NO LINKS!! URGENT HELP PLEASE!!!

Express the statement as an inequality Part 4a^2

NO LINKS!! URGENT HELP PLEASE!!!Express The Statement As An Inequality Part 4a^2

Answers

Answer 1

The correct answer is B) |x| > 6 for the given statement

What is meant by the statement?

A statement is a declarative sentence that can be either true or false. It is a proposition that can be proven using logical reasoning or evidence. Statements are the building blocks of mathematical proofs and are used to establish the truth of mathematical theories and concepts.

According to the given information

The statement “the absolute value of x is greater than 6” can be expressed as an inequality in the following way:

|x| > 6

This means that the distance between x and 0 on the number line is greater than 6 units. In other words, x can be any number that is either less than -6 or greater than 6.

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Related Questions

Find sin L, cos L, tan L., sin M, cos M, and tan M when = 12, m= 12√3, and n = 24. Match each ratio to the corresponding trigonometric
expression.

Answers

The values of the a gles using trigonometric ratios are;

tan L = (1/√3)

sin L = 0.5

cos L = ½√3

sin M = 2/√3

cos M = 0.5

How to Use trigonometric ratios?

The three most basic trigonometric ratios are;

sin x = opposite/hypotenuse

cos x = adjacent/hypotenuse

tan x = opposite/adjacent

We are given;

l = 12

m = 12√3

n = 24

Using trigonometric ratios, we have;

12/(12√3) = tan L

tan L = (1/√3)

L = tan¯¹(1/√3)

L = 30°

Similarly;

12/24 = sin L

sin L = 0.5

cos L = (12√3)/24

cos L = ½√3

Similarly;

sin M = 24/12√3

sin M = 2/√3

cos M = 12/24

cos M = 0.5

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Help guys come on I believe in you tell me answer

Answers

Answer:

a) 3/4

b) 21/4  

Step-by-step explanation:

To find the scale factor from A to B take any side of B and divide it by the corresponding side of A

The ratio will be the same for all sides

We have
scale factor = 3/4

We see that the sides 9 and 12 are also in this ratio: 9/12 = 3/4

a) So scale factor from A to B is 3/4

b) w of shape B corresponds to the side with length 7 in shape A

The ratio of w to 7 must be equal to the scale factor

So w/7 = 3/4

w = 7 x 3/4

w = 21/4

Can someone please help me I don’t understand

Answers

The one to one functions in the options includes

Graph 1Graph 4Graph 6

What is one to one functions?

A one-to-one function, also known as an injective function, is a type of function in mathematics where every element in the domain maps to a unique element in the range.

So we can say that, each input value corresponds to exactly one output value, and no two distinct input values have the same output value.

Graphically, one-to-one functions pass the horizontal line test, meaning that no horizontal line intersects the graph of the function more than once.

Applying the horizontal line test shows that the one-to-one function are: Graph 1, 4 and 6

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Write the equation of the line that passes through (7,- 4) and (-1, -2) in slope-intercept form.
O y = x-1
O y = -x-1
O y=-x-2
O y=-4x-6

Answers

To find the equation of the line passing through the points (7, -4) and (-1, -2), we need to first find the slope of the line. The slope of a line passing through two points (x1, y1) and (x2, y2) is given by:

m = (y2 - y1) / (x2 - x1)

Substituting the given values, we get:

m = (-2 - (-4)) / (-1 - 7) = 2/8 = 1/4

Now that we have the slope, we need to find the y-intercept of the line, which is denoted by 'b'. We can use the slope-intercept form of a line, which is:

y = mx + b

where m is the slope and b is the y-intercept.

To find b, we can use one of the given points. Let's use (7, -4):

-4 = (1/4)(7) + b
-4 = 7/4 + b
b = -4 - 7/4
b = -23/4

Now we have the slope and y-intercept, so we can write the equation of the line in slope-intercept form:

y = mx + b
y = (1/4)x - 23/4

Therefore, the correct answer is: y = (1/4)x - 23/4.

Marcia and Tamara are running a race. Marcia has run 4 kilometers. Tamara has completed 3/4 of the race and is 2.5 kilometers ahead of Marcia. Write an equation that represents the relationship between the distances each girl has run. Let k represent the total length of the race in kilometers.

Answers

The equation that represents the relationship between the distances each girl has run is: Marcia = -3/4 * k + 6.5

How to write an equation that represents the relationship between the distances each girl has run

Let x be the distance run by Tamara in kilometers.

Since Tamara has completed 3/4 of the race, then x = 3/4 * k.

Since Tamara is 2.5 kilometers ahead of Marcia, then x - 2.5 = 4 - Marcia.

Substituting the first equation into the second equation, we get:

3/4 * k - 2.5 = 4 - Marcia

Multiplying both sides by -1, we get:

Marcia - 4 = -3/4 * k + 2.5

Adding 4 to both sides, we get:

Marcia = -3/4 * k + 6.5

Therefore, the equation that represents the relationship between the distances each girl has run is:

Marcia = -3/4 * k + 6.5

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3/4 + x = 2. What is the value of x?

Answers

3/4 + x = 2
Subtract 3/4 to both sides to get x by itself:
x = 2 - 3/4
Calculate:
x = 5/4
***explanation to 2 - 3/4 = 5/4:
To subtract fractions, we must get a common denominator. 2 can also be written as 2/1 or 4/2, or 8/4. So we will do 8/4 - 3/4. When adding/subtracting fractions, only calculate the numerator and keep the denominator. So 8 - 3 = 5. 8/4 - 3/4 = 5/4

So the value of x is 5/4 or 1 1/4 or 1.25.

Hope this helped!

Last week 12 boxes of recycled paper were used this week double that number are used how many boxes in this?

Answers

24  boxes were used this week


How to calculate the number of boxes that were used for the week?

12 boxes of recycled paper were used last week
For this week double of this amount was used

When calculating double the amount that was used, this means we have to multiply the initial amount by 2

In this case, we have to multiply 12 by 2

= 12 × 2

= 24

Hence 24 boxes of recycled paper was used this week

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A project has estimated annual net cash flows of $55,800 it is estimated to cost $262,260 determine the cash pay bag. Round the answer to one decimal place

Answers

The cash payback period for the project is 4.7 years.

What is cash payback period?

The cash payback period is a financial metric that calculates the amount of time it takes for a project to generate enough cash flows to recover the initial investment (cost). It is calculated by dividing the initial investment by the estimated annual net cash flows.

What is decimal?

Decimal refers to a system of numbers based on the number 10, where each digit represents a different power of 10. It is a way of expressing numbers using a decimal point to separate the whole number from the fractional part.

Given:

Estimated annual net cash flows = $55,800

Initial investment (cost) = $262,260

Cash Payback Period = Initial Investment / Estimated Annual Net Cash Flows

Putting the values:

Cash Payback Period = $262,260 / $55,800

Calculating the cash payback period:

Cash Payback Period = 4.7 years (rounded to one decimal place)

Therefore, the cash payback period for the project is 4.7 years.

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Select all functions that have a y-intercept of 0,5. I need help (posts test!!!)

Answers

It’s easy , just put x=0
1) becomes 7-2=5
2) becomes -5+10=5
3) I cannot see clearly because of the mouse but if the number is not zero, it’s not the answer
4) becomes 2+5=7
5) becomes -3-5=-8
So the answers are 1,2

Match the equation or expression to the number of terms, the coefficients and the constants.

Answers

 [tex]1.[/tex] The answers are given below

   Equation: [tex]6xt +4yz -3 +10a = 1[/tex]

   Number of terms: [tex]4[/tex]

  Coefficients: [tex]6,4,10[/tex]

   Constants: [tex]-3,1[/tex]

 [tex]2.[/tex] Expression: [tex]25abc -2b +3ac -6bc +25[/tex]

    Number of terms: [tex]5[/tex]

    Coefficients: [tex]25,-2,3,-6[/tex]

    Constants: [tex]25[/tex]

  [tex]3.[/tex] Equation: [tex]25y -3xy+5x = 100[/tex]

     Number of terms: [tex]3[/tex]

     Coefficients: [tex]25,-3,5[/tex]

      Constants: [tex]100[/tex]

How to break down mid point?

To break down each equation or expression and identify the number of terms, coefficients, and constants.

[tex]1.[/tex] Equation: [tex]6xt +4yz -3 +10a = 1[/tex]

   Number of terms: 4. There are four terms in this equation separated     by addition and subtraction operators.

Coefficients: [tex]6,4,10[/tex]. These are the coefficients, which are the numerical values multiplied by the variables (xt, yz, a) in each term.

 Constants: [tex]-3,1[/tex]. These are the constants, which are the numerical values without any variables that are added or subtracted in the equation.

[tex]2.[/tex]  Expression:[tex]25abc -2b +3ac -6bc +25[/tex]

   Number of terms: [tex]5[/tex] There are five terms in this expression separated by addition and subtraction operators.

  Coefficients: [tex]25,-2,3,-6[/tex]. These are the coefficients, which are the numerical values multiplied by the variables (abc, b, ac, bc) in each term.

  Constants: [tex]25[/tex]. This is the constant, which is the numerical value without any variables that is added in the expression.

[tex]3.[/tex]  Equation: [tex]25y -3xy+5x = 100[/tex]

    Number of terms:[tex]3[/tex]. There are three terms in this equation separated by addition and subtraction operators.

    Coefficients: [tex]25,-3,5[/tex]. These are the coefficients, which are the numerical values multiplied by the variables (y, xy, x) in each term.

   Constants: [tex]100[/tex]. This is the constant, which is the numerical value without any variables on the right-hand side of the equation.

Therefore,   [tex]1.[/tex] The answers are given below

   Equation: [tex]6xt +4yz -3 +10a = 1[/tex]

   Number of terms: [tex]4[/tex]

   Coefficients: [tex]6,4,10[/tex]

   Constants: [tex]-3,1[/tex]

 [tex]2.[/tex] Expression: [tex]25abc -2b +3ac -6bc +25[/tex]

    Number of terms: [tex]5[/tex]

    Coefficients: [tex]25,-2,3,-6[/tex]

    Constants: [tex]25[/tex]

  [tex]3.[/tex] Equation: [tex]25y -3xy+5x = 100[/tex]

     Number of terms: [tex]3[/tex]

     Coefficients: [tex]25,-3,5[/tex]

      Constants: [tex]100[/tex]

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PLEASE HELP PLEASE ASAP I NEED THIS NOW

Answers

The slope-intercept form of the equation is y = 18x.

What is the function in slope-intercept form

To find the function in slope-intercept form, we have to write the general form below as;

y = mx + c

m = slope

c = y-intercept

To find the slope, we need to take two points from the table given;

slope (m) = y2 - y1 / x2 - x1

m = 720 - 450 / 40- 25

m = 18

The slope of the line is 18

we can use this with any point to find the y - intercept

y = mx + c

720 = 18(40) + c

720 = 720 + c

c = 720 - 720

c = 0

The equation of the line in slope-intercept form is y = 18x

b. To determine how far he travelled with 55 gallons of gas

y = 18x

y = 18(55)

y = 990 miles

c. How many gallons will be required to cover 630 miles

y = 18x

630 = 18x

x = 630 / 18

x = 35 gallons

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Write the first four terms of each arithmetic sequence. first term 7 and common difference 15

Answers

Hence, 7, 22, 37, and 52 are the first four terms in the arithmetic series with initial term 7 and common difference 15.

what is arithmetic progression ?

Algebraic progression is a series of numbers where each term following the first is derived by multiplying the previous president by a constant known as the common difference (d). An arithmetic progression often takes the form: A, A+D, A+2D, A+3D,... where "a" stands for the initial keyword and "d" for the common distinction.

given

The sequence's initial term is 7, and the shared discrepancy is 15. We can continuously add 15 to the preceding word to find the next terms.

As a result, the arithmetic sequence's first four terms are:

Initial term = 7

Term two: 7 plus 15 equals 22

Third term = 22 plus 15 equals 37

Fourth term: 37 plus 15 equals 52

Hence, 7, 22, 37, and 52 are the first four terms in the arithmetic series with initial term 7 and common difference 15.

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Substitute the supplied value and simplify both sides of the equation, if necessary. Then decide if the supplied value is or is not a solution.

m + 2(m + 1) = 14 {4}

Answers

The supplied value 4 is a solution to the equation m + 2(m + 1) = 14.

Is the supplied value {4} a solution to the given equation?

To solve the equation m + 2(m + 1) = 14 for the supplied value of m = 4, we substitute the value of m into the equation and simplify both sides of the equation.

First, we replace every occurrence of m in the equation with 4:

m + 2(m + 1) = 14

Substitute m with 4

4 + 2(4 + 1) = 14

The parentheses around (4 + 1) indicate that we need to add 4 and 1 together first, before multiplying by 2. This gives us:

4 + 2(5) = 14

We simplify further by performing the multiplication:

4 + 10 = 14

14 = 14

Therefore, when we substitute m = 4 into the equation, we get a true statement. Therefore, 4 is a solution to the equation.

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The circle is divided into equal parts.
What fraction of the area of the circle is shaded?
+0
e
1
4
w|1
1
-
2
13% Complete
AZ

Answers

according to the given information we can say that the fraction of the area of the circle that is shaded is 1/4 or 0.25.

What is circle?

Every point in a horizontal surface that is a certain distance above another point forms a circle (centre). It is a circle made out of point that are separated from each other in a horizontal direction as a result. At all angles, it is rotating symmetric about the centre. In the closed, two-dimensional plane of a circle, each pair of points is evenly separated from the "centre." A line that pierces the circle creates a specular symmetrical line. At all angles, it rotates symmetrically about the centre.

given,

If the circle is divided into two equal parts and one of them is shaded, then the shaded area is half of the total area of the circle. So the fraction of the area of the circle that is shaded is 1/2 or 0.5.

If the circle is divided into four equal parts and one of them is shaded, then the shaded area is one-fourth of the total area of the circle. So the fraction of the area of the circle that is shaded is 1/4 or 0.25.

Therefore, the answer depends on how many equal parts the circle is divided into and the number of shaded parts.

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The solid below is dilated by a scale factor of . Find the surface area of the solid
created upon dilation.

Answers

The surface area of the solid created upon dilation is equal to 36 units².

How to calculate surface area of a cylinder?

In Mathematics and Geometry, the surface area (SA) of a cylinder can be calculated by using this mathematical equation (formula):

SA = 2πrh + 2πr²

Where:

h represents the height.r represents the radius.

By substituting the given parameters into the formula for the surface area (SA) of a cylinder, we have the following;

Surface area = 2πrh + 2πr²

Surface area = 2(π)(9)(9) + 2(π)(9²)

Surface area = 324π units²

After applying a dilation with a scale factor of 1/3, the surface area of the cylinder is given by;

Surface area = 324π × (1/3)²

Surface area = 324π × 1/9

Surface area = 36 units²

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3 divided by 5/3 i need help and i need longer

Answers

Answer: 1.8

Let's put our whole number and fraction side by side so we can visualize the problem we're trying to solve:

3 ÷

5

3

The trick to working out 3 divided by 5/3 is similar to the method we use to work out dividing a fraction by a whole number.

All we need to do here is multiply the whole number by the numerator and make that number the new numerator. The old numerator then becomes the new denominator. Let's write this down visually:

3 x 3

5

=

9

5

So, the answer to the question "what is 3 divided by 5/3?" is:

9

5

Sometimes, after calculating the answer we can simplify the resulting fraction down to lower terms. In this example though 9/5 is already in it's lowest possible form.

If you made it this far you must really love your fractions and dividing whole numbers by them. Hopefully this simple guide was easy for you to follow along and you can now go forth and divide more whole numbers by as many fractions as your heart desires.

Convert 3 divided by 5/3 to Decimal

One last little calculation before you go. It's common to want to express your result as a decimal and, to do that, all you need to do is divide your numerator by your denominator:

9

5

= 1.8

3 divided by 5/3 is 9/5

To divide by a fraction, multiply by the reciprocal of that fraction

3 x 3/5

Remember that multiplication is another way of writing repeated addition. So, since we're multiplying 3/5 by 3, it means we'll add 3/5 to itself 3 times

3 x 3/5 = 3/5 + 3/5 + 3/5

We're adding fractions with like denominators, so let's copy the common denominator

= /5

We can see that we have 3 fractions with the numerator 3. That means that we're adding 3 to itself 3 times, which is equal to 3×3

= 3x3/5

Time for a little trick! To solve our problem faster, we can just copy the fraction's denominator and multiply its numerator 3 by 3

3 x 3/5 = 3x3/5

Next, copy the denominator and multiply the numbers in the numerator

3 x 3/5 = 3x3/5 = 9/5

That's it! The product of 3 and 3/5 is 9/5

3 x 3/5 = 9/5

Answer: 9/5

Which of the points below correctly plots the point (2,7π/4)?
Points are plotted on a polar graph.

