What is the inverse of a quadratic called?

Answer:

7:52am

Step-by-step explanation:

John leaves by 5:00am

He gets to school after 35 minutes

The time now is 5:00 + 0:35 = 5:35am

After 2 hours and 2 mins of lectures, the time is 5:35 + 2:02 = 7:37am

After 15 minutes, the time is 7:37 + 0:15 = 7:52am

Therefore the answer is 7:52am.

hi <3

15x = 10

divide both sides by 15

x = 0.66666

hope this helps :)

Answer:

15x = 10

x = 0.667

Step-by-step explanation:

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Answer:

21

Step-by-step explanation:

This is extremely hard to do on paper so I used a calculator but this is my explanation. So 12% = .12 so the decimal way is 175 x .12 = 21. Pizza was 21 times.

Answer:

Pizza was served on 21 days.

Step-by-step explanation:

12% of 175 days comes out to 21 days.

Pizza was served on 21 days.

Best Buy's expected value on the warranty is $1.25.

To calculate Best Buy's expected value on the warranty, we need to consider the potential outcomes and their probabilities.

If the customer doesn't return the item for a claim on the warranty, Best Buy receives $25 for the warranty but doesn't have to pay anything out. The probability of this happening is 95% (100% - 5%).

If the customer does return the item for a claim on the warranty, Best Buy has to refund the $250 purchase price but received $25 for the warranty. The probability of this happening is 5%.

So, to calculate the expected value, we can multiply the probability of each outcome by its value and add them together:

(0.95 x $25) + (0.05 x -$250) = $1.25

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Answer:

The third option

Step-by-step explanation:

The domain is saying x is greater than or equal to 2, so the third option fits that description.

Hopefully this helps!

Brainliest please?

\u gotta ask ur question

Step-by-step explanation:

Infinitely many because if you subtract 7x from both sides, you get 4 = 4, which is true at all times no matter what x is.

The explicit formula for the given sequence is an = (1/2)ⁿ(5).

The given sequence is defined recursively as a0 = 5 and an = (an-1)/2 for n = 1,2,3,.... To find the explicit formula for this sequence, we can use the general formula for a recursive sequence of the form an = f(an-1), which is given by:

an = fⁿ⁻¹)(a1), where f^(n-1) denotes the composition of the function f with itself n-1 times.

In this case, f(an-1) = (an-1)/2, so we have:

an = f(an-1) = (1/2)an-1

Substituting an-1 in terms of an-2, we get:

an = (1/2)an-1 = (1/2)(1/2)an-2 = (1/2)² an-2

Continuing this pattern, we can write:

an = (1/2)ⁿ an-n

Now, we know that a0 = 5, so substituting n = 0 in the above equation, we get:

a0 = (1/2)⁰ a0 = a0 = 5

Substituting n = 1,2,3,..., we get:

a1 = (1/2)¹a0 = (1/2)5 = 2.5

a2 = (1/2)² a0 = (1/4)5 = 1.25

a3 = (1/2)³ a0 = (1/8)5 = 0.625

and so on.

Therefore, the explicit formula for the sequence is:

an = (1/2)ⁿ a0 = (1/2)ⁿ (5)

answer in 100 words: The given sequence is defined recursively as a0 = 5 and an = (an-1)/2 for n = 1,2,3,.... To find the explicit formula for this sequence, we can use the general formula for a recursive sequence of the form an = f(an-1). By substituting the recursive formula, we get an = (1/2)^n a0. Therefore, the explicit formula for the sequence is an = (1/2)ⁿ(5). The first few terms of the sequence are a0 = 5, a1 = 2.5, a2 = 1.25, a3 = 0.625, and so on. The sequence approaches zero as n approaches infinity.



In conclusion, the explicit formula for the given sequence is an = (1/2)ⁿ (5). This formula can be used to find any term in the sequence without having to calculate the previous terms. The sequence approaches zero as n approaches infinity, which means that the terms become smaller and smaller as n increases.

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The first 3 terms of the sequence are 21, 24 and 29

From the question, we have the following parameters that can be used in our computation:

n² + 20

This means that

f(n) = n² + 20

The first 3 terms of the sequence is when n = 1, 2 and 3

So, we have

f(1) = 1² + 20 = 21

f(2) = 2² + 20 = 24

f(3) = 3² + 20 = 29

Hence, the first 3 terms of the sequence are 21, 24 and 29

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The range of the function that represents the volume if water throughout the tub after x minutes will be "\(5 \leq V(x) \leq 20\)".

According to the question,

V(x) is volume after x minute.

then,

→ \(V(x) = 0.5x+5\)

Volume of bathtub is 20 gallons,

→ \(20=0.5x+5\)

By substracting "5" from both sides of the equation, we get

→ \(20-5=0.5x+5-5\)

→       \(15=0.5x\)

→         \(x = \frac{15}{0.5}\)

→         \(x = 30\ minutes\)

hence,

→ \(5 \leq V(x) \leq 20\)

Thus the above answer is right.

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Step-by-step explanation:

please give me brainlest

I do not understand what is your question.

Answer:

192

Step-by-step explanation:

You have to find 20% of 240.

So write 20% as 20 over 240 in fraction form.

\(\frac{20}{240}\)

Since, finding the fraction of a number is same as multiplying the fraction with the number, we have

\(\frac{20}{100}\) of 240 = \(\frac{20}{100}\) × 240

Therefore, the answer is 48

If you are using a calculator, simply enter 20÷100×240 which will give you 48 as the answer.

Now since it  wants to know how much you paid for the goods you do 240-48=192

So since a company is selling goods with a 20% profit

That means they bought it from somewhere else

Because they had to be manufactured

It wants how much the company paid the company that manufactured the goods

I hope this helped. Some resources that are helpful to look at in case of any more confusion are:

https://answers.everydaycalculation.com/percent-of/20-240

https://www.mathsisfun.com/

https://www.ixl.com/

Good luck young mathematician!

The slide projector with a 100 mm-focal length lens will produce a sharp image on the screen located approximately 203 mm away from the lens when the slide is placed 103 mm from the lens. The dimensions of the image produced by a slide measuring 24.0 by 36.0 mm will depend on the magnification factor of the projector.

In order to determine the distance between the lens and the screen, we can use the lens equation:

1/f = 1/v - 1/u

where f is the focal length of the lens, v is the distance between the lens and the screen (image distance), and u is the distance between the lens and the object (slide distance). Rearranging the equation to solve for v, we have:

1/v = 1/f + 1/u

Substituting the given values, we get:

1/v = 1/100 + 1/103

Simplifying this equation gives us the value of v, which is approximately 203 mm. Therefore, the screen should be placed approximately 203 mm away from the lens to obtain a sharp image.

To determine the dimensions of the image produced by the slide, we can use the magnification equation:

magnification = -v/u

Given the values of v and u, we can calculate the magnification factor. The dimensions of the image can then be obtained by multiplying the magnification factor by the dimensions of the slide. However, without the magnification factor or additional information, it is not possible to explicitly determine the dimensions of the image.

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(a) The number 72% is a D. statistic.

(b) The unknown true percentage of American citizens who like ''real TV'' is a C. parameter.

It is related to statistics and parameters.

(a) The number 72% is a statistic because it represents a summary measure of the sample of individuals who participated in the phone-in poll.

A statistic is a numerical value calculated from a sample of data, and it is used to make inferences about the population from which the sample was drawn.

(b) The unknown true percentage of American citizens who like ''real TV'' is a parameter.

A parameter is a numerical characteristic of a population, such as a mean, proportion, or standard deviation, and it is typically unknown and estimated from sample data.

In this case, the percentage of all American citizens who like ''real TV'' is unknown and cannot be directly observed, so it is considered a parameter.

The phone-in poll only represents a sample of individuals who called in to the newspaper and cannot be used to estimate the parameter for the entire population.

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The highest common factor, termed H.C.F of the expressions P and Q such that P divides Q without remainder, is; P.

It follows from the task content that the highest common factor, termed H.C.F of the expressions P and Q such that P divides Q without remainder is to be determined.

Since P divides Q without reminder as indicated in the task content, it follows that P is a factor of Q and as expected, it is also a factor of itself.

Hence, it follows that the expression P can be agreed to be a common factor of P and Q and more specifically, the highest Common factor of both expressions.

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Answer: 30

Step-by-step explanation:

Use Pythagorean's Theorem, a² + b² = c²

18² + 24² = c²

324 + 576 = c²

900 = c²

√900 = c

c = 30

The missing side is 30.

Hope this helps!

In the given experiment on the proportion of children in the high-income group,

(a) The correct alternative hypothesis is p < .50

(b) The value of the test statistic is -2.18

(c) The P-value is 0.0142

(d) Based on the P-value, we fail to reject H0

(e) The hypothesis is concluded as the proportion of the children in the high-income group that drew the nickel too large is at least 50%

a) Identify the correct alternative hypothesis: Based on the given question, the correct alternative hypothesis is p < 50.

b) The test statistic value is: From given, ˆpp^ = 0.2286, N = 35, and the hypothesis is p < 0.50(≈ 1 - 0.50)

Then, the test statistic value is z = (ˆp - p) / √(p*q / n)

Here,p = 0.50q = 1 - p = 1 - 0.50 = 0.50n = 35ˆp = 0.2286Then,z = (0.2286 - 0.50) / √(0.50 * 0.50 / 35)= -2.18

Therefore, the test statistic value is -2.18.

c) Using the P-value method, Since the null hypothesis is left-tailed and p < .50,

P-value = P(Z ≤ z)Here,z = -2.18P(Z ≤ -2.18) = 0.0142

Therefore, the P-value is 0.0142.

d) Since the P-value (0.0142) is less than the level of significance (α = 0.05), we reject the null hypothesis. Therefore, based on this, we fail to reject H0.

e) Since the null hypothesis cannot be rejected, it can be concluded that there is not enough evidence to support the claim that the proportion of children in the high-income group that drew the nickel too large is less than 50%.

