help Finding the initial amount and rate of change given a table for a linear function

Help Finding The Initial Amount And Rate Of Change Given A Table For A Linear Function

Answers

Answer 1

(a) The table clearly shows distance gets smallers as time passes, so the first choice is correct.

Since we know the rate at which the escalator moves is constant, we know that the average rate of change of the escalator's distance from the first floor is the same across any time interval we choose. Take for instance the average rate of change from [tex]t=6[/tex] to [tex]t=9[/tex]. If [tex]d(t)[/tex] denotes distance at time [tex]t[/tex], then the average rate of change over these 3 seconds, and at every point in time for that matter, is

[tex]\dfrac{d(9) - d(6)}{9 - 6} \dfrac{\rm cm}{\rm s} = \dfrac{890 - 980}{9 - 6} \dfrac{\rm cm}{\rm s} = -30 \dfrac{\rm cm}{\rm s}[/tex]

In other words, the distance from the first floor is decreasing at a rate of 30 cm/s. (negative sign = decreasing)

(b) At the start, when [tex]t=0[/tex], suppose Alan's distance from the first floor was [tex]x[/tex]. For every second that passes, we know the distance from the first floor decreases by 30 cm. This would mean that after [tex]t[/tex] seconds have passed, the distance would have decreased by a total [tex]30t[/tex] cm.

This tells us that Alan's distance from the first floor at any time [tex]t\ge0[/tex] is

[tex]d(t) = x - 30t[/tex]

Using any of the values from the table, we can solve for [tex]x[/tex].

[tex]t=6 \implies d(6) = x - 30\cdot6 \implies 980 = x - 180 \implies x = 1160[/tex]

which places Alan 1160 cm = 11.6 m from the first floor at the start.


Related Questions

find the area for each parallelogram

Answers

Answer:

Hello im sorry but I am unable to answer this.

Step-by-step explanation:

There is no parallelogram shown to answer.

Find the first five terms of each sequence. aₙ=5-a n₋₁ , where a₁ = 1

Answers

The first five terns of the sequence are - 1,4,1,4,1

What is a sequence?

A sequence is an enumerated group of items in mathematics where repetitions are permitted and order is important. It has members, just like a set does. The length of the sequence is determined by the number of items.

an = 5 - a n-1

a1 = 1

a2 = 5 - (1) = 4

a3 = 5 - (4) = 1

a4 = 5 - (1) = 4

a5 = 5 - (4) = 1

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Find an equation of the circle that has center (-2, 1) and passes through (6, -6).

Answers

The [tex](x +2 )^2+(y-1)^2=113[/tex]

The equation of a circle with centre (h,k) and radius r may be written:[tex](x -h )^2+(y-k)^2=r^2[/tex]

We are given (h,k)=(-2,1), so the only unknown is [tex]r^2[/tex].

So,

[tex](x +2 )^2+(y-1)^2=r^2[/tex]

Since the circle passes through (6,−6), the values

x=6, y =−6 will satisfy the equation and we find:

[tex]r^2 = (6-(-2))^2 + (-6-1)^2\\r^2 = (8)^2+(-7)^2\\r^2 = 64 + 49\\r^2 = 113[/tex]

So,

[tex](x +2 )^2+(y-1)^2=113[/tex]

Therefore the equation of the circle that has center (-2, 1) and passes through (6, -6) is [tex](x +2 )^2+(y-1)^2=113[/tex].

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The equation of circle that has center (-2, 1) and passes through (6, -6) is [tex](x+2)^2+(y-1)^2=113[/tex]

The equation of a circle with centre (h,k) and radius r may be written:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

We are given (h,k)=(-2,1), so the only unknown is [tex]r^2[/tex].

