solve for x: (-x+18)(x+4)

Answer:

Step-by-step explanation:

[tex]7 \times 3 + 2 = 23 [/tex]

[tex]2 \times 3 + 2 = 8[/tex]

[tex] \frac{23}{8}[/tex]

so if want to have improper fraction this is the answer but to get proper fraction i am continuing

[8 \div 23 \sqrt[23]{80} to get the correct answer.you can get a mixed fraction too when you multiply 8 how many times you will get 23 8×2=16=2whole number 16 as the numerator and 8 as the denominator

Answer:

A

Step-by-step explanation:

step by step you will learn

Answer: The atmospheric pressure decreases with altitude. This is because as we move higher above the earth's surface, there is less air above us and therefore less weight pushing down on us. Therefore, the correct answer is:

C. An altitude of 7 km above sea level

At an altitude of 7 km above sea level, a person would experience the least atmospheric pressure because they would be furthest from the earth's surface and there would be very little air above them. This is why the air pressure in the Earth's upper atmosphere is much lower than at the surface of the Earth.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Here are the step-by-step instructions to find the number of ear cleanings that the groomer gave:

Start with the given number of nail trims, which is 15.

Divide the number of nail trims by 5 to find out how many groups of 5 nail trims there are. This gives us: 15 ÷ 5 = 3.

Multiply the number of groups of 5 nail trims by the corresponding ratio of ear cleanings per 5 nail trims, which is 3. This gives us: 3 × 3 = 9.

This means that for every 5 nail trims, the groomer gave 3 ear cleanings, and since the groomer gave 15 nail trims, they gave 9 ear cleanings in total.

So, the pet groomer gave 9 ear cleanings in total.

Answer:

We can start by setting up a ratio of the number of fruit skewers made to the number of liters of milkshake made:

fruit skewers : milkshake = 202020 : 444

Simplifying this ratio by dividing both sides by 444, we get:

fruit skewers : milkshake = 455 : 1

This means that for every 1 liter of milkshake made, Atilio makes 455 fruit skewers. Therefore, if Atilio makes 202020 liters of milkshake, they would make:

202020 x 455 = 91919100

So, Atilio would make 91919100 fruit skewers for the party.

Step-by-step explanation:

Answer:

Step-by-step explanation:

We can use the distributive property and basic algebraic operations to multiply the given expression:

(2x+3)(x^2 - 6x - 2)

= 2x(x^2 - 6x - 2) + 3(x^2 - 6x - 2) // Distribute 2x and 3

= 2x^3 - 12x^2 - 4x + 3x^2 - 18x - 6 // Multiply each term

= 2x^3 - 9x^2 - 22x - 6 // Combine like terms

Therefore, (2x+3)(x^2 - 6x - 2) simplifies to 2x^3 - 9x^2 - 22x - 6.

Answer:

Step-by-step explanation:

To calculate the present value (PV) and future value (FV) of the cash flow stream, we can use the following steps:

Calculate the present value of each cash flow using the formula:

PV = CF / (1 + r)^n

where CF is the cash flow, r is the annual interest rate, and n is the number of years until the cash flow is received.

For the first three cash flows of $150 at the end of each of the next 3 years, assuming a starting point of Year 0, we have:

PV1 = $150 / (1 + 0.11)^1 = $134.59 (Year 1)

PV2 = $150 / (1 + 0.11)^2 = $120.75 (Year 2)

PV3 = $150 / (1 + 0.11)^3 = $107.99 (Year 3)

For the cash flow of $250 at the end of Year 4:

PV4 = $250 / (1 + 0.11)^4 = $165.14

For the cash flow of $300 at the end of Year 5:

PV5 = $300 / (1 + 0.11)^5 = $179.34

For the cash flow of $500 at the end of Year 6:

PV6 = $500 / (1 + 0.11)^6 = $277.12

Add up the present values of each cash flow to find the present value of the entire stream:

PV = PV1 + PV2 + PV3 + PV4 + PV5 + PV6

PV = $134.59 + $120.75 + $107.99 + $165.14 + $179.34 + $277.12

PV = $985.93

Therefore, the present value of the cash flow stream is $985.93.

