IM IN A HURRY PLEASE HELP ME QUESTION IS DOWN BELOW WORTH 15 POINTS each

Answer:

1. y=0

2. y=2

3. y=4

4. y=-2(-4)-4

=32

Answer:

y = 2x

x = 0

y = 2*0 = 0

Answer: 0

x = 1

y = 2*1 = 2

Answer: 2

x = 2

y = 2*2 = 4

Answer: 4

y = -2x - 4

x = -4

y = -2*-4  - 4 = 8 - 4 = 4

Answer: 4

Step-by-step explanation:

Functions of these are algebraic expression (f+g)(x) = x² + x-2 and             (f-g)(x) = x² + 5x - 14.  

In mathematics, a functiοn is a rule οr mapping that assοciates each element x in a set (called the dοmain) with a unique element f(x) in anοther set (called the range οr cοdοmain).Fοr example  functiοn f(x) = x² + 3x - 8.

An algebraic expressiοn is a cοntains οf variables, cοnstants, and mathematical οperatiοns such as additiοn, subtractiοn, multiplicatiοn, divisiοn, and expοnentiatiοn. It cantains  parentheses and οther grοuping symbοls tο indicate the οrder in which the οperatiοns shοuld be perfοrmed.

In the given question ,

To find (f+g)(x),

we simply add the two functions f(x) and g(x) term by term:

(f+g)(x) = f(x) + g(x)

= (x² + 3x - 8) + (-2x + 6)

= x²  + (3x - 2x) + (-8 + 6)

= x² + x - 2  

Therefore, (f+g)(x) = x² + x - 2.

To find (f-g)(x), we subtract g(x) from f(x) term by term:

(f-g)(x) = f(x) - g(x)

= (x²  + 3x - 8) - (-2x + 6)

= x²  + (3x + 2x) + (-8 - 6)

= x²  + 5x - 14  

Therefore, (f-g)(x) = x²  + 5x - 14.

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The output voltage, in millivolts (mV), for the circuit would be = 1,350 millivolts.

An amplifier is defined as the electronic device that can be used to increase the electrical signal of a power source.

The output voltage of an amplifier= input voltage × gains.

Where;

input voltage = 45 mV

The gain = 30

Therefore the output voltage= 45×30 = 1350millivolts.

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Answer:

Each gift bag contains 24 pens, 7 pencils, and 2 eraser

Step-by-step explanation:

The greatest common factor of some given numbers is the greatest number that the given numbers are divisible by it

Let us use the greatest common factor to solve the question

The factors of 144 are:

1, 2, 3, 4, 6, 9, 12,16, 24, 36, 72, 144

The factors of 42 are:

1, 2, 3, 6, 7, 14, 21, 42

The factors of 12 are:

1, 2, 3, 4, 6, 12

The common factors of 144, 42, 12 are:

1, 2, 3, 6

The greatest common factor of 144, 42, 12 is 6

∵ Suresh needs to pack 144 pens, 42 pencils, and 12 erasers into

   identical gift bags

∵ Each item is equally distributed among the gift bags

→That means the number of bags must be the greatest common factor

  of 144, 42 and 12

∵ 6 is the greatest common factor of 144, 42, 12

∴ The number of bags must be 6

∵ 144 ÷ 6 = 24

∴ Each bag contains 24 pens

∵ 42 ÷ 6 = 7

∴ Each bag contains 7 pencils

∵ 12 ÷ 6 = 2

∴ Each bag contains 2 erasers

∴ Each gift bag contains 24 pens, 7 pencils, and 2 eraser

Answer:

2/3

Step-by-step explanation:

Extending so that I can send.

Answer:

2/3

Step-by-step explanation:

Answer:

Westbound = x;

Eastbourne = x-20;

So they will have the common rate: 360/2 = 180;

x+x-20 = 180

2x = 200;

x = 100;

So Eastbourne will be 100-20 = 80 miles per an hour;

1. The x - intercepts of the parabola are

2. The meaning of the x-intercepts are the plane takes of at x = 2.5 s and lands at x = 7.5 s

3. The vertex of the parabola is at (5, 80).

A parabola is a curved shape

1. Given the parabola above, to find the x - intercepts, we proceed as follows.

The x-intercepts are the points at which the graph cuts the x-axis.

