i’m desperate. giving 15 pts plus a brainliest rating. thank you.

Are the two triangles similar? How do you know?

Answer:

The transformation f(x)↦f(-x) , the graph of f(x) reflects it across the y-axis

Step-by-step explanation:

I'm not 100% sure but I think it's the last two choices

sorry if its wrong

Answer:

C

Step-by-step explanation:

the circumference of a circle is

2×pi×r

r being the radius, which is half of the diameter.

in our case

r = 18/2 = 9 mm

so, the circumference is

2×3.14×9 = 18×3.14 = 56.52 mm

ochala bought a music system on hire purchase. He paid a total of sh 5,200 .if he started by paying a deposit of sh 2,300 for how many months did he pay the remaining money if each monthly installment was sh 2,900

Answer:

A

Step-by-step explanation:

Answer:

The answer is D or 32oz for $3.00

Step-by-step explanation:

You're trying to find how much it cost for just 1 ounce so divide the price by the ounces:

a. $ 1.25 ÷ 12 =  $ .104 per ounce

b. $ 1.65 ÷ 16 = $ .103 per ounce

c. $ 2.15 ÷ 20 = $ .1075 per ounce

d. $ 3.00 ÷ 32 = $ .09375 per ounce

Option D is the cheapest per ounce of all four choices!

Hope this helped

Descriptive statistics is a branch of statistics that deals with the collection, analysis, interpretation, and presentation of data. It focuses on summarizing and describing the characteristics of a sample or population. The purpose of descriptive statistics is to provide a clear and concise summary of the data, including measures of central tendency, variability, and distribution.

True,This information can be used to make inferences about the population as a whole. Therefore, descriptive statistics helps statisticians to better understand and interpret the population data.

False, Descriptive statistics is a branch of statistics that focuses on summarizing and organizing data from a sample or population. It provides insights into the basic features of the data, such as the mean, median, and standard deviation, but does not make inferences about the population.

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So to find any last digit of 3^2011 divide 2011 by 4 which comes to have 3 as remainder. Hence the number in units place is same as digit in units place of number 3^3. Hence answer is 7.

☆ The relation between x and y is y = a cos x° +b

Taking 1st condition from the table .

→ x = 0 and y = 9

→ y = a + cos 0° + b

→ 9 = a + cos 0° + b

☆ We know that cos 0° = 1

→ 9 = a(1) + b

Now taking other condition

→ x = 90° and y = 1

→ y = a cos 90° + b

→ 1 = a cos 90° + b

☆ We know that cos 90° is 0

→ 1 = a(0) + b

Putting the value of b in equation 1st .

→ 9 = a + 1

→ a = 8 .

Now taking the value of x according to the question .

☆ x = 45 °

→ y = 8 ( cos 45°) + 1

☆ We know that cos 45° is 1/√2

→ y = 8(1/√2) + 1

→ 8 = 4×√2×√2

So the answer is 4√2+1

Therefore , the given expression of this problem of square root

 2√2  not equal to √2.

The value that results from multiplying the square root of an integer by itself is the number.

Example: Since 5* 5 = 25, 5 is the square root of 25. Observe that (5) (5) also equals 25, proving that (5) is a square root of 25.

Here,

In this case, the mathematical symbol for Root 2 is 2.

Root 2 then multiplied by Root 2.

√2 + √2 = 2√2

If we take the estimated value of 2 = 1.4142

Then

=> 2√2 = 1.4142 x 2

=> 2.8284 (approximately)

Please take note that 2 is an irrational number.

Alternatively, root2* root 2

√2 * √2 = 2

Because 2 is just the square root of 2,

Therefore,

what happens when root 2 + root 2 and root2 root 2 are different

2√2 - 2 = 2.8284 - 2 = 0.8284 (approx)

Therefore , the given expression of this problem of square root

 2√2  not equal to √2.'

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A polynomial is described as a set of mathematical phrases with numerical coefficients, variables, and operations between them. The variables' degree must be a non-negative integer (addition, subtraction, multiplication and division).

A polynomial example could be-

\(\mathrm{p}(\mathrm{x})=2 x^{3-3(x+y)+7 / 5}\)

A mathematical notion known as an equation is one in which two quantities are equal and are indicated by the symbol "=" in between.

An illustration of an equation is

\(3 x-5 y=(7 x+9) / 5\)

In contrast to polynomials, equations have no limits on the coefficients or the powers of the variables.

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A polynomial is described as a set of mathematical phrases with numerical coefficients, variables, and operations between them.

The variables' degree must be a non-negative integer (addition, subtraction, multiplication and division).

A polynomial example could be-

p(x) =³

A mathematical notion known as an equation is one in which two quantities are equal and are indicated by the symbol "=" in between.

An illustration of an equation is

In contrast to polynomials, equations have no limits on the coefficients or the powers of the variables.

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Answer:

Consecutive Interior

Scheduling court hearings is a linear optimization problem with judge hours and available hours as constraints. The given set of vectors form a basis for R³ and the matrices have rank 3.

1. a) The linear program for scheduling court hearings can be formulated as follows:

Minimize Z = 0

Subject to:

∑_j (x_ij) * (h_i) <= (Δ_j) for all i = 1,2,...,n

x_ij >= 0 for all i = 1,2,...,n and j = 1,2,...,m

Where x_ij is the number of hearings of class i processed at period j, h_i is the number of judge-hours required to process a hearing of class i, and Δ_j is the available judge-hours at period j.

b) To prevent hearings from being delayed for too long, the linear program can be modified by adding a constraint that ensures that the number of hearings of class i processed at each period is at least a minimum value. For example:

x_ij >= minimum value for all i = 1,2,...,n and j = 1,2,...,m

2. a) The vectors ???? = (1 2 1), ???? = (-1 0 -1), ???? = (0 0 1) form a basis of R^3 because they are linearly independent and span the entire space R^3.

b) The vectors ???? = (-1 2 3), ???? = (0 1 0), ???? = (1 2 3), ???? = (-3 2 4) form a basis of R^3 because they are linearly independent and span the entire space R^3.

c) The vectors ???? = (1 2 1), ???? = (-3 -1 2), ???? = (8 -1 7) form a basis of R^3 because they are linearly independent and span the entire space R^3.

3. The vectors ???? = (1 0 0), ???? = (0 1 0), ???? = (1 5 3) form a basis of R^3. If ???? is replaced by (0 1 1), the new set of vectors do not form a basis of R^3 because they are linearly dependent.

4. The rank of a matrix is the number of linearly independent rows or columns. The rank of a matrix is equal to the number of non-zero rows in the row echelon form of the matrix or the number of non-zero columns in the column echelon form of the matrix. By inspection, the rank of the matrices is 3, which is the number of non-zero rows or columns in either form.

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Answer:

Write more compactly about functional relationships such as, “If you sell x tickets, then your profit will be ... Jason goes to an amusement park where he pays $8 admission and $2 per ride.

Answer:

Step-by-step explanation:

if you expand or reduce a triangle the angles remain the same, but the sides can increase or decrease, therefore "infinite"

The part in the steering column that allows for changes in the angle between the upper and lower shafts is the universal joint.

The universal joint, also known as a U-joint or Cardan joint, is a mechanical device that enables changes in the angle between two shafts that are not in a straight line. In the context of a steering column, the upper and lower shafts are connected by a universal joint.

As the steering wheel is turned, it exerts rotational force on the upper shaft of the steering column. The universal joint allows for the transmission of this rotational motion while accommodating changes in the angle between the upper and lower shafts. It provides flexibility and compensates for any misalignment between the two shafts, ensuring smooth and continuous rotation of the steering column.

The universal joint typically consists of two yokes connected by a cross-shaped component with needle bearings. These bearings allow for rotation in multiple axes, allowing the steering column to handle variations in the angle between the upper and lower shafts during steering movements.

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Answer:

Number 5e9, five thousand million

The probability of outcome O5 is not given in the information provided. Therefore, the correct option is not included in the answer choices provided.

In the given information, probabilities are provided for four outcomes: O1, O2, O3, and O4. The probability of outcome O5 is not specified, so we cannot determine its value based on the information given. As a result, none of the answer choices accurately represents the probability of O5.

Regarding the requirement of probabilities assigned to outcomes, the correct option is C: 0 ≤ P(Oi) ≤ 1 for each i. This requirement states that the probability assigned to each outcome must be between 0 and 1 (inclusive). Probabilities cannot be negative or greater than 1. Each probability represents the likelihood of a particular outcome occurring, and it must fall within the range of 0 to 1 to be valid.

Therefore, the requirement for probabilities assigned to the outcomes is that they must be between 0 and 1, inclusively, for each outcome.

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To find the equation of the parabola passing through the given points (3, 4), (-2, 9), and (2, 1), we can use the general form of a parabolic equation, which is y = ax² + bx + c.

By substituting the coordinates of the points into this equation, we can form a system of equations to solve for the coefficients a, b, and c. Using the point (3, 4), we get the equation 4 = 9a + 3b + c. From the point (-2, 9), we have 9 = 4a - 2b + c. Lastly, using the point (2, 1), we obtain 1 = 4a + 2b + c. This gives us a system of three linear equations.

By solving this system of equations, we find that a = -1/5, b = -9/5, and c = 18/5. Substituting these values back into the general form of the parabolic equation, we have y = (-1/5)x² - (9/5)x + (18/5). To express the equation in standard form, we need to remove fractions and put the equation in the form of ax² + bx + c = 0. By multiplying through by 5 to eliminate the fractions, we get -x² - 9x + 18 = 0.

Therefore, the equation of the parabola passing through the given points (3, 4), (-2, 9), and (2, 1) is -x² - 9x + 18 = 0, written in standard form.

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Answer:

ST (given)

Step-by-step explanation:

Answer:

80% of the fish in the school pond are goldfish.

Step-by-step explanation:

To find the percentage of goldfish in the pond, we need to divide the number of goldfish by the total number of fish and multiply by 100.

percent of goldfish = (number of goldfish / total number of fish) x 100%

So, in this case:

percent of goldfish = (296 / 370) x 100%

percent of goldfish = 0.8 x 100%

percent of goldfish = 80%

Answer:

17

Step-by-step explanation:

Set up a ratio and solve

(4x + 12) / 192 = 70 / 168

(4x + 12) * 168 = 192 * 70

672x + 2016 = 13440

672x = 11424

x = 17

If the sum of squares for error (SSE) is 40 and the sum of squares due to the model (SSM) is 60, therefore, the answer is (c) 0.60.

Based on your question,  the coefficient of determination (R²) for a simple linear regression, given the sum of squares for error (SSE) is 40 and the sum of squares due to the model (SSM) is 60.

To calculate R², follow these steps:

1. Calculate the total sum of squares (SST): SST = SSE + SSM
2. Divide SSM by SST: R² = SSM / SST

Now, let's apply the values from your question:
To calculate, we use the formula:
= SSM / SSM + SSE)

Plugging in the given values, we get:
= 60 / (60 + 40) = 0.6
SST = SSE + SSM = 40 + 60 = 100
R² = SSM / SST = 60 / 100 = 0.60

So, the coefficient of determination (R²) is 0.60, which corresponds to option (c).

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Answer: 21,23,25,27

Step-by-step explanation:

21+23+25+27=96

96/4=24

Answer:

So the only correct answer is choice B (27) and it's reasonable since 27 is close to the average (24).

Answer:

4665 approx

Step-by-step explanation:

Given data

Total number of crashes=  16,370 automobile crashes

Percentage caused by distraction =28.5%

Let us find the number of crashes caused by distraction

=28.5/100* 16,370

=0.285* 16,370

=4665.45

Hence the number of crashes caused by distraction is 4665 approx

The inequality that represents Rita saving money from the second option is 0.059x < 0.49 + 0.019x

"Information available from the question"

In the question:

1. Pay $0. 49, plus an additional $0. 019 per minute.

2. Pay $0. 059 per minute.

Now, According to the question:

How to determine the inequality that represents the statement?

We have the following parameters that can be used in our computation:

1. Pay $0.49, plus an additional $0.019 per minute.

2. Pay $0.059 per minute.

These statements can be represented as

Option 1: y = 0.49 + 0.019x

Option 2: y = 0.059x

Where y is the total amount and x is the number of minutes

When she saves money, we have

Option 2 < Option 1

Substitute the known values in the above equation, so, we have the following representation

0.059x < 0.49 + 0.019x.

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Answer:

the answers for the quick check:

Step-by-step explanation:

1. d. spiral

2. b stars

3. d. meteors

4. d. as it gets closer to the sun

“Shooting Stars” that streak across the sky in a brief flash of light is Option b) Meteors.

"Shooting stars" are captivating phenomena seen in the night sky. They are commonly mistaken for stars, but they are not stars at all.

Shooting stars, or meteors, are not celestial bodies themselves, but rather the luminous trails created when small space rocks, known as meteoroids, enter Earth's atmosphere at high speeds.

These meteoroids are remnants from comets or asteroids.

When a meteoroid collides with Earth's atmosphere, friction causes it to heat up rapidly.

This intense heat causes the meteoroid to vaporize in a brilliant flash of light, leaving behind a streak across the sky.

This streak is what we commonly refer to as a shooting star or meteor.

Comets, denoted by option (a), are icy bodies that originate from the outer regions of the solar system.

They can produce meteoroids, which in turn create meteors when they enter Earth's atmosphere. However, comets themselves are not what we see as shooting stars.

Meteoroids, as mentioned in option (c), are the actual rocky or metallic fragments that create meteors.

When a meteoroid survives its fiery passage through the atmosphere and lands on Earth's surface, it is referred to as a meteorite, as stated in option (d).

In summary, shooting stars, or meteors, are the dazzling result of meteoroids burning up as they speed through Earth's atmosphere. This captivating display is a reminder of the continuous cosmic activity surrounding our planet, turning the night sky into a canvas of transient and awe-inspiring light shows.

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NOTE: This not a Question of Mathematics, this is a Question from Physics

Complete Question

Choose the correct answer from the given options:

What can be described as “shooting stars” that streak across the sky in a brief flash of light?

a) Comets

b) Meteors

c) Meteoroids

d) Meteorites

Answer:

1/3

Step-by-step explanation:

you have to subtract 1/3 from 2/3.

It would have been different if the question asked for taking away 1/3 of how much the cup was filled, though.

Hope this helps.

Good Luck

Answer:

1/3 is your answer

Step-by-step explanation:

2/3-1/3=1/3

Using the solution of system of equations, the y- coordinate of intersection point is between 2 and 3 and the x - coordinate is closer to -4 than -3

In algebra, a system of equations comprises two or more equations and seeks common solutions to the equations. "A system of linear equations is a set of equations which are satisfied by the same set of variables."

In the question given, we are told the system of equation have a solution of (-3.7, 2.2).

What this implies is that the value of x and y are 3.7 and 2.2 respectively.

In the options given;

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Answer:

B) The y-coordinate of the intersection point is between 2 and 3.

D) The x-coordinate is closer to –4 than –3.

Step-by-step explanation:

Answer:

the answer is 2.964

Step-by-step explanation:

i just did it in my head brainliest pls and my sis going to copy me dont listen to her

Answer:

2.964

Step-by-step explanation:

The evaluation of g(x, y, z) at the point (2, 0, 1) yields a numerical result of approximately -20.1404. This can be written as g(2, 0, 1) ≈ -20.1404.

To evaluate g(x, y, z), we substitute the values x = 2, y = 0, and z = 1 into the given expression. Plugging these values into the equation, we have g(2, 0, 1) = (0^5 ³ − 2(2) + 1^2)ª · In(2(0)(1)^2 + 10(2) + 5(1)) cos^5 (2(0)(1)) - 9(1)/(9(1)).

Simplifying further, we get g(2, 0, 1) = (0 − 4 + 1)ª · In(0 + 20 + 5) cos^5 (0) - 1.

Now we can evaluate the expression inside the parentheses step by step. (0 − 4 + 1) gives us -3, In(0 + 20 + 5) is ln(25), and cos^5 (0) is equal to 1 since cos(0) = 1. Finally, substituting these values into the equation, we obtain g(2, 0, 1) = (-3)ª · ln(25) - 1.

Evaluating (-3)ª · ln(25) - 1 numerically gives us approximately -20.1404. Hence, we can write the final answer as g(2, 0, 1) ≈ -20.1404.

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