what expressions can be used to calculate the total price of a DVD that cost d dollars if the tax rate is 7.5%

Answer: The tip is $14.00

Step-by-step explanation: 20% of 70 is 14.

Answer:

x=12

Step-by-step explanation:

Since b would equal E

We can make an equation.

x^2 -5x = 84

So that can be solved down to

x^2 -5x -84= 0

(x-12)(x+7)=0

x=12

x=-7

Now we see which one equals 84.

(12)^2 -5(12)=84

-7^2-5(-7)=14

therefore 12 is the correct answer and -7 does not work.

The new position of minute hand if it starts from 1 and turns 210°  will be at the 40 minutes mark on the clock face.

The minute hand of a clock completes a full rotation every 60 minutes, or 360°. This means that each minute on the clock face corresponds to an angle of 6 degrees. (360 divided by 60 minutes). If the minute hand starts from the 1 and turns 210 degrees, we can calculate the number of minutes it has moved by dividing 210 by 6, which gives us 35. Therefore, the new position of the minute hand will be 35 minute mark on the clock face. However, since the minute hand started at the 1, we need to add 5 minutes in the final answer.

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Answer:

10 packages

Step-by-step explanation:

When Mr. Rankin opens the box and looks straight down on it, he could see two packages. The 12x9 paper package can fit two, side by side in the 18X12 box.

Then there also can fit a stack 5 packages tall. Each bundle is 2 inches tall and the box is 10 inches tall.

Two stacks, 5 deep is 10 packages. see image.

Answer: Change x to a number, and that number + 1 will be y

Step-by-step explanation: the reason for this is simple, change the independent variable, which is always in the problem, and you can figure out the dependent variable.

Answer:

X +1

Step-by-step explanation:

the graph is x +1.....

Answer:

The new price is $100.

Step-by-step explanation:

20% of $125 = 0.2 × 125 = $25

New price = Regular price - Discount

New Price = $125 - $25 = $100

The answers include the following:

This is referred to as the ratio of distance to the time in which the distance was covered and it is a scalar quantity.

Sport article or research or record a sports new cast will be able to predict the outcome of this race due to the data being gathered which will provide more information about the race.

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The t-test yields the probability (p value) that the null hypothesis is option (B) incorrect

The p-value in a t-test represents the probability of obtaining the observed test statistic (or one more extreme) assuming that the null hypothesis is true. The null hypothesis is typically a statement of "no effect" or "no difference" between two groups being compared in the test.

Therefore, a low p-value (generally less than 0.05) indicates that the observed data is unlikely to have occurred by chance under the null hypothesis and suggests that the null hypothesis is likely to be false.

In other words, a low p-value provides evidence against the null hypothesis and in favor of the alternative hypothesis (which typically represents the hypothesis that the researchers are interested in testing).

Thus, the p-value does not directly tell us whether the null hypothesis is correct or incorrect, but rather whether the evidence supports rejecting it or not.

Therefore, the correct option is (B) incorrect

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The weight of Franklin’s mountain bike in kilograms which  weighs 17,000 grams is equal to option A. 17 kilograms.

Weight of Franklin’s mountain bike  in grams is equal to 17,000 grams

Convert the grams into kilograms.

One kilograms is equal to one thousand grams

1 kilograms = 1000 grams

⇒ 1 grams = ( 1 / 1000 ) kilograms

⇒ 17,000 grams = ( 17,000 / 1000 ) kilograms

⇒ 17,000 grams = 17 kilograms

Therefore, after converting grams into kilograms the weight of Franklin’s mountain bike whose weight in grams is 17,000 grams  is equal to option A. 17 kilograms.

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The area of the trapezoid is approximately 42.5 square meters. So, the answer closest to this value is 38 m^2.

What is trapezoid ?

A trapezoid is a quadrilateral with at least one pair of parallel sides. In a trapezoid, the parallel sides are called the bases of the trapezoid, and the non-parallel sides are called the legs. The height of a trapezoid is the perpendicular distance between the bases.

There are several types of trapezoids, including isosceles trapezoids, where the legs are of equal length, and right trapezoids, where one leg is perpendicular to both bases. Trapezoids are commonly used in geometry and can be used to find the area of various shapes, such as triangles and rectangles.

To find the area of the trapezoid, we can use the formula:

Area = (1/2) x (sum of bases) x height

Since the trapezoid is isosceles, the length of the two parallel sides are the same. Let's call that length "x". We can use this information to set up an equation:

3 + 4 + 7 + x = 2x

Simplifying, we get:

14 + x = 2x

x = 14

So the length of both parallel sides is 14 meters.

Now we can plug in the values into the area formula:

Area = (1/2) x (3 + 14) x 5

Area = 8.5 x 5

Area = 42.5

Therefore, the area of the trapezoid is approximately 42.5 square meters. So, the answer closest to this value is 38 m^2.

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Answer: B 38m squared.

Step-by-step explanation:

I took the test and got this question correct.

The equivalent expression is -0.45t - 0. 05. Option D

Equivalent expressions are those expressions having the same solution.

From the information given, we have the expression as;

(0.35t -0.4) - (0.8t - 0.35)

Now, to simply the expression, take the steps;

expand the bracket;

0.35t - 0.4 - 0.8t+ 0.35

Now, collect the like terms

0.35t  - 0.8t - 0.4 + 0.35

Add or subtract the like terms

-0.45t - 0. 05

Hence, the expression is -0.45t - 0. 05

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Answer:

9°

Step-by-step explanation:

x + 4x + 5x + 6x + 7x + 8x + 9x = 360

40x = 360

x = 9

The smallest angle measures x, and x = 9, so its measure is 9°.

Answer: 9°

The length and width of a rectangle is Positively correlated variables and the base and height of a triangle is negativley correlated variables.

In mathematics, there are many examples of variables that can be positively or negatively correlated. Here are two examples:

a. Positively correlated variables: The length and width of a rectangle. If you increase the length of a rectangle, the width tends to increase as well. So, there is a positive correlation between the length and width of a rectangle.

b. Negatively correlated variables: The base and height of a triangle. If you increase the base of a triangle, you can keep the area the same by decreasing the height, and vice versa. So, there is a negative correlation between the base and height of a triangle.

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Answer:

Step-by-step explanation:

The formula to calculate the future value of an investment with compounded interest is:

Future value = Principal * (1 + rate/compoundings per year)^(number of years * compoundings per year)

In this case, the principal is $10,000, the interest rate is 2.5%, compounded annually, and the number of years is 20. So, the future value can be calculated as follows:

Future value = $10,000 * (1 + 2.5%/1)^(20 * 1)

Future value = $10,000 * (1.025)^20

Future value = $10,000 * 1.62897526

Future value = $16,289.75

Therefore, $10,000 deposited in an account earning 2.5% interest compounded annually would be worth $16,289.75 in 20 years.

Answer:

135

Step-by-step explanation:

The max value is where the far right point of the "whisker" is.

Step-by-step explanation:

the first equation is already (without any transformation) expressing y in terms of x.

we can use that identity in the second equation :

-2x - 4(5x + 3) = 10

-2x - 20x - 12 = 10

-22x = 22

x = -22/22 = -1

and then we use the first equation to solve for y :

y = 5×-1 + 3 = -5 + 3 = -2

so,

x = -1

y = -2

Answer:

The nth term of an arithmetic sequence is given by an = a + (n – 1)d ... Step 1: First, calculate the difference between each pair of adjacent terms.

Step-by-step explanation:

Hope this help's you

The probability that a randomly selected US teenager has either read Harry Potter and the Half Blood Prince or seen the movie is 84%.

