hlllppppp! brainliest to first
y = -2x + 18
y = 8

Solution for the above system?

brainliest to first!!!!!!!hlpppppp!!!!!!!!!!!

Answer:

Alternativa b

Step-by-step explanation:

Dá para fazer Báskara

Answer:

32

Step-by-step explanation:

So the order of the points is: GHJK

GH = x+10 =JK

HJ=8

JK=2x-4

JK = x+10=2x-4

x+10=2x-4

10+4=2x-x

x=14

GH= 14+10 =24

GJ = GH +HJ = 24+ 8=32

Answer:

x=-25/2, y=-9/4. (-25/2, -9/4).

Step-by-step explanation:

The solution of the given system of linear equation will be x = -2 and y = 3.

A linear equation is an algebraic equation in which each term has an exponent of 1 and, when graphed, the result is always a straight line.

Given are the equations,

y+2x=-1 ⇒ y = -1-2x

y=1/2x+4

Equating the equation,

-1-2x = 1/2x+4

x+8 = -2-4x

5x = -10

x = -2

And, y = -1+4

y = 3

Hence, the value of x and y are -2 and 3 respectively.

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Answer:

100 miles per hour.

Step-by-step explanation:

To solve this we need to divide 5 by 5 to find the answer for 1 hour rather than 5.

5 / 5 = 1

Following the logic of, “what you do to one side, you must do to the other” i will divide 500 by 5.

500 / 5 = 100

Mr B was traveling at 100 miles per hour.

(you should probably tell him to slow down haha)

Answer:

i could be  B

Step-by-step explanation:

if i am wrong sorry

but then A

Answer:

Step-by-step explanation:

Write an exponential function and then find the value when t=7 initial value2000 annual rate:9.2%growth

Exponential growth function

= y = a(1 + r)^t

Solving for y

y = 200(1 + 0.092)⁷

↝ g(x) + f(x) = (4x-2)+(x²+4x)

↝ g(x)+f(x) = 4x-2+x²+4x

↝ g(x)+f(x) = x²+8x-2

Therefore, g(x)+f(x) = x² + 8x - 2

the mile-a-minute weed can grow up to 0.25 inches per hour.

A fraction is a mathematical expression that represents a part of a whole. It is written as a ratio of two numbers, the numerator and the denominator, separated by a horizontal line. The numerator represents the part of the whole that is being considered, while the denominator represents the whole.

Given by the question.

To convert 0.5 ft per day to inches per hour, we can use the following conversion factors:

1 ft = 12 inches (since there are 12 inches in a foot)

1 day = 24 hours (since there are 24 hours in a day)

So, to convert 0.5 ft per day to inches per hour, we can use the following steps: Convert feet to inches:

0.5 ft x 12 inches/ft = 6 inches

Convert days to hours:

1 day = 24 hours, so:

6 inches/24 hours = 0.25 inches per hour

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a) To obtain the potential pressure drop in the wellbore, we can use the hydrostatic pressure equation.

The potential pressure drop is equal to the pressure gradient multiplied by the length of the wellbore. The pressure gradient can be calculated using the equation: Pressure gradient = (density of oil × acceleration due to gravity) × sin(θ), where θ is the deviation angle of the wellbore from horizontal flow. In this case, the pressure gradient would be (48 lbm/ft^3 × 32.2 ft/s^2) × sin(15°). Multiplying the pressure gradient by the wellbore length of 6,000 ft gives the potential pressure drop.

b) To determine the frictional pressure drop in the wellbore, we can use the Darcy-Weisbach equation. The Darcy-Weisbach equation states that the pressure drop is equal to the friction factor multiplied by the pipe length, density, squared velocity, and divided by the pipe diameter. However, to calculate the friction factor, we need the Reynolds number. The Reynolds number can be calculated as (density × velocity × diameter) divided by the oil viscosity. Once the Reynolds number is known, the friction factor can be determined. Finally, using the friction factor, we can calculate the frictional pressure drop.

c) To calculate the in-situ oil velocity, we need to consider the total volume of the pipe, including both oil and gas. The total pipe volume is calculated as the pipe cross-sectional area multiplied by the wellbore length. Subtracting the gas volume from the total volume gives the oil volume. Dividing the oil volume by the total time taken by the oil to flow through the pipe (converted to seconds) gives the average oil velocity.

d) The flow regime of the two-phase flow can be determined based on the oil and gas mixture properties and flow conditions. Common flow regimes include bubble flow, slug flow, annular flow, and mist flow. These regimes are characterized by different distribution and interaction of the oil and gas phases. To determine the specific flow regime, various parameters such as gas and liquid velocities, mixture density, viscosity, and surface tension need to be considered. Additional information would be required to accurately determine the flow regime in this scenario.

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Answer:

y=5x+33

Step-by-step explanation:

y-y1=m(x-x1)

y-8=5(x-(-5))

y-8=5(x+5)

y=5x+25+8

y=5x+33

The insertion sort algorithm will make a total of 10 comparisons to sort the list [4, 5, 1, 2, 3] by comparing each element with the elements on its left side to find its correct position.

To sort the list [4, 5, 1, 2, 3] using insertion sort, we count the number of comparisons made during the sorting process.

In insertion sort, each element is compared with the elements on its left side to find its correct position in the sorted portion of the list.

1. Initially, the first element 4 is considered sorted.

2. The second element 5 is compared with 4. (1 comparison)

3. The third element 1 is compared with 5 and then with 4. (2 comparisons)

4. The fourth element 2 is compared with 5, 4, and 1. (3 comparisons)

5. The fifth element 3 is compared with 5, 4, 2, and 1. (4 comparisons)

Therefore, the insertion sort will make a total of 1 + 2 + 3 + 4 = 10 comparisons to sort the given list [4, 5, 1, 2, 3].

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Answer:

y=8x+2

Step-by-step explanation:

the slope is 8 and the y intercept is 2

the slope is 8 dollars the increase of the price per hour. the yintercept is the amount she get for 0 hours (2 dollars)

1,10

2,18

8/1 is 8

10=8*1+b

10=8+b

2=b

Answer:

\(3x + 12y = 120\)

If this problem needs solved like the other one I answered with the reserved seats and general admission, it is done the exact same way as that one.

Calculating the cost of 4.25 kilogram(kg) is £2.38, by multiplying it by 4.25 kg by 1 kg.

Costs are the expenses incurred in the manufacture, marketing, or preparation of a good or asset for regular use. In other terms, it's the cost incurred to produce a good, buy inventories, sell goods, or prepare equipment for use in a commercial activity.

Given,

2.5 kg cost  £1.40 i.e,

2.5 kg = £1.40

For 1 kg= \(\frac{1.40}{2.5}\)

= £0.56

To find the cost of 4.25 kg:

Then,

1 kg = £0.56

4.25 kg = 0.56 x 4.25

= £2.38

£2.38 is the cost of 4.25kg after calculating it.

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Based on the given scenario, the following measurements are accurate:

1. The distance from the man's feet to the base of the monument is 185√3 feet.

2. The distance from the man's feet to the top of the monument is 1,110 feet.

The first accurate measurement states that the distance from the man's feet to the base of the monument is 185√3 feet. This measurement indicates the length of one of the sides of the triangle formed by the man, the base of the monument, and the top of the monument.

The second accurate measurement states that the distance from the man's feet to the top of the monument is 1,110 feet. This measurement represents the height of the monument from the man's position.

The other options provided in the scenario are not accurate based on the given information. The statement that the distance from the man's feet to the top of the monument is 370√3 feet contradicts the previous accurate measurement, which states it as 1,110 feet. Similarly, the statement that the distance from the man's feet to the base of the monument is 277.5 feet conflicts with the previous accurate measurement of 185√3 feet.

Regarding the last statement, it is not possible to determine from the given information whether the segment representing the monument's height is the longest segment in the triangle. The lengths of the other sides of the triangle are not provided, so we cannot make a comparison to determine the longest segment.

To summarize, the accurate measurements based on the scenario are the distance from the man's feet to the base of the monument (185√3 feet) and the distance from the man's feet to the top of the monument (1,110 feet).

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Answer:

Both rectangles and squares have four sides of equal length.

Step-by-step explanation:

Rectangle and square are the geometrical figures having four sides. They are the quadrilaterals with four sides. A rectangle is the quadrilateral in which opposite sides are equal. In a square all the sides are of equal length. The sides of both the rectangle and square are parallel. All angles form the right angles.

The closed loop system is stable since all the elements in the first column have the same sign and are positive. Therefore, the correct option is Yes.

Using Routh's method for stability, let us investigate whether this closed loop system is stable or not. Since the polynomial equation provided is:

$$1+G(s)H(s)=4s^5+2s^4+6s^3+2s^2+s-4$$

To examine the stability of the closed loop system using Routh's method, the Routh array must first be computed, which is shown below.

$\text{Routh array}$:

$$\begin{array}{|c|c|c|} \hline s^5 & 4 & 6 \\ s^4 & 2 & 2 \\ s^3 & 1 & -4 \\ s^2 & 2 & 0 \\ s^1 & -2 & 0 \\ s^0 & -4 & 0 \\ \hline \end{array}$$

If all of the elements in the first column are positive, the system is stable.

The closed loop system is stable since all the elements in the first column have the same sign and are positive. Therefore, the correct option is Yes.

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 (a)the expected value of \(e^(3Y/2)\) does not exist.

The mean of Y does not exist. Therefore, we cannot compute the variance of Y.

a. To find\(E(e^(3Y/2)),\) we need to use the definition of the expected value for a continuous random variable:

E(e^(3Y/2)) = ∫ e^(3y/2) f(y) dy

where f(y) is the given density function. Since f(y) is only non-zero for y > 0, we can restrict our integration to that region:

E(e^(3Y/2)) = ∫ e^(3y/2) ey dy , from 0 to infinity

= ∫_0^∞ e^(5y/2) dy

= (2/5) * e^(5y/2) | from 0 to ∞

= (2/5) * ∞ = ∞

So the expected value of \(e^(3Y/2)\) does not exist.

b. To find the moment generating function for Y, we use the definition:

M(t) = E(e^(tY)) = ∫ e^(ty) f(y) dy

where f(y) is the given density function. For y < 0, f(y) is zero, so we can restrict our integration to the range y ≥ 0:

M(t) = ∫\(_0^∞ e^(ty) ey dy\)

= ∫\(_0^∞ e^((t+1)y) dy\)

= (1/(t+1)) * e^((t+1)y) | from 0 to ∞

= 1/(t+1) * ∞ = ∞ for t < -1

and

M(t) = ∫\(_0^∞ e^(ty) y dy\)

= e^(ty) * y / t | from 0 to ∞

= ∞ for t ≥ 1

Therefore, the moment generating function exists only for -1 < t < 1, and is given by:

M(t) = 1/(t+1) for -1 < t < 1.

c. To find the variance of Y, we first need to find the mean or expected value of Y:

E(Y) = ∫ y f(y) dy

= ∫\(_0^∞ y^2 dy\)

= ∞

So the mean of Y does not exist. Therefore, we cannot compute the variance of Y.

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the simplified rational expression for the total time of Louis' trip is 1.625t. To write the rational expression for the total time of Louis' trip, we need to first find his walking and jogging rates. If Louis walks 2 miles to his friend's house, then his walking rate is 2 miles divided by the time it takes him to walk that distance. Let's call this time "t".

Walking rate = distance/time = 2/t
When Louis returns home, he jogs at a rate that is 160% of his walking rate. This means his jogging rate is 1.6 times his walking rate.
Jogging rate = 1.6 times walking rate = 1.6(2/t) = 3.2/t
Now that we have Louis' walking and jogging rates, we can write an expression for the total time of his trip. Let's call this time "T".
Total time = time to walk to friend's house + time to jog home
Total time = 2/(2/t) + 2/(3.2/t)
Total time = 2t/2 + 2t/3.2
Total time = t + 0.625t
Total time = 1.625t
Therefore, the simplified rational expression for the total time of Louis' trip is 1.625t.
Let's consider the following terms:
1. Walking rate: r, 2. Jogging rate: 1.6r (160% of his walking rate)
We know that time is equal to distance divided by rate, so we can find the time for each leg of his trip:
- Walking time: 2 miles / r
- Jogging time: 2 miles / (1.6r)
To find the total time of his trip, we simply add these two expressions:
Total time = (2/r) + (2/(1.6r))
To simplify the rational expression, first find the least common denominator (LCD) which is 1.6r:
Total time = (2 * 1.6)/1.6r + 2/r(1.6)
Total time = (3.2 + 2)/1.6r
Total time = 5.2/1.6r
This is the simplified rational expression for the total time of Louis' trip.

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a)The linear equation is C=25n + 2500 to produce n 3000 toys, b) The total cost to produce 3000 toys is $77,500, c) With $32500, a total of 1200 toys can be produced in Pinwheel Industries.

An equation is a mathematical statement with an equal symbol (=) between the algebraic expression. Equations with a degree of one are called linear equations. It is the straight line's equation. Whenever values are substituted for the unknown values in linear equations, the solutions produce values that make the equation true. Since there is only one variable, there is only one solution. For instance, the equation x + 2 = 0 has just one solution, which is x = -2. In the case of the two-variable linear equation, however, the solutions are determined as the Cartesian coordinates of a point on the Euclidean plane.

The three different types of linear equations are: 1) Standard Form

2) The slope intercept form

3)Point Slope Form

How to solve?

A) Linear equation y=mx+b,

C (total cost) = y and n (number of toys) =x.

C=25n + 2500

B) Put n=1750

C= 25(3000) + 2500

C= $77,500

C)

32500= 25n +2500

30000=25n

n = 1200

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Answer:

A

Step-by-step explanation:

Answer:

Step-by-step explanation:

A

Answer:

Step-by-step explanation:

Sure! I'll perform the mathematical operations using the given numbers and apply the rules of precision. Please find the results below:

(9.11) + (6.232)

The sum of 9.11 and 6.232 is 15.342.

(7.4023) x (19)

The product of 7.4023 and 19 is 140.844.

(9.162) - (2.39)

The difference between 9.162 and 2.39 is 6.772.

(0.00482) x (213)

The product of 0.00482 and 213 is 1.02786.

(8.73) / (5.198)

The division of 8.73 by 5.198 is 1.67920734.

(7644) / (0.13)

The division of 7644 by 0.13 is 58,800.

Please note that the results are rounded to the appropriate number of decimal places based on the precision rules.

The value of the expression 13 + |8 + y| if x = 2, y = -3, and z = 1 is 18

From the question, we have the following parameters that can be used in our computation:

x = 2, y = -3, and z = 1

Also, we have

13 + |8 + y|

Substitute the known values in the above equation, so, we have the following representation

13 + |8 + y| = 13 + |8 - 3|

So, we have

13 + |8 + y| = 13 + |5|

Remove the absolute bracket

13 + |8 + y| = 13 + 5

So, we have

13 + |8 + y| = 18

Hence, the solution is 18

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Answer:

5

Step-by-step explanation:

0-6x will be -6x if we divide that six then we will get -30/-6 since minus gets cancelled we will be left with 5

Answer:

Because its near water which attracts precipitation and is a center hit

Step-by-step explanation:

Answer:

-1/2 or -0.5

Step-by-step explanation:

10x +5 = 0

10x = -5

x= -5/10

x= -1/2 or 0.5

Answer:

15

Step-by-step explanation:

Answer:

15 is ur answer.

Step-by-step explanation:

hope it helped <3

Answer:

15.5 kg = 15,500 g

15,500 g ÷ 10.5 g/cm³ = about 1,476.2 cm³

= about 1,480 cm³

Answer: V = 1480 cm³    or     1.48 x 10³ cm³

Step-by-step explanation:

Density formula:

ρ = m/V           where:

ρ =  density =  10.5 g/cm³

m = mass = 15.5 kg

V = Volume

Let's convert 10.5 g/cm³ to kg/cm³ so we can be in same units as mass

(1 kg = 1000 g)

ρ = 10.5 g/cm³ (1 kg / 1000 g)

ρ = .0105 kg/cm³

Plug in and Solve for V

ρ = m/V

.0105 kg/cm³ = 15.5 kg / V             >Cross multiply

(.0105 kg/cm³)V = 15.5 kg               >divide both sides by (.0105 kg/cm³)

V = (15.5 kg) / (.0105 kg/cm³)

V = 1476.19 cm³                                >They only want 3 sig figs

V = 1480 cm³    or     1.48 x 10³ cm³

Evaluating Georgianna's claim using a hypothesis test.The claim is that the average child takes less than 5 years of piano lessons. Therefore, we use a one-tailed hypothesis test with a null hypothesis asH0: µ ≥ 5 versus the alternative hypothesis Ha: µ < 5.

Level of significance is not given, hence we can assume it to be 0.05. Calculating the test statistic as follows:$$t=\frac{\overline{x}-\mu }{s/\sqrt{n}}$$Substituting the given values in the above equation, we get$$t=\frac{4.6-5}{2.2/\sqrt{20}}$$So, t = -1.69, for a one-tailed test (left-tailed) and the degrees of freedom are n-1 = 19. Using the t-distribution table with α = 0.05 and 19 degrees of freedom, the critical value is -1.73, hence, -1.69 falls within the non-rejection region. Therefore, we cannot reject the null hypothesis. There is not enough evidence to support Georgianna's claim.b. Constructing a 95% confidence interval for the number of years students in this city take piano lessons, and interpret it in the context of the data.

The formula for confidence interval for a population mean is Interpretation: We can be 95% confident that the average number of years students in this city take piano lessons falls between 4.01 and 5.19 years.c. Explaining if the results from the hypothesis test and the confidence interval agreeYes, the results from the hypothesis test and the confidence interval agree because we cannot reject the null hypothesis in the hypothesis test. This means that the null hypothesis, H0: µ ≥ 5 is plausible. Further, the 95% confidence interval for the mean number of years students take piano lessons lies completely above the value of 5 years, which is Georgianna's claim. This is in line with the hypothesis test result. Thus, we can conclude that there is no sufficient evidence to support Georgianna's claim.

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Answer:

wat ta heck

Step-by-step explanation:

Do not understand dude