i need help with thissssss​

To find the probability that a randomly selected film is between 100 and 120 minutes long, we can use the properties of the normal distribution.

First, we calculate the z-scores for the lower and upper bounds of the desired range:

Lower z-score = (100 - 96) / 12 = 0.333

Upper z-score = (120 - 96) / 12 = 2.000

Next, we look up the probabilities associated with these z-scores in the standard normal distribution table. The probability for the lower bound is P(Z < 0.333) and the probability for the upper bound is P(Z < 2.000).

Using the table or a statistical calculator, we find that the probability for the lower bound is approximately 0.6293 and the probability for the upper bound is approximately 0.9772. To find the probability within the desired range, we subtract the lower probability from the upper probability:

P(100 < X < 120) = P(Z < 2.000) - P(Z < 0.333) = 0.9772 - 0.6293 = 0.3479

Therefore, the probability that a randomly selected film is between 100 and 120 minutes long is approximately 0.3479, or 34.79%.

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Answer:

156.25

Step-by-step explanation:

8x2 (2 years) = 16. 2500 / 16 = 156.25

a) The forecast is approximately miles. b) the Mean Absolute Deviation (MAD) based on the forecast is approximately miles. c) The forecast for year 6 is approximately miles. d) the last forecast is 3,468 miles.

a) To calculate the forecast for year 6 using a 2-year moving average, we take the average of the mileage for years 5 and 4. This provides us with the forecasted value for year 6.

b) The Mean Absolute Deviation (MAD) for the 2-year moving average forecast is calculated by taking the absolute difference between the actual mileage for year 6 and the forecasted value and then finding the average of these differences.

c) When using a weighted 2-year moving average, we assign weights to the most recent and previous periods. The forecast for year 6 is calculated by multiplying the mileage for year 5 by 0.40 and the mileage for year 4 by 0.60, and summing these weighted values.

The MAD for the weighted 2-year moving average forecast is calculated in the same way as in part b, by taking the absolute difference between the actual mileage for year 6 and the weighted forecasted value and finding the average of these differences.

d) Exponential smoothing involves assigning a weight (α) to the most recent forecasted value and adjusting it with the previous actual value. The forecast for year 6 is calculated by adding α times the difference between the actual mileage for year 5 and the previous forecasted value, to the previous forecasted value.

In this case, with α=0.20 and a forecast of 3,100 miles for year 1, we perform this exponential smoothing calculation iteratively for each year until we reach year 6, resulting in the forecasted value of approximately 3,468 miles.

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The given Il Shipping Table indicates that the shipping cost is $9.99 for a customer's order of $50 or $40, and $12.99 for orders less than or equal to $40, but it does not specify free shipping for a $1000 order or decreasing shipping costs for orders exceeding $500.

The following statements are true based on the given Il Shipping Table:

Shipping cost is 9.99 if customer's order is $50.

Shipping cost is 9.99 if customer's order is $40.

Shipping cost is 12.99 if customer's order is less than or equal to $40.

The statement "Free shipping if the customer's order is $1000" is not true based on the given information. There is no specific entry for a customer's order of $1000 in the Il Shipping Table, so we cannot determine the shipping cost for that order.

The statement "By spending more than $500, the customer saves on shipping cost by paying the least" is also not true. The Il Shipping Table does not indicate that the shipping cost decreases as the order amount increases beyond $500.

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Answer:

23

Step-by-step explanation:

x=3  PEMDAS says that exponents go first so 3x3=9  then 2x9=18+5=23

Answer:

okay bro, but I need some time

Answer:

72

Step-by-step explanation:

.75x96=72

The Risk Matrix lists the relative probability of a risk occurring and the relative impact of the risk occurring.

The Risk Matrix is a tool commonly used in risk management to assess and prioritize risks based on their likelihood of occurrence and potential impact.

It typically consists of a two-dimensional grid, with one axis representing the likelihood of the risk occurring, and the other axis representing the potential impact of the risk.

Each cell in the grid represents a specific level of risk, and is typically color-coded or labeled to indicate the severity of the risk. By using a Risk Matrix.

Organizations can prioritize their risk management efforts by focusing on the risks that are most likely to occur and have the greatest potential impact.