To find the future value of the cash flow stream, we can simply add up the cash flows and then apply the future value formula:

FV = CF x [(1 + r)^n - 1] / r

where CF is the sum of the cash flows, r is the annual interest rate, and n is the number of years from the present until the future value is calculated.

CF = $150 x 3 + $250 + $300 + $500 = $1,100

n = 6 (assuming a starting point of Year 0)

FV = $1,100 x [(1 + 0.11)^6 - 1] / 0.11

FV = $2,525.72

Therefore, the future value of the cash flow stream is $2,525.72.

Answer:

26

Step-by-step explanation:

10(2) -2(-3)=20+6=26

Answer:

Step-by-step explanation:

[tex]\tt 10a-2b[/tex]

[tex]\tt a=2[/tex]

[tex]\tt b=-3[/tex]

______

Simplify: 10×2 = 20

Simplify: 2×-3= -6

Simplify:-

_____________________

Hope this helps! :)

There are 509 tourists only visited the LEGOLAND (of these three).

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Now, To find the number of tourists who only visited LEGOLAND, we need to subtract the tourists who visited LEGOLAND and another theme park from the total number of tourists who visited LEGOLAND.

Calculation:

First, we can find the total number of tourists who visited LEGOLAND:

Total = Tourists who visited only LEGOLAND + Tourists who visited LEGOLAND and another park

Hence, Total = (Total visitors to LEGOLAND) - (Tourists who did not visit any of the parks)

Total = 1,033 - (256 + 267 + 75 + 93 - 52 - 82 - 33)

Total = 1033 - 260

Total = 509

Hence, There are 509 tourists only visited the LEGOLAND (of these three).

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The probability of getting tens depends on the context. If you are referring to a regular deck of cards, there are four tens out of 52 cards, so the probability is 4/52 or 1/13. If you are referring to rolling a regular six-sided die, there is only one ten, so the probability is 1/6.

The probability of getting tens depends on the context. If you are referring to a regular deck of cards, there are four tens (10 of hearts, diamonds, clubs, and spades) out of a total of 52 cards. So the probability of drawing a ten is 4/52 or 1/13. If you are referring to rolling a regular six-sided die, there is only one ten (the number 10 itself) out of a total of six possible outcomes. So the probability of rolling a ten is 1/6.

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Answer:

onomatopoeia

Step-by-step explanation:

onomatopoeia are words that are sounds

Answer:

Onomatopoeia

Step-by-step explanation:

Answer:

300.20

Step-by-step explanation:

because it was a nice guesss

The prove that triangle ABE is congruent to triangle CDE is given below

Generally, To prove that triangle ABE is congruent to triangle CDE, we need to show that they have the same size and shape.

First, we can see that angle AED and angle CEB are opposite angles and therefore congruent, since AB || DC.

Also, since line AB = line DC, we know that segment AE is congruent to segment CE and segment BE is congruent to segment DE.

Using these congruent sides and the congruent angle, we can apply the Side-Angle-Side (SAS) congruence criterion to conclude that triangle ABE is congruent to triangle CDE.

Therefore, we have proven that triangle ABE is congruent to triangle CDE.

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$7,008 is the future value of a 2-year investment of $6,525 into a simple interest rate account with an annual interest rate of 3.7%.

percentage, a relative value indicating hundredth parts of any quantity.

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

FV = P(1 + rt)

where FV is the future value, P is the principal amount, r is the annual interest rate expressed as a decimal, and t is the time period in years.

P = $6,525

r = 0.037

t = 2 years

Plugging these values into the formula, we get:

FV = $6,525(1 + 0.037×2)

FV = $6,525(1.074)

FV = $7,008.

Therefore, the future value of a 2-year investment of $6,525 into a simple interest rate account with an annual interest rate of 3.7% is $7,008.

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The domain and the range of h(n) consist of all possible sets of whole numbers.

Other answers are listed below

How to determine the domain and the range of h(n)

From the question, we know that:

h(n) is the number of houses

n and h(n) can only take whole numbers as its values

So, we have

Thus, the domain and range consist of all possible sets of whole numbers.