To create a Venn diagram for this situation, you would need two circles that overlap in the middle. One circle would represent the 48% of teenagers who read the book, and the other circle would represent the 58% of teenagers who saw the movie. The overlap between the two circles would represent the 22% of teenagers who both read the book and saw the movie.

            +-----------------------------------------+

            |                                                 |

            |                    Read                    |

            |                   48% (R)                 |

            |                                                 |

            +--------------------+-------------------+

            |                         |                       |

            |                         |                       |

            |                         |                       |

            |    Both (B∩R)   |   Movie (M)   |

            |     22% (B)        |   58% (M)      |

            |                          |                      |

            |                          |                      |

            |                          |                      |

            +---------------------+------------------+

                              Not Read

                            30% (N∩M)

Here, R represents the event of reading the book, M represents the event of watching the movie, and B represents the event of both reading the book and watching the movie. The numbers in parentheses represent the percentage of US teenagers in each event. The area of each circle represents the total number of US teenagers.

To find the probability that a randomly selected US teenager has either read the book or seen the movie, you need to find the total area of the two circles (the 48% who read the book plus the 58% who saw the movie) and subtract the overlap (the 22% who both read the book and saw the movie). This gives you:

P(read or saw) = 48% + 58% - 22% = 84%

So the probability that a randomly selected US teenager has either read Harry Potter and the Half Blood Prince or seen the movie is 84%.

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A triangular fence having dimensions 2x + 3, y − 6, and 4x − 3, has a perimeter of Option D: 6x + y - 6 feet.

What are triangles?

Triangles are a particular sort of polygon in geometry that have three sides and three vertices. Three straight sides make up the two-dimensional figure shown here. An example of a 3-sided polygon is a triangle. The total of a triangle's three angles equals 180 degrees. One plane completely encloses the triangle.

A triangular fence has measurements -

a = (2x + 3) feet

b = (y - 6) feet

c = (4x - 3) feet

The formula for perimeter of a triangle is -

Perimeter = sum of all three sides

So the equation will be -

Perimeter = a + b + c

Substitute the values in the equation -

Perimeter = (2x + 3) + (y - 6) + (4x - 3)

Perimeter = 2x + 3 + y - 6 + 4x - 3

Perimeter = 6x + y - 6

Therefore, the value for perimeter is 6x + y - 6 feet.

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Answer: 240 Grams.

Step-by-step explanation: First I need to find how many grams each bat eats, then multiply the 48 bats by each gram the bats eat. And you would get 240!

Answer:

36°

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

Incenter is the intersection of angle bisectors.

It means ST is angle bisector of ∠VSW, therefore:

Work Shown:

24 min : 1 hour

24 min : 60 min

24 : 60

24/12 : 60/12

2 : 5

The ratio of 24 minutes to 1 hour is 2 : 5

A ratio compares values. A ratio says how much of one thing there is compared to another thing. even though there are more squares. The trick with ratios is to always multiply or divide the numbers by the same value. Example: A Recipe for pancakes uses 3 cups of flour and 2 cups of milk.

Solution:

Find the ratio of 24 to 1 hour = 60 minutes:

[tex]= > Ratio = \frac{24}{60} \\\\\\= > Ratio =\frac{2}{5} \\\\= > \boxed{Ratio =\bold{2:5}}[/tex]

Hence, the ratio of 24 minutes to 1 hour is 2 : 5.

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Based on the information in the graph, it can be inferred that Josephine must have painted 1/4 of the painting.

To find the amount (fraction) of the paint, Josephine should have painted the section marked on the image. To know how much that section is equivalent to, we must take as a reference that the entire painting would be 1.

So, if we divide the painting in half, it would be 1/2, that is, we paint 1 of 2 possible parts. However, in the case of Josephine there are 4 possible parts and she only painted one. From the above, what she should have painted was 1/4.

Note: This question is incomplete. Here is the complete information:

question:

Approximately what portion of the painting was Josephine supposed to paint?