Answers

Answer: E is correct

Step-by-step explanation:

Remember that the coordinates (2,7π4) tell us the radius r=2 and the angle θ=7π4. So the point should be on the circle labeled 2 and form an angle of 7π4 with the positive x-axis. Point E is the correct point.

What is 0.81818181818 as a fraction in its simplest

Answers

81/100
I think this is what you mean

Manny's grocery store has a rectangular logo for their business that measures 1.9 meters long with an area that is exactly the maximum area allowed by the building owner.


Create an equation that could be used to determine L, the unknown side length of the logo.

Answers

Let's let L be the unknown side length of the logo, in meters. The area of the logo is given by the formula:

Area = length x width

Since we know that the logo is rectangular and that the length is 1.9 meters, we can write:

Area = 1.9L

We also know that the area is exactly the maximum area allowed by the building owner. Let's call this maximum area A. Then we can write:

Area = A

Putting these two equations together, we get:

1.9L = A

This is the equation that could be used to determine L, the unknown side length of the logo, based on the maximum area allowed by the building owner. To solve for L, we can simply divide both sides of the equation by 1.9:

L = A/1.9

Therefore, the length L of the logo is equal to the maximum area allowed by the building owner, divided by 1.9 meters.

party opposed to expanding slavery (2 words, section 1)

Answers

Answer:

The party opposed to expanding slavery in the United States was the Republican Party. It was actually formed to go against slavery.  

5000 people attend a match 50 people win a T-shirt whats the probability of winning a T-shirt

Answers

0.01 , 1/10, 1 percentage

Select all that make a straight line.

Answers

The equations that will make a linear function are

1/8 + y = 9x = 16 + 3y8x - 5y = 30y = -6(x + 10)

What is linear function?

A linear equation, also referred to as a linear function in mathematics, is used to identify relationships between variables that can be plotted on a straight line.

This class of polynomial functions have a degree of 1, indicating that the highest power of the variable within the formula cannot exceed 1.

It takes on the standardized form:

y = mx + b

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The lateral area of a cone is 587 pi symbol cm^2. The radius is 32cm. Finf the slant height to the nearest tenth.

Answers

Answer:

The lateral area of a cone is given by the formula:

L = πrs

Where r is the radius of the base, s is the slant height, and π is pi.

We are given that the lateral area L is 587π cm^2 and the radius r is 32 cm. Substituting these values into the formula, we get:

587π = π(32)s

Simplifying, we can cancel the π on both sides of the equation:

587 = 32s

Dividing both sides by 32, we get:

s = 18.34375

Rounding to the nearest tenth, we get:

s ≈ 18.3 cm

Therefore, the slant height is approximately 18.3 cm.

Step-by-step explanation:

Help me solve and show my work please

Answers

The above prompts are related to the concepts of Degrees, Radians, Sines and Cosines. See the solutions below.

What are the solutions to the above prompts?


1)

(a) Cos 150 degrees

To convert 150 degrees to radians, we multiply by π/180:

150 degrees = (150π/180) radians = (5π/6) radians

We can use the unit circle and reference angle of π/6 to find the cosine of 5π/6:

cos(5π/6) = -cos(π/6) = -(√3/2) = -√3/2

Therefore, cos 150 degrees = -√3/2.

(b) Sin 240 degrees

To convert 240 degrees to radians, we multiply by π/180:

240 degrees = (240π/180) radians = (4π/3) radians

We can use the unit circle and reference angle of π/3 to find the sine of 4π/3:

sin(4π/3) = -sin(π/3) = -(√3/2) = -√3/2

Therefore, sin 240 degrees = -√3/2.

2)

To use the law of cosines, we need either a side and the two angles opposite that side, or two sides and the angle between them. In this case, we have two angles and the side opposite one of them, so we can use the law of sines to find the other side and then use the law of cosines to find the remaining side or angle.