How to determine h(5) and h(11)

From the figure, we can see that

The number of houses is the same as the figure number

This means that

h(5) = 5 and h(11) = 11

How to represent the explicit function of h(n)

By the computations above, we have the formula of h(n) to be:

h(n) = n

The values of s(4) and s(7)

Here, we have

s(n) is the number of segments

From the figure, we can see that

The number of segments is twice the the figure number

So, we have

s(4) = 8

s(7) = 14

The growth pattern of s(n)

Recall that:

The number of segments is twice the the figure number

This means that

The growth pattern of s(n) is linear, with a constant rate of change

The explicit function of s(n)

Above, we have

The number of segments is twice the the figure number

Mathematically, this can be expressed as

s(n) = 2n

How to complete the table for f(5) and f(7)

From the table, we can see that

The division of a term by 2 gives the next term

So, we have

f(5) = 2/2 = 1

f(7) = 1/2/2 = 1/4

How to determine the domain of f(n)

The possible values of n are real numbers

Thus, the domain consist of all possible sets of real numbers.

The observation of the function

Above, we have

The division of a term by 2 gives the next term

This represents the observation

How to determine the value of g(4)

From the question, we have

This means that

g(n) = 2(9)^n-1

So, we have

g(4) = 2(9)^3

g(4) = 1458

How to complete the statements

The function is a doubling function

So, we have

g(n) = g(n - 1) * 2, g(n) = g(n - 2) * 4 and  g(n) = g(n - 3) * 8

How to determine the value of g(24)/g(21)

Recall that

g(n) = 2(9)^n-1

So, we have

g(24) = 2(9)^23

g(21) = 2(9)^20

When the equations are divided, we have

g(24)/g(21) = 2(9)^23/2(9)^20

Evaluate

g(24)/g(21) = 729

Hence, the value is 729

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When polygon ABCD is dilated by a factor of 2. Then,

Point A′ is at  (-2, -2) and point D′ is at (4, -2).

A reference point needed to scale a dilation of such a figure correctly is the centre of dilatation.

A fixed point there in plane around whereby all points are enlarged or contracted is the centre of a dilation. The centre, which may be found within, outside, or on a figure, is the only unchanging.

Thus,  A' will occur at :(2 × (-1), 2 × (-1)) = (-2, -2)

D' will occur at (2 × 2, 2 × (-1)) = (4, -2).

Thus, when polygon ABCD is dilated by a factor of 2. Then,

Point A′ is at  (-2, -2) and point D′ is at (4, -2).

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The complete question is-

In the figure, polygon ABCD is dilated by a factor of 2 to produce A′B′C′D′ with the origin as the center of dilation.

Point A′ is at

(2 , 1)

(-2, -2)

(1 , -2)

( -2 , 2)

and point D′ is at

(-2 , 2)

(4 , -2)

(4 , 2)

(-2 , 2)

If the bacteria in a dish that contains 2 bacteria quadruple every 16 minutes can be represented by the expression 2×4t/16, an equivalent expression for the number of bacteria in the dish for any time, t, in minutes is B. 8t/16.

An equivalent expression depicts two algebraic expressions that have the same value when the values for the variables are plugged in.

An algebraic expression is the combination of variables, values, constants, and numbers using mathematical operands without the equal symbol (=).

2×4t/16 = 8t/16

2×4t/16 ≠ 4t8

2×4t/16 ≠ 2×2t8

2×4t/16 ≠ 4×2t16

Thus, 2×4t/16 = 8t/16 as equivalent expressions.

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Answer:

Step-by-step explanation:

The simple interest can be calculated using the formula:

I = P * r * t

where:

P = principal amount = $575

r = annual interest rate = 6.5% = 0.065

t = time period = 10 years

I = 575 * 0.065 * 10

I = $373.75

The new balance can be found by adding the interest to the principal:

New balance = Principal + Interest

New balance = $575 + $373.75

New balance = $948.75

Rounded to the nearest cent, the new balance is $948.75.

The total cost of Joeli's purchases is $45.35.

What is the addition?

Addition is a mathematical operation that combines two or more numbers or quantities to produce a sum. It is one of the four basic arithmetic operations, along with subtraction, multiplication, and division. In addition, the numbers being combined are called addends, and the result is called the sum. The addition operator is represented by the symbol "+".

