i never understood this!who ever gives me a answer i'll give em 5 stars and a thanks

Step-by-step explanation:

10% more = 110% of the number.

110% of the number = 132

100% of the number = 132 * (10/11) = 120.

The number is 120.

Answer:

is 6 and 4

Step-by-step explanation:

Answer:

5, 8 and 10

Step-by-step explanation: 10 x 8 = 80 x 5 = 400 which is between 375 and 450

The values of x and y in the system of equations, x - y = 5 and 3x - 2y = 12, are: x = 2  y = -3

Given the system of equations:

x - y = 5 --> eqn. 1

3x - 2y = 12 --> eqn. 2

Rewrite equation 1:

x = 5 + y --> eqn. 3

Substitute x for 5 + y into equation 2:

3(5 + y) - 2y = 12

15 + 3y - 2y = 12

15 + y = 12

y = 12 - 15 [subtraction property]

y = -3

Substitute y = -3 into equation 3:

x = 5 + (-3)

x = 2

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We will see that the percentage in which the price decreases is 90%, thus the age is 90 years.

How old is Andrés?

We know that the percentage in which the price decreases is equal to the age of Andrés.

We can write:

P = $4,000 = $40,000*(1 - k)

Where k is the percentage in decimal form.

Solving for k:

k = ($40,000 - $4,000)/$40,000 = 0.9

To obtain the percentage, we multiply by 100%.

0.9*100% = 90%

We conclude that Andrés is 90 years old.

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Answer:

13000 / 8 = 1625

1625 / 5 = 325

325 *3 *6 = 5850

Answer: 5850

Step By Step: First divide 13,000 by 8, giving you 1,625. Divide that by 5,

to get 325. So each machine makes 325 an hour. Multiply That by 3, giving you 975, multiply that by 6, giving you 5,850.

The percentage discount per sack when you buy two sacks is 14.5%

The given parameters are:

The percentage discount is calculated as:

\(Percentage = \frac{Cost - Discount}{Cost} * 100\%\)

This gives

\(Percentage = \frac{15.5 - 13.25}{15.5} * 100\%\)

Evaluate

Percentage = 14.5%

Hence, the percentage discount per sack when you buy two sacks is 14.5%

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Given :   dilation with a scale factor of 3

To find :  Which statement is true

Solution:

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size

if Dilation factor  N then image Size is multiplied  by  N

if Scale factor  < 1 then image get reduced

if scale factor > 1  then image get enlarged

scale factor = 1 lead to Same size image

Here is given that Scale factor of 3

=> image will be enlarged to 3 times the original image

Hence correct option is :

C)Each side in the pre-image is multiplied by three to find the corresponding side length in the image

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As per the measurement the height of the 24U rack is 42 inches.

A rack height measurement refers to the size of the data center equipment that needs to be stored in a server rack.

The most common rack heights are 24U and 42U. These measurements refer to the number of units of 1.75 inches in height that can be accommodated in a server rack.

A 24U rack is 24 units of 1.75 inches high, so the total height of a 24U rack can be calculated by multiplying 24 by 1.75 inches.

Therefore, a 24U rack is 42 inches tall.

This is a standard height measurement for a server rack and is commonly used in data centers.

It is important to note that these measurements are standardized and refer to the size of the equipment that can be stored in the rack, not the actual physical dimensions of the rack itself.

So, when choosing a server rack, it is important to consider the height measurement in relation to the equipment that needs to be stored in it.

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After considering all the given data  we conclude that the upper estimate regarding t= 5 is 74.65 ft/sec, the lower estimate regarding t = 5 is 45.28 ft/sec, the upper estimate regarding t = 3 is 63.18 ft.

It is known that acceleration of the object is measured in ft/sec² and measured every second after the drop for 5 seconds. The acceleration decreases over time because of air resistance.

The upper estimate for the speed when t=5 is 32+19.41+11.77+7.14+4.33= 74.65 ft/sec.

The lower estimate for the speed when t=5 is 19.41+11.77+7.14+4.33+2.63=45.28 ft/sec.

The upper estimate for the distance fallen when t=3 is 32+19.41+11.77=63.18 ft.

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CenterWare's direct labor rate variance is $2,100 unfavorable, indicating that the actual rate paid for labor was higher than the standard rate. The direct labor efficiency variance is $2,500 favorable, suggesting that the company achieved higher productivity than expected. The total variance for direct labor is $400 favorable.

To compute the direct labor rate variance, we need to calculate the difference between the actual rate and the standard rate, and then multiply it by the actual hours worked. The formula for the rate variance is (Actual Rate - Standard Rate) × Actual Hours. In this case, the standard rate is $21.00 per hour, and the actual rate is $18.00 per hour. The actual hours worked are 2,500 DLH. Plugging in these values, we find the direct labor rate variance to be ($18.00 - $21.00) × 2,500 = -$7,500, indicating an unfavourable variance.

To calculate the direct labor efficiency variance, we need to find the difference between the actual hours worked and the standard hours allowed, and then multiply it by the standard rate. The formula for the efficiency variance is (Actual Hours - Standard Hours) × Standard Rate. The standard hours allowed are 2,000 DLH (1,000 pots × 2.0 hours per pot). Substituting the values, we get (2,500 - 2,000) × $21.00 = $10,500, indicating a favorable variance.

The total variance for direct labor is the sum of the rate variance and the efficiency variance. In this case, the total variance is -$7,500 + $10,500 = $3,000, which is favorable, indicating that the company performed better than expected in terms of labor cost and efficiency.

The responsibility for the rate variance generally lies with the purchasing department, as they are responsible for negotiating labor rates and purchasing materials at the standard price. The efficiency variance is typically the responsibility of the production department, as they are accountable for achieving the standard labor hours and maximizing productivity.

The rate variance reflects the difference between the actual rate paid for labor and the standard rate. An unfavorable rate variance suggests that the company paid more for labor than anticipated, which could be due to factors like higher wages or inefficient labor management. Conversely, a favorable rate variance would indicate cost savings in labor.

The efficiency variance measures the productivity of labor and represents the difference between the actual hours worked and the standard hours allowed. A favorable efficiency variance implies that the company achieved higher productivity or used fewer labor hours than expected. It could result from factors such as skilled and efficient labor, improved production processes, or effective workforce management.

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Answer:

π represents the ratio between circumference and diameter and for any circle, its always 3.14. Circumference = pi × diameter, so using your approximation of pi it's 10×3.14 = 31.4cm.

Step-by-step explanation:

The values of g(a + h), g(-a), g(va), 1 a +9(a), and g(a) are - 22 + 2a + 2h, - 22 - 2a, - 22 + 2vaa, 2(- 11 + 10a), and - 22 + 2a, respectively.

The given function is g(x) = –22 + 2x and to find g(a + h), we replace x by a + h in the given function.

g(a + h) = - 22 + 2 (a + h) = - 22 + 2a + 2h

To find g(-a), we replace x by -a in the given function.

g(-a) = - 22 + 2(-a) = - 22 - 2a

To find g(va), we replace x by va in the given function.

g(va) = - 22 + 2(va) = - 22 + 2vaa

To find 1 a + 9(a), we replace x by a + 9a in the given function.

g(a + 9a) = - 22 + 2 (a + 9a) = - 22 + 20a = 2(- 11 + 10a)

To find g(a), we replace x by a in the given function.

g(a) = - 22 + 2a

Therefore, the values of g(a + h), g(-a), g(va), 1 a +9(a), and g(a) are - 22 + 2a + 2h, - 22 - 2a, - 22 + 2vaa, 2(- 11 + 10a), and - 22 + 2a, respectively.

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Answer:

id.k hunnybut than you

Step-by-step explanation:

Answer:

\(f^{-1}\)(x) = \(\frac{x-1}{2}\)

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = 2x + 1 ( subtract 1 from both sides )

y - 1 = 2x ( divide both sides by 2 )

\(\frac{y-1}{2}\) = x

Change y back into terms of x with x = \(f^{-1}\)(x) , thus

\(f^{-1}\)(x) = \(\frac{x-1}{2}\)

Using the concepts of the mean and of the mean absolute deviation, the correct option is given as follows:

Last month, the amount of rain that fell each day varied less than the month before.

In this problem, we have that:

Due to the lower mean absolute deviation combined with the higher mean, the amount varied less than the month before, hence the last option is correct.

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The hotel had 289 guests on the day in question. The z-score is a measure of how many standard deviations a data point is away from the mean of the distribution.

In this case, we are given that the number of guests in a hotel per day follows a normal distribution with a mean of 220 and a standard deviation of 30, and that the z-score of the number of guests on a particular day was 2.3.

Using the formula for z-score, we have:

z = (x - mu) / sigma

where x is the number of guests on the given day, mu is the mean of the distribution, and sigma is the standard deviation of the distribution.

Substituting the given values, we have:

2.3 = (x - 220) / 30

Multiplying both sides by 30, we get:

69 = x - 220

Adding 220 to both sides, we get:

x = 289

Therefore, the hotel had 289 guests on the day in question.

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True.

if y is not the zero vector, then there exists a non-zero vector v in the original vector space that is orthogonal to y.

If y is in a subspace W as well as its orthogonal complement Wâ¥, then y is orthogonal to every vector in W as well as every vector in Wâ¥. Since W and W⥠are complements, every vector in the original vector space can be written uniquely as the sum of a vector in W and a vector in Wâ¥. Since y is orthogonal to every vector in W and every vector in Wâ¥, it must be orthogonal to every vector in the original vector space.

Therefore, if y is not the zero vector, then there exists a non-zero vector v in the original vector space that is orthogonal to y. But then v would belong to both W and Wâ¥, which is impossible since W and W⥠are orthogonal complements and their intersection is only the zero vector.

Hence, it follows that if y is in a subspace W as well as its orthogonal complement Wâ¥, then y must be the zero vector.

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Answer:

It's false.... correct is a2+2ab+b2

Step-by-step explanation:

This cannot be factored anymore although. when we try to substitute a with 5 and b with 2, the answer in the right hand side of the equation is -9.

That's why it's false.

Those two trains met 4 hours after 1 pm or at 5 pm. They met at 350 miles from train A's starting point.

The relation between distance, speed, and time is given by:

distance = speed x time

In the given problem:

Train A leaf at 12.00 pm, with

speed = 70 mph

Since train B left at 1 pm, by the time train B left, train 1 has travelled a distance of:

distance train A = 70 mph x 1 hour = 70 miles.

Hence, when train A and train B left at 1 pm, they are 550 - 70 = 480 miles apart.

Let

sA = distance travelled by train A since 1 pm

sB = distance travelled by train B since 1 pm

Hence,

sA = 70 t

sB = 50 t

When they met:

sA + sB = 480

70t + 50t = 480

120t = 480

t = 480/120 = 4 hours

Therefore, the met at 5 pm. At that time, train A has travelled 5 hours and its position is:

distance = 70 x 5 = 350 miles from its starting point.

Your question seems incorrect, most probably the correct question was:

Two trains heading toward each other from 550 miles apart one leaves at noon with a speed of 70 mph and the other leaves at 1 with a speed of 50 mph when they meet how far are they from train a starting point

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Answer:

6

Step-by-step explanation:

Trust me it is

The value of the segment RS will be equal to 6 units.

A line segment in geometry is a section of a line that has two clearly defined endpoints and contains every point on the line that lies within its confines.

Given that point, S is on line segment {RT} and ST=2 and RT=8. The length of the segment RS will be calculated as below:-

RT is the total length and the sum of RS and ST. The expression can be written as:-

RS = RT - ST

RS = 8 - 2

RS = 6

Therefore, the value of the segment RS will be equal to 6 units.

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Answer:

rate = 5/6 miles    per hour

Step-by-step explanation:

Givens

distance = 2/3 mile

time = 4/5 hours

Formula

rate = distance / time

Solution

Rate = 2/3 // 4/5                         Turn the denominator upside down and multiply

Rate = 2/3 * 5/4

Rate = 10 / 12                              Divide the denominator and numerator by 2

Rate = 5/6

To find the average rate of change of a function from x1 to x2, you need to calculate the difference in the function's values at x1 and x2, and divide it by the difference in the x-values. The formula for average rate of change is (f(x2) - f(x1)) / (x2 - x1).

The average rate of change measures the average rate at which a function is changing over a given interval. To calculate it, you subtract the function's values at the starting point (x1) and ending point (x2), and then divide it by the difference in the x-values. This gives you the average rate of change for the interval from x1 to x2.

Example: Let's say we have a function f(x) = 2x + 3. To find the average rate of change from x1 = 1 to x2 = 4, we substitute these values into the formula: (f(4) - f(1)) / (4 - 1). Simplifying, we get (11 - 5) / 3 = 6 / 3 = 2. Therefore, the average rate of change of the function from x1 = 1 to x2 = 4 is 2.

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Answer:

The scale factor is 4

Step-by-step explanation:

This question requires an attachment; I'll answer this question using the attached figure

From the attachment

Length OA = 3 units

Length OA' = 3 units + 9 units

Length OA' = 12 units

Scale Factor is calculated as follows;

\(Scale\ Factor = \frac{New\ Side}{Original\ Side}\)

Given that the original shape is ABC, the original side will be OA

Hence, Original Side = 3 units

New Side = OA' = 12 units

The formula becomes

\(Scale\ Factor = \frac{12\ units}{3\ units}\)

\(Scale\ Factor = 4\)

Hence, the scale factor is 4

Answer:

4

Step-by-step explanation:

Just clarifying

Both y(t) = 0 and y(t) = (1/16)t^4 are solutions to the initial value problem y' = t * y^(1/2), where y(0) = 0.

To verify if a function is a solution to a differential equation, we need to substitute it into the equation and check if it satisfies both the equation and the initial condition.

For y(t) = 0:
y'(t) = t * (0)^(1/2) = 0
Since y'(t) = 0, this satisfies the differential equation. Additionally, y(0) = 0 satisfies the initial condition.

For y(t) = (1/16)t^4:
y'(t) = t * [(1/16)t^4]^(1/2) = t * [(1/16)^(1/2) * t^2] = (1/16)t^3
This also satisfies the differential equation. And y(0) = 0 is satisfied as well.

The fact that both y(t) = 0 and y(t) = (1/16)t^4 are solutions to the initial value problem does not contradict any theorem. It simply means that there are multiple solutions to the differential equation.

The existence of multiple solutions is possible and consistent with the nature of certain differential equations, and it is not contradictory as long as each solution satisfies the equation and the initial condition.

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Answer:

If you are solving for V, the answer is \(v = 1, -1\)

Step-by-step explanation:

Take the root of both sides and solve.

Hope this helps!

Answer:

it should be cost, because when there is more quantity of something there will be less price.

The probability that a truck drives between 99 and 128 miles in a day is 0.7734 rounded to four decimal places.

Standard deviation is a statistical measurement that depicts the average deviation of each value in a dataset from the mean value. It tells you how much your data deviates from the mean value. It represents the typical variation between the mean value and the individual data points.

The formula for the probability that a truck drives between 99 and 128 miles in a day is:

\(Z = (X - \mu) /\sigma\)

where, X is the number of miles driven per day; μ is the mean of the number of miles driven per day; σ is the standard deviation of the number of miles driven per day. The value of Z for 99 miles driven per day is:

\(Z = (99 - 120) / 11 = -1.91\)

The value of Z for 128 miles driven per day is:

\(Z = (128 - 120) / 11 = 0.73\)

Using a standard normal distribution table or calculator, the probability of a truck driving between 99 and 128 miles per day is:

\(P(-1.91 < Z < 0.73) = 0.7734\)

Therefore, the probability that a truck drives between 99 and 128 miles in a day is 0.7734 rounded to four decimal places.

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Answer:

Step-by-step explanation:

I'm assuming this is linear and that there is no special on a larger order of wings. To find the unit price of each piece, divide $28.80 by 16 to get that each piece cost $1.80 (that's a lot for a single chicken wing. That better be one BIG chicken...). To find the cost of 9 wings, multiply 9 by $1.80 to get $16.20

The rule of three is a way to solve problems of proportionality between three known values and one unknown. It establishes a relationship of linearity, proportionality, between the values involved.

Chicken Wings             Price

     16------------------------$28.80

      9-----------------------------x

First, multiply the number of wings purchased by the given price, divided by the number of wings purchased.

We solve

Answer: 9 wings would cost a total of $16.2