help please asap. . . . . ​

Answer:

How much time do i have?

Step-by-step explanation:

Answer:

I think it's B.) 2x² - 2x + 2

Step-by-step explanation:

I'm not going to explain because you don't have much time.

Answer:

a 34

b 134

c 140

Step-by-step explanation:

a) 180 - 146 = 34

b) 180 - 46 = 134

c) 180 - 40 = 140

Answer:

Exponential decay

Step-by-step explanation:

The general form of an exponential function is

\(P=P_{0}a^t\), where P0 is the initial value, a is the base, and t is the exponent.

In your example, P0 is 1 and a is 4/5.

A function is experiencing exponential growth when a > 1.

A function is experiencing exponential decay when 0 < a < 1.

4/5 lies between 0 and 1, so the function is experiencing exponential decay.

Answer:

a. n (table)     : 1  2  3  4  5  6

  s (students):4  6  8 10 12 14

b. Arithmetric, since it is adding and corresponding with the numbers

d. 32

not sure about c though. hope this helped.

Answer:

NO

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

There is not a constant and equal change on both sides.

Answer:

the annswer is 4155 because its in formal information

Step-by-step explanation:

the annswer is 4155 because its in formal information

Answer:

k=a+7

Step-by-step explanation:

Take 1 k away from both sides. I hope you found this useful!

Answer:

k = \(\frac{7}{2-a}\)

Step-by-step explanation:

2k = ak + 7 ( subtract ak from both sides )

2k - ak = 7 ← factor out k from each term on the left side

k(2 - a) = 7 ( isolate k by dividing both sides by (2 - a) )

k = \(\frac{7}{2-a}\)

The table or software, we find that the critical t-value is approximately 1.684.

The critical value for the traditional method of testing can be determined by comparing the given sample data and the significance level of α = 0.05. Based on the information provided, we need to find the critical t-value for a one-tailed test with a significance level of 0.05.

The critical value for the traditional method of testing can be obtained from a t-distribution table or by using statistical software. For a one-tailed test with α = 0.05 and degrees of freedom (df) equal to n1 + n2 - 2 = 48 + 44 - 2 = 90, the critical t-value is approximately 1.684.

To find the critical value for the traditional method of testing, we need to consider the significance level (α), the type of test (one-tailed or two-tailed), and the degrees of freedom. In this case, the claim is that μ1 > μ2, indicating a one-tailed test. The given significance level is α = 0.05.

Using the sample data provided, we calculate the degrees of freedom as df = n1 + n2 - 2 = 48 + 44 - 2 = 90. With a one-tailed test and a significance level of α = 0.05, we refer to the t-distribution table or use statistical software to find the critical t-value corresponding to these values. From the table or software, we find that the critical t-value is approximately 1.684.

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Applying the knowledge of congruent triangles, the measures are solved as:

6. X = 14; AC = 11; T = 14; WZ = 16; WY = 60; AB = 60; m∠A = 64°; m∠Y = 64°; m∠W = 50°

7. X = 7; YZ = 28; T = 9; WZ = 10; WY = 11; AB = 28; m∠A = 31°; m∠C = m∠W = 99°

To solve for the missing measures of triangles that are congruent to each other, recall that triangles that are congruent will have corresponding sides that are equal and also corresponding angles that are equal.

6. Triangles ABC and YWZ are congruent, therefore:

m∠A = m∠Y; m∠B = m∠W; m∠C = m∠Z

AB = WY; AC = YZ; BC = WZ

Therefore:

5X - 4 = 66

Solve for X

5X = 66 + 4

5X = 70

X = 14

AC = YZ = 11

AB = WY

5T - 10 = 4T + 4

5T - 4T = 10 + 4

T = 14

BC = WZ = 16

WZ = 16

WY = 4T + 4 = 4(14) + 4

WY = 60

AB = WY = 60

AB = 60

m∠A = m∠Y

m∠A = 180 - 50 - 66

m∠A = 64°

m∠Y = 64°

m∠B = m∠W = 50°

m∠W = 50°

7. Triangles ABC and ZYW are congruent, therefore:

m∠A = m∠Z; m∠B = m∠Y; m∠C = m∠W

AB = YZ; AC = WZ; BC = WY

Therefore:

5X - 4 = 3X + 10

Solve for x

5X - 3X = 4 + 10

2X = 14

X = 7

AB = YZ

2T + 10 = 4T - 8

2T - 4T = -10 - 8

-2T = -18

T = 9

YZ = 4T - 8 = 4(9) - 8

YZ = 28

AC = WZ = 10

WZ = 10

WY = 11

AB = YZ = 28

AB = 28

m∠A = m∠Z = 3X + 10 = 3(7) + 10

m∠A = 31°

m∠C = m∠W = 180 - 31 - 50 = 99°

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The required answer is OB. 2,253.6 feet.

To find the altitude of the plane when it has covered a ground distance of 10,000 feet at an angle of elevation of 12.7°, you can use the tangent function in trigonometry.

Step 1: Set up the equation using the tangent function:
tan(angle) = (altitude) / (ground distance)

Step 2: Plug in the given values:
tan(12.7°) = (altitude) / (10,000 feet)
Use the tangent function to relate the angle of elevation, the ground distance, and the altitude. The formula is: tan(angle) = altitude / ground distance .
Step 3: Solve for altitude:
altitude = tan(12.7°) * 10,000 feet
The angle of elevation of 12.7 degrees tells us that we are dealing with a right triangle, where the height of the triangle represents the altitude of the plane and the horizontal distance represents the ground distance covered by the plane. We can use the tangent function to find the height of the plane.
Step 4: Calculate the altitude:
altitude ≈ 2,253.6 feet

The altitude of the plane will be approximately 2,253.6 feet when it has covered a ground distance of 10,000 feet. Therefore, the correct answer is OB. 2,253.6 feet.

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\(5-(-2x-7) \\(x+6)\)

To predict a linear regression score, you first need to train a linear regression model using a set of training data.

Once the model is trained, you can use it to make predictions on new data points. The predicted score will be based on the linear relationship between the input variables and the target variable,

A higher regression score indicates a better fit, while a lower score indicates a poorer fit.

To predict a linear regression score, follow these steps:

1. Gather your data: Collect the data p

points (x, y) for the variable you want to predict (y) based on the input variable (x).

2. Calculate the means: Find the mean of the x values (x) and the mean of the y values (y).

3. Calculate the slope (b1): Use the formula b1 = Σ[(xi - x)(yi - y)]  Σ(xi - x)^2, where xi and yi are the individual data points, and x and y are the means of x and y, respectively.

4. Calculate the intercept (b0): Use the formula b0 = y - b1 * x, where y is the mean of the y values and x is the mean of the x values.

5. Form the linear equation: The linear equation will be in the form y = b0 + b1 * x, where y is the predicted value, x is the input variable, and b0 and b1 are the intercept and slope, respectively.

6. Predict the linear regression score: Use the linear equation to predict the value of y for any given value of x by plugging the x value into the equation. The resulting y value is your predicted linear regression score.

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Answer:

see below

Step-by-step explanation:

The points (–2, 3) and (–2, –3) are reflected across  the x axis because the y value is the opposite

The points (–3, 5) and (3, 5) are reflected across the y axis because the x value is the opposite

The points (4, –2) and (2, 2) are reflected across y =x-3.  We find this by drawing a line equidistant between the points and calculating the slope and the y intercept of the line.The slope is 1 and the y intercept is -3

Answer:

1. X

2. Y

3. None

Step-by-step explanation:

The equation that shows how the number of square feet the painter can cover, y, depends on the number of gallons of paint available, x is y = 400x.

An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side.

Given that,

A house painter knows that he can cover 400 square feet with a gallon of paint.

Let x be the number of gallons of paint.

Let y be the number of square feet the painter can cover.

Number of square feet the painter can cover with 1 gallon of paint = 400

Number of square feet the painter can cover with x gallon of paint = 400x

So y = 400x

Hence the required equation is y = 400x

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The final speed v2 is √6 times the initial speed v1, when the net force is 2f1 and the object moves the same distance d while the force is being applied.

We can use the work-energy theorem to solve this problem, which states that the work done on an object by a net force is equal to the change in its kinetic energy.

When the force has magnitude f1 and the object moves a distance d, the work done is:

W = f1 * d

This work changes the kinetic energy of the object from zero to (1/2) * m * v1^2, where m is the mass of the object. Therefore, we have:

f1 * d = (1/2) * m * v1^2

Solving for v1, we get:

v1 = sqrt((2 * f1 * d) / m)

Now, when the net force has magnitude f2 = 2f1 and the object moves the same distance d, the work done is:

W = f2 * d = 2f1 * d

This work changes the kinetic energy of the object from (1/2) * m * v1^2 to (1/2) * m * v2^2, where v2 is the final speed of the object. Therefore, we have:

2f1 * d = (1/2) * m * (v2^2 - v1^2)

Solving for v2, we get:

v2 = sqrt(v1^2 + (4 * f1 * d) / m)

Substituting the expression for v1, we get:

v2 = sqrt((4 * f1 * d) / m + (2 * f1 * d) / m)

Simplifying, we get:

v2 = sqrt(6) * v1

Therefore, the final speed v2 is sqrt(6) times the initial speed v1.

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Answer:

36ft

Step-by-step explanation:

Answer:

Anthony's age: 2y - 5 = x

Brian's age: x - 7 = y

Step-by-step explanation:

Anthony: If his age is 5 less, this means - 5 is in the equation. It is 5 less than twice Brian's age, meaning × 2, or in algebra, 2y. So Anthony's age is 2y - 5

Brian: His age is 7 less so this means - 7 is in the equation. We know Anthony's age is x so Brian's age is x - 7

Step-by-step explanation:

A) Given the initial height of plant = 20cm

Percent increase monthly = 4%

increment after x month = (4% of 20)x

increment after x month = (0.04*20)x

increment after x month = 0.8x

The height after x month = initial height + increment

The height after x month = 20 + 0.8x

Hence an equation that model the growth of the plant is 20+0.8x

B) To get the height of the plant after 5 months, we will substitute x = 5 into the modeled equation in A as shown;

H(x) = 20+0.8x

H(5) = 20 +0.8(5)

H(5) = 20+4

H(5) = 24cm

hence the height of the plant after 5minths is 24cm

To decrease the width of the confidence interval, the researcher can take the following steps:

1. Decrease the confidence level: The confidence interval width is inversely proportional to the confidence level. By decreasing the confidence level, the researcher can have a narrower interval. However, it is important to note that decreasing the confidence level also increases the chance of the interval not capturing the true population mean.

2. Increase the sample size: The sample size affects the precision of the estimate. Increasing the sample size reduces the standard error, which leads to a narrower confidence interval. This is because a larger sample provides more information about the population.

Therefore, the researcher can decrease the width of the confidence interval by either decreasing the confidence level or increasing the sample size. Both approaches will result in a narrower interval, providing a more precise estimate of the mean fat content of hen's eggs.

The researcher can decrease the width of the confidence interval by either decreasing the confidence level or increasing the sample size. Both approaches will result in a more precise estimate of the mean fat content of hen's eggs.

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Answer:

<ABD = 67.17

Step-by-step explanation:

Comment

This requires 2 steps.

Finding <A

<A is found by taking the inverse tangent of the ratio 8/19.

<A = tan-1*(8/19)

<A = 22.83 degrees. We'll round it later.

Finding <ABD

You have to use 2 facts here.

All triangle angles add up to 180 degrees.

You find the third angle by subtracting the other 2.

<A = 22.83                                       Found above

<ADB = 90 degrees                        Given

<ABD = ?

Equation

< A + <ADB + <ABD = 180

Solution

22,83 + 90 + <ABD = 180                 Combine the left

112.83 + <ABD = 180                         Subtract 112.83 from both sides.

112.83-112.83 +<ABD = 180 - 112.83  Combine

<ABD = 67.17

The answer to the nearest degree is 67.

If the price of rough rice increases from 12,000 to 20,000 rupees per ton, the supply curve of milled rice in India will decrease by 96 million tons per year.