To find the total cost of Joeli's purchases, we need to add the cost of the helmet to the cost of the elbow pads:

Total cost = helmet cost + elbow pads cost

Total cost = $27.57 + $17.78

Total cost = $45.35

Therefore, the total cost of Joeli's purchases is $45.35.

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The two points with an x-coordinate of 2 and a distance of 5 from (-2, -4) are: (2, -4 + 2√13) and (2, -4 - 2√13)

What is distance formula?

Distance is a measurement of how far away two things or locations are, either numerically or occasionally qualitatively.

Distance formula: [tex]distance = \sqrt{((x2 - x1)^2 + (y2 - y1)^2)}[/tex]

We can solve this problem using the distance formula, which gives us the distance between two points in a plane:

[tex]distance = \sqrt{((x2 - x1)^2 + (y2 - y1)^2)}[/tex]

Let (x, y) be a point with an x-coordinate of 2. Then we can write the distance from (-2, -4) to (x, y) as:

[tex]distance = \sqrt{((x - (-2))^2 + (y - (-4))^2)}[/tex]

Simplifying this expression, we get:

[tex]distance = \sqrt{((x + 2)^2 + (y + 4)^2)}[/tex]

We know that the distance between (-2, -4) and (x, y) is 5. Therefore, we can write:

[tex]\sqrt{((x + 2)^2 + (y + 4)^2)} = 5[/tex]

Squaring both sides, we get:

[tex](x + 2)^2 + (y + 4)^2 = 25[/tex]

Expanding the left side, we get:

[tex]x^2 + 4x + 4 + y^2 + 8y + 16 = 25[/tex]

Simplifying this expression, we get:

[tex]x^2 + 4x + y^2 + 8y - 5 = 0[/tex]

To find all points with an x-coordinate of 2 that satisfy this equation, we can substitute x = 2 and simplify the resulting equation:

[tex]2^2 + 4(2) + y^2 + 8y - 5 = 0[/tex]

Simplifying this equation, we get:

[tex]y^2 + 8y + 3 = 0[/tex]

We can solve this quadratic equation using the quadratic formula:

y = (-b ± sqrt(b^2 - 4ac)) / 2a

where a = 1, b = 8, and c = 3.

Plugging in these values, we get:

y = (-8 ± sqrt(8^2 - 4(1)(3))) / 2(1)

Simplifying this expression, we get:

y = (-8 ± √52) / 2

y = (-8 ± 2√13) / 2

y = -4 ± √13

Therefore, the two points with an x-coordinate of 2 and a distance of 5 from (-2, -4) are: (2, -4 + 2√13) and (2, -4 - 2√13)

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Answer:

B

Step-by-step explanation:

The answer is 21 because the pattern is multiplying by 3!

240 more residents have an occupation in industry than have an occupation in government. The solution has been obtained by using arithmetic operations.

It is believed that the four fundamental operations, often referred to as "arithmetic operations", can describe all real numbers. The four mathematical operations that produce the quotient, product, sum, and difference are divide, multiply, add, and subtract.

We are given a graph determining the types of occupations of the 1,200 residents of a town.

Percentage of residents having occupation in government is:

100% - 25% - 15% - 25% - 30% = 5%

Number of residents having occupation in industry is as follows:

25% of 1200 = 300

Similarly, number of residents having occupation in government is:

5% of 1200 = 60

Number of more residents that have occupation in industry than have an occupation in government is:

300 - 60 = 240

Hence, 240 more residents have an occupation in industry than have an occupation in government.

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The circle graph was missing in the question which has been attached below.

The graph of the piecewise function is added as an attachment

Let c(x) be the cost of an automotive ad with x lines.

For the first 4 lines, the cost is $34, so:

c(x) = 34, for 1 ≤ x ≤ 4

For each additional line beyond the first 4, the cost is $3.50, so:

c(x) = 34 + 3.50(x - 4), for x > 4

When these two cases are put together, we get the piecewise function:

c(x) = 34, for 1 ≤ x ≤ 4

c(x) = 34 + $3.50(x - 4), for x > 4

This function represents the cost of an automotive ad as a piecewise function that depends on the number of lines in the ad.

