36 is 144% of what? Help me I neeed help super hard will give points

Answer:

23/100

Step-by-step explanation:

The probability that the mean lifetime of 25 randomly selected tires of this type will exceed than 42,000 miles is 25.14.

To break this problem, we need to use the standard normal distribution, assuming that the distribution of tire continuances is roughly normal. We can regularize the value of 42,000 using the formula

z = ( x- μ)/ σ

where x is the value of interest( 42,000 long hauls), μ is the mean tire continuance( 40,000 long hauls), and σ is the standard deviation( 3,000 miles). Plugging in the values, we get

z = ( 42,000- 40,000)/ 3,000 = 0.67

Using a standard normal distribution table or calculator, we can find the probability that an aimlessly named tire will last further than 42,000 long miles by looking up the area to the right of z = 0.67 under the standard average wind. This probability is roughly 25.14.

thus, the probability that a tire named arbitrarily from this brand will last more than 42,000 miles is roughly 25.14.

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The correct question is given below-

A particular brand of tires lasts an average of 40,000 miles with a standard deviation of 3,000 miles. What is the probability a tire selected at random lasts more than 42,000 miles?

In grade 7, students will encounter mixed fraction addition, subtraction, multiplication, and division word problems.

When adding or subtracting mixed fractions, follow these steps:

Convert the mixed fractions into improper fractions.

Find a common denominator for the fractions involved.

Perform the addition or subtraction operation on the numerators, while keeping the common denominator.

Simplify the resulting fraction, if possible, by reducing it to its simplest form or converting it back to a mixed fraction.

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A n s w e r:

\(-\frac{5y}{3} +\frac{5}{2}\)

The simplification of the given expression 5/6 (-2y + 3) is -1.7y + 2.5.

A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.

An expression is a mathematical proof of the equality of two mathematical expressions.

Given the expression,

⇒  5/6 (-2y + 3)

⇒ 5/6(-2y) + 5/6(3)

⇒ -2 × 5/6 y + 3 × 5/6

⇒ -5/3 y + 5/2

⇒ -1.7y + 2.5

Hence "The simplification of the given expression 5/6 (-2y + 3) is -1.7y + 2.5".

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Using permutation and combination there are 341,055 different random samples of four accounts that can be drawn from a population of 55 bank accounts without replacement.

The number of different random samples of size n that can be drawn from a population of size N without replacement is given by the formula for the combination:

C(N,n) = N! / (n! × (N-n)!)

where N! is the factorial of N, n! is the factorial of n, and (N-n)! is the factorial of (N-n).

In this case, we have a population of size N = 55 bank accounts, and we want to take a random sample of size n = 4 accounts. Using the formula for the combination, we have:

C(55,4) = 55! / (4! × (55-4)!)

C(55,4) = 55! / (4! × 51!)

C(55,4) = (55545352) / (4321)

C(55,4) = 341,055

Therefore, there are 341,055 different random samples of four accounts that can be drawn from a population of 55 bank accounts without replacement.

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The question is -

Simple random sampling uses a sample of size n from a population of size N to obtain data that can be used to make inferences about the characteristics of a population. Suppose that, from a population of 55 bank accounts, we want to take a random sample of four accounts to learn about the population. How many different random samples of four accounts are possible?

Answer:

I think the answer would be C

Step-by-step explanation:

Answer:

2x+2

Step-by-step explanation:

The first odd integer is x

The second odd integer is x+2

The sum

x+ x+2

2x+2

On average, a customer spends approximately 1.16 minutes waiting time on hold before they can start speaking to a representative.

To find the average waiting time for a customer on hold before they can start speaking to a representative, we need to consider both the arrival rate of calls and the average service time of the staff members.

Given:

9 staff members taking calls.

On average, one call arrives every 5 minutes (standard deviation of 5 minutes).

Each staff member spends on average 18 minutes with each customer (with a standard deviation of 27 minutes).

To calculate the average waiting time, we need to use queuing theory, specifically the M/M/c queuing model. In this model:

"M" stands for Markovian or memoryless arrival and service times.

"c" represents the number of servers.