So,

[tex](x+2)^2+(y-1)^2=r^2[/tex]

Since the circle passes through (6,−6), the values x=6, y =−6 will satisfy the equation and we find:

[tex]r^2=(6+2)^2+(-6-1)^2\\r^2=(8)^2+(-7)^2\\r^2=64+49\\r^2=113[/tex]

So,

[tex](x+2)^2+(y-1)^2=113[/tex]

Therefore the equation of the circle that has center (-2, 1) and passes through (6, -6) is [tex](x+2)^2+(y-1)^2=113[/tex]

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A football is punted into the air. Its height h, in meters, after t seconds is given by the equation h=-4.9t²+25.5t+1. Round your answer to hundredths place if needed.

1. How high is the ball after 3 seconds?
2. What is the maximum height of the ball and how many seconds will it take to reach that point?
3. How long will the ball be in the air?

Answers

Using the given quadratic function, it is found that:

1. The ball has a height of 33.4 meters after 3 seconds.

2. The maximum height of the ball is of 34.18 meters, taking 2.6 seconds to reach it's height.

3. The ball will be in the air for 5.24 seconds.

What is the quadratic equation for the ball's height?


The quadratic equation for the ball's height after t seconds is given by:

h(t) = -4.9t²+ 25.5t + 1.

Hence, after 3 seconds, the height is:

h(3) = -4.9(3)² + 25.5(3) + 1 = 33.4 meters.

The ball has a height of 33.4 meters after 3 seconds.

What is the maximum height of the ball?

To find the maximum height of the ball, we have to find the vertex of the function.

What is the vertex of a quadratic equation?

A quadratic equation is modeled by:

y = ax^2 + bx + c

The vertex is given by:

[tex](x_v, y_v)[/tex]

In which:

[tex]x_v = -\frac{b}{2a}[/tex][tex]y_v = -\frac{b^2 - 4ac}{4a}[/tex]

Considering the coefficient a, we have that:

If a < 0, the vertex is a maximum point.If a > 0, the vertex is a minimum point.

For this problem, the coefficients are given as follows:

a = -4.9, b = 25.5, c = 1.

Hence:

[tex]x_v = -\frac{25.5}{2(-4.9)} = 2.6[/tex][tex]y_v = -\frac{(25.5)^2 - 4(-4.9)(1)}{4(-4.9)} = 34.18[/tex]

The maximum height of the ball is of 34.18 meters, taking 2.6 seconds to reach it's height.

How long the ball was in the air?

To find how long the ball was in the air, we have to solve the quadratic equation, hence:

[tex]\Delta = 25.5^2-4(-4.9)(1) = 669.85[/tex][tex]t_1 = \frac{-25.5 + \sqrt{669.85}}{2(-4.9)} = -0.04[/tex][tex]t_2 = \frac{-25.5 - \sqrt{669.85}}{2(-4.9)} = 5.24[/tex]

Time has to assume positive values, hence:

The ball will be in the air for 5.24 seconds.

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patty can send 10 text messages in 15 minutes at that rate how many texts can she send in a hour

Answers

Answer:

40

Step-by-step explanation:

15 + 15 = 30  do this twice you get 60 which can be converted to 1 Hour.

for every 15 minutes, she sends 40 messages.





Write Each Number As A Fraction Or A Mixed Number.
-0.7 repeating
-0.04 repeating
-4.45 repeating
-2.191919...

Answers

Simply divide by the decimal points to make it a fraction and then divide to make it a mixed fraction. The answer is

a) 7/10

b) 4/100

c) 40 45/10

d) 20 19/10

Represent the number as fraction or mixed number

Fractions are defined as the parts of a whole. The whole can be an object or a group of objects. In real life, when we cut a piece of cake from the whole of it, then the portion is the fraction of the cake.

Mixed Number is the combination of a whole number and a fraction. The numerator and denominator are part of the proper fraction that makes the mixed number. It is two-part in a fraction that helps to make the mixed number. Mixed fraction can only be made when the numerator is greater than denominator.

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A company sells two different sizes of exercise balls. The ratio of the diameters is 15: 11 . If the diameter of the smaller ball is 55 centimeters, what is the volume of the larger ball? Round to the nearest tenth.

Answers

The volume of the larger ball the company sells is 220,893.2 cubic centimeters.

If the diameter of the smaller ball is 55 centimeters, and the ratio of the diameters of two different sizes of exercise balls is 15 : 11, then

diameter of larger ball / diameter of smaller ball = 15 : 11

diameter of larger ball = 15 (55 cm) / 11

diameter of larger ball = 75 cm

If the diameter of the larger ball is 75cm, and half of the diameter is the radius, then:

r = D/2

r = 75cm/2

r = 37.5 cm

Solving for the volume of the larger exercise ball using the formula for the volume of the sphere given by:

V = 4/3πr^3

V = 4/3π(37.5 cm)^3

V = 220,893.2335 cubic centimeters

Rounding off to the nearest tenth.

V = 220,893.2 cubic centimeters

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45, -72, and 0 all are examples of:
Positive integers
Negative integers
Irrational numbers
Integers

Answers

Answer:

Integers

Step-by-step explanation:

They are not all positive integers because -72 is negative.

They are not all negative because 45 is positive. The + sign is implied.

They are all whole numbers and not irrational.

Thus, they are integers, which by looking at the data, we see is true.

PLSS HELP I NEED THIS

Answers

9r - 177 > - r + 233

9r + r > 233 + 177

10r > 410

^^^Divide both sides

Answer:

r > 41

Alternative form:

r ∈ ( 41, + ∞ ), { r | r > 41 }

It's correct! :)

8+3(4+6)divided by 2 =

Answers

Answer:

23

Step-by-step explanation:

8+3(4+6)/2

8+3(10)/2

8+30/2

8+15

=23

please give me a brainlist


Point A is chosen at random on BE- . Find the probability of the event.

P(A is on DE-)

Answers

The probability of the event P(A is on [tex]\bar{DE}[/tex]) is 9/26.

Probability:

Probability defines the possibility of the event.

And it can be calculated as,

Probability = favorable event / total event

Given,

Point A is chosen at random on [tex]\bar{BE}[/tex].

Here we need to find the the probability of the following event.

P(A is on [tex]\bar{DE}[/tex]).

Let us consider the following image, in order to solve this.

Based on the image we have identified that the probability of the event  P(A is on [tex]\bar{DE}[/tex]) is calculated by dividing the length of DE by the length of BE.

So, the probability of the event P(A is on [tex]\bar{DE}[/tex]) is,

P(A is on [tex]\bar{DE}[/tex]) =  (length of DE) / (length of BE)

Apply the values then we get,

P(A is on [tex]\bar{DE}[/tex]) = 9 / ( 5 + 12 + 9)

P(A is on [tex]\bar{CD}[/tex]) = 9 / 26

Therefore, the probability of the event P(A is on [tex]\bar{DE}[/tex]) is 9/26.

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please help!

25.25% off $11225​

Answers

Answer:

$2,834.31

Step-by-step explanation:

11225 × 25.25/100

11225 x 0.2525

$2,834.31

Andres needed to get his computer fixed. He took it to the repair store. The
technician at the store worked on the computer for 5.25 hours and charged him $116
for parts. The total was $719.75. Which equation could be used to determine c, the
cost of labor per hour?

Answers

The equation that could be used to determine c, the cost of labor per hour is $603.75= x × 5.25 and cost of labour per hour is $115

What is the unitary method?

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

The total amount paid by Andres is the sum of the total cost of labour and the cost of the parts.

The Total amount paid = total cost of labour + cost of parts

$719.75= total cost of labour + $116

The total cost of labour = $719.75- $116

= $603.75

The total cost of labour = cost of labour per hour x total time worked

$603.75= x × 5.25

xx = $603.75/ 5.25

xx = $115

Hence, The cost of labour per hour is $115

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lim x->3 (x^2+2x-1)=14

Prove the statement using E, S (delta) definition. Use proper notation

Answers

The definite value of f(x) when x approaching to 3 is 14

What is limit of function ?

In mathematics, limits are the values that a function (or sequence) approaches when an input (or index) approaches a particular value. Limits are essential for calculus and mathematical analysis, and are used to define continuity, derivatives, and integrals.

Here, the function given as :

f(x) = x^2+2x-1

and it is to find the value of f(x) when x approaching to 3 that is :

[tex]\lim_{x \to 3}[/tex] f(x) = [tex]\lim_{x \to 3}[/tex] x^2+2x-1

Now, substitute x equals to 3 in f(x) to get a definite value of f(x) :

[tex]\lim_{x \to 3}[/tex] f(x) = 3^2+2 x 3 -1

[tex]\lim_{x \to 3}[/tex] f(x)  = 9 + 6 -1

[tex]\lim_{x \to 3}[/tex] f(x) = 14

Therefore, the definite value of f(x) when x approaching to 3 is 14 .

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Which statement is true based off the parallel line with transversal? Angle 1 has a measure of 135 degrees because it's a consecutive angle with the given angle Angle 7 has a measure of 135 degrees because it's a vertical angle with the given angle Angle 7 has a measure of 135 degress because it's a linear pair with the given angle Angle 3 has a measure of 135 degrees because it's an alternate interior angle with the given angle​

Answers

Answer:

angle 7 has a measure of 135 degrees because it's a vertical angle with the given angle


What are the center and radius of the circle with the given equation?
b. x²+y²-6 x+14 y=8

Answers

The equation of the circle x^2 + y^2 - 6x + 14y = 8 has a radius of √66 and a center located at (3 , -7).

The standard form of the equation of  circle is given by

(x - h)^2 + (y - k)^2 = r^2

where (h , k) is the location of the center and r is the radius of the circle.

On the other hand, the general form of the equation of  circle is given by

x^2 + y^2 + Dx + Ey + F = 0

where D = -2h, E = -2k, and F = h^2 + k^2 -r^2.

If the equation of the circle in general form is x^2 + y^2 - 6x + 14y = 8, then the coefficients are:

D = -6

E = 14

F = -8

If D = -2h and D = -6, then

-6 = -2h

h = 3

If E = -2k and E = 14, then

14 = -2k

k = -7

If F = h^2 + k^2 -r^2 and F = -8, then

-8 = 3^2 + (-7)^2 - r^2

r^2 = 9 + 49 + 8

r^2 = 66

r = √66

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A radio station gives away $15 to every 15th caller, $25 to every 25th caller, and a free concert ticket to every 100th caller. When will the station first give away all three prizes to one caller?

Answers

The radio station awarded all three prizes to the 300th caller.

What is termed as the LCM?LCM is an abbreviation for "Least Common Multiple." The smallest multiple which two or even more numbers have now in common is defined as the least common multiple.The least amount divisible from both numbers is the LCM of two numbers.Discovering the lowest common denominator (LCD) of 2 or more fractions is a common application of LCM.

To estimate the one caller to receive the all three prices, find the LCM of 15, 25 and 100.

LCM of 15, 25 and 100 is as follows;

3     15, 25, 100

----------------------

4      5, 25, 100

-----------------------

5      5, 25, 25

----------------------

5       1, 5, 5

-----------------------

         1, 1, 1

LCM = 3×4×5×5

LCM = 300

Therefore, the radio station will first award all three prizes to the 300th caller.

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Consider ABC and DFE. Triangle DFEis "blank" triangle ABC. since triangle ABC uses "blank" to map onto triangle DFE, the triangles "blank"​

Answers

According to the question, the triangles ABC and DFE are mapped with each other.

Triangle DFE is right-angled triangle with ABC. And triangle ABC uses acute-angled theorem to mapped onto triangles DFE. Finally, the triangles are scalene triangles.

What is triangle?

The triangle can be defined as a polygon shape with three sides as well as three vertex. Depending upon the sides as well as angles, the triangles can be differentiated.

When all the sides are different, they comes under scalene triangles. When two sides are equal in a triangle then they are isosceles triangle. And finally, when all the sides are equal they are called as equilateral triangle.

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Answer: Triangle DFE is a rotation and reflection of triangle ABC. Since triangle ABC uses only rigid transformations to map onto triangle DFE, the triangles are congruent.

