Solve this algebraic expression:
5x-2(3x)

Answer:

91.44 cm

Step-by-step explanation:

2.54 x 12 = 30.48 cm per foot

30.48 x 3 = 91.44cm

The correct answer is 113. To forecast the sales of the ice rink on day 4 using the trend method, we need to determine the trend equation based on the given data points.

The trend equation represents the overall pattern or trend in the sales data and allows us to make predictions for future values.

First, we need to calculate the average increase in sales per day. The average increase is obtained by dividing the total increase in sales over the three days (102 - 80 = 22) by the number of days (3 - 1 = 2). Therefore, the average increase in sales per day is 22 / 2 = 11.

Next, we can use the average increase to forecast the sales for day 4. Starting from the last known sales value (102), we add the average increase to project the sales for the next day. Thus, the forecasted sales for day 4 would be 102 + 11 = 113.

Therefore, the correct answer is 113.

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The values of the variables, the side lengths and the scale factors are calculated below

Question 11

The height is calculated as

Height : 44 = 5 : 4

So, we have

Height/44 = 5/4

Evaluate

Height = 55

Question 12

The length BE is calculated as

BE : 3 = 10 : 12

Evaluate

BE = 4

Question 13

The scale factor of dilation (k) is calculated as

k = B/A

So, we have

k = 6/4

k = 1.5

Question 14

The perimeter of FGH is calculated as

Perimeter = 35 * 6/10

Perimeter = 21

Question 15

The value of x is calculated as

x : 10 = 24 : 16

So, we have

x/10 = 24/16

Evaluate

x = 15

Question 16

The length KL is calculated as

KL : 28 = 3 : 12

Evaluate

KL = 7

Question 17

The value of x is calculated as

x : 9 = 10 : 16

So, we have

x/9 = 10/16

Evaluate

x = 5.625

Question 18

The value of x is calculated as

x : 24 = 15 : 18

Evaluate

x = 20

Question 19

The scale factor of dilation (k) is calculated as

k = A'/A

So, we have

k = 3/1

k = 3

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Answer:

positive (+)

Step-by-step explanation:

- × - = +

+ × - = -

+ × + = +

Answer:

there are 8 numbers, all are negetive and they are multiplied with each-other

we know, (-negative)(-nagative) = positive number

so even quantity of negative numbers multiplied with each-other makes a positive number.

so the sign of the product is +

Step-by-step explanation:

Answer:

19 cents

Step-by-step explanation:

divide 20 by 6

Answer:

3.333333333333 and on

Step-by-step explanation:

When you want to figure this problem out you need to divide the money she spent with the markers so 20/6 and then it would divide to the lowest number possible and then you would get your answer.

Can I be brainliest???

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: 10, 10sqrt(2)

Step-by-step explanation:

The value of each variables are,

x = 10

y = 10√2

We have to given that,

A right triangle is shown in image.

Now, For the value of each variables,

tan 45° = x / 10

1 = x/10

x = 10

By Pythagoras theorem we get;

⇒ y² = x² + 10²

⇒ y² = 10² + 10²

⇒ y² = 100 + 100

⇒ y² = 200

⇒ y = √200

⇒ y = 10√2

Therefore, the value is,

x = 10

y = 10√2

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The fraction of the occupied apartments is 9/10.

In mathematics, a fraction is a symbol for a rational number.

Let a and b be two numbers, then their fraction can be represented as a/b.

Given that,

Total apartments in the building = 200.

Also,

The number of apartments leased by realtor = 180

The fraction of the apartments which is occupied by realtor

= number of apartments leased /Total apartments

= 180 / 200

= 18 / 20

= 9 / 10

The required fraction is 9/10, implies that from each 10 apartments, 9 apartments are occupied.

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Answer:

sorry idont understand

f'(x)Negative Zero Negative Zero Zero Zero Positive Positive

f''(x)Positive Negative Negative Zero Zero Positive Zero__ these two are the answer.

The continuous function f is defined on the closed interval [−5,5]. The graph of f consists of a parabola and two line segments.

Let g be a function such that g′(x)=f(x).The given figure is as follows: the function f is continuous on the closed interval [-5,5].

x-5-3-1-1012345f(x)_______-4_____-3_____-2_____-1______0_______1______2

f'(x)Negative Zero Negative Zero Zero Zero Positive Positive

f''(x)Positive Negative Negative Zero Zero Positive Zero__

f'(x) tells us how much the value of f(x) is changing as x increases, so it is the slope of f(x) function. When x < -3, f(x) is

decreasing since f'(x) is negative.When -3 < x < -1, f(x) is constant since f'(x) is zero.When -1 < x < 2, f(x) is decreasing

since f'(x) is negative.When x > 2, f(x) is increasing since f'(x) is positive.f''(x) tells us how much f'(x) is changing as x

increases. When x < -3, f'(x) is increasing since f''(x) is positive. When -3 < x < -1, f'(x) is decreasing since f''(x) is negative.

