  (the larger)

2×(2x+1)       - twice the smaller number

2x+3+2•(2x+1)     -the sum of the larger number and twice the smaller number

4•(2x+1)      - four times the smaller number

4•(2x+1)-27     - 27 less then four times the smaller number

2x + 3 + 2•(2x + 1) = 4•(2x + 1) - 27

2x + 3 + 4x + 2 = 8x + 4 - 27

            6x + 5  =  8x - 23

                  -5            -5

              6x  =  8x - 28

             -8x       -8x

            -2x  =  - 28

          ÷(-2)      ÷(-2)

              x  = 14

2x+1 = 2•14 + 1 = 29

2x+3 = 2•14 + 3 = 31

Check:  31+2•29=31+58=89;  4•29-27=116-27=89

Answer:

the answer is C 7/4

Step-by-step explanation:

goes up 7 and over 4

No, the function f(x) = 35/(70-12.9) is not a probability density function on any interval, since it violates the non-negativity requirement of probability density functions.

A probability density function is a non-negative function that integrates to 1 over its defined interval. This means that the function must take non-negative values for all possible values of x, and its integral over the entire interval must equal 1.

In this case, the denominator (70-12.9) is equal to 57.1, which means that the value of the function f(x) is greater than 1 for any value of x. This violates the non-negativity requirement of probability density functions.

In conclusion, f(x) = 35/(70-12.9) is not a probability density function since it takes values greater than 1, violating the non-negativity requirement.

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Answer:

27 -3= 24

24 /6= 4

Tickets were $4 each

Step-by-step explanation:

It will take 4 hours for Ashley to clean the house alone.Answer: Ashley will take 4 hours to clean the house alone.

Given:Ashley and Rod cleaned the house in 4 hours. Rod can clean the house alone in 2 hours.To find:How long will it take for Ashley to clean the house alone?Solution:Let's suppose the time Ashley takes to clean the house alone is x hours.Then, Ashley and Rod can clean the house in 4 hours.Thus, using the concept of work, we have:\begin{aligned} \text { Work done by Ashley in 1 hour } + \text { Work done by Rod in 1 hour } &= \text { Work done by Ashley and Rod in 1 hour } \\ \Rightarrow \frac {1}{x} + \frac {1}{2} &= \frac {1}{4} \\ \Rightarrow \frac {2 + x}{2x} &= \frac {1}{4} \\ \Rightarrow 8 + 4x &= 2x \\ \Rightarrow 2x - 4x &= -8 \\ \Rightarrow x &= 4 \end{aligned}Therefore, it will take 4 hours for Ashley to clean the house alone.Answer: Ashley will take 4 hours to clean the house alone.

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Answer: A rectangle is a 2-dimensional and a cube is a 3-dimensional

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Somehting bknbye3uehnfhnjun Español uno, como sulfhídrica

7.0% is the maturity yield. It is computed by taking into account the present value of the bond's future cash flows, the face value, and the current market price.

A bond's yield to maturity is a measure of the expected return on investment. It takes into account the bond's face value as well as the current market price and future cash flows. In this case, the bond has a 10-year maturity period, a 3% coupon rate, annual payments, and a $1,000 face value. If it is currently trading at $901, the can be calculated. To begin, we must compute the present value of the bond's future cash flows, which include coupon and principal payments. The YTM is used in this case. The in this case is 7.0%, implying that an investor will earn a 7.0% return.

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Answer:

The answer to this is B, $135.

Step-by-step explanation:

I took the test.

Answer:

$135 is the correct answer, I took the test and got it right

Step-by-step explanation:

Answer:

black

black

Step-by-step explanation:

The number of units manufactured at a cost of $9,500 is approximately 141.75 units.

The sunglasses will hit the ground after 100 seconds

The rocket reaches a height of 96 feet at t = 2 seconds or t = 3 seconds.

The width of the floor is 6 feet, and the length is 9 feet.

Now we can use the quadratic formula:

x = (-b ± √(b² - 4ac)) / 2a

where a = 1, b = -15, and c = -9,450.