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Answer: Marginal cost is the added cost to produce an additional good or the increase in production costs generated by the production of additional product units

Step-by-step explanation:  It is calculated by taking the total change in the cost of producing more goods and dividing that by the change in the number of goods produced.

Answer:

So it's basically the cost added by producing one extra unit of a product or service. I hoped this helped and if you need a better explanation let me know!

As a result, for purchases of $9500, the salesperson gets a royalty of $285.

Commission, also known as a sales bonus, is paid to employees in accordance with the amount of sales they make. Statement generation is offered without charge by SumUp Bills. Frequently, a fee is calculated as a percentage of the sale's value.

To find the commission that the salesperson receives for $9500 in sales, we can use the formula:

commission = rate x sales

where rate is the commission rate as a decimal, and sales is the amount of sales.

In this case, the rate is 3% or 0.03, and the sales is $9500.When these numbers are added to the algorithm, we obtain:

commission = 0.03 x $9500

Simplifying this expression, we get:

commission = $285

Therefore, the salesperson receives a commission of $285 for $9500 in sales.

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The probability that exactly three plants don't grow is given as follows:

0.0054 = 0.54%.

The mass probability formula, giving the probability of x successes, is of:

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

The parameters are given by:

The parameter values for this problem are given as follows:

The probability that exactly three don't grow is P(X = 3), hence:

P(X = 3) = C(8,3) x (0.05)^3 x (0.95)^5 = 0.0054.

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Answer:

There is a direct relationship, in which the value of the division of the circumference by the diameter is a constant. This constant is know as Pi.

A function is a relationship between a few different inputs and an output, where each input can only lead to one possible outcome.

(i) The exponential function that models the decay of the substance is given by:

[tex]N(t) = Noe^(-0.088t)[/tex]

(ii) If [tex]400g[/tex] of the substance is present at to, then  [tex]No = 400g[/tex] . Therefore, the amount of the substance remaining after 3 days is:

[tex]N(3) = 400e^(-0.0883) = 309.21g[/tex]  (rounded to two decimal places)

(iii) The rate of change of the amount of the substance after 3 days is given by:

 [tex]dN/dt = -0.088N(3) = -0.088309.21 = -27.21 g/day[/tex] (rounded to two decimal places)

(iv) To find the number of days it takes for half of the original [tex]400g[/tex] of the substance to remain, we need to solve the equation:

[tex]N(t) = 0.5No[/tex]

[tex]0.5No = Noe^(-0.088t)[/tex]

[tex]0.5 = e^(-0.088t)[/tex]

[tex]ln(0.5) = -0.088t[/tex]

[tex]t = ln(0.5)/(-0.088) = 7.89 days[/tex] (rounded to two decimal places)

Therefore, after  [tex]7.89[/tex] days, half of the original  [tex]400g[/tex] of the substance will remain.

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The value of x is 54 when measure of arc MLis 76 Degrees and measure of Angle JLK is 54 Degrees.

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.

Measure of arc ML=76 Degrees and

Measure of Angle JLK = 54 Degrees

We have to find the value of x

O is the centre of the circle.

As we see the figure angle L is corresponding to 54 degrees.

x=54

Hence, the value of x is 54 when measure of arc MLis 76 Degrees and measure of Angle JLK is 54 Degrees.

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Answer:

See below.

Step-by-step explanation:

We are asked for the diameter, radius, and area of a circle.

We are given the Circumference.

We should know that;

[tex]Circumference = (diameter)\pi[/tex]

[tex]Circumference = 24\pi[/tex] (Exact)

This means that the Diameter is 24.

The Radius is [tex]\frac{1}{2}[/tex] of the Diameter.

This means that the Radius is 12.

The area of a circle is represented as;

[tex]Area = \pi(radius)^2[/tex]

We have the requirements to find the area, with the value of the radius.

Solve for the area;

[tex]Area = \pi(12)^2[/tex]

[tex]Area = 144 \pi[/tex] (Exact)

[tex]Area = about \ 452.39.[/tex] (Approx.)