In our case, we have an M/M/9 queuing model since we have 9 staff members.

The average waiting time for a customer on hold is given by the following formula:

Waiting time = (1 / (c * (μ - λ))) * (ρ / (1 - ρ))

Where:

c = number of servers (staff members) = 9

μ = average service rate (1 / average service time)

λ = average arrival rate (1 / average interarrival time)

ρ = λ / (c * μ)

First, let's calculate the average arrival rate (λ):

λ = 1 / (average interarrival time) = 1 / 5 minutes = 0.2 calls per minute

Next, calculate the average service rate (μ):

μ = 1 / (average service time) = 1 / 18 minutes = 0.0556 customers per minute

Now, calculate ρ:

ρ = λ / (c * μ) = 0.2 / (9 * 0.0556) ≈ 0.407

Finally, calculate the waiting time:

Waiting time = (1 / (c * (μ - λ))) * (ρ / (1 - ρ))

= (1 / (9 * (0.0556 - 0.2))) * (0.407 / (1 - 0.407))

≈ 1.16 minutes

Therefore, on average, a customer spends approximately 1.16 minutes waiting on hold before they can start speaking to a representative.

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The respective differences are 1. 09 x 10^(-3); 2. 56.077 ; b. 6.645

This problem involves decimal subtraction. We subtract them by simultaneously writing the whole part and decimal part one under the other.

So, here 0.017 - 0.008 can be written as -

  0.017

-0.008

--------------

0.009

Here, in the thousandth position, 7 becomes 17 by carrying 1 from the left number 1 and 17 minus 8 = 9.

SO, we are left with 9 in the thousandth position.

Now, in the hundredth position, 1 was carried to 7 to make it 17, we are left with 0 So, 0-0 = 0 . This follow in all positions.

Hence , 0.017- 0.008 gives us 0.009 .

In the standard form 0.009 can be written as 9 x 10^(-3)  as 3 is three times away and to the right of the decimal point and '-' means its in the decimal part.

In the 2. part, we have

 84.637

-28.560

-------------

56.077

Here , the decimal parts in both the numbers are not equal. In 84.637 , we have three decimal places and in 28.56 , we have two decimal places. Now, whenever we have this kind of a situation , we make decimal parts equal by adding a 0 . So, 28.56 becomes 28.560

Now, again following the same procedure as above , 7-0=7 , 13-6=7, 5-5=0 and for whole number part, 1-8=6 and 7-2 = 5.

Here 13 and 14 are formed from 3 and 4 by carrying a one and 8 becomes 7 by giving a come to 4.

For b. part, since 7 has no decimal part while 0.355 has three decimal parts. SO, we write 7 as 7.000 to make the no. of  decimal parts equal.

So,  we get

 7.000

-0.355

------------

6.645

Here , 0 becomes 10 by carrying 1 from 0. so, 10-5=5 . Now the second zero becomes 9 as it has given 1 to the next 0. So, 9-5=4. Similarly 9-3=6.

Now, 7 becomes 6 and 6-0=6.

So, we are left with 6.645.

Hence, the differences are1. 09 x 10^(-3); 2. 56.077 ; b. 6.645.

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The statement is false. In the equation log(55) + log(y) = log(z), we can rewrite it using the logarithmic property of addition as log(55y) = log(z). However, we cannot directly conclude that 55y = z.

The reason is that logarithmic functions are not one-to-one functions. This means that different inputs can produce the same output when applying a logarithmic function. In this case, the equation log(55y) = log(z) only tells us that the logarithm of 55y is equal to the logarithm of z, but it does not imply that 55y is equal to z.

To determine the relationship between 55y and z, we would need more information or additional equations. Without further information, we cannot conclude that 55y = z based solely on the given equation.

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The events A and B are not mutually exclusive; not mutually exclusive (option b).

Explanation:

1st Part: Two events are mutually exclusive if they cannot occur at the same time. In contrast, events are not mutually exclusive if they can occur simultaneously.

2nd Part:

Event A consists of rolling a sum of 8 or rolling a sum that is an even number with a pair of six-sided dice. There are multiple outcomes that satisfy this event, such as (2, 6), (3, 5), (4, 4), (5, 3), and (6, 2). Notice that (4, 4) is an outcome that satisfies both conditions, as it represents rolling a sum of 8 and rolling a sum that is an even number. Therefore, Event A allows for the possibility of outcomes that satisfy both conditions simultaneously.

Event B involves drawing a 3 or drawing an even card from a standard deck of 52 playing cards. There are multiple outcomes that satisfy this event as well. For example, drawing the 3 of hearts satisfies the first condition, while drawing any of the even-numbered cards (2, 4, 6, 8, 10, Jack, Queen, King) satisfies the second condition. It is possible to draw a card that satisfies both conditions, such as the 2 of hearts. Therefore, Event B also allows for the possibility of outcomes that satisfy both conditions simultaneously.

Since both Event A and Event B have outcomes that can satisfy both conditions simultaneously, they are not mutually exclusive. Additionally, since they both have outcomes that satisfy their respective conditions individually, they are also not mutually exclusive in that regard. Therefore, the correct answer is option b: not mutually exclusive; not mutually exclusive.

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Answer:

65

Step-by-step explanation:because

Answer:\(22.62^{\circ},1.2\ \text{miles}\)

Step-by-step explanation:

Given

Jeremy takes road and ride 3.6 miles to the east and then 1.5 miles to the north

If there is a path that goes through the woods directly from Jeremy's house to Khaleel's house with length x(say)

From the figure, we can write the angle between road and the path

\(\Rightarrow \tan \theta=\dfrac{1.5}{3.6}\\\\\Rightarrow \tan \theta=0.4167\\\Rightarrow \theta=22.62^{\circ}\)

(b)Length of the path is

\(\Rightarrow x=\sqrt{3.6^2+1.5^2}\\\Rightarrow x=\sqrt{15.21}\\\Rightarrow x=3.9\ miles\)

Distance covered by the road is \(3.6+1.5=5.1\ miles\)

Difference between the two lengths is

\(\Rightarrow 5.1-3.9=1.2\ \text{miles}\)

Answer:

-6x+2y=-18 = \(y = -9 + 3x\)

-3x-2y=54 = \(y = -27 - \frac{3x}{2}\)

Step-by-step explanation:

I hope I understood this correctly.

Answer:

Length = 6.49 cm

Step-by-step explanation:

The formula for area of a rectangle is

A = lw, where

Since we're already given the area and width and want to find the length, we can first rewrite the area formula in terms of l:

A/w = l

Now, we can plug in 25.311 for A and 3.9 for w to solve for l, the length:

25.311 / 3.9 = l

6.49 cm = l

We can check that 6.49 is the correct length by plugging everything into the regular area formula and checking that we get 25.311:

25.311 = 6.49 * 3.9

25.311 = 25.311

Answer:

35 mph

Step-by-step explanation:

The answer should be the average speed it takes to drive, so you would find the average of the speed to go to A with the speed to go to B. You already have the two answers for part A and B, so you would add them, then divide them by 2. It would look like this:

\(\frac{30+40}{2} =\frac{70}{2} =35\)

So it would be 35 mph

Answer:

58 (you were correct)

Step-by-step explanation:

y + 16 = 74

To solve this you simply subtract by 16 on both sides.

y = 74 - 16

y = 58

You were right before, 58 is definitely 100% the correct answer.

A mathematical description of hexagon is given above.

In geometry, a polygon is a plane figure that is described by a finite number of straight line segments connected to form a closed polygonal chain.

The bounded plane region, the bounding circuit, or the two together, may be called a polygon.

The segments of a polygonal circuit are called its edges or sides.

Given is hexagon.

In geometry, a hexagon is a six-sided polygon creating the outline of a cube. The total of the internal angles of any simple (non-self-intersecting) hexagon is 720°.

A regular hexagon is defined as a hexagon that is both equilateral and equiangular. It is bicentric, meaning that it is both cyclic (has a circumscribed circle) and tangential (has an inscribed circle).

Therefore, a mathematical description of hexagon is given above.

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Answer: D

Step-by-step explanation:

If the leading coefficient is negative, then as \(x \to \infty\), \(f(x) \to -\infty\).

If the leading coefficient is negative, then as \(x \to -\infty\), \(f(x) \to \infty\).

This leaves D as the correct answer.

After the 6-for-1 stock split, the stock price will be $16.41 per share, assuming no market imperfections or tax effects.

A stock split is a process in which a company increases the number of shares outstanding while proportionally reducing the price per share. In this case, the company plans a 6-for-1 stock split, which means that for every existing share, shareholders will receive six new shares.

To determine the post-split stock price, we divide the original stock price by the split ratio. The original stock price is $98.48, and the split ratio is 6-for-1. Therefore, we calculate:

$98.48 / 6 = $16.41

Hence, after the 6-for-1 stock split, the stock price will be $16.41 per share. This means that each shareholder will now hold six times more shares, but the value of their investment remains the same.

It is important to note that in practice, market imperfections, investor sentiment, and other factors can influence the stock price after a split. However, assuming no market imperfections or tax effects, the calculated value of $16.41 represents the theoretical post-split stock price.

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The factor of the polynomial is option (D) (2x+5)^2 is the correct answer.

In this question,

Factorization is the breaking or decomposition of an entity (i.e.,) a number, a matrix, or a polynomial into a product of another entity, or factors, which when multiplied together give the original number. Factorize an expression involves take out the greatest common factor (GCF) of all the terms.

The polynomial is \(4x^{2} +20x+25\)

The above polynomial can be factored as

⇒ \(4x^{2} +20x+25=0\)

⇒ \((2x)^{2}+2(2x)(5)+5^{2}\)

⇒ \((2x+5)^{2}\)

Hence we can conclude that the factor of the polynomial is option (D)(2x+5)^2 is the correct answer.

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Answer:

6.4

Step-by-step explanation:

Just plug in the distance formula.

(4+1)^2+(1-5)^2

(5)^2+(-4)^

25+16

41

(square root 41) and get 6.4

Answer:

Step-by-step explanation:

Given data:

Home price = $450,000

Down payment = 5%.

Mortgage time = 30 years.

Mortgage fixed rate = 7%.

Solution:

Down payments

= 5% x $450,000

= $22,500.

Amount to be financed

= Home price – down payment

= $450,000 – $22,500

= $427,500.

Monthly Mortgage payment

P* r * ( 1 + r ) ^n / [ ( 1 + r ) ^n ]

= $427,500 * 0.0058 * ( 1 + 0.0058 ) ^360 / [(1 + 0.0058 )^360 ]

= $2844.75

The sequence of natural numbers that leaves a remainder of 3 when divided by 10 is:

3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, ...

\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)

♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)

Reason: The line goes downhill when moving to the right, and when we're between x = -1 and x = 1. You can think of it like a roller coaster.

Answer:

Step-by-step explanation:

(a) and (b) see diagram

(c) you can see from the graph, the purple line hits the parabola twice which is y=6   or k=6

(d)  Solving simultaneously can mean to set equal

6x - x² = k                        >subtract k from both sides

6x - x² - k = 0                  >put in standard form

- x² + 6x - k = 0               >divide both sides by a -1

x² - 6x + k = 0

(e) The new equation is the same as the original equation just flipped (see image)

(f)  The discriminant is the part of the quadratic equation that is under the root. (not sure if they wanted the discriminant of new equation or orginal.  I chose new)

discriminant formula = b² - 4ac

equation:   x² - 6x + 6 = 0            a = 1      b=-6    c = 6

discriminant = b² - 4ac

discriminant= (-6)² - 4(1)(6)

discriminant = 36-24

discriminant = 12

Because the discriminant is positive, if you put it back in to the quadratic equation, you will get 2 real solutions.

Answer:

ok

Step-by-step explanation:

Answer/Step-by-step explanation:

Since you know that the answer is x = 36, Then you can substitute it in the equation.

3/4(36) - 11 = 16          → Multiply 3/4 by 36

27 - 11 = 16                  → Subtract 11 from 27

16 = 16                        → They are equal

Hence as you can see, x = 36.

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