The price of a phone is decreased by 19% and now is $319.14. Find the original price

The equation of the function shown in the graph is f(x) = x² + 6x + 7.

A parabola is a two dimensional figure on a plane which is U shaped and any point on the parabola is at an equal distance from a fixed point called focus and a fixed line called directrix.

We know that, equation of a parabola in vertex form is,

f(x) = a (x - h)² + k, where (h, k) represents the vertex of the parabola.

Here, it is already given that, vertex form of a quadratic function is

f(x) = (x − h)² + k

That is, a = 1

Vertex = (-3, -2)

Equation of the function is,

f(x) = (x - -3)² + (-2)

f(x) = (x + 3)² - 2

f(x) = x² + 6x + 9 - 2

f(x) = x² + 6x + 7

Hence the equation of the function is f(x) = x² + 6x + 7.

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Answer:

 f(x) = x² + 6x + 7.

Step-by-step explanation:

Profit equals total revenue minus total costs, which is the relationship between a company's total revenue, profit, and total costs. Give an illustration of a cost that an accountant wouldn't consider a cost, such as an opportunity cost.

Profit is the result of revenues minus costs. Some expenses are subtracted from the gross profit. To calculate net profit, you subtract all expenses.

The whole cost a business incurs to produce a specific level of production is known as the overall cost in economics.

Total revenue is the total amount of money a seller can earn from selling goods or services to clients. PxQ, or the purchase price multiplied by the quantity of the goods sold, is the formula for calculating this. The term "total cost" in economics refers to the complete amount of expenses a manufacturer incurred while producing a good.

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The complete question is: What Is the Relationship Between Total Revenue Profit & Total Costs?

The solution to the inequality in this problem is given as follows:

b. x < -17 or x > 15.

The inequality for this problem is defined as follows:

0.25|x + 1| > 4.

Isolating the absolute value, we have that:

|x + 1| > 4/0.25

|x + 1| > 16.

The absolute value of a number represents it's distance from the origin, meaning that the inequality can be written as follows:

x + 1 < -16 or x + 1 > 16.

Then the first interval in the solution of the inequality is given as follows:

x + 1 < -16

x < -17.

The second interval in the solution of the inequality is given as follows:

x + 1 > 16

x > 15.

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Answer:

Step-by-step explanation:

The surface area of the triangular pyramid can be found by adding the area of the base to the area of the lateral faces. The lateral faces are congruent isosceles triangles.

The area of the base can be found using the formula for the area of an equilateral triangle:

A = (s^2 * √3) / 4, where s is the length of one side of the equilateral triangle base.

Since the area of the base is given as 15.6 in², the length of one side of the base can be found:

15.6 = (s^2 * √3) / 4

s^2 = (4 * 15.6) / √3

s^2 = 64 / √3

s = 4 * √(64 / 3)

s = 4 * 4

s = 6

So, each side of the base measures 6 in.

Next, find the surface area of the lateral faces. The lateral faces are congruent isosceles triangles with a slant height of 8 in and base length of 6 in.

The area of each lateral face can be found using the formula for the area of an isosceles triangle:

A = (b * h) / 2, where b is the base length and h is the height.

For this pyramid:

b = 6 in

h = 8 in

A = (6 * 8) / 2 = 24 in²

Since there are three lateral faces, the total area of the lateral faces is 3 * 24 in² = 72 in².

Finally, the surface area of the pyramid is the sum of the area of the base and the area of the lateral faces:

A = base area + lateral face area

A = 15.6 in² + 72 in² = 87.6 in²

Step-by-step explanation:

the new cocrfinations are

K' (-1, 7)

H' (-1, 5)

J' (5, 7

I' (2, 2)

Answer:

Step-by-step explanation:

I think its the last one

The equation y = 15x + 20 means that the registration fee is $20 and $15 is charged per month

An equation is an expression showing the relationship between two or more numbers and variables. An equation can either be linear, quadratic, cubic and so on depending on the degree.

The standard form of a linear equation is:

y = mx + b

Where m is the rate of change and b is the y intercept

Let y represent the total cost of an amusement park membership for x number of months

Given that:

y = 15x + 20

Therefore the rate of change is $15 per month and the initial fee is $20. This means that the registration fee is $20 and $15 is charged per month

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Answer: the mean will increase but the median will be unchanged

Step-by-step explanation: (I used desmos. Plugging all values in and using functions --> statistics ----> mean/median)

before values:

median- 82

mean- 80.81

After values:

median- 82

mean- 81.76

5-3y=6 so (5-3y)squared is 36

The square number or perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with itself. For example, 9 is a square number, since it equals 3² and can be written as 3 × 3.

From the question;

The equation 5 - 3y = 6. Next we are to find (5 - 3y)².

If we know 5 - 3y = 6, we can turn this equation, (5 - 3y)²

into this: 6² (because we can substitute the expression with 6)

6² is 36.

Hence,  [tex](5-3y)^{2}[/tex] is 36

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Answer:

Step-by-step explanation:

Yes, the two lines are parallel.

Lines are parallel if they have the same slope. The slope of a line can be found by rearranging the equation into the slope-intercept form: y = mx + b, where m is the slope.

