Of the 300 television sets sold at an electronics store last month, 90 were flat screen TV's. What is the ratio of flat-screen TV's to other TV's sold last month?

I don't know how to do this. I would appreciate some help. thanks!!​

Answer:165degrees

Step-by-step explanation

Use formula N-2 × 180 N is the number of sides

24-2=22

22x180=3960 total

for each angle divide total by 24=165 degrees

Answer:

it got to be C

Step-by-step explanation:

don't get mad if it not please I'm just trying to help

Answer:   C

Step-by-step explanation:

hope this helped

Answer:

Step-by-step explanation:

The set up will give a right angles triangle;

Given

The height of the ramp (opposite) = 6 foot

distance away along the ground = 40 feet (adjacent)

Required

Angle of depression theta

Using the TOA identity;

tan theta = opposite/adjacent

tan theta = 6/40

tan theta = 0.15

theta = tan^-1{0.15}

theta =8.53 degrees

hence the angle of depression to nearest tenth of a degree is 89.5 degrees

The simplified value of (1/7x+3/8) + (2/9x-18) is 23/63 x - 141/8.

The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.

Given:

(1/7x+3/8) + (2/9x-18)

=1/7 x + 3/8 + 2/9 x - 18

Taking the like terms along

=1/7 x +2/9 x + 3/8 - 18

Now, taking the LCM

=( 1/7 × 9/9)x+ (2/9 × 7/7) + 3/8- 18 x 8/8

= 9/63 x + 14/ 63 x + 3/8 - 144/8

= 23/63 x - 141/8

Hence, the simplified value is 23/63 x - 141/8.

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The age of Lisa and Myra now is 35 years old and 5 years old, respectively.

To determine how old each person now, use algebraic expression and equation.

Let x = current age of Lisa

y = current age of Myra

If the sum of Lisa's age and Myra's age is 40, then we can express it as:

x + y = 40

x = 40 - y

If in 10 years, Lisa will be 3 times as old as Myra, then we can express it as:

x + 10 = 3(y + 10)

x + 10 = 3y + 30

x - 3y = 20

Substitute the equation for x into the 2nd equation and solve for y.

x - 3y = 20

(40 - y) - 3y = 20

40 - 4y = 20

4y = 20

y = 5

Substitute the value of y into the equation for x and solve.

x = 40 - y

x = 40 - 5

x = 35

Therefore, Lisa is 35 years old while Myra is 5 years old.

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The name for a data value that is far above or below the rest is called an outlier.

An outlier is an observation that deviates significantly from other observations in a dataset. It is an extreme value that lies outside the typical range of values and may have a disproportionate impact on statistical analyses and calculations. Outliers can occur due to various reasons, including measurement errors, data entry mistakes, or genuine rare events. Identifying and handling outliers appropriately is important in data analysis to ensure accurate and reliable results.

When dealing with outliers, it is important to assess whether they are the result of errors or genuine extreme values. Statistical techniques, such as box plots, scatter plots, or z-scores, can be used to detect outliers. Once identified, the appropriate action depends on the nature and cause of the outliers. In some cases, outliers may need to be corrected or removed from the dataset, while in other cases, they may provide valuable insights or require further investigation.

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The x.length is the number of rows, which is 4. x[2].length is the number of columns in the 3rd row, which is 5. The expression "new double[4][5]" creates a 2D array of doubles with 4 rows and 5 columns. The correct answer is (b) 4 and 5.

The expression double[][] x = new double[4][5] creates a 2D array x with 4 rows and 5 columns. Therefore, x.length gives the number of rows, which is 4. And x[2].length gives the number of columns in the 3rd row (since array indices start at 0), which is 5. Therefore, the correct option is (b) 4 and 5.

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Answer:

Step-by-step explanation: I am sorry but i don't understand a single thing:(

Answer:

Open your dictionary, Find the word you are looking for and reread the Sentence and find the right definition that BEST fits the Sentence

Thank me Later :D

Step-by-step explanation:

Answer:

1.6924

Step-by-step explanation:

V=πr^2h/3=

Answer:

Below in bold.

Step-by-step explanation:

Vertex form.

y = a(x - h)^2 + k

The point (h, k) is the vertex so from the graph:

y = a(x - 1)^2 - 8

From the x -interesect we see that x = 6 when y = 0 so

0 = a(6 - 1)^2 - 8

25a - 8 = 0

a = 8/25

So the vertex form is

y = (8/25)(x - 1)^2 - 8.

Factored form:

y = (8/25)(x + 4)(x - 6)  

- as -4 and 6 are the zeros of the equation.

Standard form:

From the factored form we have

y = (8/25)(x^2 - 2x - 24)

y = 8/25 x^2 - 16/25 x - 192/25

or (in decimal form):

y = 0.32x^2 - 0.64x - 7.68.

The number of square inches of glass are needed to repair the window is 432 square inches

The given parameters are:

Length = 24 inches

Width = 18 inches

The number of square inches of glass are needed to repair the window is calculated as:

Area = Length * Width

So, we have

Area = 24 inches * 18 inches

Evaluate the product

Area = 432 square inches

Hence, the number of square inches of glass are needed to repair the window is 432 square inches

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Maria must cut an additional $70 from her expenses each month in order to save enough money to buy a new TV that costs $420 in 6 months. By allocating this additional amount towards her savings goal, she will be able to reach her target within the desired timeframe. It's important for Maria to review her budget and identify areas where she can reduce expenses in order to make room for the additional savings. This could involve cutting back on discretionary spending, finding ways to save on daily expenses, or exploring opportunities to increase her income.

Maria must cut an additional $70 from her expenses each month.

To determine how much additional money Maria must cut from her expenses each month to afford a new TV that costs $420 in 6 months, we divide the total cost by the number of months.

Additional money per month = Total cost / Number of months

Additional money per month = $420 / 6

Additional money per month = $70

With careful planning and commitment to her budget, Maria can achieve her goal of purchasing a new TV without compromising her financial stability.

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Answer:

\( \frac{x}{4} + \frac{1}{2} = \frac{1}{8} \)

\( \frac{x}{4} = - \frac{3}{8} \)

\(x = - \frac{3}{2} = - 1 \frac{1}{2} \)

The solution to the equation x/4 + 1/2 = 1/8 is x = -3/2.

Consider the equation, we have only one x term, so taking all the terms without x to the other side and terms with x on one side.

x/4 + 1/2 = 1/8

Take the 1/2 term on the other side,

x/4=1/8 - 1/2

Taking the LCM on the Right side,

x/4 = (1-4) / 8

x/4 = -3/8

Now, we have x/4 so what we can do is, shift the 4 to the other side too, we get,

x = ( -3/8) * 4

x = -3/2

The solution to the equation x/4 + 1/2 = 1/8 is x = -3/2.

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Answer:

-7/12

Step-by-step explanation:

(3/4*3/3)(4/3*4/4)

9/12-16/12

9-6/12=-7/12

Answer: \(x=4\)

Step-by-step explanation:  We know that these sides are corresponding because of their parallel values. Since 3 is corresponding to 6-4, we know that the side lengths on top are 3/2 rather than the ones on the bottom. To solve for x we do ,

\(2x-2 = 3/2(4)\)

Then,

\(2x-2=6\)

Next,

\(2x=8\)

Lastly,

\(x=4\)

To find the probability that a randomly selected item from an inventory of 50 digital video recorders (DVRs) is defective, we divide the number of defective items by the total number of items.

The probability of an event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes. In this scenario, the number of defective DVRs is given as 50. Since we are randomly selecting an item from the inventory of 50 DVRs, the total number of possible outcomes is also 50.

Therefore, the probability of selecting a defective item is calculated as 50 (defective DVRs) divided by 50 (total DVRs), which simplifies to 1. This means that every item in the inventory is defective, resulting in a probability of 1 or 100% for randomly selecting a defective item. The probability that a randomly selected item is defective is 1 or 100%.

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The constraint(s) to ensure that the ratio of 3 bedroom rentals to 2 bedroom rentals is no more than 4 to 1 is:

3X3 <= 4X2

This constraint states that the number of 3 bedroom rentals (X3) must be less than or equal to four times the number of 2 bedroom rentals (X2). This ensures that the ratio of 3 bedroom rentals to 2 bedroom rentals does not exceed 4 to 1.

For example, if there are 10 2 bedroom rentals (X2), the constraint would be:

3X3 <= 4(10)
3X3 <= 40

This means that the number of 3 bedroom rentals (X3) cannot exceed 40.

The constraint to ensure the ratio of 3 bedroom rentals to 2 bedroom rentals is no more than 4 to 1 is 3X3 <= 4X2.

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Answer:

15/56 lb of flour in each loaf

Step-by-step explanation:

There are 5 bags.

Each bag has 3/8 lb of flour.

The total amount of flour is 5 × 3/8 lb = 15/8 lb

The total amount of flour was divided into 7 equal parts.