Using the law of sines, we have:

sin A / AB = sin B / AC

where AC is the side opposite angle B. Substituting the given values, we get:

sin 52 / 26.7 = sin 70 / AC

Solving for AC, we get:

AC = sin 70 / sin 52 * 26.7 = 30.4

Now we can use the law of cosines to find the remaining side, x:

x^2 = AB^2 + AC^2 - 2ABACcos A

Substituting the given values, we get:

x^2 = 26.7^2 + 30.4^2 - 226.730.4*cos 52

Solving for x, we get:

x ≈ 22.1

Therefore, the missing side is approximately 22.1.


To find the area of the triangle, we can use the formula:

Area = (1/2) * a * b * sin C

where a and b are the lengths of the two sides, and C is the included angle. Substituting the given values, we get:

Area = (1/2) * 7 * 9 * sin 30

Using the fact that sin 30 = 1/2, we can simplify this to:

Area = (1/2) * 7 * 9 * (1/2) = 15.75

Therefore, the area of the triangle is 15.75 square units.

From the law of sines, we have:

sin A / a = sin B / b

Substituting the given values, we get:

sin 45° / (7√2) = sin B / 7

Solving for sin B, we get:

sin B = (7/7√2) * sin 45° = √2/2

Therefore, B = 45° or 135°. We can use the fact that the angles of a triangle sum to 180° to find C:

C = 180° - A - B = 90° or 0°

If C = 0°, then the triangle is degenerate and the sides a and b lie on top of each other. Therefore, we must have C = 90°.

Now we can use the Pythagorean theorem to find the remaining side:

c^2 = a^2 + b^2 - 2ab*cos C

Substituting the given values, we get:

c^2 = (7√2)^2 + 7^2 - 2(7√2)(7)*cos 90°

Solving for c, we get:

c = √(98 + 49) = √147 = 7√3

Therefore, the sides of the triangle are:

a = 7√2

b = 7

c = 7√3



Using the law of cosines to find x:

In triangle ABC with side lengths AB = 18, AC = 15, and angle A = 108 degrees, we want to find the length of side BC (denoted by x). Using the law of cosines:

x^2 = 18^2 + 15^2 - 2(18)(15)cos(108 degrees)

We can evaluate the cosine of 108 degrees using the identity cos(180 - 108) = -cos(108):

cos(108 degrees) = -cos(180 - 108 degrees) = -cos(72 degrees)

Substituting this into the equation above, we get:

x^2 = 18^2 + 15^2 - 2(18)(15)(-cos(72 degrees))

Simplifying:

x^2 = 729

Taking the square root of both sides:

x = ±27

Since x represents a length, we take the positive root:

x = 27

Therefore, the length of BC is 27 units.

Using the law of cosines to find theta:

In triangle ABC with side lengths AB = 20, BC = 12, and AC = 10, we want to find the measure of angle B (denoted by theta). Using the law of cosines:

cos(B) = (12^2 + 10^2 - 20^2) / (2(12)(10)) = -1/2

Since -1/2 is the cosine of an angle in the second quadrant, we have:

B = 180 degrees - arccos(-1/2)

Using a calculator, we find:

B ≈ 150.5 degrees

Therefore, the measure of angle B is approximately 150.5 degrees (or theta = 150.5 degrees).

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square root of 54 (simplified not 7.5)

Answers

Answer:

Step-by-step explanation:

7.3 is the anwser

Pls help me ASAP PLEASE ​

Answers

Answer: bellshaped

Step-by-step explanation:

A light source at a height of 8 metres is shining a laser beam onto the mirror on the ground. The light beam needs to be observed by a sensor at a height of 4 metres. If the total distance the laser beam travels is 15 metres, what is the distance between the bases of the light source and the sensor? Your answer should be a numerical value.

Answers

Using the Pythagorean theorem, we can find the distance between the bases of the light source and the sensor. Let's call this distance "x".

We know that the light source is at a height of 8 metres and the sensor is at a height of 4 metres, so the vertical distance between them is 8 - 4 = 4 metres.

We also know that the total distance the laser beam travels is 15 metres. Let's call the horizontal distance between the mirror and the sensor "y". Then, the horizontal distance between the light source and the mirror is also "y".