Plugging these values in:

x = (-(-15) ± √((-15)² - 4(1)(-9,450))) / 2(1)

x = (15 ± √(15 + 18,960)) / 2

x = (15 ± √19,185) / 2

x ≈ 141.75

In order to find when the sunglasses will hit the ground, we need to find the time t when h(t) = 0.

h(t) = -16t + 1600 = 0

Solving for t:

-16t = -1600

t = 100

Therefore, the sunglasses will hit the ground after 100 seconds.

h(t) = -16t² + 80t

96 = -16t² + 80t

0 = -16t² + 80t - 96

0 = -t² + 5t - 6

0 = (t - 2)(t - 3)

The rocket reaches a height of 96 feet at t = 2 seconds or t = 3 seconds.

2w² - 3w - 90 = 0

(2w + 15)(w - 6) = 0

If w - 6 = 0, then w = 6, which is a valid solution.

Therefore, the width of the floor is 6 feet, and the length is 2(6) - 3 = 9 feet.

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9514 1404 393

Answer:

Step-by-step explanation:

Let a, b, c represent the quantities of 20%, 35%, and 55% solutions, respectively. Then for the given mix, we have ...

  a + b + c = 108 . . . . . total number of liters

  .20a +.35b +.55c = 0.40·108 . . . . . liters of acid

  0a - 3b + c = 0 . . . . . 55% solution was 3 times 35% solution

__

Solving these three equations by your favorite method gives ...

  (a, b, c) = (36, 18, 54)

The chemist used 36 liters of 20%, 18 liters of 35%, and 54 liters of 55%.

_____

Comment on alternate approach

Since the ratio of 55% to 35% is 3 : 1, that mix will have an acid content of ...

  (3(.55) +1(.35))/4 = 0.50 = 50%

So, the final mix is equivalent to some quantity of 50% mix being added to some quantity of 20% mix. The fraction that is 50% mix* will be (40-20)/(50-20) = 2/3 of the total, or (2/3)(108 L) = 72 L.

Now we know that (1/3)(108 L) = 36 L of 20% solution is needed and (1/4)(72 L) = 18 L of 35% solution is needed. 3 times that is 54 L of 55% solution.

__

* After you work a few mixture problems, you can see the pattern. If we start with an equation for x = fraction of 50% to use with 20% to make 40%, we get ...

  x(50%) +(1 -x)(20%) = 40%

  x(50% -20%) = 40% -20% . . . . . subtract 1(20%) and factor out x

  x = (40% -20%)/(50% -20%)

The key here is to see where the numbers 20%, 40%, and 50% show up in the fraction.

A man wanted to investigate the linear relationship between how many miles he ran and his heart rate in beats per minute. After recording how many miles he ran and his heart rate for 12 different days, he created this 95% confidence interval for 3 miles (160,180). The twelve different days could be considered a random sample of all of his run days. The best interpretation of the confidence interval is Option a) It can be stated with 95% confidence that his average heart rate after running 3 miles is between 160 and 180 beats per minute.

Given that the 12 different days could be considered a random sample of all of his run days, the sample statistics of the study can be used to make inferences about the population parameters. Therefore, the 95% confidence interval for 3 miles of (160,180) can be interpreted as There is a 95% chance that the true population average heart rate after running 3 miles is between 160 and 180 beats per minute. Or It can be stated with 95% confidence that his average heart rate after running 3 miles is between 160 and 180 beats per minute.

Option a. It can be stated with 95% confidence that his average heart rate after running 3 miles is between 160 and 180 beats per minute is the best interpretation of the confidence interval.

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Answer:

Please find attached the required inverse of a function chart

Step-by-step explanation:

The inverse of a function is found by reversing the operations of the  function

The inverse of the function f(x) = 2·x - 4 is found as follows;

x = 2·x - 4

x + 4 = 2·x

x = (x + 4)/2 = x/2 + 2

Therefore, the inverse of the function f(x) = 2·x - 4 is f(x) = x/2 + 2

The inverse function is plotted by generating data points as follows;

\({}\)x         \({}\)          f(x)

0                2

1                  2.5

2                 3

3                  3.5

4                   4

5                   4.5

6                   5

7                   5.5

8                   6

9                   6.5

10                  7

11 \({}\)                   7.5

12\({}\)                    8

13                 8.5

14                  9

15                  9.5

16               10