When -1 < x < 1, f'(x) is zero since f''(x) is zero. When 1 < x < 3, f'(x) is increasing since f''(x) is positive. The other entries

can be figured out by the same reasoning.

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The equation of the tangent line to the astroid at the point (-3√3, 1) is: y = -(3√3)^(1/3)x - 3(3√3)^(1/3) + 1

To find the equation of the tangent line to the astroid at the point (-3√3, 1), we need to first find the slope of the tangent line.

We can do this by taking the derivative of the equation of the astroid with respect to x, and then evaluating it at the point (-3√3, 1).

Taking the derivative of x²/³ + y²/³ = 4 with respect to x, we get:

(2/3)x^(-1/3) + (2/3)y^(-1/3) * dy/dx = 0

Solving for dy/dx, we get:

dy/dx = (-x^(1/3))/y^(1/3)

Substituting x = -3√3 and y = 1, we get:

dy/dx = (-(-3√3)^(1/3))/(1^(1/3)) = -(3√3)^(1/3)/1

So the slope of the tangent line at the point (-3√3, 1) is -(3√3)^(1/3).

Now we can use the point-slope form of the equation of a line to find the equation of the tangent line. The point-slope form is:

y - y1 = m(x - x1)

Substituting x1 = -3√3, y1 = 1, and m = -(3√3)^(1/3), we get:

y - 1 = -(3√3)^(1/3)(x + 3√3)

Simplifying, the equation of the tangent line to the astroid at the point (-3√3, 1) is:

y = -(3√3)^(1/3)x - 3(3√3)^(1/3) + 1

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The area of this semi-circle with a radius of 10cm will be A=100\(\pi\) Square cm.

The Area of the circle is the area enclosed by the circle in the two-dimensional plane.The formula for the area of the circle is given by:

\(A=\pi r^2\)

here r is the radius of the circle r=10cm

So the area of the circle will be:

\(A=\pi r^2\)

\(A=\pi \times {10}^2\)

\(A=100\pi\ cm^2\)

Hence the area of this semi-circle with a radius of 10cm will be A=100\(\pi\) Square cm.

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

\(\blue{\textsf{\textbf{\underline{\underline{Question:-}}}}\)

          What is the mean of the dataset (10, 5, 7, 9, 5, 18)?

\(\blue{\textsf{\textbf{\underline{\underline{Answer:-}}}}\)

Mean \(\rightarrow\) 9

\(\blue{\textsf{\textbf{\underline{\underline{How to solve:-}}}}\)

               First, add all the numbers together:-

10+5+7+9+5+18

\(\textsf{54}\)

Now divide by how many numbers there are (6):-

54:6=9

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

Answer:

9

Step-by-step explanation:

To find the mean, add up all the numbers and then divide by the number of terms

(10+5+7+9+5+18)

54

There are 6 terms

54/6=9

The mean is 9

Being in the 78th percentile is a positive result, and Li should feel pleased and satisfied with her salary.

Yes, Li should be pleased with her salary. Being in the 78th percentile means that Li's salary is higher than 78% of the salaries reported in the survey. In other words, the majority of recent college graduates earn a lower salary than Li does. This is a positive outcome and indicates that Li is earning more than a significant portion of her peers.

Being in a higher percentile suggests that Li's salary is above average and reflects her market value and the demand for her skills and qualifications. It indicates that she is likely being compensated fairly for her education, experience, and the value she brings to her employer. This can be seen as a validation of her hard work, dedication, and successful entry into the job market.

Moreover, being in the 78th percentile also implies that Li has a higher income relative to a large proportion of individuals her age, which can provide financial stability and opportunities for personal and professional growth.

Overall, being in the 78th percentile is a positive result, and Li should feel pleased and satisfied with her salary.

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Final answer:

The odds against exactly 5 cars passing over the bridge in that time is calculated as 4:21

A probability must be between 0 and 1 (nothing can happen with a greater than 100% likelihood). The chances are not as limited. Odds can be any positive number; for example, a chance of 2/3 is equivalent to odds of 2/1. By simply dividing the favorable number of possibilities by the entire number of possible outcomes, the probability of an occurrence can be determined using the probability formula.

By dividing the odds in the first group by the odds in the second group, the odds ratio is calculated. For many clinicians, odds and odds ratios are difficult to comprehend. Odds are calculated by dividing the likelihood of an event happening by the probability that it won't.

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Answer:

didn't understood the question much sorry

The rectangular form of (4(cis 66°))⁵  is -1024√3/2 - 512i.

To raise the complex number 4(cis 66°) to the power of 5, we can use De Moivre's Theorem.

According to De Moivre's Theorem, (r(cis θ))ⁿ = rⁿ(cis nθ), where r is the magnitude and θ is the argument of the complex number.

In this case, the magnitude of the complex number is 4, and the argument is 66°. Thus, we have:

(4(cis 66°))⁵ = 4 ⁵(cis 5 ˣ 66°) = 1024(cis 330°).

To simplify this answer, we can convert the polar form to rectangular form using the relationship x + yi = r(cos θ + i sin θ):

1024(cis 330°) = 1024(cos 330° + i sin 330°).

