+10
solution
we must first locate our two endpoints:
point a: (-4,

point b: ( 4
,)
we will now add together our x values and divide by two. we have:
( 5
+4)/2 = 0/2 = 1

Copper oxide, often known as CuO, is the most typical natural ore of copper.

An estimated 5.6 million metric tons of copper were produced in 2021 in Chile, the world's largest copper producer.

What is copper?

A ductile, malleable, and highly efficient conductor of heat and electricity, copper is a reddish-gold colored metal. Since it was the first metal that humans worked with, copper is one of the metals that is used the most frequently today.

The two primary copper ores are copper oxide ore and copper sulfide ore. Both forms of ore may be profitably mined, although chalcopyrite, a sulfide ore mineral, is the most prevalent source of copper ore and represents nearly half of the metal's output.

The most significant and significant source of copper metal is chalcopyrite. The hue is often brassy to golden-yellow, frequently tarnished, and has a submetallic shine along with greenish-black streaks.

To learn more about copper

brainly.com/question/19761029

#SPJ4

\(\tt{} {2x}^{2} - 26x + 84\)

\(\tt{}2 {(x}^{2} - 13x + 42)\)

\(\tt{}2 {(x}^{2} - 6x - 7x + 42)\)

\(\tt{}2( x \times (x - 6) - 7(x - 6))\)

\(\tt{}2(x - 6) \times (x - 7)\)

If we have data on the failure rate of the system or equipment, we can use this formula to calculate the probability of the time to the next failure being 1 day or less.

The probability of the time to the next failure being 1 day or less would depend on various factors such as the type of system or equipment being used, its age, maintenance history, and environmental conditions.

To calculate this probability, we would need to gather data on the time to failure for similar systems or equipment and use statistical methods such as a probability distribution function to model the data.

For example, if we assume that the time to failure follows an exponential distribution, we can use the cumulative distribution function to calculate the probability of the time to the next failure being 1 day or less.

The formula for the cumulative distribution function for the exponential distribution is:

P(X ≤ x) = 1 - e^(-λx)

Where X is the time to failure, λ is the failure rate, and e is the base of the natural logarithm.

If we have data on the failure rate of the system or equipment, we can use this formula to calculate the probability of the time to the next failure being 1 day or less.

Learn more about probability

brainly.com/question/30034780

#SPJ11

Answer:

A cone with a diameter of 18ft and a slant height of 30ft

Using Pythagorean theorem, the height is calculated by:

H = sqrt(18^2 - (30/2)^2) = 9.95

The surface area:

A = lateral surface area + base

A = pi x radius x slant height + pi x radius^2

A = pi x (30/2) x 18 + pi x (30/2)^2 = ~1555.1 (ft2)

The volume:

V = base x height x (1/3)

V = pi x radius^2 x height

V = pi x (30/2)^2 x 9.95 = 7033.2 (ft3)

Hope this helps!

:)

Answer:

B

Step-by-step explanation:

1/2x - 2 > 0

collect like terms

1/2x > 0 + 2

1/2x > 2

Divide both sides by 1/2

x > 2 divided by 1/2

inverse of 1/2 is 2/1

x > 2 times 2/1

x > 4

Answer:

should be a. took the test and It was horrible. I remember trying and forgot how to do everything beother

Step-by-step explanation:

no balls

Answer:

about +–1%; between 46.5% and 47.5%

Step-by-step explanation:

Answer:

26 cm

Step-by-step explanation:

The area of a trapezium is

A = 1/2 (b1+b2)*h  where b1 and b2 are the lengths of the bases

910 = 1/2 ( 21+49) h

910 = 1/2 (70)h

910 = 35h

Divide by 35

910/35 = 35h/35

26 = h

1) Let' s x:

Remove the Parentheses:

Combine like terms:

2) Hence, the sum of this expression is:

Answer: Find answer and explanation in the attached document.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Tables of value: The ratio of Y to X gives the unit rate slope.

Equation: Make a table of VALUES. The ratio of  Y to X gives the unit rate and slope.

Graph: The SLOPE of the graph is also the unit rate.

Answer:

e

Step-by-step explanation:

1,-4

3,-1

-1-(-4) = 3

3-1 is 2

slope is 3/2

Angle BCF = 38 degrees

Angle BED = 79 degrees

Angle BDE = 63 degrees

Angle B = 79 degrees

Angle C = 79 degrees

Angle ACF = 38 degrees

Angle F = 104 degrees.

We have,

As ED//BC,

We can say that angle EDB = angle BCF = 38 degrees.

Also, in rhombus ABCF, angles BCF and CAF are equal,

So CAF = 38 degrees.

In triangle BED,

We have angle BED = 79 degrees and angle EDB = 38 degrees.

Angle BDE = 180 - (79 + 38) = 63 degrees.

In triangle BDE,

We also has angle B = angle EBD = 180 - (63 + 38) = 79 degrees.

In trapezium BCDE,

Angles B and C are equal, so angle C = 79 degrees.

Finally, in rhombus ABCF, angles CAF and ACF are equal,

So ACF = 38 degrees.

Therefore,

Angles A and C of triangle ACF equal 38 degrees each, and angle F is:

= 180 - (38 + 38)

= 104 degrees.

Thus,

angle BCF = 38 degrees

angle BED = 79 degrees

angle BDE = 63 degrees

angle B = 79 degrees

angle C = 79 degrees

angle ACF = 38 degrees

angle F = 104 degrees.

Learn more about Rhombus here:

https://brainly.com/question/27870968

#SPJ4

The complete question.

In the figure, ABCF is a rhombus and BCDE is a trapezium. ED//BC, BCF=38 degrees, and BED= 79 degrees.

Find the following:

Angle BCF

Angle BED

Angle BDE

Angle B

Angle C

Angle ACF

Angle F

The standard deviation of the given data set, {12, 12, 12, 12, 12, 12, 12}, is zero. This is because the deviation of every value from the mean is zero. Therefore, the standard deviation of the given data set is zero.

In statistics, the standard deviation (SD) is a measure of how much the data is spread out from the mean, or how much the data deviates from the average value. It is calculated by finding the square root of the variance.Variance (σ2) is a measurement of the degree to which a set of data deviates from the mean. In other words, variance is a measure of how much the data is spread out. It is defined as the average of the squared differences from the mean.The formula for calculating the variance is

:σ2 = Σ(x - μ)2/N

where Σ represents the sum, x is the value of the observation,

μ is the mean of the observations, and

N is the total number of observations.

The standard deviation formula is the square root of the variance.

Therefore,σ = √σ2 = √Σ(x - μ)2/N

The given data set is {12, 12, 12, 12, 12, 12, 12}.

The mean of this data set is:(12+12+12+12+12+12+12) / 7 = 12

The deviation of every value from the mean is zero. Therefore, the variance of the given data set is zero. The standard deviation formula is the square root of the variance. Therefore, the standard deviation of the given data set is zero.

The standard deviation of the given data set, {12, 12, 12, 12, 12, 12, 12}, is zero.

To know more about standard deviation visit:

brainly.com/question/29115611

#SPJ11

Answer:

80 tsp.

Step-by-step explanation:

400 divided by 5 is 80, so 80 tsp's.

Answer:

80 tsp.

Step-by-step explanation:

400 mL = 80 tsp

Answer:

5.76

Step-by-step explanation:

What is 12 percent (calculated percentage %) of number 48? Answer: 5.76.

The ratios that could be the lengths of the two legs in a 30-60-90 triangle are √3:3 (option E) and 12√3 (option D).

In a 30-60-90 triangle, the angles are in the ratio of 1:2:3. The sides of this triangle are in a specific ratio that is consistent for all triangles with these angles. Let's analyze the given options to determine which ones could be the ratio between the lengths of the two legs.

