Help please I will give brainliest

Answer:

AC with endpoints at A(1; -1) and C(5; 3)

The correct option is (C) The graph of Function g is a transformation of the parent cosine function such that g(x) = 3 cos(x + 2) + 1 as it the graph of cosine function.

The ratio between the adjacent side and the hypotenuse is known as the cosine function (or cos function) in triangles. One of the three primary trigonometric functions, cosine is the complement of sine (co+sine) and one of the three main trigonometric functions.

A graph is a structure that resembles a set of objects in mathematics, more specifically in graph theory, in which some pairs of the objects are conceptually "related." The objects are represented by mathematical abstractions known as vertices, and each pair of connected vertices is referred to as an edge.

Option (C) gives a graph of the parent cosine function is transformed into function g such that g(x) = 3 cos(x + 2) + 1 on the cosine function graph.

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Answer:

see photo

be sure to look closely, the top curves go to 4 and the bottom goes to -2, there are 2 with this same shape but the other one does not go high enough.

Step-by-step explanation:

Plato/Edmentum

Therefore, the value of n that makes the system of equations true is n = 10.

Given:

p = 2n

p - 5 = 1.5n

Substituting the value of p from the first equation into the second equation, we have:

2n - 5 = 1.5n

Next, we can solve for n by subtracting 1.5n from both sides of the equation:

2n - 1.5n - 5 = 0.5n - 5

Simplifying further:

0.5n - 5 = 0

Adding 5 to both sides of the equation:

0.5n = 5

Dividing both sides by 0.5:

n = 10

Therefore, the value of n that makes the system of equations true is n = 10.

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The equation which represents the relationship between 'h' the number of hours, and c, the total cost is y = 250x+850.

A straight line equation is a mathematical equation that describes the relationship between the coordinate points on that straight line. It can be written in several ways and indicates the slope, x-intercept, & y-intercept of a line.

Now, as per the given question;

The attorney charges price for an initial meeting = $850.

And, the charges for each hour is = $250.

Thus, the equation which shows the given situation is-

y = 250x + 850.

In which, 250 is the value of the slope 'm'.

The y- intercept is shown by 850.

Thus, the total cost will be found out by equation  y = 250x+850.

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The solution of the system of equations graphed is (0, 3)

When we have the graph of a system of equations, to find the solution we need to find the point where the graphs intercept. That point will be the solution.

In this case, we can see that the two lines intercept at (0, 3), so that is the solution of the system of linear equations.

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Sure! Here's a system of equations that has a solution of (-2, 4):

Equation 1:

2x - y = -10

Equation 2:

3x + 2y = -2

This system of equations has a solution of (-2, 4) because when we substitute x = -2 and y = 4 into both equations, we get:

Equation 1:

2(-2) - 4 = -10

-4 - 4 = -10

-8 = -10 (True)

Equation 2:

3(-2) + 2(4) = -2

-6 + 8 = -2

2 = -2 (False)

The solution (-2, 4) satisfies Equation 1 but does not satisfy Equation 2. However, since the question only asked for a system of equations with the given solution, this system meets that requirement.

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Hello!

\(\large\boxed{f^{-1} = \frac{5x+2}{4x-2}, f^{-1}(3) = \frac{17}{10} }\)

\(f(x) = \frac{2x +2}{4x - 5}\)

Find the inverse by swapping the x and y variables:

\(y = \frac{2x +2}{4x - 5}\\\\x = \frac{2y +2}{4y - 5}\)

Begin simplifying. Multiply both sides by 4y - 5:

\(x(4y - 5) = 2y + 2\)

Start isolating for y by subtracting 2 from both sides:

\(x(4y - 5) -2 = 2y\)

Distribute x:

\(4yx - 5x - 2 = 2y\)

Move the term involving y (4yx) over to the other side:

\(- 5x - 2 = 2y - 4yx\\\\\)

Factor out y and divide:

\(- 5x - 2 = y(2 - 4x)\\\\y = \frac{-5x-2}{-4x+2} \\\\y = \frac{-(5x + 2)}{-(4x - 2)} \\\\y^{-1} = \frac{5x + 2}{4x - 2}\)

Use this equation to evaluate \(f^{-1}(3)\)

\(f^{-1}(3) = \frac{5(3) + 2}{4(3) - 2} = \frac{17}{10}\)

the correct answer is option a: 10/3, which represents the mean and standard deviation of the scaled scores on the WISC-V.

Scaled scores are used to compare an individual's performance on the WISC-V to the performance of other individuals in the same age group. The scaled scores are derived from raw scores and are standardized to have a mean and standard deviation that are predetermined.The mean of scaled scores on the WISC-V is set to 10. This means that an average performance is represented by a scaled score of 10.

The standard deviation of scaled scores on the WISC-V is set to 3. The standard deviation measures the spread or variability of scores around the mean. A standard deviation of 3 indicates that most scores fall within 3 points above or below the mean of 10.

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Answer:

No

Step-by-step explanation:

Does (3, 7) satisfy the first equation, y = -4x - 5?  Is 7 = -4(3) - 5 true?  NO.  Thus, (3, 7) cannot be a solution of the system

y=-4x-5

y=3x-2

The given point (3, 7) is not the solution in the given case.

A system of linear equations can be defined as a number of equations needed to solve the equations. For n number of variables n number of equations are required.

Given equations are as follows,

y = -4x - 5                                (1)

y = 3x - 2                                 (2)

In order to find whether (3,7) is the solution for them, substitute x = 3 and y = 7 in both the equations and check the LHS and RHS of both.

For equation (1),

y = -4x - 5  

LHS is y  = 7

RHS = -4x - 5

       = -4 × 3 - 5

       = -17

Since, LHS ≠ RHS, the given values of x and y are not the solution for the given equation.

Now, equation(2) need not to be checked as the result for the given values is already not valid for equation(1).

Hence, the given coordinate  (3,7) is not the solution for the given equations.

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Answer:

 55°

Step-by-step explanation:

Answer:

Three Hundred Seventy-Five Million Dollars

Step-by-step explanation:

Answer:

previous speed of the aeroplane is 500 km/hr

Step-by-step explanation:

Given: Distance covered by  aeroplane = 1500 km

It covers the same distance in a time which is half an hour less than the previous time if the speed is increased by 100 km/hr

To find: previous speed of the aeroplane

Solution:

Let x denotes the previous speed of the aeroplane.

Time taken by an aeroplane if speed is x km/hr = distance/speed = \(\frac{1500}{x}\) hours

If speed is increased by 100 km/hr, new speed = (x + 100) km/hr

Time taken by an aeroplane if speed is (x + 100) km/hr = \(\frac{1500}{x+100}\) hours

According to question,

\(\frac{1500}{x+100}=\frac{1500}{x}-\frac{1}{2}\\ \frac{1500}{x}-\frac{1500}{x+100}=\frac{1}{2} \\\frac{1}{x}-\frac{1}{x+100}=\frac{1}{3000}\\ \frac{x+100-x}{x(x+100)}=\frac{1}{3000}\\ x^2+100x=300000\\x^2+100x-300000=0\\\)

\(x^2+600x-500x-300000=0\\x(x+600)-500(x+600)=0\\(x-500)(x+600)=0\\x=500\,,\,-600\)

As speed can not be negative, \(x=-600\) is rejected.

So,

previous speed of the aeroplane is 500 km/hr

The most reasonable domain of the function C = 4ⁿ is all positive integers, which is answer choice (c) i.e. all whole numbers .

A function is a mathematical object that takes one or more inputs, performs a specified operation on them, and produces an output.

The inputs to a function are called the domain, and the outputs are called the range.

An equation, a graph, or a table can all be used to depict a function.

The function that represents the number of new coins the jester receives on the n-th day after January 1 is given by C = 4ⁿ.

Since n represents the number of days after January 1, it is most reasonable to assume that n is a positive integer, because it doesn't make sense to talk about a negative or fractional number of days in this context.

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The complete question is given below.

Answer:

a) 20 students

b) 20 students

Step-by-step explanation:

a) From the given frequency table, we have to check the number of students that scored above 73.5 and add them up.

Therefore, the number of students that have grades above 73.5 are:

14 + 4 + 2 = 20 students

b) 75 falls in between 74 - 76 and we do not have the individual frequencies of the grades (74, 75, 76).

However, we can use the data we have from the table to make an assumption.

The number of students that have grades below 75 will be:

13 + 5 + 2 = 20 students

Answer:

Yes, probability  (purple or red)=3/4

Step-by-step explanation:

12 beads

2 blue; 1 green; 3 purple => red=12-(2+1+3)=6

probability  (purple or red)=(3+6)/12=9/12=3/4

Answer:

C should be correct.