To determine how the supply curve changes when the price of rough rice increases from 12,000 to 20,000 rupees per ton, we need to analyze the given supply function:

Q = 8 + 9p - 12p,

In the supply function, "p" represents the price of milled rice in thousands of rupees per ton. However, there is a typo in the equation provided for the supply function. It appears that the equation contains two terms with the variable "p," which should be corrected.

Assuming the corrected supply function is:

Q = 8 + 9p - 12p',

Where p' represents the price of rough rice in thousands of rupees per ton.

Now, let's calculate the initial supply quantity and then compare it with the new supply quantity after the increase in the price of rough rice.

For the initial price of rough rice (p') at 12,000 rupees per ton:

Q1 = 8 + 9p - 12(12)

Q1 = 8 + 9p - 144

For the new price of rough rice (p') at 20,000 rupees per ton:

Q2 = 8 + 9p - 12(20)

Q2 = 8 + 9p - 240

The change in supply can be calculated as the difference between Q2 and Q1:

Change in supply (ΔQ) = Q2 - Q1

= (8 + 9p - 240) - (8 + 9p - 144)

= -240 + 144

= -96

The change in supply (ΔQ) is -96 millions of tons of rice per year.

Therefore, if the price of rough rice increases from 12,000 to 20,000 rupees per ton, the supply curve of milled rice in India will decrease by 96 million tons per year.

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Let's solve your equation step-by-step.

\(-8 + 4m = 2\)

Step 1: Simplify both sides of the equation.

\(4m - 8 = 2\)

Step 2: Add 8 to both sides.

\(4m - 8 + 8 = 2 + 8 \\4m = 10\)

Step 3: Divide both sides by 4.

\(\frac{4m}{4} = \frac{10}{4} \\m = \frac{5}{2}\)

Answer : \(\boxed {m = \frac{5}{2} }\)

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Answer:

Xeno jumped 1 2/3 in

Step-by-step explanation:

if Mai jumped 3 times higher than Priya dividing Mai's 14 by 3 would get Priya's height. Then by subtracting 3 from Priya's height, which is 4 2/3, you get Xeno's height which is 1 2/3 in

Answer:

It's quite easy

Step-by-step explanation:

people less than 30 years = frequency of people 0 to 15 + 15 to 30 = 8+15 =23

Therefore there are 23 people less than 30 years old.

pls mark me as brainliest pls.

The value of the side ST or p is equal to 3

A trapezoid is also known as a trapezium is a four-sided polygon or a quadrilateral. It has one set of opposite sides which are parallel and a set of non-parallel sides. The parallel sides are known as the bases and the non-parallel sides are known as the legs of the trapezoid.

Given here: A trapezoid STVW and ST=p and UX=4p-3 and VW=2p+9 with U and X are midpoints.

The length of the midsegment is the sum of the two bases divided by 2.

Now we know that the mid segment UX is given by    

UX= ST+VW / 2

thus substituting the values we get

4p-3= p+2p+9 /2

8p-6=3p+9

5p=15

p=3

Hence, The value of p is equal to 3

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(a) The probability that the student is both a senior and a mathematics major can be calculated by dividing the number of students who are both seniors and mathematics majors by the total number of students in the class. From the given information, there are 26 seniors and 25 mathematics majors. However, we need to be careful not to double-count the students who fall into both categories. Since the number of students who are neither senior nor mathematics major is 9, the number of students who are both senior and mathematics major is 26 + 25 - 9 = 42. Therefore, the probability is 42/47.

(b) Given that the student selected is a mathematics major, we need to find the probability that he is also a senior. This can be calculated by dividing the number of mathematics majors who are also seniors by the total number of mathematics majors. From the given information, there are 25 mathematics majors and 26 seniors. Therefore, the probability is 26/25.

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Answer: A

Did the test

Answer:

Step-by-step explanation:

Hope this Helped.

Answer:-2x=-38

Step-by-step explanation:

start by multiplying 5 by the 2x and the 6 and do it on the otherside with the 4 multiplying by 3x and 2 after that  add 30 to each side then subtract 12 from each side