They are

2. The meaning of the x-intercepts in this problem are the points where the plane takes off and lands on the ground.

The plane takes of at x = 2.5 s and lands at x = 7.5 s

3. The vertex is the maximum point on the graph.

So, we see that the vertex is at x = 5 s and y = 80 ft

So, the vertex is at (5, 80).

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Answer:

This answer is not solveable

Step-by-step explanation:

If N is 1, then it will be 7 = 3. There is no number on this universe that can equal to 7 = 7 or 3= 3

Answer:

2x = (1/2)(26) - 1

The number is 6.

Step-by-step explanation:

2x = (1/2)(26) - 1

2x = 13 - 1

2x = 12

x = 6

Answer:

1. 50 = 5x+15

2. 50 = 3x+20

3. 7

4. 10

5. Skating Rink

Step-by-step explanation:

1. As the maximum amount of money is 50 dollars, you are given that there is a 5 dollar entry *per* person, alongside the 15 room rental fee added on. That is where the equation 5x+15 = 50 comes from

2. The same can be said with the skating rink, with different numbers. 3 *per* person plus the extra 20 room rental fee.

3. 50 = 5x+15 can be solved by subtracting 15 by both sides. This gives us 35=5x and dividing by 5 will give us 7 = x

4. 50 = 3x+20 can be solved by subtracting 20 by both sides. This gives us 30=3x and dividing by 3 will give us 10 = x

5. As 10>7, it's apparent that you can bring more people to the Skating Rink

For the party, at the skating rink, more people can be invited than at the bowling alley.

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

here,
1.
According to the question,
Expression ⇒ 5x + 15 = 50

2.
According to the question,
Expression ⇒ 3x + 20= 50

3

For bowling alleys,
5x + 15 = 50

x = 7 people

4.
For the skating rink,
3x + 20 = 50
x = 10 people

5.
At the skating rink, more people can be invited.

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The radius of the gear should be approximately 2.8644 inches.It is important to note that when making calculations involving units, we need to make sure that all units are consistent and convert them when necessary. In this case, we converted the answer from feet to inches to match the given unit.

To find the radius of the gear that will pull a chain at 60 ft/min when rotating at 40 rev/min, we can use the formula:

chain speed = 2 x pi x radius x rotational speed

where pi is a mathematical constant approximately equal to 3.14.

We know that the chain speed is 60 ft/min and the rotational speed is 40 rev/min, so we can substitute those values into the formula:

60 = 2 x 3.14 x radius x 40

Simplifying the equation, we get:

radius = 60 / (2 x 3.14 x 40)

radius = 0.2387 ft

To convert feet to inches, we can multiply the answer by 12:

radius = 0.2387 x 12 = 2.8644 inches.

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Answer:

-235+84i

Step-by-step explanation:

I hope this is what you were looking for.

Answer:

Step-by-step explanation:

The correct function to approximate the number of bees in the hive after x years is,

⇒ y (x) = 8928.57 (1.12)ˣ

Since, We have to given that;

Ellie is the agricultural manager of Apple a Day Orchards.

And, boost pollination, she puts a beehive with about 10,000 bees on the property.

Since, She expects the bee population to increase by 12% each year.

Hence, We can formulate;

the number of bees in the hive after x years is,

⇒ y (x) = 10,000 (1 + 0.12)ˣ⁻¹

⇒ y (x) = 10,000 (1.12)ˣ⁻¹

⇒ y (x) = 10,000 (1.12)ˣ / 1.12

⇒ y (x) = 8928.57 (1.12)ˣ

Thus, The correct function to approximate the number of bees in the hive after x years is,

⇒ y (x) = 8928.57 (1.12)ˣ

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Answer:

green line or "b"

Step-by-step explanation:

we can set this up into the slope intercept form

y=mx+b

where m is the slope and b is y intercept

12=3x+4y

-3x -3x

-3x+12=4y

/4.  /4.  /4

-3/4x+3=y

we can see the only line with a negative slope and a y intercept at 3 is the green line or "b"

hopes this helps please mark rainliest

Answer:

1 answer

Answer:lower bound = 147.5gupper bound = 152.5gStep-by-step explanation:if you were rounding a single digit number to the nearest 5, ...

Step-by-step explanation:

The probability of observing no positive reading if all suspects are telling the truth is d. 0.59. Probability theory is a branch of mathematics that is used to model and analyze random events.

Probability can be used to predict the likelihood of different outcomes in a wide range of situations, from games of chance to scientific experiments to everyday events. Probability is a measure of the likelihood of an event occurring. It is expressed as a number between 0 and 1, with 0 indicating that an event is impossible and 1 indicating that an event is certain.

To solve this problem, we need to calculate the probability of observing no positive readings given that all suspects are telling the truth, which is equal to the probability that all 5 suspects receive a negative reading on the lie detector test. Since the lie detector will show a positive reading 10% of the time when a person is telling the truth, the probability that a suspect will receive a negative reading when telling the truth is 1 - 10% = 90%. Therefore, the probability that all 5 suspects will receive a negative reading when telling the truth is:

(90%)^5 = (0.9)^5 = 0.59049.

The correct answer is therefore (d) 0.59.

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Answer:

60

Step-by-step explanation:

To begin, we can look at combinations and permutations. A permutation or combination is when we need to find how many possibilities there are to choose a certain amount of objects (in this case, candidates) given an array of options (members on the board)

Combinations are when the order doesn't matter, and permutations are when the order does matter. Here, we know that we care whether someone is chairperson or secretary. If we were to just choose three for an "elite" board, and there were no specific positions in the board, then order would not matter. However, because it does matter which person gets which role, order does matter.

Assuming that someone cannot have more than one role, we know that this is a permutation without repetition. The formula for this is

(n!) / (n-r)!, where we have to choose from n number of people and choose r number of people. We have 5 members to choose from, and 3 people to choose, making our equation

(5!) / (5-3)! = 120 / 2! = 120/2 = 60

Hey there!

8x + 1 + 7x + 4

COMBINE your LIKE TERMS

(8x + 7x) + (1 + 4)

8x + 7x = 15x

1 + 4 = 5

Answer: 15x + 5 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

Answer:

15 + 5x

Step-by-step explanation:

8x + 1 + 7x + 4

All that you need to do is combine like terms which means that you need to put together (either add or subtract) the numbers that are similar...so the numbers with the numbers, and the variables with the variables...

8x + 7x and 1 + 4

15x + 5

And you cannot do anything else because it is in its simplest form.

Hope this helped!

Have a supercalifragilisticexpialidocious day!

To assure the random selection of a sample population for determining the percentage of students who bring their lunch to school, a method known as simple random sampling can be employed.

Simple random sampling is a technique that provides each member of the population an equal chance of being selected for the sample. Here's an explanation of how simple random sampling can be implemented in this scenario:

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Answer:

A.

75 + (8) (49.99) + (4) (59.99)

Step-by-step explanation:

Answer:

32/5

Hope you have a good day, Loves!~ <3

Answer: 6u2/5 or 6 2/5

Step-by-step explanation:

The final answer is (f o g)(x) = x^4 - 16x^2 + 72

(g o f)(x) = x^4 + 16x^2 + 56

(f o g)(2) = 24

To find the composite functions (f o g)(x) and (g o f)(x), we need to substitute one function into the other.

(f o g)(x):

To find (f o g)(x), we substitute g(x) into f(x):

(f o g)(x) = f(g(x))

Let's substitute g(x) = x^2 - 8 into f(x) = x^2 + 8:

(f o g)(x) = f(g(x)) = f(x^2 - 8)

Now we replace x in f(x^2 - 8) with x^2 - 8:

(f o g)(x) = (x^2 - 8)^2 + 8

Simplifying further:

(f o g)(x) = x^4 - 16x^2 + 64 + 8

(f o g)(x) = x^4 - 16x^2 + 72

Therefore, (f o g)(x) = x^4 - 16x^2 + 72.