Step-by-step explanation:

hope this helps

Let's start by finding out how much money Keiko spent on coffee. She started with an $80 gift card and ended up with $43.15 left, so she spent:

$80 - $43.15 = $36.85

We also know that the coffee costs $7.37 per pound. Let's use "x" to represent the number of pounds of coffee Keiko bought. Then we can set up an equation:

$7.37x = $36.85

To solve for x, we can divide both sides by $7.37:

x = $36.85 ÷ $7.37

x = 5

So Keiko bought 5 pounds of coffee.

Answer:

41.8% is the answer

Step-by-step explanation:

Trust me

Answer:

3b/2 + 3

Step-by-step explanation:

The formula to calculate perimeter of rectangle is 2l + 2w

The length is half the width so length is 1/2 (b/2 +1), which when simplified is b/4 + 1/2

Using the formula to calculate perimeter you can substitute and calculate

p= 2l + 2w

p= 2(b/4 + 1/2) + 2(b/2 + 1)

p= 2b/4 +2/2 + 2b/2 +2

p= 1/2b + 1 + b + 2

p= 3/2b + 3

Simplified it's 3b/2 +3

Answer Hi! you would do 15.34- 5.75

so do 75-34 =  41 and then 15- 5 = 10 so your anwser is -10.41 MAKE SURE ITS NEGTIVE

Step-by-step explanation:

The solution to the equation 4x² - 20 = 0 is x = ±√5.

To solve the equation 4x² - 20 = 0 by finding square roots, you can follow these steps:
1. Add 20 to both sides of the equation to isolate the squared term: 4x² = 20.
2. Divide both sides of the equation by 4 to isolate the x² term: x² = 5.
3. Take the square root of both sides of the equation to solve for x: √(x²) = √5.

4. Remember that the square root of x² is equal to the absolute value of x: |x| = √5.
5. Solve for x by taking the positive and negative square roots of 5: x = ±√5.
Therefore, the solution to the equation 4x² - 20 = 0 is x = ±√5.

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22. l = 12m

b = 10m

Perimeter = 2(l + b)

= 2(12 + 10)

= 24 + 20

= 44m

Area = l×b

= 12 × 10

= 120m²

(a) Fencing required = 44m

Cost per metre = $12

Cost for the fencing of 44m = 12 × 44

= $528

(b) Levelling required = 120m²

Cost per metre² = $50

Cost for the levelling of 120m² = 120 × 50

= $6000

Answer:

1503

Step-by-step explanation:

1803 - 300

Explanation:

Replace x with 7 and simplify to get 8+x = 8+7 = 15

Answer:

If x=7, 8+7=15.

Step-by-step explanation:

x=7

8+(7)

=15

The two ways she could change the length and/or width are;

The new area of the pen would be; 90ft²

The dimension of the pen given is;

Hence, the initial area of the pen is;

Hence, to make the pen four times it's present area; Krista may multiply either of the length or width by a factor of 4.

And hence, the new area is; 22.5 × 4 = 90ft²

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Answer:

A. -63 is not a solution, B. 72 is a solution, C. 0 is a solution, D. 18 is not a solution.

Step-by-step explanation:

a. The encrypted message "AN APPLE A DAY" using the Caesar cipher is "DR DSSOH D GDB".

b. The decrypted message "NHHSV WKH GRFWRU DZDB" using the Caesar cipher is "MEET THE ENGINEER BILL".

The Caesar cipher is a substitution cipher where each letter in the plaintext is shifted a certain number of positions down or up the alphabet. In the case of encryption, the letters are shifted forward, while in decryption, the letters are shifted backward. The number of positions to shift is known as the key.

For the encryption in (a), each letter in the message "AN APPLE A DAY" is shifted three positions forward in the alphabet, resulting in "DR DSSOH D GDB".

For the decryption in (b), each letter in the message "NHHSV WKH GRFWRU DZDB" is shifted one position backward in the alphabet, resulting in "MEET THE ENGINEER BILL".

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The probability of randomly selecting a score that is more than 2 standard deviations below the mean is B: .025. In a normal distribution, approximately 95% of the data falls within two standard deviations of the mean.

This means that there is only a small percentage (5%) of the data that falls beyond two standard deviations from the mean.
When selecting a score that is more than 2 standard deviations below the mean, we are looking for the area under the curve that falls beyond two standard deviations below the mean. This area is equal to approximately 2.5% of the total area under the curve, or a probability of .025.
To calculate this probability, we can use a z-score table or a calculator with a normal distribution function. The z-score for a score that is 2 standard deviations below the mean is -2. Using the z-score table, we can find the corresponding area under the curve to be approximately .0228. Since we are interested in the area beyond this point (i.e., the tail), we subtract this value from 1 to get .9772, which is approximately .025.

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