A. √2:√2

The ratio √2:√2 simplifies to 1:1, which is not the correct ratio for a 30-60-90 triangle. Therefore, option A is not applicable.

B. 15

This is a specific value and not a ratio. Therefore, option B is not applicable.

C. √√√√5

The expression √√√√5 is not a well-defined mathematical operation. Therefore, option C is not applicable.

D. 12√3

This is the correct ratio for a 30-60-90 triangle. The ratio of the longer leg to the shorter leg is √3:1, which simplifies to √3:3. Therefore, option D is applicable.

E. √3:3

This is the correct ratio for a 30-60-90 triangle. The ratio of the longer leg to the shorter leg is √3:1, which is equivalent to √3:3. Therefore, option E is applicable.

F. √2:√5

This ratio does not match the ratio of the sides in a 30-60-90 triangle. Therefore, option F is not applicable. So, the correct option is D. 1 √2.

For more such questions on lengths

https://brainly.com/question/28322552

#SPJ8

Answer:

That’s pretty neat!

Step-by-step explanation:

The wavelength with only frequency can be calculated by using the equation, λ = c / f

Frequency refers to how many times a wave oscillates or cycles per second

The wavelength is defined as the distance between two identical points on the wave

The relationship between frequency (f) and wavelength (λ) is given by the following equation:

λ = c / f

where c is the speed of light in a vacuum, which is approximately 3.00 x 10^8 meters per second.

Therefore, to find the wavelength of a wave given its frequency, simply divide the speed of light by the frequency.

Learn more about wavelength here

brainly.com/question/3148541

#SPJ4

The rule for the graph of g is g(x) = -4(x^2-3). This graph is a vertical stretch by a factor of 4 and a reflection in the x-axis of the graph of f(x) = x^2-3.

Step-by-step explanation:

Rational number because it's terminating

la respuesta de tu potencia es 1

The graph represents this system of inequalities:

F. y ≤ −x + 4

G. y ≤ 3x − 1

In Mathematics, the point-slope form of a straight line can be calculated by using this mathematical expression:

y - y₁ = m(x - x₁) or y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)

Where:

Next, we would determine the linear equation representing the line of f(x) which passes through the points (0, 4) and (4, 0) by using the point-slope form as follows:

y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)

y - 0 = (4 - 0)/(0 - 4)(x - 4)

y - 0 = -1(x - 4)

y = -x + 4

Therefore, an inequality representing the line of f(x) is y ≤ -x + 4

For the line of g(x), we have:

y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)

y - (-1) = (5 - (-1))/(2 - 0)(x - 0)

y + 1 = 3(x - 0)

y = 3x - 1

Therefore, an inequality which represents the line of g(x) is y ≤ 3x - 1.

Read more on inequality here: https://brainly.com/question/17024671

#SPJ1

Complete Question:

In the graph, the area below f(x) is shaded and labeled A, the area below g(x) is shaded and labeled B, and the area where f(x) and g(x) have shading in common is labeled AB. Graph of two intersecting lines. The line f of x is solid and goes through the points 0, 4, and 4, 0 and is shaded below the line. The other line g of x is solid, and goes through the points 0, negative 1 and 2, 5 and is shaded below the line. The graph represents which system of inequalities?

y ≤ −3x − 1

y ≤ −x − 4

y > −3x + 1

y ≤ −x − 4

y < 3x − 1

y ≤ −x + 4

y ≤ 3x − 1

y ≥ −x + 4

As per the concept of subtraction, the integer number that representing the change in population is y - x = 1,379,048

Subtraction:

Subtraction means the difference or change between two or more things.  Basically, it is the process of taking away a number from another. It is a primary arithmetic operation that is denoted by a subtraction symbol (-).

Given,

Between July​ 1, 2011, and July​ 1, 2012, the population of a specific country increased by approximately 1,379,048.

Here we need to find the change in the population.

In order to find the change in the population, we have to subtract one from another,

Such that,

Change = Population in July 1, 2011 - Population in July 1, 2012

Here the changed value is only presented in the question, so let us consider that

Population in July 1, 2011 as x and

Population in July 1, 2012 as y,

Then we get, the equation as,

y - x = 1,379,048

Here we first placed the y because the population is increasing.

To know more about Subtraction here.

https://brainly.com/question/2346316

#SPJ1

Answer:

The area of the shaded part of the rectangle is 28 m².

Step-by-step explanation:

The area of the shaded part of the rectangle can be calculated by subtracting the areas of the two unshaded triangles from the area of the rectangle.

The area of a rectangle is the product of its width and length.

From inspection of the given diagram, the width of the rectangle is 4 m and the length is 14 m. Therefore, the area of the rectangle is:

\(\begin{aligned}\textsf{Area of the rectangle}&=4\cdot 14\\&=56\; \sf m^2\end{aligned}\)

The area of a triangle is half the product of its base and height.

The bases of the two unshaded triangles are congruent (denoted by the double tick marks) and are 7 m.

The height of both triangles is the height of the rectangle, 4 m.

Therefore, the two triangles have the same area.

\(\begin{aligned}\textsf{Area of 2 unshaded triangles}&=2 \cdot \dfrac{1}{2} \cdot 7 \cdot 4\\&=1 \cdot 7 \cdot 4\\&=7 \cdot 4\\&=28\; \sf m^2\end{aligned}\)

To calculate the area of the shaded part of the rectangle, subtract the area of the 2 unshaded triangles from the area of the rectangle:

\(\begin{aligned}\textsf{Area of the shaded part}&=\sf Area_{rectangle}-Area_{triangles}\\&=56-28\\&=28\; \sf m^2\end{aligned}\)

Therefore, the area of the shaded part of the rectangle is 28 m².

The slope of the line that passes through point (0,-1) and (-1,-4) is 3.

Slope is simply expressed as change in y over the change in x.

Slope m = ( y₂ - y₁ )/( x₂ - x₁ )

Given the data in the question;

Point 1( 0,-1 )

Point 2( -1,-4 )

To determine the slope of the line, plug the coordinates into the slope formula above.

Slope m = ( y₂ - y₁ )/( x₂ - x₁ )

Slope m = ( -4 - (-1) )/( -1 - 0 )

Slope m = ( -4 + 1 )/( -1 )

Slope m = ( -3 )/( -1 )

Slope m = 3

Therefore, the slope of the line is 3.

Learn more about slope formula here: brainly.com/question/24578307

#SPJ1

Answer:

area of triangle=base*height/2

=4*5/2

=20/2

=10m^2

Step-by-step explanation:

Answer:

12 miles

Step-by-step explanation:

2.25+3.50x=44.25

3.50x=42

x=12

Options

Answer:

(D)between 30 yards and 150 yards

Step-by-step explanation:

The given hallways are 90 yards and 60 yards respectively.

By the triangle inequality: If a, b and c are the sides of a triangle, the sum of two sides (a and b) is greater than the third side c.

\(60+x>90\\x>90-60\\x>30\\$Also, if the third unknown side is the longest side, we have:$\\90+60>x\\150>x\\x<150\\$Combining $x>30$ and $x<150$, we obtain: $ 30<x<150\)

The possible values of the third side are real numbers between 30 yards and 150 yards.

Answer:

d

Step-by-step explanation:

Answer:

He drinks 5 1/4 liters of tea in one hour.

Step-by-step explanation:

Ben drinks 3 1/2 liters of tea every 40 minutes.

This means that he would drink 1 3/4 of tea every 20 minutes (divide both sides by 2).

Now, let's multiply each side by 3.

1.75 * 3 = 5.25 (aka 5 1/4)

20 * 3 = 60 minutes (an hour)

I HOPE IT WILL HELP YOU.

Hope you have a great day ahead.

Thank YOU .

^ - ^