(g o f)(x):

To find (g o f)(x), we substitute f(x) into g(x):

(g o f)(x) = g(f(x))

Let's substitute f(x) = x^2 + 8 into g(x) = x^2 - 8:

(g o f)(x) = g(f(x)) = g(x^2 + 8)

Now we replace x in g(x^2 + 8) with x^2 + 8:

(g o f)(x) = (x^2 + 8)^2 - 8

Simplifying further:

(g o f)(x) = x^4 + 16x^2 + 64 - 8

(g o f)(x) = x^4 + 16x^2 + 56

Therefore, (g o f)(x) = x^4 + 16x^2 + 56.

(f o g)(2):

To find (f o g)(2), we substitute x = 2 into the expression (f o g)(x) = x^4 - 16x^2 + 72:

(f o g)(2) = 2^4 - 16(2)^2 + 72

(f o g)(2) = 16 - 64 + 72

(f o g)(2) = 24

Therefore, (f o g)(2) = 24.

In summary:

(f o g)(x) = x^4 - 16x^2 + 72

(g o f)(x) = x^4 + 16x^2 + 56

(f o g)(2) = 24

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Answer:

2 5/8 cups of flour

Step-by-step explanation:

Use a proportion.

1 3/4 cups of flour is to 2/3 of a batch as x cups of flour is to 1 batch.

1 3/4 : 2/3 = x : 1

2/3 x = 1 3/4 * 1

2/3 x = 1 3/4

2/3 x = 7/4

3/2 * 2/3 x = 3/2 * 7/4

x = 21/8

x = 2 5/8

Answer: 2 5/8 cups of flour

Answer:

6x+6x2+3

Step-by-step explanation:

6x2+5x+1+x+2

Combine 5x and x to get 6x.

6x2+6x+1+2

Add 1 and 2 to get 3.

6x2+6x+3

Answer:

The null hypothesis is  \(H_o: \mu_1 = \mu_2\)

The  alternative hypothesis is  \(H_1 : \mu_1 \ne \mu_2\)

The test statistics is  \(t = -1.667\)

Step-by-step explanation:

From the question we are told that

  The first sample size is  \(n_1 = 12\)

   The  first sample  mean is  \(\= x_1 = 79.8\)

    The first standard deviation is  \(\sigma _1 = 8.8\)

   The second sample  size is  \(n_2 = 17\)

    The  second  sample  mean is  \(\= x_2 = 85.2\)

    The second  standard deviation is  \(\sigma _2 = 8.3\)

The null hypothesis is  \(H_o: \mu_1 = \mu_2\)

The  alternative hypothesis is  \(H_1 : \mu_1 \ne \mu_2\)

Generally the test statistics is  mathematically represented as  

                 \(t = \frac{\= x_ 1 - \= x_2 }{ \sqrt{ \frac{\sigma_1^2 }{n_1 } +\frac{\sigma_2^2 }{n_2} } }\)

   =>          \(t = \frac{ 79.8 - 85.2 }{ \sqrt{ \frac{8.8^2 }{12} +\frac{ 8.3^2 }{17} } }\)

=>                \(t = -1.667\)

Based on the given information, the value of y is 5.

What is a cyclic polygon?

A cyclic polygon is a polygon that can be inscribed inside a circle in such a way that all of its vertices lie on the circumference of the circle. In other words, a cyclic polygon is a polygon that can be circumscribed by a circle.

In a polygon with n sides, the sum of its interior angles is given by the formula: (n - 2) * 180 degrees. Since this polygon is inside a circle, it must be a cyclic polygon, which means that its opposite angles add up to 180 degrees.

We are given that the opposite angles are 23y and 13y, so we can write:

23y + 13y = 180

36y = 180

y = 5

Therefore, the value of y is 5.

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