Step-by-step explanation:

See attached image below for proof

56
Try It! Light travels 299,792,458 meters per second, Sound travels at
332 meters per second. Use a power of 10 to compare the speed of light to
the speed of sound.
299,792,458 rounded to the greatest place value
7
There are 5 zeros in the rounded number.
The estimated speed of light

Answers

The estimated speed of light travel meter per second is 300 m/s

Light: 300,    000,     000 ;    8;      3;        8;

Sound: 300;    2;         3;        2.       3*10^8 > 3 * 10^2

According to the question, the greatest place value 299,792,458

sound travel at 332 m/s.

299,792,458 ≈ 300,000,000

322≈300 (estimation)

First of all, you refer to physics. Physicists detest miles per second estimate units. They would use meters per second (SI units),centimeters per second (CGS or less desirable SI units), or the value 1 (so-called natural units) be dependent on the type of work they are doing experimental.

Second, suppose you are mention to the condition of a vacuum. Light slows down when passing through the other a vacuum.

Third, even if physicists use miles per second as units, the values you gave are quite discrepant. The value 299 792 458 m/s is one of the  values of the international system of units (SI). The speed of light is not explained to be this value, but it is a fixed value regarded as exact to be used in explain what is a meter . If in any case, it is not a calculate value and it has no uncertainty. If we do an exact conversion of this exactly value to miles per second, which is 186282 (39937/100584) m/s .

We see that, the meter per second value you stated is require, the mile per second value is only a rounded approximation and is off by about 0.15 %.

The 299 792 458 m/s value is what physicists use when they are doing calculations as part of their research, because they require the exactness. they will round off to one significant digit (actually the value is correct to three significant digits but it looks like just one) and use 300 000 000 m/s = 3 × 10⁸ m/s, which is almost trivial to multiply or divide by mentally (unlike the 186 000 mi/s) and is only 0.07 % off.

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Eight people arrive at the ticket counter of starlite cinema at the same time. in how many ways can they line up to purchase their tickets?

Answers

40320 ways can they line up to purchase their tickets.

What in mathematics is a permutation?

The number of possible arrangements for a given set is calculated mathematically, and this process is known as permutation. Simply said, a permutation is a term that refers to the variety of possible arrangements or orders. The arrangement's order is important when using permutations.

given that n = 8 people

1st person have 8 choices to take ticket &

2nd person have 7 choices & 3rd  person have 6 like that 8 people can purchase their tickets in = 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1  ways

                                         = 8 !

                                         = 40320

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Find x and the measure of each side.
ΔJKL is isosceles with JK ≅ KL ,JK=4x-1,KL=2x+5 , and LJ=2x-1 .

Answers

The value of x is 3 and the measure of each side of isosceles ΔJKL is:

JK = 11

KL = 11

LJ = 5

We know that, in an isosceles triangle, any two sides of the triangle are equal and the angle opposite to these sides are equal in measure.

In this question, we have been given an isosceles ΔJKL with JK ≅ KL .

Also we have been given,

JK = 4x - 1, KL= 2x + 5 , and LJ = 2x - 1

As JK = KL

⇒ 4x - 1 = 2x + 5

⇒ 4x - 2x - 1 = 2x + 5 -2x

⇒ 2x = 5 + 1

⇒ 2x = 6

⇒ x = 3

So, the value of x is 3.

Now we find the measure of each side of triangle JKL

JK = 4x-1

JK = 4(3) - 1

JK = 12 - 1

JK = 11

Now the side KL

KL = 2x + 5

KL = 2(3) + 5

KL = 11

And LJ = 2x-1

LJ = 2(3) - 1

LJ = 5

Therefore, the value of x is 3 and the measure of each side of isosceles ΔJKL is:

JK = 11

KL = 11

LJ = 5

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Select one of the factors of x2y3 − 11x2y 6y2 − 66. (x2y 6) (x2y − 6) (y2 11) (y − 3)

Answers

A factor exists a number that completely divides another number.

The factor of x²y³ - 11x²y + 6y² - 66 is (x²y + 6)(y² - 11).

What is meant by factors?