Hence, it can be concluded that the proportion of children in the high-income group that drew the nickel too large is at least 50%.

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The extraneous solution of the logarithmic problem \(\rm log_3(18x^3)-log_3(2x) = log_3 144\) is -4.

A log function is a way to find how much a number must be raised in order to get the desired number.

\(a^c =b\)

can be written as

\(\rm{log_ab=c\)

where a is the base to which the power is to be raised,

b is the desired number that we want when power is to be raised,

c is the power that must be raised to a to get b.

Solving the function using the basic logarithmic value, we get,

\(\rm log_3(18x^3)-log_3(2x) = log_3 144\\\\ log_3\dfrac{(18x^3)}{(2x)} = log_3 144\\\\ log_3(9x^2)= log_3 144\\\\\text{Taking antilog}\\9x^2 = 144\\x = \sqrt{\dfrac{144}{9}}\)

If we solve further we will get that the value of x can be either -4 or 4, if take the value of x as -4, in the beginning then you will get log₃(18(-4)³) as the log of negative value which is impossible.

Hence, x=-4 is an extraneous solution.

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Answer:

x = negative 4

Step-by-step explanation:

The comment and answer above is correct.

Answer:

if it is arithmetic, ach item us increase linearly. The general term is - 175+100(n-1)

where n is the number of term.

the 4th term is 125

if it is geometic, each item us increased exponetially. T he general term is 25/9 x 3^(n-1)

where n is the number of term

the 4th term is 75

The correct verbal expression for 8n is "the product of 8 and n". therefore, option H is the correct choice.

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
The correct verbal expression for 8n is "the product of 8 and n". Therefore, option H is the correct choice.

Option F "n more than 8" would be written as "n + 8".

Option G "the quotient of 8 and n" would be written as "8/n".

Option J "8 increased by n" would be written as "8 + n".

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Answer:

y=17x-55

Step-by-step explanation:

y-(-4)=17(x-3)

y+4=17x-51

y=17x-55

Answer:

The answer is 2 and 5

Step-by-step explanation:

Answer:

i think . it is c

Step-by-step explanation:

Answer:

22. acute triangle

23. right triangle

24. equilateral triangle

25. right triangle

Step-by-step explanation:

let me know if any of these are wrong

The domain of the function \(f(x) = \sqrt{\frac{1}{3}x + 2\) is (d) x  ≥ -6

From the question, we have the following parameters that can be used in our computation:

\(f(x) = \sqrt{\frac{1}{3}x + 2\)

Set the radicand greater than or equal to 0

So, we have

1/3x + 2 ≥ 0

Next, we have

1/3x  ≥ -2

So, we have

x  ≥ -6

Hence, the domain of the function is (d) x  ≥ -6

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Answer:

y = 4

Step-by-step explanation:

To find the slope, you plug the coordinates into the slope formula.

y2 - y1/ x2 - x1

= 4 - 4/ -5 - 7

= 0

The slope is 0.

To find the y-intercept, y = 0x + b

4 = 0(7) + b

4 = 0 + b

4 = b

The equation is y = 4

Answer:

the answer is 29.61

Step-by-step explanation:

cross multiply or set up a basic multiplication box removing the decimals and adding it back

From Boston to Kansas City, it takes 20 minutes to get there. When calculating the plane's arrival time, multiply the 360 mph speed from Boston by the 864 mi distance to Chicago.

Regardless of an object's beginning or ending position, we can define distance as the amount of ground it has traveled.

given

When calculating the plane's arrival time, multiply the 360 mph speed from Boston by the 864 mi distance to Chicago.

Distance = rate*time

864 = 360t,

t = 2.4

In other words, the flight arrived after 2.4 hours. Given that this is longer than two hours, divide the number by sixty to determine the time in minutes:

60 * 2.4 = 144 minutes. Assess the flight's travel time from Kansas City now.

It took 2 hours, 4 minutes, or 124 minutes from the time it departed at 8:30 AM to the time it arrived at 10:34 AM.

According to this, the jet from Kansas City arrived 144 – 124 = 20 minutes earlier than the plane from.

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