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A polynomial is a mathematical expression consisting of variables, coefficients, and exponents, we can be multiply two polynomials step by step.

Distribute each term of the first polynomial to every term of the second polynomial.

Combine like terms by adding the coefficients of the terms that have the same variables raised to the same powers.

Simplify the result by arranging the terms in descending order of the exponent of the variable.

For example, let's say you want to multiply (2x + 3) and (x - 4):

(2x + 3) * (x - 4) = 2x * x - 2x * 4 + 3 * x - 3 * 4

Simplify the terms: 2x^2 - 8x + 3x - 12

Combine like terms: 2x^2 - 5x - 12

Therefore, the product of (2x + 3) and (x - 4) is 2x^2 - 5x - 12.

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The required interior angle of 20-gon measures 162 degrees.

The interior angle measure for the n-sided polygon is given by
Interior angle measure = (n-2) x 180° / n, where n is the number of sides (or vertices) of the polygon.

Here,

To find the measure of each interior angle of a 20-gon (icosagon), we can use the formula:

For a 20-gon, n = 20. Substituting this into the formula, we get:

Interior angle measure = (20-2) x 180° / 20

= 18 x 180° / 20

= 162°

Therefore, each interior angle of 20-gon measures 162 degrees.

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The value of P(-3) is -12, Quotient is (-2x² + x - 3) and Remainder is 6.

Remainder Theorem is a method for dividing polynomials according to Euclidean geometry. This theorem states that a polynomial P(x) divided by a factor (x - a) is not really an element of the polynomial.

Given:

P(x) = -2x³-5x²-3.

Using the remainder theorem, the value of P(3) is given by:

P(-3)=  -2x³-5x²-3.

P(-3) =  -2(-3)³-5(-3)²-3

P(-3) = -2(-27) -5(-9) -3

P(-3) = -54 + 45 - 3

P(-3) = -12

As, the divisor of P(x) is (x+3).

so, the division is

                                  (x+3) | -2x³-5x²-3 | -2x² + x - 3

                                             -2x³-6x²

                                          __________

                                                        x² - 3

                                                        x² + 3x

                                                     ________

                                                               -3x - 3

                                                               -3x - 9

                                                              _______

                                                                      6

So, the Quotient is (-2x² + x - 3) and Remainder is 6.

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The standard deviation of the sampling distribution of x bar (the mean of a sample) is always less than the standard deviation of the population from which it is sampled.

Central Limit Theorem states that as the sample size increases, the sampling distribution of x bar approaches a normal distribution with a mean equal to the population's mean and a standard deviation equal to the population's standard deviation divided by the square root of the sample size.

Standard deviation of the sampling distribution of x = σ / √N,

where:

σ  = standard deviation of the population

N = sample size

As a result, the standard deviation of the sampling distribution of x bar is also less variable than the standard deviation of the population.  

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The perimeter of the given rectangle is option (b) 2x + 2y + 14.

Perimeter is a mathematical term used to describe the distance around the boundary of a two-dimensional shape.

In this case, we are given a rectangle with a length of x+8 and a width of y-1, and we are asked to find its perimeter, p.

To find the perimeter of a rectangle, we need to add up the lengths of all four sides. In a rectangle, opposite sides are equal in length, so we can simplify the calculation by multiplying the sum of the length and width by two. This gives us the formula:

perimeter = 2(length + width)

Substituting the given values for the length and width of our rectangle, we get:

p = 2(x+8 + y-1)

p = 2(x+y+7)

Simplifying further, we get the answer:

p = 2x + 2y + 14

Therefore, the correct option is (b).

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Complete Question:

What is the perimeter, p, of a rectangle that has a length of x + 8 and a width of y − 1?

a) p = 2x + 2y + 18

b) p = 2x + 2y + 14

c) p = x + y − 9

d) p = x + y + 7

Answer:

The system of equation is y=12x+5

Step-by-step explanation: