PLEASE HELPP the problem will be in the picture

Answer:

here is the answer I simply don't the answer to

Step-by-step explanation:

a) 2 square.

b)because there is two k's

The coordinates for the other endpoint of the line segment will be (-4,-9).

What are coordinates of a line segment?

The location of a line segment on the coordinate plane is defined by two endpoints whose coordinates are known. The line links the two endpoints but does not extend beyond them. It is a segment (piece) of a line.

This is the same as the definition of a line segment in ordinary plane geometry, the only difference being that we know the coordinates of the points involved.

Coordinates - Coordinates are the components of an ordered pair. In an ordered pair, the first number is called the x-coordinate and the second number is called the y-coordinate.

Now

Given,

One endpoint (x2,y2) having coordinates= (8,-5)

Let other endpoint be = (x1,y1)

Midpoint (x, y) = (2,-7)

Therefore,

x=(x1+x2)/2 and y=(y1+y2)/2

x1=2x-x2             y1=2y-y2

x1=4-8                 y1=-14+5

x1=-4                   y1=-9

Hence, other endpoint is (4,-9).

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Answer:

2A=54°

2B=36°

Step-by-step explanation:

2A=x+18

2B=x

x+x+18=90

2x=90=18

2x=72

x=36

2A=x+18=36+18=54

2B=x=36

Answer:

I can't decide

Step-by-step explanation:

Answer:

Mine is one piece and kumo desu nani ga i love it lol

Step-by-step explanation:

Answer:

Your answer is going to be point W.

Your welcome

Answer: Your answer is Point W, my brainly friends

Step-by-step explanation:

The intervals of concavity for f(x) = 3 cos x, with 0 < x < 21, are (0, π/2) and (3π/2, 2π).

To find the intervals of concavity for f(x) = 3 cos x, we need to analyze the second derivative of the function.

First, let's find the second derivative of f(x):

f'(x) = -3 sin x (derivative of cos x)

f''(x) = -3 cos x (derivative of -3 sin x)

Now, we can analyze the concavity of f(x) by considering the sign of the second derivative:

When x ∈ (0, π/2): In this interval, cos x > 0, so f''(x) < 0. The second derivative is negative, indicating concavity downwards.

When x ∈ (π/2, 3π/2): In this interval, cos x < 0, so f''(x) > 0. The second derivative is positive, indicating concavity upwards.

When x ∈ (3π/2, 2π): In this interval, cos x > 0, so f''(x) < 0. The second derivative is negative, indicating concavity downwards.

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Answer:

The sum of the area is 9800 m^2

Step-by-step explanation:

( A= L x W )

Helens shop, A=(60m)x(80m)=4800 m^2

Parking lot,  A=2W x W = 2(50m) x (50m)=5000 m²

The sum is 9800 m^2.

Answer:

14.2%

Step-by-step explanation:

85+70= 155

155=100%

22=?

22×100%÷155

= 14.1935

hence answer is 14.2%

Answer:

they have gained 3 yards

Step-by-step explanation:

they were at -3 then gained 8 which put them at 5 then lost 2 which put them at 3

The answer is 1/2 CB , because CB is the segment parallel to RS. And since the midpoints are joined it must be half

Answer:

Step-by-step explanation:5 pounds

35/13.3=2.63. 1.9x2.63=5kg

The constant of proportionality is 20 and y is equal to 8, x is equal to 2.5.

If y is inversely proportional to x, then we can write:

y = k/x

where k is the constant of proportionality.

To find the value of k, we can use the given information that y is equal to 10 when x is equal to 2.

Substituting these values, we get:

10 = k/2

Multiplying both sides by 2, we get:

k = 20

Therefore, the constant of proportionality is 20.

Now, we can use the equation y = k/x and the value of k to find the value of x when y is equal to 8.

Substituting y = 8 and k = 20, we get:

8 = 20/x

Multiplying both sides by x, we get:

8x = 20

Dividing both sides by 8, we get:

x = 2.5

Therefore, when y is equal to 8, x is equal to 2.5.

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The expected value of the sample mean of mpg derived from a random sample of four passengers is 30.5 mpg.

The expected value of the sample mean can be calculated using the formula

E(x) = μ

where x is the sample mean, and μ is the population mean.

In this case, the population mean is given as 30.5 mpg. The standard deviation of the population is also given as 4.1 mpg.

The standard deviation of the sample mean can be calculated using the formula

σx = σ/√n

where σ is the population standard deviation and n is the sample size.

Substituting the given values, we get:

σx = 4.1/√4 = 2.05

So the expected value of the sample mean is

E(x) = μ = 30.5 mpg.

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Answer:

\(8 \\ = 40 + 24 \\ = 64\)

I hope I helped you^_^

Answer:

\(8 \times 8 = 5eights + 3eight \\ 8 \times 8 = 40 + 24 \\ 8 \times 8 = 64 \\ thank \: you\)

Answer:

x1 ≈ 0,84; x2 ≈ 4,16

Step-by-step explanation:

Find the discriminant and then both values of x according to the formulas (I added a photo of my solution)

The sum of infinite geometric series is

\(25 - 10 + 4 - \frac{8}{5}\)

is \(\frac{125}{7}\)

What is geometric series?

The series where the ratio between the consecutive terms of the series are same is called geometric series.

The sum of infinite geometric series is

\(25 - 10 + 4 - \frac{8}{5}\)

Here

common ratio (r) = \(-\frac{10}{25} = -\frac{2}{5}\)

Here r lies between -1 and 1

So the given geometric series converges

First term is 25

Sum =

\(\frac{25}{1 -(-\frac{2}{5})}\\\\\frac{25}{\frac{5+2}{5}}\\\\\frac{25}{\frac{7}{5}}\\\\\frac{25 \times 5}{7}\\\\\frac{125}{7}\)

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(a)The range of the given set of measurements is 4.

(b)The sample mean of the given set of measurements is approximately 5.625.

(c)The sample variance of the given set of measurements is approximately 2.337768, and the sample standard deviation is approximately 1.529.

(a) The range is the difference between the largest and smallest values in the set of measurements. In this case, the largest value is 8 and the smallest value is 4, so the range is 8 - 4 = 4.

To calculate the range, we subtract the smallest value from the largest value. In this case, the largest value is 8 and the smallest value is 4.

Range = Largest value - Smallest value

Range = 8 - 4

Range = 4

The range provides a simple measure of the spread or dispersion of the data. In this case, the range tells us that the values range from the smallest value of 4 to the largest value of 8, with a difference of 4 between them.

(b) The sample mean, denoted as x, is the sum of all the measurements divided by the total number of measurements.

To calculate the sample mean, we add up all the measurements and then divide by the total number of measurements. In this case, we have 8 measurements.

Sum of measurements = 4 + 4 + 7 + 6 + 4 + 6 + 6 + 8 = 45

Sample mean = Sum of measurements / Total number of measurements

Sample mean = 45 / 8

Sample mean ≈ 5.625

The sample mean represents the average value of the measurements and provides a measure of central tendency.

(c) The sample variance, denoted as s^2, measures the variability or dispersion of the data points around the sample mean. It is calculated as the average of the squared differences between each measurement and the sample mean.

To calculate the sample variance, we first calculate the squared difference between each measurement and the sample mean. Then, we average those squared differences.

Squared difference for each measurement:

(4 - 5.625)^2 = 2.890625

(4 - 5.625)^2 = 2.890625

(7 - 5.625)^2 = 1.890625

(6 - 5.625)^2 = 0.140625

(4 - 5.625)^2 = 2.890625

(6 - 5.625)^2 = 0.140625

(6 - 5.625)^2 = 0.140625

(8 - 5.625)^2 = 5.390625

Sum of squared differences = 2.890625 + 2.890625 + 1.890625 + 0.140625 + 2.890625 + 0.140625 + 0.140625 + 5.390625 = 16.364375

Sample variance = Sum of squared differences / (Total number of measurements - 1)

Sample variance = 16.364375 / (8 - 1)

Sample variance ≈ 2.337768

The standard deviation, denoted as s, is the square root of the sample variance.

Sample standard deviation = √(Sample variance)

Sample standard deviation = √(2.337768)

Sample standard deviation ≈ 1.529

These measures provide information about the dispersion or spread of the data points around the sample mean. A higher variance or standard deviation indicates greater variability in the measurements.

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By using the quadratic formula, the roots of the quadratic equation are x = -7 and x = -3.

In Mathematics and Geometry, a quadratic equation can be defined as a mathematical expression that can be used to define and represent the relationship that exists between two or more variable on a graph with a maximum exponent of two (2).

In Mathematics, the standard form of a quadratic equation is represented by the following equation;

ax² + bx + c = 0

Mathematically, the quadratic formula is represented by this mathematical equation:

\(x = \frac{-b\; \pm \;\sqrt{b^2 - 4ac}}{2a}\)

For the given quadratic equation x² + 10x + 21 = 0, we have:

\(x = \frac{-(10)\; \pm \;\sqrt{(10)^2 - 4(1)(21)}}{2(1)}\\\\x = \frac{-(10)\; \pm \;\sqrt{100 - 84}}{2}\\\\x = \frac{-(10)\; \pm \;\sqrt{(10)^2 - 4(1)(21)}}{2(1)}\\\\x = \frac{-(10)\; \pm \;\sqrt{16}}{2}\\\\x = \frac{-(10)\; \pm \;4}{2}\)

x = (-10 - 4)/2 = -14/2 = -7

x = (-10 + 4)/2 = -6/2 = -3

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An augmented matrix is invertible if the linear system has a unique solution.

The augmented matrix is known as a rectangular matrix.

The properties of an augmented matrix includes:

Note that the inverse of a matrix must be unique

And If A is invertible, then its inverse is unique.

If the linear system is unique, then the augmented matrix is invertible.

Thus, an augmented matrix is invertible if the linear system has a unique solution.

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The first step is to find out how much more food the Seniors collected than the Sophomores. We know that they collected two and a half times more, which is the same as 2.5 times 125 = 312.5 pounds of food.

Therefore, the Seniors collected 312.5 pounds of food.

Given the equation:

8x + 7y = -50

We will check the options to find which order pair is the solution of the equation

Point (-6 , -1)

8 * -6 + 7 * -1 = -48 - 7 = -55 ≠ -50

Point ( 0 , -6)

8 * 0 + 7 * - 6 = -42 ≠ -50

Point (-6, 0 )

8 * - 6 + 7 * 0 = -48 ≠ -50

Point (-1 , -6)

8 * -1 + 7 * -6 = -8 - 42 = -50

so, the order pair which is a solution for the equation is (-1 , -6 )

Answer:

Selling Price= $90.75

(i) Original Price= $90.75/0.75= $ 121.00

(ii) 1 Book= $90.75

10 Books= $90.75*10= $907.50

Total Amount Paid= $907.50*1.16 =$1052.70

Answer:

a=6 b=4 3=2.55555555567

Answer:

the 11th term is 0.0000488 or 4.88*10^-5.

Step-by-step explanation:

a3 = 20, a7 = 1.25

a7 = a3r^7-3

1.25 = 20r^4

r^4 = 0.0625

r = 4th root of 0.0625

r = 0.5

a3 = a1r^3-1

20 = a1(20)^2

400a1 = 20

a1 = 0.05

a11 = 0.05(0.5)^11-1 = 0.0000488 or 4.88*10^-5

The total amount that would be found in the account after 4 years, would be $ 641. 69

The total amount after 4 years in Arik's account can be found by the formula :

= A = Amount invested x ( 1 + r /n )ⁿ

The variables are:

Amount invested = $ 500

r = 6.25% = 0. 0625

n = 12

t = 4 years

The total amount is then :

A = 500 x ( 1 + 0. 0625 / 12 ) ^ ⁽¹² ˣ ⁴ ⁾

A = $ 641. 69

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The volume of the helium-filled balloon at 0.855 atm and 10.0 °C will be approximately 42.81 L, calculated using the ideal gas law equation.

To compute this problem, we can use the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

First, we need to convert the initial temperature of 25 °C to Kelvin:

T1 = 25 + 273.15 = 298.15 K

Next, we can rearrange the ideal gas law equation to solve for V2:

V2 = (P1 * V1 * T2) / (P2 * T1)

We have:

P1 = 1.08 atm (initial pressure)

V1 = 50.0 L (initial volume)

P2 = 0.855 atm (final pressure)

T2 = 10.0 °C (final temperature)

Converting the final temperature to Kelvin:

T2 = 10 + 273.15 = 283.15 K

Substituting the values into the equation:

V2 = (1.08 * 50.0 * 283.15) / (0.855 * 298.15)

V2 ≈ 42.81 L

Therefore, the volume of the helium-filled balloon at 0.855 atm and 10.0 °C will be approximately 42.81 L.

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