I NEED HELP WITH THIS ANSWER ASAP!!!!!!

A sequence is defined by the formula U(subscript 1)=4/27, u(subscript n+1)=3 x u(subscript n), n>1.

A) Show the sequence is geometric and find the common ratio

The probability that there will be exactly 2 accidents during the next

two weeks is 0.9828.

A Poisson distribution in statistics is a probability distribution that is used to demonstrate how frequently an event is expected to happen over a certain period of time. It is a count distribution, to put it another way. In order to comprehend separate events that happen at a steady pace throughout the course of a certain period of time, Poisson distributions are frequently utilized.

Using the Poisson distribution:

2 weeks ⇒ λ = 6.

P( X ≥ 2 ) = 1 – [ P( X = 0 ) + P( X = 1 ) ] = \(1-[\frac{6^{0}*e^{-6} }{0!} + \frac{6^{1}*e^{-6} }{1!}]\)

                                                             = 1-[0.0024+0.0148] = 0.9828

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Answer:

4

Step-by-step explanation

Im sure its four. If not let me know

Answer:

31

Step-by-step explanation:

63+86=149

180-149=31

(180 because all angles in a triangle added together have to equal 180)

True. The correlation coefficient (r) must also be positive, indicating a strong positive linear relationship between the two variables.

The correlation coefficient (r) measures the strength and direction of the linear relationship between two variables. It ranges from -1 to 1, where a value of -1 indicates a perfectly negative linear relationship, a value of 1 indicates a perfectly positive linear relationship, and a value of 0 indicates no linear relationship.  If the slope (b) of ŷ is positive, it means that as the independent variable increases, the dependent variable also increases.

In addition to the above explanation, it is important to note that while a positive slope (b) of ŷ indicates a positive linear relationship between two variables, it does not necessarily mean that the correlation coefficient (r) will always be positive. For example, if there is a weak positive linear relationship between two variables, the correlation coefficient (r) may still be positive but not as strong as if there was a strong positive linear relationship. Similarly, there may be situations where the correlation coefficient (r) is positive but the slope (b) of ŷ is not positive, such as in a curvilinear relationship where the relationship between the two variables is not linear.

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Answer:

13

A(-1, -6), B(-1,7)

7-(-6)=13

Answer:

13

Step-by-step explanation:

Answer:

He would get $1.76 in change

Step-by-step explanation:

For the coffee, you can subtract $1.39 from $5.00

$5.00 - $1.39 = $3.61

Then for the bagel, you need to subtract 1.85 from your answer to the old equation

$3.61 - $1.85 = $1.76

So $1.76 is your answer.

Scores range from 80 to 99, with scores exceeding 99 and scores falling below 60 points.

In the given range of scores, which spans from 80 to 99, it encompasses a range of values that are considered satisfactory and relatively high. These scores reflect a level of achievement or performance within a specific context, such as academic grading or test results. Additionally, it is important to note that there are scores that exceed 99, indicating exceptional performance or outstanding results. On the other hand, there are also scores below 60, which indicate lower levels of achievement or performance. These scores may require further attention or improvement in order to reach a more desirable outcome. The varying range of scores allows for a comprehensive evaluation of individuals or entities based on their performance, highlighting both strengths and areas that may need improvement.

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a) The proportional relationship for the similar triangles in this problem is given as follows:

h/6 = 50/13.

b) The height of the tower is given as follows: h = 23.1 m.

Two triangles are defined as similar triangles when they share these two features listed as follows:

The similar triangles for this problem are given as follows:

CAB and EDB.

Hence the proportional relationship for the side lengths is given as follows:

h/6 = 50/13.

Applying cross multiplication, the height of the tower is obtained as follows:

h = 6 x 50/13

h = 23.1 m.

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The probability that Marcus has to make the new dish exactly 15 times before it goes on the menu is approximately 0.053. The probability that the investor will double his investment is approximately 0.315.

To find the probability that Marcus has to make the new dish exactly 15 times before it goes on the menu, we need to calculate the probability of exactly 10 successes (perfect executions) out of the first 14 attempts and then the probability of a success on the 15th attempt. Each attempt has an 80% chance of success.

Using the binomial probability formula, the probability of exactly k successes in n attempts, with a success probability p, is given by:

\(P(X = k) = (n choose k) * (p^k) * ((1 - p)^(n - k))\)

In this case, we want to calculate\(P(X = 10) * P(X = 1) = (14 choose 10) * (0.8^10) * (0.2^4) * (0.8^1) = 0.0577 * 0.00016 ≈ 0.0092.\)

Therefore, the probability that Marcus has to make the new dish exactly 15 times before it goes on the menu is approximately 0.0092 or 0.92%.

To calculate the probability that the investor will double his investment, we need to consider the scenario where Marcus attempts the recipe once per day until the meeting. Since he has 6 days left and he has already executed the recipe 5 times successfully, he has 1 remaining attempt.

The probability of a success on the last attempt is 0.8, and the probability of failure is 0.2. Therefore, the probability that the investor will double his investment is P(X = 1) = 0.8.

Hence, the probability that the investor will double his investment is approximately 0.8 or 80%.

The binomial probability formula is used to calculate the probability of obtaining a certain number of successes in a fixed number of independent Bernoulli trials. In this case, Marcus's attempts to execute the recipe can be modeled as a binomial distribution since each attempt has a fixed probability of success (80%) and the attempts are independent. By applying the formula, we can determine the probabilities associated with the number of successes and make informed decisions based on those probabilities.

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Answer:

Step-by-step explanation:

C=2*3.14*r

we have the diameter d=2*r=8.3m

C=8.3*3.14=26.06 m

Answer:

38

Step-by-step explanation:

:) hope this helps

Answer:

5+9=9+5

Step-by-step explanation:

Because ethier way it will be 14, but idl dont take my word yet...

Answer:

The answer is C

Step-by-step explanation:

21+21=42

The rate of change of angle of elevation between the radar station and airplane is

                       \(\displaystyle \frac{-10}{109} \left(\frac{rad}{min}\right)\)

The airplane is flying at the speed of 200 mph

The airplane is at an altitude of 3 miles over the radar station

The distance travelled by the airplane after 3 mins

      distance = speed x time

                     = 200 mi/hr x 3 min

Since the speed is hour let us convert it to mins

                     = 200 x 3 x 1/60

                     = 600 / 60

                    = 10 miles

So , let us assume that the airplane is exactly at the top of the radar station at an altitude of 3 miles

Then the elevation angle of the between radar station and airplane can be find by

                              tan θ = O / A
where O is the opposite side to the angle of elevation

          A is the adjacent side to the angle of elevation.

But we need the find the rate of change of angle of elevation , so let us differentiate on both side with respect to time

                                \(\displaystyle sec^{2}\theta\frac{ d\theta }{dt} = \frac{A \frac{dO}{dt} - O \frac{dA}{dt} }{A^{2}}\)

                                        \(\displaystyle \frac{ d\theta }{dt} = \frac{A \frac{dO}{dt} - O \frac{dA}{dt} }{sec^{2}\theta A^{2}}\)

                                       \(\displaystyle \frac{d\theta}{dt} = \frac{10 (0) - 3 (200 mi/hr)}{sec^{2}(10)^{2}}\)

The altitude is gonna be a constant , thus the derivative of altitude will be zero whereas , the the distance travelled by airplane is changing with respect to time.

                                   \(\displaystyle \frac{d\theta}{dt} = \frac{10 (0) - 3 (200 mi/hr)}{\frac{109}{100}(10)^{2}}\)

We had found the value of sec²θ = (hyp/adj)²

                                    \(\displaystyle \frac{d\theta}{dt} = \frac{-600}{109} \frac{rad}{hr}\)

Now , let us convert in terms of rad/min

                                   \(\displaystyle \frac{d\theta}{dt} = \frac{-600}{109} \left(\frac{1}{60}\right)\)

                                  \(\displaystyle \frac{d\theta}{dt} = \frac{-10}{109} \left(\frac{rad}{min}\right)\)    

Therefore , the rate of change of angle of elevation is -10/109 (rad/min)    

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Answer:

complementary

b = 45 deg

Step-by-step explanation:

Angles b and 45-deg are complementary since their measures ad to 90 deg.

45 + b = 90

b = 45

Answer:

Complementary

45°

Step-by-step explanation:

b + 45° = 90°

b = 90° - 45°

b = 45°

Answer:

x=4,y=3

Step-by-step explanation:

x=19-5y if we transpose equation 2 for x.

Plug that into equation 1

4(19-5y)+3y=25

76-20y+3y=25

76-25=17y

51=17y

y=3

Plug y=3 into equation 2

x+5(3)=19

x=19-15=4

We are having two equations,

★ From Equation No 2 :-

>> x + 5y = 19

>> x = 19 - 5y

★ From Equation No 1 :-

Substitute here the value of x which we got above as (19 - 5y).

>> 4x + 3y = 25

>> 4 (19 - 5y) + 3y = 25

>> 4 × (19 - 5y) + 3y = 25

>> 76 - 20y + 3y = 25

>> 76 - 17y = 25

>> -17y = 25 - 76

>> -17y = -51

>> 17y = 51

>> y = 51 / 17

>> y = 3

★ Finding out value of x :-

>> x = 19 - 5y

>> x = 19 - 5(3)

>> x = 19 - 5 × (3)

>> x = 19 - 15

>> x = 4

Answer: I’m pretty sure they are similar because they have the same interior degree.

Step-by-step explanation:

Car A: 3x + 6

Car B: 4x+8

Step-by-step explanation:

total: 7 (x+2)

To find the number of elements in the Cartesian product A x B and B x A, we need to multiply the number of elements in set A by the number of elements in set B.

Given that n(A) = 46 (the number of elements in set A) and n(B) = 7 (the number of elements in set B), we can calculate: n(A x B) = n(A) * n(B) = 46 * 7 = 322.  Therefore, the number of elements in the Cartesian product A x B is 322. Similarly, to find n(B x A), we need to multiply the number of elements in set B by the number of elements in set A: n(B x A) = n(B) * n(A) = 7 * 46 = 322

Thus, the number of elements in the Cartesian product B x A is also 322.

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Answer:

Step-by-step explanation:

the equatoin is 4x+77=497

and x is the hours spent

so solving it you subtract 77 from 497 which is 420 and 420/4 is equal to 105

Okay, here we have this:

Considering the provided function, we are going to calculate the requested roots, so we obtain the following:

Finally we obtain that the roots of the function are x=8 and x=4.

The equation represented by the table in the right is y = 4x - 3

An equation is used to show the relationship between two or more numbers and variables.

The equation of a linear is given as:

y = mx + b

Where m is the rate of  change and b is the initial value

The table have the pairs (0, -3), (1, 1), (2, 5) and (3, 9).

Using the point (0, -3) and (1, 1):

y - (-3) = [(1 - (-3))/(1 - 0)](x - 0)

y + 3 = 4x

y = 4x - 3

The equation is y = 4x - 3

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The pitch of the roof is 0.3.

Pitch:

The pitch can be expressed numerically as a fraction. The pitch fraction represents a certain amount of vertical rise over the entire span.

Here it is given that the rise in the roof is 3.6m and a rum of 12m,

We have to find the pitch of the roof.

As is already given in the statement that the slope of a roof is called its pitch.

By this we get the slope:

Slope = 3.6/12

= 3/10

= 0.3

Therefore we get the pitch of the roof at 0.3.

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Answer:

\(8>3\)

Step-by-step explanation:

STEP 1: Rewrite so   n is on the left side of the inequality.

\(6n+8-2n>4n+3\)

STEP 2: Subtract  2 n  from  6 n .

\(4n+8>4n+3\)

STEP 3: Move all terms containing  n  to the left side of the inequality.

\(8>3\)

If one of the zeros in the quadratic polynomial is 4, then the value of k is 3.

A polynomial is a mathematical expression made up of coefficients and indeterminates that uses only the operations addition, subtraction, multiplication, and powers of positive integers of the variables. x2 4x + 7 is an illustration of a polynomial with a single indeterminate x. A polynomial is a mathematical expression that only uses the operations addition, subtraction, multiplication, and non-negative integer exponentiation of variables. Variables are also known as indeterminates in mathematics.

Here,

4 is a root/zero of polynomial

P(x)  =   (k-2) x²  - 2 x  - (k+5)

P(4) = 0

(k - 2) 4²  - 2 * 4 - (k+5)  = 0

15 k - 45 = 0  

k = 3

The value of k if 4 is one of the zeros of the quadratic polynomial is 3.

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Complete question:

If one of the zeros of a quadratic polynomial(k-2)x^2-2x-(k+5) is 4 , find value of k.

Answer:

NM = 15

Step-by-step explanation:

There is a property of secants and tangents to a circle where:

The square of the tangent length is equal the length of the external segment of the secant times the whole secant length.

Therefore, in our question, we have that:

\(NM^2 = ML * MK\)

The values of NM, ML and MK are:

\(NM = x + 3\)

\(ML = x - 3\)

\(MK = ML + LK = x - 3 + 16 = x + 13\)

So we have:

\((x+3)^2 = (x - 3)(x + 13)\)

\(x^2 + 6x + 9 = x^2 + 10x - 39\)

\(6x + 9 = 10x - 39\)

\(4x = 48\)

\(x = 12\)

So the length of NM is:

\(NM = x + 3 = 12 + 3 = 15\)

Answer:

C) neither

Step-by-step explanation:

they add up to 190

complementary adds up to 90

supplementary adds up to 180

Answer:

supplementary

Step-by-step explanation:

sum = 180

The probability tree diagram is

The first roll has (0.85, 0.15).

Second Roll has (0.85, 0.85, 0.15, 0.15).

What is the probability?

The probability of an event is a number that indicates how likely the event is to occur. It is expressed as a number in the range from 0 and 1, or, using percentage notation, in the range from 0% to 100%. The more likely it is that the event will occur, the higher its probability

Here, we have

Given: the probability of rolling a 1 on a 6-sided biased dice is 0.85

Now, the probability of not rolling 1

= 1 - 0.85

= 0.15

Hence, the First roll has (0.85, 0.15).

and, the Second Roll has (0.85, 0.85, 0.15, 0.15).

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