Each part has

15/8 lb ÷ 7 = 15/8 lb × 1/7 = 15/56 lb

Answer:

When y = 20 ,x is −5

Step-by-step explanation:

How can a telephone survey of 1000 randomly selected US adults provide evidence that more than 1 in 4 US adults believe in ghosts?The survey results provide evidence that more than one in four US adults believe in ghosts. The telephone survey was conducted on a random sample of 1000 US adults. The survey found that 31 percent of US adults believed in ghosts.

To determine whether more than one in four US adults believe in ghosts, the null and alternative hypotheses will be tested.The null hypothesis in this scenario is that less than or equal to 25% of US adults believe in ghosts. The alternative hypothesis is that more than 25% of US adults believe in ghosts.Therefore, the level of significance (α) will be determined.

The α level is typically set to 0.05. This means that the likelihood of making a type I error is 5%. Then, the z-score will be calculated as follows:z = (0.31 - 0.25) / sqrt[(0.25 x 0.75) / 1000]z = 2.83The obtained z-score will be compared to the critical z-value using a z-distribution table. The critical z-value is 1.96. Since the obtained z-score is greater than the critical z-value, the null hypothesis will be rejected. Therefore, there is evidence to suggest that more than one in four US adults believe in ghosts.

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Answer:

Step-by-step explanation:

C) Y=2\3x-2

Answer:

Let's call the initial fee "x". The equation for the total cost of using a computer for t minutes at the internet cafe can be expressed as:

C = x + 0.60t

Knowing that the total charge to use a computer for 5 minutes would be $6, we can use this information to find the value of x:

C = x + 0.60 * 5

6 = x + 3

x = 6 - 3

x = 3

So, the equation representing the total cost of using a computer for t minutes at the internet cafe is:

C = 3 + 0.60t

We conclude that f(x) is odd, so the correct option is A.

f(x) is an odd function if:

f(-x) = -f(x).

f(x) is an even function if:

f(x) = f(-x).

In this case, we know that the function f(x) has the points:

{ (-2, 8), (-1, -3.5), (0, 0), (1, 3.5), (2, -8)}

As you can see:

f(-2) = 8

f(2) = -8

Then:

f(-2) = -f(2)

Also:

f(-1) = -3.5

f(1) = 3.5

Then:

f(-1) = -f(1).

So we conclude that this is an odd function, and the correct option is A.

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The probability that exactly 13 calls will be missed in a three-day period, assuming a Poisson distribution with a rate of 5 missed calls per day, is approximately 0.001114, or 0.1114%.

To find the probability that exactly 13 calls will be missed in a three-day period, we can use the Poisson distribution formula.

The formula for the Poisson distribution is:

P(X = k) = \((e^{-\lambda} * \lambda^k) / k!\)

Where:

P(X = k) is the probability of having exactly k events

e is the base of the natural logarithm (approximately 2.71828)

λ is the average rate of events per unit of time (in this case, the rate of missed calls per day)

k is the number of events we are interested in (in this case, 13 missed calls)

In this case, the rate of missed calls per day is 5, and we want to find the probability of exactly 13 missed calls in a three-day period. So, we need to calculate P(X = 13) for a Poisson distribution with λ = 5 * 3 = 15.

Using the formula, we have:

P(X = 13) = (e⁻¹⁵ * 15¹³) / 13!

Substituting the values into the formula, we get:

P(X = 13) = (2.71828⁻¹⁵ * 15¹³) / 13!

≈ (0.000355 * 1,953,125) / (13 * 12 * 11 * ... * 1)

≈ 0.000355 * 1,953,125 / 622,702

≈ 0.000355 * 3.136

≈ 0.001114

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x = -2 and y = -10 is the solution of the equations y = 8x +6 and 10x - 5y = 30.

What is Substitution method to solve equations?

The method of substitution involves three steps: Solve one equation for one of the variables. Substitute (plug-in) this expression into the other equation and solve. Resubstitute the value into the original equation to find the corresponding variable. he substitution method is the algebraic method to solve simultaneous linear equations.

Given Equations :

y = 8x +6

10x - 5y = 30

A) Solve equation [1] for the variable  y

    [1]    y = 8x + 6

B)  Plug this in for variable  y  in equation [2]

  [2]    -5•(8x+6) + 10x = 30

  [2]     - 30x = 60

C)  Solve equation [2] for the variable  x

  [2]    30x = - 60

  [2]    x = - 2

D)  By now we know this much :

   y = 8x+6

   x = -2

E)  Use the  x  value to solve for  y      y = 8(-2)+6 = -10

Solution : {y,x} = {-10,-2}

Hence , x = -2 and y = -10 is the solution of the equations y = 8x +6 and 10x - 5y = 30.

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