Using the Pythagorean theorem, we can create an equation:

x^2 = y^2 + 4^2 (equation 1)
x^2 = y^2 + (15-y)^2 (equation 2)

We can simplify equation 2 by expanding (15-y)^2:

x^2 = y^2 + (225 - 30y + y^2)

Combining like terms:

x^2 = 2y^2 - 30y + 225

Now we can substitute equation 1 into this equation:

y^2 + 4^2 = 2y^2 - 30y + 225

Simplifying:

y^2 + 16 = 2y^2 - 30y + 225

Rearranging and simplifying:

y^2 - 30y + 209 = 0

Using the quadratic formula:

y = (30 ± sqrt(30^2 - 4*1*209)) / (2*1)
y = (30 ± sqrt(16)) / 2
y = 15 ± 2

Since we're looking for a positive value for "y", we can take the solution y = 15 - 2 = 13.

Now we can substitute this value of "y" into equation 1:

x^2 = 13^2 + 4^2
x^2 = 185
x = sqrt(185)

Therefore, the distance between the bases of the light source and the sensor is approximately 13.6 metres.

Calcular el área de un triángulo equilátero si su base es de 8 m y una altura de 5 m

Answers

Answer:

[tex]tringle = \frac{1}{2} \times base \times hieght[/tex]

1/2 × 8×5

0.5×40

=20m

Find cos(2π/3) I need help

Answers

Answer:

We can use the cosine double angle formula to find cos(2π/3):

cos(2θ) = cos^2(θ) - sin^2(θ)

Letting θ = π/3, we get:

cos(2π/3) = cos^2(π/3) - sin^2(π/3)

Using the values of cosine and sine of π/3 (which are known), we have:

cos(2π/3) = (1/2)^2 - (√3/2)^2

Simplifying, we get:

cos(2π/3) = 1/4 - 3/4

cos(2π/3) = -1/2

Therefore, cos(2π/3) is equal to -1/2.

Answer:

cos(2π/3) = cos(π/3 + π/3)

= cos²(π/3) - sin²(π/3)

= (1/2)² - (√3/2)²

= 1/4 - 3/4

= -2/4

= -1/2

Step-by-step explanation:

here are the steps:

Convert 2π/3 to degrees: 2π/3 * (180/π) = 120°Use the double angle formula for cosine: cos(2θ) = cos²(θ) - sin²(θ)Substitute π/3 for θ: cos(2π/3) = cos²(π/3) - sin²(π/3)Use the values of cosine and sine of π/3 from the unit circle: cos(π/3) = 1/2 and sin(π/3) = √3/2Substitute these values into the formula: cos(2π/3) = (1/2)² - (√3/2)²Simplify the expression inside the parentheses: cos(2π/3) = 1/4 - 3/4Combine like terms: cos(2π/3) = -2/4Simplify the fraction: cos(2π/3) = -1/2

Therefore, cos(2π/3) = -1/2

A sphere has a radius of 4 in choose true or false for each statement

Answers

The true statements are (a) A sphere with half the radius has 1/8 of the volume and (c) A sphere with 3 times the radius has 27 times the volume

Finding the true statements from the radius and volume

Given that the radius of the sphere is represented as

Radius, r = 4 inches

The formula of the volume of the sphere is represented as

V = 4/3πr³

For the transformed volume, we have

V₂ = 4/3πR³

Where

R = kr and k is the scale factor

So, we have

V₂ = 4/3π(kr)³

V₂ = 4/3πr³k³

This gives

V₂ = Vk³

Testing the statements, we have

(a) A sphere with half the radius has 1/8 of the volume

V₂ = V(1/2)³

Evaluate

V₂ = 1/8V

So, the statement is true

(b) A sphere with twice the radius has 6 times the volume

V₂ = V(2)³

Evaluate

V₂ = 8V

So, the statement is false

(c) A sphere with 3 times the radius has 27 times the volume

V₂ = V(3)³

Evaluate

V₂ = 27V

So, the statement is true

Read more about volume at

brainly.com/question/463363

#SPJ1

Complete question

A sphere has a radius of 4 inches.

Choose True or False for each statement.

(a) A sphere with half the radius has 1/8 of the volume

(b) A sphere with twice the radius has 6 times the volume

(c) A sphere with 3 times the radius has 27 times the volume

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