If f(x) = 2x² + 1 and g(x) = x² - 7, find (f - g)(x)

Answer:

it may be 3

Step-by-step explanation:

it may be bcz am not much good but still just trying

Answer:

that is your solution

hope it helps

Answer:

Mathematical problems can help you in life because it teaches you to go step by step and to think things through.

Step-by-step explanation:

Option c; The survey results will underestimate support for this political action committee in the entire population because people who respond are less likely to support an organization that asks for money. This is the correct statement about the survey.

Given,

A political action committee sends out a questionnaire to randomly-selected mailing addresses, asking people to rate the importance of a variety of economic and social issues facing the country. at the end of the questionnaire is an (optional) invitation to donate money to the political action committee.

We have to find the correct statement about the survey from the given options;

Because respondents are less inclined to support a group that solicits donations, the survey results will understate public support for this political action committee.

The correct statement about the survey is option c;

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Step-by-step explanation:

Out of the given options, only √196 is a rational number.

A rational number is a number that can be expressed as the ratio of two integers. In other words, it can be written in the form of p/q where p and q are integers and q is not equal to zero.

√56 cannot be simplified further and has no integer factors that can be canceled out to express it as a ratio of two integers. Therefore, it is an irrational number.

Similarly, √63 and √240 cannot be simplified further and do not have any integer factors that can be canceled out to express them as a ratio of two integers. Therefore, they are also irrational numbers.

On the other hand, √196 simplifies to 14 which is a ratio of two integers (14/1). Hence, it is a rational number.

In summary, only √196 is a rational number out of the given options.

Answer:

Step-by-step explanation: 0.21

Answer:

Let us call x the smallest integer. Because the next two numbers are consecutive even integers, we can call represent them as x + 2 and x + 4.

We are told the sum of x, x+2, and x+4 is equal to -78

x + (x + 2) + (x + 4) = -78

3x + 6 = -78

3x = -78-6

3x = -84

x = -28

Now,

(x+2) = -28+2

= -26

(x+4) = -28+4

= -24

This means that the integers are -28, -26, and -24.

Hence proved.

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Answer:

1) One of the equations that represents this scenario is A – B = 100.

2)One of the equations that represents this scenario is StartFraction 3 Over 8 EndFractionA + StartFraction 7 Over 8 EndFractionB = 2000.

4) To eliminate the B variable, multiply the first equation by 7 and the second by 8.

Step-by-step explanation:

Answer:

a b and d

Step-by-step explanation:

Answer:

Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay (α-decay), beta decay (β-decay), and gamma decay (γ-decay), all of which involve emitting one or more particles. The weak force is the mechanism that is responsible for beta decay, while the other two are governed by the electromagnetic and strong forces.[1]

Theoretical radioactive decay predicts the behavior of radioactive materials, while actual radioactive decay is the observed behavior of these materials in the real world.

A class of chemicals where the nucleus of the atom is unstable

Theoretical radioactive decay is based on the laws of physics and predicts the rate at which a radioactive material should decay.

It assumes that radioactive decay is a random process and that the decay rate is proportional to the amount of the radioactive material present.

Actual radioactive decay refers to the observed behavior of radioactive materials in the real world.

It takes into account factors that may affect the rate of decay, such as environmental conditions and the presence of other materials that may interfere with the decay process.

Actual radioactive decay may deviate from theoretical predictions due to these factors, making it important to measure and monitor the actual behavior of radioactive materials to ensure safety and accuracy in applications such as nuclear power and medicine.

Hence, theoretical radioactive decay predicts the behavior of radioactive materials, while actual radioactive decay is the observed behavior of these materials in the real world.

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The final price of the television is  $299.53.

Discount is somewhat a reduction in the actual or usual price of the object or service. Whereas, tax is the money that we have to pay to the government.

Price of television before discount = $375.00      (given)

Discount given = 25%                                             (given)

25% of $375 is,

$375* (25/100)= $93.75.

The cost of the television after sale off and before the sales tax is:

$375- $93.75= $281.25

The sales tax = 6%                                                    (given)

$281.25* (6.5/100)= $18.28

The price of the television including everything is,

$281.25+ $18.28= $299.53

Therefore, we can conclude the the final price of television is $299.53.

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Answer: 300

Step-by-step explanation:

20% of $250 is $50

So $300

Answer:

vtgggfdfhufjdbbrhenrvrhthrjt

Answer:

Step-by-step explanation:

You want to know a thermometer's reading 4 minutes and 9 minutes after begin brought into a room with a temperature of 36 °C if its initial reading is 10 °C, and it rises to 14 °C after 2 minutes.

Newton's law of cooling tells you the temperature difference of 36 -10 = 26 °C will decline exponentially. If it declines to 36 -14 = 22 °C after 2 minutes, then the temperature reading can be modeled by ...

  T = 36 -26·(22/26)^(t/2)

At times of t=4 and t=9, the temperature readings will be ...

__

Additional comment

The time constant of this thermometer is about 12 minutes, so it will take about 67 minutes to read within 0.1 °C of the room temperature.

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Answer: 4/5

Step-by-step explanation:

80% is 80/100

80/100 simplified is 4/5

Answer:

8/10 ( you didnt say how much questions there were)

Step-by-step explanation:

As a fraction, 80/100 simplifies to be 8/10. ( 10 can go into 80, 8 times and 10 can go into 100, 10 times)

So, if Brianna had 10 questions on the test and answered 80% correctly, take the numerator of this simplified fraction and that's the answer

ANSWER: 8

Brianna got 8 questions correct

Hope this helps you. Plz mark Brainliest if u want to!  :)  

Answer:

Average

Step-by-step explanation:

Mean is the average of a set of numbers that you are given.

To get the mean you need to add up all the numbers and divide that total number by the amount of numbers you had.

Hello !

Answer :

Explanation :

\( \to \boxed{ ({x}^{a}) {}^{b} = {x}^{ab} } \)

\( \to \boxed{ {x}^{ \frac{1}{n} } {}^{} = \sqrt[n]{x} } \)

\( ({x}^{4} ) {}^{ - \frac{2}{3} } = {x}^{- \frac{2}{3} \times 4} \\ \boxed{= {x}^{ - \frac{8}{3} } } \\ \boxed{= \sqrt[3]{ {x}^{ - 8} }} \\ \boxed{ = \sqrt[3]{ ({x}^{ 4}) {}^{ - 2} }}\)

Have a nice day ;)

\(\textit{volume of a cylinder}\\\\ V=\pi r^2 h~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=10\\ h=7 \end{cases}\implies V=\pi (10)^2(7)\implies \stackrel{ using~\pi =3.14 }{V=2198~cm^3}\)

The experimental probability of choosing a student who walks to school is given by 0.15625 or 15.625%.

Given data ,

The experimental probability of choosing a student who walks to school can be calculated by dividing the number of students who walk to school by the total number of students in Joe's class.

Number of students who walk to school = 5

Total number of students in the class = 32

Experimental probability = Number of students who walk to school / Total number of students

= 5 / 32

P = 0.15625

Hence , the experimental probability of choosing a student who walks is 0.15625 or 15.625%.

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This is not my answer I found it from another brainly

From the beginning we know we are dealing with two different rates. Distance is equal to (Speed X Time). We have two different speeds though. We will call the min speed = x and the max speed = y. With those two ideas in place we can make two equations for both Tony and Rae.

Tony:

2x+3.5y=355

Rae:

2x+3y=320

Now you can solve the equations by subtracting Rae's equation from Tony's

.5y=35 solve for y and you get 70

Now plug that y value back into either equation and you can solve for x. I'll use Rae's distance:

2x+3(70)=320

x=55

If lines m and n are parallel, then the value of x must be 4.

If lines m and n are parallel, then the measures of the angles in the correspondent quadrants must be the same ones.

Here we can see that the two angles are in the third quadrant, thus, these angles have the same measure. Then we can write this as:

6x² = 96

Now we can solve this for x, we will get:

x² = 96/6

x² = 16

x = √16

x = 4

That is the value of 4.

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Answer:

40............................

Answer:

The letter "x" is often used in algebra to mean an unknown value. It is often called a "variable".

Example:

In x + 5 = 12, x is a variable, but we can work out its value if we try!

Answer:

23/99

Step-by-step explanation:

nearly any number /9 or /99 or /999 etc is a repeating decimal.

Answer:

23/99

Step-by-step explanation:

9/8=1.125

23/99≈0.232

9/20=0.45

3/40=0.075

hope this helps

Step-by-step explanation:

25*.25=6.25

25 percent as a decimal is .25

multiply the last answer by 1/3 since he took 1/3 of the 25 percent

6.25 times 1/3 is 2.08

2.08 divided by the total which is 24 is .087 percent

i think

Step-by-step explanation:

you can find the answer by vertical opposite angle

if the value of x is computed and it's equal to 78 you will find the answer

78=(12x+18)^

78=(12×5+18)

78=(60+18)

78=78 the problem is solved

may u get branliest please please

The given numerical expression can be simplified as a fraction as 5/68 .

The given expression is  5/12 × 6/34

This is a multiplication of fractions.

therefore here we will multiply the numerators and divide it by the product of the denominators.

5/12 × 6/34

or , (5×6) ÷ (12×34)

or, 30 ÷ 408

or, 5 / 68

therefore the required expression is 5 / 68

Expressions are statements in mathematics that include variables, numbers, or both, as well as at least two terms connected by an operator. Addition, subtraction, multiplication, and division are examples of mathematical operations.

Expressions can be classified into two categories in mathematics: algebraic expressions, which also contain variables, and numerical expressions, which only contain numbers. It seems like a fixed amount of money.

A variable is a symbol without a known value. One constant, one variable, or a collection of variables and constants multiplied or divided can make up a term. The coefficient in an equation is a number that is further multiplied by a variable.

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