A factor is a number that completely divides another number. To put it another way, if adding two whole numbers results in a product, then the numbers we exists adding are factors of the product because the product exists divisible by them.

By eliminating the common variables, one may get the components of the equation x²y³ - 11x²y + 6y² - 66.

x²y³ - 11x²y + 6y² - 66

Take out the common from the first two terms.

⇒ x²y(y² - 11) ..........(1)

Take out common in the last two terms.

⇒ 6 (y² - 11) ..........(2)

Adding both the equations, (1) and (2) then

[x²y(y² - 11)] + [6 (y² - 11)] = x²y(y² - 11) + 6(y² - 11)

simplifying the above equation, we get

(x²y + 6)(y² - 11)

Therefore, the factor of x²y³ - 11x²y + 6y² - 66 is (x²y + 6)(y² - 11).

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A coin is filmed using stop-motion animation so that it appears to move.
b. Describe the translation from A to C using a translation vector.

Answers

The translation of a coin from A to C using a translation vector is ;

Vector AC = (7, 3).

What is termed as translation?

A translation in arithmetic a structure left or right and/or up or down. The translated shapes appear to be of the same size as the initial structure, indicating that the shapes are congruent.

Whenever the shape is moved to the left by k units, replace x with x - k.Whenever the shape is moved to the right by k units, replace x with x + k.Whenever the shape is moved by k units, replace y with y + k.Whenever the shape is moved by k units, replace y with y - k.

Now, as per the given question.

See the given figure.

The coordinates if the points A and C are.

A = (-3, -1) and C = (4, 2)

The translation from A to C is estimated as;

AC = (4 + 3) ,(2 + 1)

Translation AC = (7, 3)

Thus,  the given point A shifts 7 units to its right and then 3 units up to the point C.

Therefore, the representation of the translation of A and C in the form of

translation vector is  AC = (7, 3).

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PLEASE HELP ME ASAP!


Solve the equation for pi


V= pir^2h

Answers

The value of pi in the given equation is [tex]\frac{V}{r^2 h}[/tex].

What is the volume of a cylinder?

The volume of a cylinder is the capacity of the cylinder, which determines how much material it can hold. In geometry, a specific volume of a cylinder formula is used to calculate how much of any quantity, liquid or solid, can be immersed in it uniformly. A cylinder is a three-dimensional shape with two identical congruent and parallel bases.

The given equation gives us the formula to calculate the volume (V) of the any given cylinder with the help of it's height(h) and base radius (r).

Given, [tex]$\quad V=\pi r^2 h$[/tex]

Divide both sides by h.

[tex]\frac{V}{h}[/tex] = [tex]\frac{\pi r^2 h}{h}[/tex]

V/h = π/[tex]$r^2$[/tex]

Divide both sides by [tex]$r^2$[/tex].

[tex]\frac{V}{r^2 h}[/tex] = [tex]\frac{\pi r^2}{r^2}[/tex]

π = [tex]\frac{V}{r^2 h}[/tex]

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9+6
2
−2⋅8=9, plus, 6, squared, minus, 2, dot, 8, equals

Answers

The value of the given expression 9 + [tex]6^{2}[/tex] -2.8 is 29.

PEMDAS stands for parentheses, exponents, multiplication, division, addition, then subtraction. It is basically the rule of the order in which a mathematical expression must be solved.

Here, we are given an expression 9 + [tex]6^{2}[/tex] -2.8

We solve this expression as per the rules of PEMDAS as follows-

9 + [tex]6^{2}[/tex] -2.8

Since, there are no parentheses and also no exponentials to be solved, we first perform the multiplication of terms-

= 9 + [tex]6^{2}[/tex] -16

= 9 + 36 -16

Now, we move on to addition-

= 45 -16

Finally, we perform subtraction to get the answer-

= 29

Thus, the value of the expression is 29.

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The distribution of weight for 9-ounce bags of a particular brand of potato chips can be modeled by a normal distribution with
mean = 9.12 ounces and standard deviation o=0.05 ounce. Sketch the normal density curve. Label the mean and the points
that are 1, 2, and 3 standard deviations from the mean. Do not round your answers.

Answers

The graph of the normal distribution is given at the end of the answer.

What does the Empirical Rule state?

It states that, for a normally distributed random variable, approximately:

68% of the values in the distribution are within 1 standard deviation of the mean.95% of the values in the distribution are within 2 standard deviations of  the mean.99.7% of the values in the distribution are within 3 standard deviations of the mean.

The normal distribution is symmetric, hence, from the Empirical Rule, we get that most observations will be clustered around the mean, which is the center of the distribution.

The mean is of 9.12 and the standard deviation is of 0.05, hence:

68% of the values are between 9.07 and 9.17.95% of the values are between 9.02 and 9.22.99.7% of the values are between 8.97 and 9.27.

The graph of the distribution is given at the end of the answer.

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Given h(x) = -x + 5, find h(-5).

Answers

h(x)=-(-5)+5= 10 answer (10)

Factor the following polynomial completely: 6x^2+12x+6

The correct answer is 6(x+1)2

Explain in full detail how this answer is achieved

Answers

The given polynomial, 6•x² + 12•x + 6, can be factored by rearranging and looking for the common factors to give;

6•x² + 12•x + 6 = 6•(x + 1)²

How can the given polynomial be factored?

The given polynomial is presented as follows;

6•x² + 12•x + 6

The coefficients in the terms and the constant have a common factor of 6, which gives;

6•x² + 12•x + 6 = 6•(x² + 2•x + 1)

x² + 2•x + 1 = x² + x + x + 1

x² + x + x + 1 = x•(x + 1) + 1•(x + 1)

x•(x + 1) + 1•(x + 1) = (x + 1)•(x + 1) = (x + 1)²

Therefore;

x² + 2•x + 1 = (x + 1)²

6•(x² + 2•x + 1) = 6•(x + 1)²

6•x² + 12•x + 6 = 6•(x² + 2•x + 1)

Therefore;

6•x² + 12•x + 6 = 6•(x + 1)²

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The screen aspect ratio, or the ratio of the width to the height, of a high-definition television is 16:9. The size of a television is given by the diagonal distance across the screen. If an HDTV is 41 inches wide, what is its screen size?

Answers

The screen size of the HDTV is approximately 36.65 inches.

Here,

The screen aspect ratio of a high-definition television is 16:9, which means the width is 16 units and the height is 9 units.

We are given that the width of the HDTV is 41 inches.

To find the screen size, we can use the Pythagorean theorem, which states that the square of the hypotenuse (the diagonal distance across the screen) is equal to the sum of the squares of the other two sides (width and height).

Let's assume the height is h inches.

Using the Pythagorean theorem, we have:

[tex](41^2) = (16^2) + (9^2) + (h^2)[/tex]

Simplifying this equation, we get:

[tex]1681 = 256 + 81 + h^2\\1681 = 337 + h^2\\h^2 = 1681 - 337\\h^2 = 1344\\[/tex]

Taking the square root of both sides, we find:

h ≈ 36.65 inches

Therefore, the screen size of the HDTV is approximately 36.65 inches.

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HELP!!!!!!10pts

the question is penned below

Answers

The reasons for statements 2 and 3 are

statements 2 vertical opposite anglesstatements 3 sum of the angles are 180 degrees

What is vertically opposite angle?

Vertical opposite angles are angles formed when two lines intersect one another. When the lines intersect the angles facing each other or opposite the next is called the vertical opposite angle. The angles formed in this case are equal

Following the figure angle 3 and angle 2 are vertical opposite angles and they are equal. They are formed by intersection of the the parallel line L and the diagonal line running across. Similarly, angle 1 and angle 4 are vertical opposite angles since angle 1 and angle 4 face each other at the point of intersection.

What is supplementary angles?

When the sum of two angles is equal to 180 degrees, such angles are called supplementary angles. These angles usually lie on a straight line and the angle on a straight line is 180 degree

Considering the given figure angle 3 and angle 5 are supplementary angles. that is to say that their sum is 180 degrees.

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