For line L: y = 5x + 1, so the slope is 5.

For line L^2: 2y - 10x + 3 = 0, rearrange to get y = -5x + (3/2). The slope of the line is -5.

Since the two lines have the same slope (both 5), they are parallel.

Answer:

Step-by-step explanation:

The sample space for rolling a fair seven-sided die is the one on the first option.

S= {1, 2, 3, 4, 5, 6, 7}

For any experiments with some given outputs, the sample space is the set of the possible outputs.

For example, for a coin with two outputs (heads and tails) the sample space is just {head, tails}

Particularly, for a fair seven-sided die we have 7 possible outputs, which are all the whole numbers from 1 to 7, then the sample space for that die is:

S= {1, 2, 3, 4, 5, 6, 7}

So the correct optionis the first one.

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Answer:

The sample space for rolling a fair seven-sided die is the one on the first option.S= {1, 2, 3, 4, 5, 6, 7}

Step-by-step explanation:

that's it simple

Can't really solve it without a graph but I can show you how to get the graph

so if you have a graphing calculator you can hit the y= button and type in your problem and just switch the inequality for a =

The difference between the median is 0.5. option D

Getting the sets of values that we have in order, we can see that we have;

12, 15, 33, 45, 46, 51, 52, 93

We can find the median between  4th and 5th numbers this is now going to give us that;  (45+46)/2 =  45.5

Median value  = 45.5

We can see that 93 is the outlier in the data set so if we remove it we would have;

12, 15, 33, 45, 46, 51, 52

The median of the data set in this case is 45.

The difference is;

45.5 - 45 = 0.5

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Missing parts;

The number of lattes sold daily for two coffee shops is shown in the table:

Lattes

12

52

93

33

51

15

46

45

Based on the data, what is the difference between the median of the data, including the outlier and excluding the outlier?

A.46

B.45.5

C.45

D.0.5

The converse of the statement  x⇒y is y⇒ x, So correct option is A.

A converse statement is a type of logical statement in mathematics that takes a conditional statement and switches its hypothesis and conclusion. The converse of a statement is formed by interchanging the hypothesis and conclusion of the original statement. In other words, the converse of a statement takes the form "If B, then A," whereas the original statement takes the form "If A, then B."

For example, consider the statement "If it rains, then the roads are wet." The converse of this statement would be "If the roads are wet, then it rains." It's important to note that the converse of a statement may not always be true, even if the original statement is true.

In mathematical proofs, a converse statement can sometimes be used to support a proof, but it is not always reliable on its own. This is because the converse of a statement only establishes a logical relationship between two statements if both the original statement and its converse are true. If either the original statement or its converse is false, then the converse cannot be used to make a conclusion about the relationship between the two statements.

In conclusion, a converse statement is a type of logical statement that takes a conditional statement and switches its hypothesis and conclusion. It's important to note that the converse of a statement may not always be true, and its validity depends on the validity of both the original statement and its converse.

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Answer:

26 quarters were from Florida

Step-by-step explanation:

The total number of quarters from California and Texas is 5 + 8 = 13.

Twice the number of quarters from California and Texas is 2 * 13 = 26.

The number of quarters from Florida is 39 - 13 = 26.

So, Carol had 26 quarters from Florida.

The instantaneous rate of change of the daily receipts on day 42 is approximately -0.542 million dollars day-1.

Rate of change is a major of house quickly one quantity change in relation to another.it is parisu of the changing the changing another quantity over specified time period.

The instantaneous rate of change of the daily receipts on day 42 can be estimated by taking the difference in receipts between day 28 and day 42 and dividing it by the difference in time between them. Since day 28 and day 42 are 14 days apart, the instantaneous rate of change of the daily receipts on day 42 can be calculated as:

Rate of change = (5.587 - 14.666) / 14 = -0.542 million dollars day-1.

Therefore, the instantaneous rate of change of the daily receipts on day 42 is approximately -0.542 million dollars day-1.

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Answer:1.28

Step-by-step explanation:

The piecewise function will be f(x) = - 0.5x - 1.5 if -6 ≤ x ≤ - 1, f(x) = -2 if - 1 < x ≤ 3, and f(x) = (5/3)x + 7 if 3 < x ≤ 6.

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The equation of the line in the interval [-6, -1] whose points are (-3, 0) and (-1, -1) is given as,

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

y = - 0.5x - 1.5

The equation of the line in the interval (1, 3] whose points are (0, -2) and (3, -2) is given as,

(y + 2) = [(-2 + 2) / (3 - 0)](x + 0)

y = - 2

The equation of the line in the interval (3, 6] whose points are (3, -2) and (6, 3) is given as,

(y + 2) = [(3 + 2) / (6 - 3)](x + 3)

y + 2 = (5/3)(x + 3)

y = (5/3)x + 7

The function is given as,

f(x) = - 0.5x - 1.5 if -6 ≤ x ≤ - 1

f(x) = -2 if - 1 < x ≤ 3

f(x) = (5/3)x + 7 if 3 < x ≤ 6

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On solving the provided question, we cans ay that ratio is 2:3=> 2x + 4x = 4 => x = total fat is 6.6666666667

Ratios show how often one number is contained in another in mathematics. For instance, the ratio of oranges to lemons in a fruit dish is 8 to 6 if there are 8 oranges and 6 lemons present. In a similar vein, the proportion of oranges to whole fruit is 8, while that of lemons to oranges is 6:8. A ratio is an ordered pair of numbers a and b that is expressed as a / b, with b not equal to zero. An equation equating two ratios is known as a ratio. The ratio can be expressed as 1:3, for instance, if there is 1 boy and 3 girls (for every boy she has 3 girls) 3/4 are girls, while 1/4 are boys.

