Help me with this one please​

Answer: 6y-4

Step-by-step explanation:

Combine like terms

Answer:

  6 cm

Step-by-step explanation:

A diameter of a circle is a line segment that connects one side of the circle to the other, passing through the center.

The distance from the center to any point on the circle is the radius. So, a diameter is the sum of a radius to one side of the circle and a radius to the other side of the circle. (The circle center is the midpoint of the diamter.)

The diameter is twice the radius:

  d = 2 × (3 cm) = 6 cm

The dial's diameter is 6 cm.

The gardener will need to purchase an additional 6 1/2 ft of fencing to complete his square garden for his flowers.

You want to know how much more fencing the gardener will need to purchase if he already has 4 1/2 ft of fencing and

the length of one side of the square garden is 2 3/4 ft.

Since the garden is square, all sides have the same length. We know one side is 2 3/4 ft.

Multiply the length of one side (2 3/4 ft) by 4 to find the total amount of fencing needed for the entire garden:

2 3/4 × 4 = 11 ft.

Now, subtract the amount of fencing the gardener already has (4 1/2 ft) from the total amount needed (11 ft):

11 - 4 1/2 = 6 1/2 ft.

So, the gardener will need to purchase an additional 6 1/2 ft of fencing to complete his square garden for his flowers.

for such more question on word problem

https://brainly.com/question/21405634

#SPJ11

Step-by-step explanation:

let M be the midpoint of x and y

xM= (xX+xY)/2 =(0+88)2=44

yM=(Yx+yY)/2=(21_103)/2=_41

M(44,_41)

B is the midpoint of DC.

Answer:

11 m= 3      12 slope is 4 and y intercept is 2

Step-by-step explanation:

11 slope = gradient of a line                            formulae        y2-y1  / x2 - x1  

12-6 / 4-2 =3                                

12 slope is the gradient so and is found as m in the equation y=mx + c

so 4 is the slope and the y intercept is where x= 0 so y = 2

The distribution of sample means will be normal under the following circumstances: if the population distribution is normal or if the sample size is greater than 30. This is represented by option (d).

The distribution of sample means is a probability distribution that represents the means of all possible samples that can be drawn from a population.

Know more about the Central Limit Theorem

https://brainly.com/question/18403552

#SPJ11

It's important to follow the order of operations to ensure accurate calculations. the correct answer to the calculation 5.25 + 41.8 + 34.1 is 81.15.

To perform the calculation using the correct order of operations, we need to follow the rules of precedence, also known as the PEMDAS rule. PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).

Let's break down the given expression step by step:

5.25 + 41.8 + 34.1

According to the PEMDAS rule, we need to start with any calculations inside parentheses, but there are no parentheses in this expression. Next, we move to addition and subtraction from left to right.

5.25 + 41.8 equals 47.05.

Now we add 34.1 to the result:

47.05 + 34.1 equals 81.15.

Therefore, the correct answer to the calculation 5.25 + 41.8 + 34.1 is 81.15.It's important to follow the order of operations to ensure accurate calculations.

To learn more about calculation click here:

brainly.com/question/11845646

#SPJ11

there are 1,320 different ways in which the winners can be drawn in the lottery game.

To determine the total number of different ways in which the three grand prize winners can be drawn, we can use the formula for combinations.

The number of ways to choose r items from a set of n items is given by the formula

nCr = n! / (r! × (n - r)!)

where n! represents the factorial of n, or n × (n-1) × (n-2) × ... × 2 × 1, and r! represents the factorial of r.

For the first prize, there are 12 possible winners, so there are 12 ways to choose the first prize winner.

For the second prize, there are 11 remaining finalists, since the first prize winner cannot win the second prize. So, there are 11 ways to choose the second prize winner.

For the third prize, there are 10 remaining finalists, since the first and second prize winners cannot win the third prize. So, there are 10 ways to choose the third prize winner.

The total number of different ways to choose the three grand prize winners is the product of the number of ways to choose each prize

12 × 11 × 10 = 1,320

Learn more about combination here

brainly.com/question/13003667

#SPJ4

Answer:

MO = 17

Step-by-step explanation:

First, you need to define what if the unknown x.

segment MN and NO are equal to MO.

thus, your equation for the combination is x +8

Now set the values equal to each other

x + 8 = 3x - 10 (subtract x from both sides)

8 = 2x - 10 ( get your x value alone, add 10 to both sides)

18 = 2x (simplfy)

x = 9

Now plug x value into MO

3 (9) - 10 = 17

Check with opposing equation:

9 + 8 = 17 √

Answer:

x^3 + 4x^2 - 7x - 10

Step-by-step explanation:

To solve this we're going to use Polynomial multiplication, starting by multiplying (x-2)(x+1) = x^2 - 2x + x - 2 = x^2 - x - 2. Next, we will multiply (x^2 - x - 2)(x+ 5) = x^3 + 5x^2 -x^2 - 5x -2x -10 = x^3 + 4x^2 - 7x - 10.

Answer:

bro its b

Step-by-step explanation:

Answer:

141 Degrees

Step-by-step explanation:

Sum of interior angles of a polygon = \((n-2) \times 180^{\circ}\)

(where n is the number of sides)

The given figure has 8 sides, therefore:

⇒ sum of interior angles = (8 - 2) × 180°

                                          = 6 × 180°

                                          = 1080°

To find x, sum all the given angles, equate to 1080°, then solve for x:

⇒ x + 162 + (x - 12) + (x + 30) + x + 133 + (x + 16) + 126 = 1080

⇒ 5x + 455 = 1080

⇒ 5x = 625

⇒ x = 125

Therefore, (x + 16) = 125 + 16 = 141°

In this case, the experimental probability is D. 0.860

First, note that Experimental probability, also known as Empirical probability, is founded on real experiments and adequate documentation of events.

In the table we can see that he rolled the cube 1000 times, and he recorded that 140 of those times he rolled a 5.

Then, the probability of rolling a 5 will be equal to:

P1 = 140/1000 = 0.14

Now, the probabilty of NOT rolling a 5, is equal to the rest of the probabilities, this is:

P2 = 1 - 0.14 = 0.86

then the correct option is D

Learn more about experimental probability at:

https://brainly.com/question/8652467

#SPJ1

Full Question:

Although part of your question is missing, you might be referring to this full question:

Jimmy rolls a number cube multiple times and records the data in the table above. At the end of the experiment, he counts that he had rolled 140 fives. Find the experimental probability of not rolling a five, based in Jimmy’s experiment. Round the answer to the nearest thousandth.

A. 0.140

B. 0.167

C. 0.667

D. 0.860

Answer:

The value of where a digit is in the number.

Step-by-step explanation:

The value of where a digit is in the number. Example: In 352, the 5 is in the "tens" place, so its place value is 10. Example: In 17.591, the 9 is in the "hundredths" place, so its place value is 0.01.

Happy Holidays!!

Answer:

232 in^2

Step-by-step explanation:

This rectangle has 6 surfaces:

Front: 10 x 8 = 80

Back: 10 x 8 = 80

Top: 10 x 2 = 20

Bottom: 10 x 2 = 20

Side: 8 x 2 = 16

Side: 8 x 2 = 16

Total surface area: 232 in^2

Answer:

x = 11

Step-by-step explanation:

The value of α that would generate the most stable forecast is 0.10.

Exponential smoothing is a forecasting method that uses a weighted average of past observations to predict future values. The weight of each past observation decreases exponentially as it gets older. The value of the smoothing constant, α, determines how quickly the weights decay and thus how much emphasis is placed on recent observations versus past observations. A larger value of α means more weight is given to recent observations, resulting in a forecast that is more responsive to changes in the data but also more volatile. Conversely, a smaller value of α means less weight is given to recent observations, resulting in a forecast that is more stable but less responsive to changes in the data.

Therefore, in order to generate the most stable forecast, we would want to choose a smaller value of α. Among the options given, the value of α that would generate the most stable forecast is 0.10. This would give relatively less weight to recent observations and result in a smoother, less volatile forecast. However, it is important to note that the optimal value of α depends on the specific time series being forecasted and must be chosen based on empirical evaluation of the forecast accuracy.

Know more about forecast here,

https://brainly.com/question/31864284

#SPJ11

The value of y in the equation 2y + 7 = "-question" can be determined by solving the equation.

To find the value of y in equation 2y + 7 = "-question," we need to isolate y on one side of the equation. The first step is to subtract 7 from both sides to eliminate the constant term. This yields 2y = "-question" - 7. Next, we can simplify the right side of the equation by performing the necessary arithmetic. Finally, we divide both sides of the equation by 2 to isolate y. The result will be the value of y in terms of "-question" and 7. It is important to note that without knowing the specific value of "-question," we cannot determine the exact numerical value of y.

Learn more about Equation

brainly.com/question/13763238

#SPJ11

The correct answer is option D: 133.4 ft. To find the height of the kite above the ground, we can use the trigonometric function tangent (tan).  

the trigonometric function tangent (tan) which is defined as the ratio of the opposite side to the adjacent side in a right triangle.

In this case, the string of the kite represents the hypotenuse of the right triangle, and the angle of elevation (55 degrees) represents the angle between the ground and the string. The height of the kite above the ground is the opposite side.

Using the formula:

tan(angle) = opposite / adjacent

We have:

tan(55 degrees) = height / 166 ft

Solving for the height:

height = tan(55 degrees) * 166 ft ≈ 133.4 ft

The height of the kite above the ground, rounded to the nearest foot, is approximately 133.4 ft

To know more about the trigonometric function tangent (tan) visit :

https://brainly.com/question/30283044

#SPJ11

Answer:

C

Step-by-step explanation:

ratio of pigs to chickens = 4/28, which simplifies to 1/12

ratio of goats to chickens = 12/28, which simplifies to 3/7

ratio of cows to goats = 8/12, which simplifies to 2/3

ratio of pigs to cows = 4/8, which simplifies to 1/2

since 2/3 is the largest, the answer is C

Answer:

x = 23°

Step-by-step explanation:

In a parallelogram, sum of consecutive angles (adjacent angles) are supplementary.

    m∠J + m∠K = 180

3x + 7 + 5x - 11 = 180

3x + 5x + 7 - 11 = 180

Combine like terms,

            8x - 4   = 180

Add 4 to both sides,

                     8x  = 180 + 4

                     8x = 184

Divide both sides by 8,

                       x = 184÷ 8

                       x = 23°

m∠J = 3x + 7

        = 3*23 + 7

        = 69 + 7

        = 76°

m∠K = 5x -11

         = 5*23 - 11

         =115 - 11

          = 104°

a.  The sample size must be at least 8 to have a 95% confidence interval estimate for the gain in a circuit on a semiconductor device with a length of not greater than 60. b. The sample size must be at least 22 to have a 99% confidence interval estimate for the gain in a circuit on a semiconductor device with a length of not greater than 60.

a. The formula for finding the width of a confidence interval is:
Width of confidence interval = 2 × Zα/2 × σ/√n

where Zα/2 is the Z-score for the desired level of confidence.

For 95% confidence level, Zα/2 = 1.96.

Width of 95% confidence interval = 60σ = 30Zα/2 = 1.96

Substituting the given values in the formula:60 = 2 × 1.96 × 30/√nn = (2 × 1.96 × 30/60)²n = 7.84≈ 8

Therefore, the sample size must be at least 8 to have a 95% confidence interval estimate for the gain in a circuit on a semiconductor device with a length of not greater than 60.

b. For a 99% confidence level, Zα/2 = 2.576

Width of 99% confidence interval = 60σ = 30Zα/2 = 2.576

Substituting the given values in the formula:

60 = 2 × 2.576 × 30/√nn = (2 × 2.576 × 30/60)²n = 21.16≈ 22

Therefore, the sample size must be at least 22 to have a 99% confidence interval estimate for the gain in a circuit on a semiconductor device with a length of not greater than 60.

Learn more confidence interval here https://brainly.com/question/31420373

#SPJ11

Answer: No solutions

Step-by-step explanation:

-2m + 5n = 6

-4m + 10n = 14

There are no solutions because when simplified down, the second equation is -2m + 5n = 7 which is not possible.

Polynomial \($-1+x^3-\frac{1}{3} x^3$\) and its conventional form, \(x^5-\frac{x^2}{3}-1$$\) , are both used.

\($$-1+x^5-\frac{1}{3} x^2=x^5-\frac{x^2}{3}-1$$\)

steps

\($$-1+x^5-\frac{1}{3} x^2$$\)

\(\begin{aligned}& \frac{1}{3} x^2=\frac{x^2}{3} \\& =-1+x^5-\frac{x^2}{3}\end{aligned}\)

rephrase in proper grammar

\(=x^5-\frac{x^2}{3}-1$$\)

The term "polynomial" refers to a mathematical statement of one or more algebraic terms in which the variables are all of non-negative integer powers. Variables, fixed values, and exponents are all present in the terms. The degree 'n' standard form polynomial is Standard form is one method of expressing a polynomial. You must consider each term's degree in order to write any polynomial in standard form.

Next, list each phrase in order of degree, left to right, highest to lowest. An expression that solely uses the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables is said to be a polynomial. Variables, which are sometimes known as indeterminates, and coefficients make up a polynomial.

To learn more about Polynomial refer to :

https://brainly.com/question/1600696

#SPJ1

Answer:

0.6763154335

Step-by-step explanation:

because. 10%is the same as 10 over 100 .because percent means 100. so you say 100÷10=10. then you say 10×14.786. this is how I got the answer.