Aye yo help me plz!

1.) Which of the following equations is not a linear equation?
A) y = -4
B)X 3 = 1
C) 2x -4y =1
D) y= X - 2

2.) Find the value of y that makes the equation y= -x + 5 true, when x =-4

A.) -1
B.) 2
C.) 1
D.) 9

3.) Find the value of y that makes the equation y= x + 1/4 true, when x = - 1/4.

A.) -4
B.) 0
C.) 1
D.) 4​

This problem can be solved using the concept of the expected value of a random variable. Let X be the random variable representing the number of boxes a person needs to buy to get all four prizes.

To calculate the expected value E(X), we can use the formula:

E(X) = 1/p

where p is the probability of getting a new prize in a single box. In the first box, the person has a 4/4 chance of getting a new prize. In the second box, the person has a 3/4 chance of getting a new prize (since there are only 3 prizes left out of 4). Similarly, in the third box, the person has a 2/4 chance of getting a new prize, and in the fourth box, the person has a 1/4 chance of getting a new prize. Therefore, we have:

p = 4/4 * 3/4 * 2/4 * 1/4 = 3/32

Substituting this into the formula, we get:

E(X) = 1/p = 32/3

Therefore, the average number of boxes a person needs to buy to get all four prizes is 32/3, or approximately 10.67 boxes.

To know more about average refer here

https://brainly.com/question/16956746

SPJ11

Answer:

A) x = 6 y = 6√3

Step-by-step explanation:

30-60-90 Triangle rule states that the hypothesis is 2x, the short leg is x, and the long leg is x√3. So, the short leg is 12/2 = 6, and the long leg is 6√3.

Answer:

√3 cm

or

1.73 cm to the nearest hundredth.

Step-by-step explanation:

Each side must be 2 cm long

Using Heron's formula

Area = √(s(s-a)(s-b)(s-c)  where s = semi-perimeter, a , b and c are the 3 side lengths.

So here s = 6/2 = 3 and all the sides = 2 so

Area  = √(3(3-2)^3

         =  √3 cm.

The  C is perpendicular to AB

When using paper, the paper perpendicular te construct to is folded so that AB is divided equally and the two sides of. line AB will lie exactly on top of each other.

When using a reflective device to construct a live perpendicular to line AB, set One end of the device to coincide with point C, and then swing the other end of the device so that the reflection of line AB coincides with the midpoint of AB

The question is incomplete hence the complete question is shown here

Select the correct answer from the drop-down menu. Compare the steps for constructing a perpendicular line to line  through point  using a reflective device and using paper. , When using paper to construct the perpendicular line, the paper is folded so that and the two sides of line  will lie exactly on top of each other. When using a reflective dewice to construct a line perpendicular to line  , set one end of the device to coincide with , and then swing the other end of the device so the reflection of line  coincides with.

Learn more About Perpendicular line here

https://brainly.com/question/1202004

#SPJ1

Answer:

I toke the test, I think the first one is A and  B coincide

Step-by-step explanation:

Answer:h(13) = 18

Step-by-step explanation:

Answer:

The equation is 20 + 15x. Bill took 7 lessons.

Step-by-step explanation:

Let x represent the number of lessons Bill take. Then,

the total cost = materials fee + (each lesson cost).x

Since the materials fee is $20 and each lesson costs $15

The total cost = 20 + 15x

Since Bill's total cost was $125:

→ 125 = 20 + 15x

→ 105 = 15x

→ x = 7

Answer:

$23

Step-by-step explanation:

add:

   14.50

+   8.50

-------------

   23.00

hope this helped!

Answer:

x = 63

Step-by-step explanation:

2x - 6 = 120

2x = 126

x = 63

Answer:

x=63

Step-by-step explanation:

You put 2x-6=120. So 120+6 is 126. You then divide 126 by to and get 63.

The electric field strength decreases as the distance from the plane increases.

The electric field strength near an infinite plane of charge is given by:

E = σ/2ε0

where E is the electric field strength, σ is the surface charge density of the plane, and ε0 is the electric constant.

The electric field strength at a point near the plane depends on the distance from the plane and the orientation of the point relative to the plane.

Assuming that the surface charge density is constant, we can rank the electric field strength from largest to smallest based on the distance from the plane:

Point closest to the plane

Point at a distance of 2 times the distance from point 1

Point at a distance of 3 times the distance from point 1

Point at a distance of 4 times the distance from point 1

Point at a distance of 5 times the distance from point 1

This is because the electric field strength decreases as the distance from the plane increases.

Learn more about electric field strength

brainly.com/question/15170044

#SPJ11

Answer:

7 units

Step-by-step explanation:

(Background info, skip if not interested or needed for you)

The equation for distance on a cartesian plane coordinate system is based off the pythagorean theorem.

\(a^2 + b^2 = c^2\)

a and b being sides of a right triangle, c being the hypotenuse.

When we are solving for distance we are solving for c essentially.

\(c\) = \(\sqrt{a^2 + b^2}\)

Because a and b are side lengths of the right triangle, we need to find a way to find that in terms of coordinates. So here we might say that a is equal to the horizontal distance between the 2 points or Δx, and we would say that b is the vertical distance between the 2 points Δy.

(solutions)

So essentially distance is:

\(d = \sqrt{(x_2 - x_1)^2+ (y_2-y_1)^2 }\)

Now we just use the values given to us, and sub in the x and y values respectively.

(-2,4) \(x_1 = -2, y_1 = 4\)

(5,4)\(x_2 = 5, y_2 = 4\)

plug these values in:

\(d = \sqrt{((5) - (-2))^2+ (4-4)^2 } = \sqrt{(7)^2+ (0)^2 } = \sqrt{7^2 } = 7\)

Therefore the distance is 7 units.

Answer:

reeeeeerre

Step-by-step explanation:

Answer:

-2j+39=111=

-2j+39=111-39

-2j=72

-2j÷2=72÷2=

j=36

the answer is j=36

The planning value for the population standard deviation is estimated to be $3,350, and sample sizes of approximately 46, 566, and 2,262 would be needed to achieve desired margins of error of $500, $200, and $100, respectively.

(a) Desired margin of error = $500

The formula for the sample size required to estimate the population mean with a desired margin of error is:

n = (Z * σ / E)²

Where:

n = sample size

Z = Z-score corresponding to the desired confidence level (95% confidence level corresponds to a Z-score of 1.96)

σ = population standard deviation

E = desired margin of error

Since we don't have the actual population standard deviation, we can estimate it using the planning value.

Range of expected salaries = $55,400 - $42,000 = $13,400

Planning value for standard deviation = Range / 4 = $13,400 / 4 = $3,350

Substituting the values into the formula:

n = (1.96 * $3,350 / $500)² ≈ 45.96

Since we can't have a fraction of a sample, we need to round up to the nearest whole number.

Therefore, the sample size needed for a desired margin of error of $500 is 46.

(b) Desired margin of error = $200

Using the same formula:

n = (1.96 * $3,350 / $200)² ≈ 565.44

Rounding up to the nearest whole number, the sample size needed for a desired margin of error of $200 is 566.

(c) Desired margin of error = $100

Using the same formula:

n = (1.96 * $3,350 / $100)² ≈ 2,261.76

Rounding up to the nearest whole number, the sample size needed for a desired margin of error of $100 is 2,262.

(d) Would you recommend trying to obtain the $100 margin of error? Explain.

Obtaining a margin of error as low as $100 would require a sample size of 2,262. While this larger sample size may provide a more precise estimate, it also increases the cost and time required for data collection and analysis. Therefore, the decision to obtain such a small margin of error should be based on the practicality and resources available. It is important to consider the trade-off between the desired level of precision and the associated costs and efforts.

Therefore, the planning value for the population standard deviation is estimated to be $3,350, and sample sizes of approximately 46, 566, and 2,262 would be needed to achieve desired margins of error of $500, $200, and $100, respectively.

To know more about margin of error check the below link:

https://brainly.com/question/15691460

#SPJ4

Answer:

28

Step-by-step explanation:

After substituting -2 for m and 5 for n, the original expression becomes:

|(-2)^2 - 7| + (5)^2, or

|4 - 7| + 25  or

|-3| + 25 = 28

The slope for the function f(t) = 3 - 3/5t at point (3/5, 2) is 5/3.

What is slope?

A line's steepness and direction are measured by the line's slope. Without actually using a compass, determining the slope of lines in a coordinate plane can assist in forecasting whether the lines are parallel, perpendicular, or none at all.

The given function is - f(t) = 3 - 3/5t.

The data points are - (3/5, 2)

Rewrite the function -

f(t) = 3 - 3/5 t^-1

Differentiate with respect to t. Use the difference rule.

d/dt (3) - d/dt (3/5 t^-1)

Use the constant rule and the constant multiple rule.

0 - 3/5 d/dt (t^-1)

Use the power rule.

-3/5(-1)t^(-1 - 1)

3/5t^-2

Now plug in 3/5 for t on the derivative in order to find the slope at point (3/5, 2).

3/5(3/5)^-2

3/5(5/3)^2

3/5 × 25/9

5/3

Therefore, the slope value is 5/3.

To learn more about slope from the given link

https://brainly.com/question/16949303

#SPJ4

Find the slope of the graph of the function at the given point.

Function Point f(t) = 3 - 3/5t (3/5, 2)

The area of the diamond shape figure ABCD is approximately 331.95 square units.

How to find area?

To find the area of the diamond shape figure ABCD, we need to first find the length of the diagonals. Since we know that the opposite sides of a diamond shape are equal and parallel, we can divide the shape into two congruent triangles ABD and BCD.

Let's use the Pythagorean theorem to find the length of the diagonal AC, which is also the hypotenuse of the right-angled triangle ACD:

AC² = AD² + CD²

CD is half the length of BC, which is 12, so CD = 6. Substituting the values, we get:

AC² = 25² + 6²

AC²= 625 + 36

AC²= 661

AC = √661 ≈ 25.74

Similarly, we can find the length of the diagonal BD, which is also the hypotenuse of the right-angled triangle ABD:

BD²= AD² + AB²

AB is half the length of BC, which is 12, so AB = 6. Substituting the values, we get:

BD²= 25²+ 6²

BD² = 625 + 36

BD²= 661

BD = √661 ≈ 25.74

Now that we know the lengths of both diagonals, we can use the formula for the area of a diamond shape:

Area = (AC × BD) / 2

Substituting the values, we get:

Area = (25.74 × 25.74) / 2

Area ≈ 331.95

Therefore, the area of the diamond shape figure ABCD is approximately 331.95 square units.

To know more about Area visit :-

https://brainly.com/question/25292087

#SPJ1

The cost price of 1 jacket is $23.25 and the cost price of 3 jackets is $69.75.

Cost price is the total amount of money to produce a given product or provide a given service.

Given cost prices for jackets are,

Jackets Cost Price

2         46.5

5         116. 25

7         162. 75

We need to calculate the cost price of 3 jackets. First, we need to find out the cost price of one jacket.

\(2 \; \rm Jackets =\$ 46.50\)

\(1 \;\rm Jacket = \dfrac {\$46.50}{2}\)

\(1 \;\rm Jacket = \$ 23.25\)

Now the cost price of 3 jackets is given as,

\(3\;\rm Jackets = \$23.25 \times 3\)

\(3\;\rm Jackets = \$69.75\)

Hence we can conclude that the cost price of 3 jackets is $69.75.

To know more about the cost price, follow the link given below.

https://brainly.com/question/11027396.

Answer:

31

Step-by-step explanation:

trust me

Answer:

31

Step-by-step explanation:

W=30.584≈31

The required values are A = 1, B = 0, and C = 8 because the equation for the thrown ball's path will be x = 8.

Let the vertical line be the y-axis and the horizontal line be the x-axis, the ball is thrown from a place that is parallel to the y-axis (8,0).

Because the house is the starting point and the ball is thrown from a position 8 feet to the right of the house,

As a result, the equation for the thrown ball's path will be x = 8.

Therefore, A = 1, B = 0 and C = 8.

Hence, the required values are A = 1, B = 0, and C = 8 because the equation for the thrown ball's path will be x = 8.

Learn more about the equation here:

brainly.com/question/13947055

#SPJ1

Answer:

True

Step-by-step explanation:

I looked it up

The solution to the Equations is    x = 3, x = 7, x = 11,  x = -9,  x = 1.3,               x = -4, x = -4,x = -2,x = 11, x = 3.33,x = 7, x = 5,x = -4.

1. To solve 3(x+2)=15, we first distribute the 3 and get 3x + 6 = 15. Then, we subtract 6 from both sides and get 3x = 9. Finally, we divide both sides by 3 and get x = 3.

2. To solve 2(x+5)=24, we first distribute the 2 and get 2x + 10 = 24. Then, we subtract 10 from both sides and get 2x = 14. Finally, we divide both sides by 2 and get x = 7.

3. To solve 6(x-9)=12, we first distribute the 6 and get 6x - 54 = 12. Then, we add 54 to both sides and get 6x = 66. Finally, we divide both sides by 6 and get x = 11.

4. To solve 2(3x+5)= -44, we first distribute the 2 and get 6x + 10 = -44. Then, we subtract 10 from both sides and get 6x = -54. Finally, we divide both sides by 6 and get x = -9.

5. To solve 5(4x-3)=11, we first distribute the 5 and get 20x - 15 = 11. Then, we add 15 to both sides and get 20x = 26. Finally, we divide both sides by 20 and get x = 1.3.

6. To solve -3(2x+1)=21, we first distribute the -3 and get -6x - 3 = 21. Then, we add 3 to both sides and get -6x = 24. Finally, we divide both sides by -6 and get x = -4.

7. To solve -9(x-4)=54, we first distribute the -9 and get -9x + 36 = 54. Then, we subtract 36 from both sides and get -9x = 18. Finally, we divide both sides by -9 and get x = -2.

8. To solve 7(x-4)-3=46, we first distribute the 7 and get 7x - 28 - 3 = 46. Then, we combine like terms and get 7x - 31 = 46. Then, we add 31 to both sides and get 7x = 77. Finally, we divide both sides by 7 and get x = 11.

9. To solve 2(3x-1)+3=21, we first distribute the 2 and get 6x - 2 + 3 = 21. Then, we combine like terms and get 6x + 1 = 21. Then, we subtract 1 from both sides and get 6x = 20. Finally, we divide both sides by 6 and get x = 3.33.

10. To solve 2(x+1)+3x=37, we first distribute the 2 and get 2x + 2 + 3x = 37. Then, we combine like terms and get 5x + 2 = 37. Then, we subtract 2 from both sides and get 5x = 35. Finally, we divide both sides by 5 and get x = 7.

11. To solve 12+4(2x+4)=68, we first distribute the 4 and get 12 + 8x + 16 = 68. Then, we combine like terms  x = 5.

12.To solve 3x - 2(6x - 3) = 42, we first distribute the -2 and get:3x - 12x + 6 = 42,9x + 6 = 42Then, we subtract 6 from both sides:-9x = 36Finally, we divide both sides by -9 and get:x = -4Therefore, the solution to the equation is x = -4.

To know more about Equations .

https://brainly.com/question/17145398

#SPJ11

The solution to the algebraic expressions are:

1. x = 3

2. x = 7

3. x = 13

4. x = -9

5. x = 1.3

6. x = -4

7. x = -2

8. x = 11

9. x = 10/3

10. x = 5

11. x = 5

12. x = -4

1. 3(x + 2) = 15,

Using distributive property, we get 3x + 6 = 15.

3x = 9

x = 9/3

x = 3

2. 2(x + 5) = 24

Using distributive property, we get:

2x + 10 = 24

2x = 14

x = 7

3. 6(x - 9) = 12

Using distributive property, we get:

6x - 54 = 24

6x = 78

x = 78/6

x = 13

4. 2(3x + 5) = -44

Using distributive property, we get:

6x + 10 = -44

6x = -54

x = -9

5. 5(4x - 3) = 11

Using distributive property, we get:

20x - 15 = 11

20x = 26

x = 1.3

6. -3(2x + 1) = 21

-6x - 3 = 21

-6x = 24

x = -4

7. -9(x - 4) = 54

Using distributive property, we get:

-9x + 36 = 54

-9x = 54 - 36

-9x = 18

x = -2

8. 7(x - 4) - 3 = 46

Using distributive property, we get:

7x - 28 - 3 = 46

7x = 77

x = 11

9) 2(3x - 1) + 3 = 21

Using distributive property, we get:

6x - 2 + 3 = 21

6x = 20

x = 20/6

x = 10/3

10) 2(x + 1) + 3x = 37

2x + 2 + 3x = 37

5x = 35

x = 5

11) 12 + 4(2x + 4) = 68

12 + 8x + 16 = 68

8x = 40

x = 5

12) 3x - 2(6x - 3) = 42

3x - 12x + 6 = 42

6 - 9x = 42

9x = -36

x = -36/9

x = -4

Read more about Algebra Expressions at: https://brainly.com/question/4344214

#SPJ1

ANSWER

My Answer is in the photo above

3x + 2 = 14 -3

or, 3x = 14-3-2

or, 3x = 9

or, x = 9/3 = 3

The answer is 3.

Please mark me Brainliest if you like my answer.

Answer:

i hope its understood....

The result of the log function \(log_a (m * n ^ 2)\)  is 60

According to the law of logarithm if \(log_ab=y\) then \(b=a^y\)

Given the following expressions

\(log_am=10\\log_an=25\)

This can be expressed as

\(m =a^{10} \ and \ n = a^{25}\)

Substitute the value of m and n into the expression \(log_a (m * n ^ 2)\) to have:

\(log_a (m * n ^ 2) = log_a(a^{10}\times a^{50})\\=log_aa^{60}\\=60log_aa\\=60(1) \\= 60\)

This shows that the result of the log function \(log_a (m * n ^ 2)\)  is 60

Learn more here: https://brainly.com/question/12049968

False. In the presence of multicollinearity, the predicted values of y can be unreliable for values of x far outside the range of the sampled values of x. Multicollinearity occurs when there is a high correlation between independent variables, making it difficult to determine the true effect of each variable on the dependent variable. This can result in unstable and inconsistent coefficient estimates, which in turn can lead to inaccurate predictions for values of x that are not in the original sample range. Therefore, it is important to address multicollinearity in the data before making predictions and drawing conclusions.

Multicollinearity can have a significant impact on the accuracy of predicted values in regression analysis. It can lead to unstable and inconsistent coefficient estimates, which can result in unreliable predictions. In the presence of multicollinearity, the standard errors of the regression coefficients can become inflated, which makes it difficult to determine the true effect of each independent variable on the dependent variable. This can lead to overestimation or underestimation of the coefficients, and ultimately inaccurate predictions.

In summary, the statement that the predicted values of y are actually quite good for values of x far outside the range of the sampled values of x in the presence of multicollinearity is false. Multicollinearity can cause unstable and inconsistent coefficient estimates, which can lead to inaccurate predictions. Therefore, it is important to address multicollinearity in the data before making predictions and drawing conclusions.

To know more about multicollinearity visit:

https://brainly.com/question/31571707

#SPJ1Q

Answer:

8 in

Step-by-step explanation:

Area of a square = l×w

Since it is a square then l and w are equal to each other.

So we can instead just say l^2 = A

l^2 = 68.2

l = square root of 68.2

l = 8.26

A dotted line is not included in the solution so there is no equal sign.

The blue area is to the right of the dotted line so the solution is >

The line crosses the x axis at -2

The answer is : x-y > -2

Angles in 59 non-similar triangles having degree measures that are integers via arithmetic progression.

Let the summation of the angle values be: Using arithmetic progression & triangle knowledge, letting the sum of the angle values be:

∑degree = 180

For an odd arithmetic progression with a strange number of words, the median term is equivalent to the average of both the sum of all terms:

An arithmetic sequence's nth term,

Let the initial triangle angle =a

Let d be a common difference.

Because the angles' measurements follow an arithmetic progression \(T_{n}\) = a + (n - 1) × d

a + (a + d) + (a + 2d) = 180

3a+3d=180

a+d=60

Because an or d cannot be identical to zero, the minimum and maximum possible values for a and d are 1 and 59, respectively.

As a result, there are 59 distinct triangles.

Learn more about the arithmetic progression at

https://brainly.com/question/16966343?referrer=searchResults

#SPJ4