The ratio of saturated fat to total fat in a caramel frappucino is 2 to 3

There are 4 more grams of total fat than saturated fat

ratio is 2:3

2x + 4x = 4

x = 4/6*10

x = 6.6666666667

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Answer:

For the muffins, she will use 3/4 cup of flour and for the topping, she will use 1/8 cup of flour.

25/6=71/5-k

k=71/5-25/6

k=301/30

Answer

c

explanation

A. y < -2x + 4

B. y < -4x -2

D. y < 2x + 4

C. y. < -2x - 4 This would be the correct answer

The place value of 5 in 2.35 x 10⁴ is 500.

In scientific notations numbers are written in the form of a base that is

0  ≤ b < 10 and multiplied by 10ⁿ where n represents integers.

We write large standard numbers in scientific form in a compact manner.

Given, A number  2.35 x 10⁴ in scientific form.

Now, The decimal form of the number is   2.35 x 10000.

= 23500.

Now, In 23500 5 is in the hundredths place,

Therefore, The place value of 5 is 500.

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The amount of money he will need to purchase the paper and ink is $299.04.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Cost of 1 ream = $5.89

Cost of 1 ink cartridge = $29.30

Now,

Number of reams to buy = 6

Number of ink cartridges to buy = 9

The amount needed to buy.

= 6 x 5.89 + 9 x 29.30

= 35.34 + 263.7

= $299.04

Thus,

The amount of money needed is $299.04.

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The solution is,

a) Melissa's monthly payment on the promissory note is $133.10.

b) The total of Melissa's monthly payments is $6,388.80.

c) The total finance charge is $388.80.

Using an online finance calculator, we can compute the promissory note's monthly payments and finance charges (cost of credit).

The sum of the monthly payments is the total payments made by Melissa, consisting of the amount of the promissory note and the finance charges.

here, we have,

N (# of periods) = 48 months (4 years x 12)

I/Y (Interest per year) = 3.11%

PV (Present Value) = $6,000

FV (Future Value) = $0

Results:

PMT = $133.10

Sum of all periodic payments = $6,388.80

Total Interest = $388.80

Thus, Melissa's finance charge on the promissory note is $388.80, with a monthly payment of $133.10 for 4 years.

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The expression √6 (4√3 + 2√6)​ is multiplied and simplified to get 12√2 + 12

From the problem we have the expression

√6 (4√3 + 2√6)​

The problem is solved multiplying first

=√6 (4√3 + 2√6)​

= √6 * 4√3 + √6 * 2√6

Using the distributive property, we can simplify each term:

√6 * 4√3 = 4 * √(6 * 3) = 4 * √18 = 4 * 3√2

√6 * 2√6 = 2 * √(6 * 6) = 2 * √36 = 2 * 6

Adding the two simplified terms, we get:

4 * 3√2 + 2 * 6 = 12√2 + 12

So, the expression √6 (4√3 + 2√6) simplified to 12√2 + 12.

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A graph which shows a solution to the given system of linear equations is: a coordinate grid with one line that passes through the points 0 comma 0 and 1 comma 4 and another line that passes through the points 0 comma negative 1 and 2 comma 1.

A graph can be defined as a type of chart that's commonly used for the graphical representation of data on both the horizontal and vertical lines of a cartesian coordinate, which are the x-coordinate and y-coordinate.

here, we have,

In Mathematics, the graph of any proportional relationship such as a linear equation is represented by a straight line with the data points passing through the origin (0, 0) because as the values on the x-coordinate decreases or increases, the values on the y-coordinate decreases or increases simultaneously.

In conclusion, we can logically deduce that the graph (see attachment) representing the given system of linear equations shows a proportional relationship in one of the lines.

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The maximum height attained by the ball is 311 feet and it takes approximately 1.5 seconds to get there

To find the time at which the ball reaches its maximum height, we need to find when its velocity is equal to 0. We can find the velocity at any time by taking the derivative of the height function, f(x). So, f'(x) = -32x + 48. Setting f'(x) = 0, we get:

f'(x) = -32x + 48 = 0

32x = 48

x = 1.5

So it takes 1.5 seconds for the ball to reach its maximum height.

b. To find the maximum height, we substitute t = 1.5 back into the height function, f(x):

f(1.5) = -16(1.5)^2 + 48(1.5) + 275

f(1.5) = -16(2.25) + 72 + 275

f(1.5) = -36 + 72 + 275

f(1.5) = 36 + 275

f(1.5) = 311 ft

Therefore, the maximum height the ball reaches is 311 feet.

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