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The solution of x in the equation 6x - 5y = 18 is x = 3 + 5/6y

The equation is given as:

6x - 5y = 18

Add 5y to both sides of the equation

6x - 5y + 5y= 18 + 5y

Evaluate the sum

6x = 18 + 5y

Divide both sides by 6

6x/6 = (18 + 5y)/6

Evaluate the quotient

x = (18 + 5y)/6

This gives

x = 3 + 5/6y

Hence, the solution of x in the equation 6x - 5y = 18 is x = 3 + 5/6y

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The amount it would cost to paint the outside of the box is £208

From the question, we are to determine calculate how much it would cost to paint the outside of the box

To do this, we will calculate the surface area of the box

The surface area of a box is given by

S.A = 2(lw + lh + wh)

Where S.A is the surface area

l is the length

w is the width

and h is the height  

From the given information,

l = 10 cm

w = 80 cm

h = 20 cm

Thus,

S.A = 2(10×80 + 10×20 + 80×20)

S.A = 2(800 + 200 + 1600)

S.A = 2(2600)

S.A = 5200 cm²

Also, from the given information

The paint costs £0.04 per cm2

Thus,

The cost is £0.04 × 5200

= £208

Hence, the cost is £208

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Answer:

Your answer is dc

Step-by-step explanation:

We're given a point that the line intersects and its slope.

Let's use Point-slope:-

\(\boxed{y-y1=m(x-x1)}\)

y1 = -5

m=-5

x1=-1

\(\boxed{y-(-5)=-5(x-(-1)}\)

\(\boxed{y+5=-5(x+1)}\)

Convert to slope-intercept:-

\(\boxed{y+5=-5x-5}\)

\(\boxed{y=-5x-5-5}\)

Finally,

\(\bigstar{\boxed{\pmb{y=-5x-10}}\)

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)

Answer:

3,4

Step-by-step explanation:

Just picture it in your head where the point is on the graph and move it over 4 points.

Answer:

Solution Below.

Step-by-step explanation:

This Questions tests on Simplifying Algebraic Expressions

Algebraic Expressions are expressions made up of both numbers and alphabets which are normally variables. Just like Numerical Expresions, Algebraic Expressions can be simplified by using order of operations as well.

Example: 4x + 7(x - 6) = 4x + 7x - 42 = 11x - 42

Using the above concept, we can simplify the given expression:

(Note that a and b are separate variables(

\( \frac{5}{3} ( \frac{4}{3}a + 9b + \frac{2}{3} a) \\ = \frac{5}{3} (2a + 9b) \\ = \frac{10}{3} a + \frac{45}{3} b \\ = 3 \frac{1}{3} a + 15b\)

Answer:

B

Step-by-step explanation:

Answer:

6d-30

Step-by-step explanation:

6(d-5)

6d-30             distributive property

The order of operations is:

Parentheses, Exponent, Division, Multiplication, Addition, Subtraction.

Or PEMDAS.

hope it helps!

Answer:

It depends

Step-by-step explanation:

It depends on how many problems are in the test. If the test has a standard amount of ten questions, you can only miss one question if you want to get a solid 90%. If the test has twenty questions, you can miss two to get that 90%.

If you're going for an 80% (or B), you can miss two on a ten-question test and four on a twenty-question test.

Again, it all depends on the number of questions and what percentage you want to get on the test.

The Answer will be: 1.3

Step-by-step explanation:

when 58 is divided by 78 the answer comes out to be 0.7435

58/78 = 0.7435.

hope this helps you, my dear.

Answer:

a=2

b=1

Step-by-step explanation:

5a-5b=5

a+b=3

-a     -a

b=3-a

5a-5(3-a)=5

5a-5(3)-5(-a)=5

5a-15+5a=5

10a-15=5

10a=20

a=2

2+b=3

b=1

5(2)-5b=5

10-5b=5

-5b=-5

b=1

Answer:

a = 2

b = 1

Step-by-step explanation:

5a - 5b = 5

a + b = 3

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

5(a + b = 3)

= 5a + 5b = 15

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

5a - 5b = 5

5a + 5b = 15

10a = 20

÷10    ÷10

a = 2

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

a + b = 3

2 + b = 3

-2        -2

b = 1

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

I hope this helps!

Answer:

-3 > P

Step-by-step explanation:

1 > 3P + 10​

Subtract 10 from each side

1-10 > 3P + 10-10​

-9 > 3P

Divide each side by 3

-9/3 > 3P/3

-3 > P

Answer:

He had to have walked 5 dogs and done one survey

Step-by-step explanation:

Answer:

A. 48

Step-by-step explanation:

4 + 2(3 + 25 - 6) =

4 + 2(28 - 6) =

4 + 2 x 22 =

4 + 44 =

48

Hope that helps!

The smallest possible inside length of the cubical steel tank that can hold 600 L of water is approximately X meters. This calculation is based on the assumption that 1 liter of water occupies 1 cubic decimeter.

To determine the smallest possible inside length of the tank, we need to calculate the volume of the tank and then find the side length of the cube. Given that the tank needs to hold 600 L of water, we can convert this volume to cubic meters by dividing by 1000 (since 1 cubic meter is equal to 1000 liters). So, the volume of the tank in cubic meters is 600/1000 = 0.6 cubic meters.

Since the tank is cubic in shape, the volume can be calculated by raising the length of any side to the power of 3. Let's denote the side length of the cube as 's'. Therefore, we have the equation s^3 = 0.6.

Taking the cube root of both sides, we find s = ∛0.6. Evaluating this expression, we get s ≈ 0.824 m (rounded to three decimal places).

Therefore, the smallest possible inside length of the cubical steel tank that can hold 600 L of water is approximately 0.824 meters.

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Answer:

3t (t²-7t-4t)

Step-by-step explanation:

The highest common factor was 3t

answer here!

sry it is a bit messy

Answer:

1) 11001 base 2

2)133 base 5

1) To convert base 10 into base 2

25/2= 12remainder 1

from this point on, the remainders will be replaced by r

12/2= 6r0

6/2=3r0

3/2=1r1

1/2=0r1

The remainders are then written down from the bottom up

= 11001

2) To convert 101011 base 2 into base 5

101011= 1×2⁵ + 0×2⁴+ 1×2³+ 0×2² + 1×2¹ + 1×2⁰

=1×32 + 0×16 + 1×8+ 0×4+1×2+1×1

=32+0+8+0+2+1

=43 base 10

Then convert 43 base 10 to base 5

43/5=8r3

8/5=1r3

1/5=0r1

=133 base 5

The greatest common divisor (24,6) is 6 and the least common multiple (24,6) is 24.

As per the question statement, the greatest common divisor of two integers is (x+2) and the least common multiple x(x+2). It is given that one of the integers is 24.

Let us assume that "b" is the value of other one.

greatest common divisor(24,b) = (x+2)

least common multiple(24,b) = x(x+2)

Formula:

greatest common divisor(24,b)*least common multiple(24,b) = 24*b

24*b = (x+2)*x(x+2)

\(b = \frac{x(x+2)^{2} }{24} \\\)

Hence, the smallest possible value of the other one is "6" and x = 4.

Hence, the greatest common divisor (24,6) is 6 and the least common multiple (24,6) is 24.

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The amount owed by the debtor is $10865

The given parameters about the compound interest are

Principal Amount, P = $5300

Interest Rate, R = 8%

Time, t = 6 years

To calculate the amount owed, we make use of the following formula

A = P + CI

Where

Compound interest, CI = P(1 + R)^t - P

So, the equation becomes

A = P + P(1 + R)^t - P

Evaluate the like terms

A = P(1 + R)^t

In this question, the formula is given as

A = P(1 + r/n)^nt

Where

n = 12, i.e compounded monthly

Substitute the known values in the above equation

A = 5300 * (1 + 8%/12)^(6*12)

Express 8% as decimal

A = 5300 * (1 + 0.08/12)^(6*12)

Evaluate the sum

A = 5300 * (1.01)^(6*12)

Evaluate the exponent

A = 5300 * 2.05

Evaluate the product

A = 10865

Hence, the value of the amount after 6 years is $10865

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Answer:

$140.024

Step-by-step explanation:

We know

A TV that usually sells for $183.52 is on sale for 30% off.

183.52 x 0.7 = $128.464

So, $128.464 is the price of the TV on sale for 30% off, not including tax yet.

If the sales tax on the TV is 9%, what is the price of the TV, including tax?

9% = 0.09

128.464 x 0.09 = $11.56

Then we take

128.464 + 11.56 = $140.024

So, the price of the TV is $140.024

Answer:

1 /5

Step-by-step explanation:

formulae -

possible outcomes / total chances

2/10

1/5