Now, we can evaluate the trigonometric functions of 330°:

cos 330° = -√3/2 and sin 330° = -1/2.

Substituting these values back into the rectangular form, we have:

1024(cos 330° + i sin 330°) = 1024(-√3/2 - (1/2)i).

Therefore, the answer in rectangular form is -1024√3/2 - 512i.

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Answer:

200

Step-by-step explanation:

\(p=2\cdot \:79+2\cdot \:21\\2\cdot \:79=158\\p=158+2\cdot \:21\\2\cdot \:21=42\\p=158+42\\p=200\)

Answer:

B. 56.52

Step-by-step explanation:

C = 2πr

Therefore,

56.52 = 2(3.14)(9)

Feel free to message me if you still have questions :)

Given c=78 and ∠α=35°,

a = 44.73896

b = 63.89386

∠β = 55° = 0.95993 rad

h = 36.64801

area = 1,429.27248

perimeter = 186.63282

inradius = 15.31641

circumradius = 39

1. Given the equation:

to solve for x:

b. no solution

2. Given the equation:

to solve for x:

a. all real numbers

3. Given the equation:

to solve for x:

c. 1/4

4. Given the equation:

to solve for x:

b. no solution

Answer:

The first and third.

Step-by-step explanation:

For the first one, you just subtract 52.37 and 46.37 and the answer is 6, so that makes the equation 6=y, which is right. The second one equals 6.75, so that's not what we need. For the third one, you divide by 8 on both sides to isolate y, and that results in y=6, which is right. For the fourth one you subtract by 3.2 on both sides to isolate y and that results in 5.8, which isn't what we need. I think for the last one you meant to type y=4+24, in which case that would be y=28, which isn't what we need.

Answer:

The scores in order from least likely to most likely is 8, 3, 4, and 5.

Step-by-step explanation:

1. Calculate the probability of the spinner adding up to 1, 2, 3, 4, .... 8

You will get:

2 (1/16)

3 (2/16)

4 (3/16)

5 (4/16)

6 (3/16)

7 (2/16)

8 (1/16)

2. Given the scores from the problem, the probability of each number is 3 (2/16), 4 (3/16), 5 (4/16), and 8 (1/16).

3. With this, we can determine the scores in order from least likely to most likely is 8, 3, 4, and 5.

The amount of fencing needed to surround the perimeter of the picnic area of the park is 107 yards. Hence, the second option is the right choice.

In the question, we are informed that the triangle KLM, represents a section of a park set aside for picnic tables. We are also informed that the picnic area will take up approximately 400 square yards of the park.

We are asked for the amount of fencing needed to surround the perimeter of the picnic area of the park.

We know the area of a triangle can be found using the trigonometric area formula, Area = (1/2)ab sin C.

Using this in the given triangle KLM, we get:

Area = (1/2)(KL)(KM)(sin K),

or, 400 = (1/2)(KL)(45)(sin 25°),

or, KL = (400*2)/(45*sin 25°) = 800/(45*0.42262) = 800/19.017822 = 42.0658 ≈ 42 yd.

Thus, we get KL = 42 yards.

Now, the perimeter of the picnic area = the perimeter of the triangle KLM = KL + LM + MK = 42 + 20 + 45 yards = 107 yards.

Thus, the amount of fencing needed to surround the perimeter of the picnic area of the park is 107 yards. Hence, the second option is the right choice.

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Answer: b

Step-by-step explanation:

The SS value for the first, second and third sample is 24, 26 and 18 respectively. Upon dividing the SS value by the sample size minus one, sample variance can be derived.

In the previous question, there were significant differences among the three treatments, partially due to the relatively small sample variances. Now, with the SS (sum of squares) values within each sample doubled, we need to calculate the new sample variances. The values provided in the previous question were 12.00, 13.00, and 8.00.

To calculate the sample variance for each of the three samples, we utilize the formula for variance, which is the sum of squared deviations from the mean divided by the sample size minus one.

For the first sample with a previous variance of 12.00, if the SS value is doubled, the new SS value would be 24.00. To calculate the new sample variance, we divide this SS value by the sample size minus one.

Similarly, for the second sample with a previous variance of 13.00, the doubled SS value would be 26.00. Again, we divide this SS value by the sample size minus one to calculate the new sample variance.

Lastly, for the third sample with a previous variance of 8.00, the doubled SS value would be 16.00. We divide this SS value by the sample size minus one to obtain the new sample variance.

By performing these calculations, we can determine the new sample variances for each of the three samples, which will reflect the changes resulting from the doubled SS values within each sample.

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Answer:

x= 17

y= 8

QPR= 35

QRP= 60

Step-by-step explanation:

Answer:

883.57

Step-by-step explanation:

closet answer I can find

I'm going to assume they are the same angle.

Steps to solve:

(8x - 8) = (7x + 8)

~Add 8 to both sides

8x = 7x + 16

~Subtract 7x to both sides

x = 16

Best of Luck!

Answer:

7 17/99

Step-by-step explanation: