PLEASEEEEE HELPPP MEEE WITHH THIS QUESTIONN PLEASEEE

PLEASEEEEE HELPPP MEEE WITHH THIS QUESTIONN PLEASEEE

Answers

Answer 1

Answer: A

Step-by-step explanation:

To find the average rate of change, you use the formula [tex]\frac{f(b)-f(a)}{b-a}[/tex]. The best way to get the correct answer is to plug in each interval to make sure it equals 0.

-1 ≤ x ≤ 2: Correct

[tex]\frac{f(2)-f(-1)}{2-(-1)}[/tex]                                    [solve for f(2) and f(1)]

[tex]\frac{1-1}{3}=\frac{0}{3} =0[/tex]

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

-3 ≤ x ≤ -2: Incorrect

[tex]\frac{f(-2)-f(-3)}{-2-(-3)}[/tex]                                  [solve for f(-2) and f(-3)]

[tex]\frac{5-11}{1} =\frac{-6}{1}=-6[/tex]

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

-5 ≤ x ≤ 5: Incorrect

[tex]\frac{f(5)-f(-5)}{5-(-5)}[/tex]                                    [solve for f(5) and f(-5)]

[tex]\frac{19-29}{10} =\frac{-10}{10} =-1[/tex]

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

2 ≤ x ≤ 3: Incorrect

[tex]\frac{f(3)-f(2)}{3-2}[/tex]                                      [solve for f(3) and f(2)]

[tex]\frac{5-1}{1} =\frac{4}{1} =4[/tex]

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

After going through all the intervals, we found that A was the only one that has an average rate of change of 0.


Related Questions

So this is the question: Meg has 7/8 jug of orange juice. How many 1/2 jug servings can Meg get from that jug? Please help me!

Answers

Answer:

she can only get 1 servings

Answer:

1 cause 4/8 is a half  of the jug at it's full  brethall

so one 1/2

Tim rolls two six-sided dice and flips a coin.
All of the following are possible outcomes, EXCEPT:________.
a. 1, Tails, 6
b. Heads, 3, 4
c. 2, 8, Heads
d. 5, 2, Tails

Answers

Answer:

C. 5, 2, Tails is not a possible outcome

Step-by-step explanation:

We are presented with three items

two dices and a coin

The sample space for a dice is S=(1,2,3,4,5,6)

and the sample space for a coin is S=(head and tail)

In the options provided all are possible outcomes for the two dices and the coin except for options "C" ,and this is because "8" is not a sample space in a dice

Answer:

2,8 Heads

Step-by-step explanation:

A standard coin has two values, {Heads or Tails}, while a standard die has six values {1, 2, 3, 4, 5, or 6}.  So, obtaining a 2 is possible, however the 8 is not.

A type of Conic where the plane is tilted and intersects only on one cone to form a bounded curve.

Answers

Answer:

Ellipse when the (tilted) plane intersects only one cone to form a bounded curve.

Step-by-step explanation:

hope it will help :)

Ellipse.

In mathematics, the ellipse is a plane curve, proportional to a closed oval shape. In particular, the ellipse is a curve that encloses two points in such a way that, for each point on the curve, the sum of the two distances from that point to the two points is constant.  

From the perspective of solid shapes, the ellipses can be thought of as a conical section created when a plane intersects the surface of a cone in such a way that it creates a closed curve.

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Listed below are the amounts​ (dollars) it costs for marriage proposal packages at different baseball stadiums. Find the​ range, variance, and standard deviation for the given sample data. Include appropriate units in the results. Are there any​ outliers, and are they likely to have much of an effect on the measures of​ variation?

38, 50, 50, 55, 55, 95, 95, 130, 180, 213, 250, 350, 450, 1750, 3000

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

38, 50, 50, 55, 55, 95, 95, 130, 180, 213, 250, 350, 450, 1750, 3000

The range :

(maximum - minimum) = (3000 - 38) = 2962

Variance :

Σ(x - mean)² / (n-1)

Where n = number of observations

Mean = (38+50+50+55+55+95+95+130+180+213+250+350+450+1750+3000) = 6761 / 15 = $450.73

Σ(x - mean)² = 9527804.9333334

N - 1 = 15 - 1 = 14

Hence,

Variance = Σ(x - mean)² / (n-1)

Variance = 9527804.9333334 / 14

Variance = $680557.50

Standard deviation = √variance

Standard deviation = √680557.50

Standard deviation = $824.96

CHECK IF OUTLIERS EXIST:

Using the outlier formula:

Lower outlier = Q1 - (1.5 × IQR)

Upper outlier = Q3 + (1.5 × IQR)

Q1 = 55 ; Q3 = 350 ; IQR = 295

Lower outlier = 55 - (1.5 × 295) = - 387.5

Upper outlier = 350 + (1.5 × 295) = 792.5

Remove values below the lower outlier value and values above the upper outlier value.

Hence outliers in the data are : 1750 and 3000

To save computation time :

We can recalculate our statistical measure by leaving out the outliers using online, excel or calculator functions :

Data without outlier :

38, 50, 50, 55, 55, 95, 95, 130, 180, 213, 250, 350, 450

Range = (450 - 38) = 412

Variance = Σ(x - mean)² / (n-1)

Variance = 201626.77 / 12

Variance = $16,802.23

Standard deviation:

√variance

√16,802.23

= $129.62341

According to the results obtained the presence of outliers has a great effect on the outcome the result.

Luther drives 17 miles to work each day . After work he takes a short cut home which is 14 miles . How many miles does he drive to and from work each week (5 days)

Answers

Step-by-step explanation:

17 miles = 1 day to work

14 miles =1 day to home

Therefore total miles driven in 5 days =

( 17×5) +(14×5) = 105+60

ANSWER =165 miles per week

Answer:

155 miles each week

Step-by-step explanation:

One day is 17 miles to and 14 miles home = 17+14 = 31

He does this 5 days a week

5 * 31 = 155 miles

In an 8 hour and 30 minute shift a patrolman drove 272 miles. What was his average rate(mph) during the shift?

Answers

Answer:

32 mph

Step-by-step explanation:

We want to find the patrolman's rate in miles per hour during the shift. Since we want to find miles per hour, we must divide the miles he drove by the number of hours.

rate = miles / hours

He drove 272 miles.

rate = 272 miles / hours

He drove for 8 hours and 30 minutes. There are 60 minutes in 1 hour. One half of 60 is 30. Therefore, we can also say he drove eight and a half, or 8.5 hours.

rate= 272 miles / 8.5 hours

rate = 32 miles / hour

rate= 32 mph

His average rate during the shift was 32 miles per hour.

Answer:

32 mph

Step-by-step explanation:

To answer this, find the average rate of change

 272 mi

------------- = 32 mph

 8.5 hr

what is the definition of algebraic expression

Answers

Answer:

An algebraic expression (in mathematics) can be defined as an expression which is made up of variables and constants along with algebraic operations( i.e. addition, subtraction etc)

Answer:

It is an expression built up from integer constants and algebric expressions.

A contractor leans a 21-foot ladder against a building. The distance from the ground to the top of the ladder is 9 feet more than the distance from the building to the base of the ladder. How far up the building is the ladder to the nearest tenth of a foot

Answers

Answer:

The distance from the ground to the top of the ladder = 18.7 feet

Step-by-step explanation:

The distance from the ground to the top of the ladder is 9 feet more than the distance from the building to the base of the ladder.

distance from the building to the base of the ladder.= X

The distance from the ground to the top of the ladder = 9+x

Solving the triangle using Pythagorean theorem

X² +(x+9)²= 21²

X² + x² + 18x +81= 441

2x² +18x -360 = 0

X² +9x -180 = 0

X= (-9-28.3)/2 or (-9+28.3)/2

Definitely x is going to be a positive number

So

X= (-9+28.3)/2

X=9.65 feet

The distance from the ground to the top of the ladder = 9+x

The distance from the ground to the top of the ladder = 9+9.65

The distance from the ground to the top of the ladder = 18.65

The distance from the ground to the top of the ladder = 18.7 feet

Building is 9.65 foot far from ladder.

Length of ladder = 21 foot. This diagonal ladder is Hypotenuse to the right angled triangle formed between building & ladder.

Let the distance from building to base of ladder = x. This is the base of right angled triangle.

So, distance from ground to top of ladder = x + 9. This is the height of right angled triangle.

As per Pythagorus Theorem,

[tex]Hypotenuse^2 = Base^2 + Height^2[/tex]

[tex]21^2 = x^2 + (x+9)^2[/tex]

441 = [tex]x^2 + x^2 + 81 + 18x[/tex]  

360 = [tex]2x^2 + 18x[/tex]

[tex]2x^2 + 18x[/tex] - 360 = 0

x = -b + [tex]\sqrt{b^2 - 4ac[/tex] / 2a  

x = 9.65 { Building distance to ladder base }

To learn more, refer https://brainly.com/question/17275943

Endpoints of segment MN have coordinates (0, 0), (5, 1). The endpoints of segment AB have coordinates (1 1/2 , 2 1/4 ) and (−2 1/4 , k).
What value of k makes these segments perpendicular?

Answers

Answer:

k=21

Step-by-step explanation:

Find the slope of MN which is 1/5 (use the slope formula)

Use the slope formula for AB using k as y_2

Substitute and you get k=21

21-2.25/-2.25-1.5=-5

The lines are perpendicular because the slopes are the negative reciprocal of one another.

8x - 3 = 5 (2x + 1) solve for x

Answers

Answer:

x=−4

Step-by-step explanation:

Answer:

-4

Step-by-step explanation:

Given:

8x - 3 = 5 (2x + 1)

Solving for x:

8x - 3 = 10x + 510x - 8x = -3 - 52x = - 8x = -8/2x = -4

In a parallelogram ABCD, AB is parallel to CD. Which two sides are opposite sides ? sides AB and CD sides BC and CD sides AB and AD sides AB and BC

Answers

Answer:

AB and CD

Step-by-step explanation:

Given

Shape: Parallelogram

Parallel Side: AB and CD

Required

Determine the opposite sides

From the given parameters, we understand that:

AB is parallel to CD

Since they are parallel, then AB is opposite to CD

Hence, the opposite sides are AB and CD

the sum of a number x and 4 is less than 12 which of the following inequalities represents this statment​

Answers

Answer:

x + 4  < 12

Step-by-step explanation:

Given

sum of a number x and 4

It can be written mathematically as

x + 4

Then

x + 4 is less than 12

less than is represented as <

Thus,

x + 4  < 12

Thus, inequality is x + 4  < 12

What is the. Answer and why ?????????,?????????????

Answers

Answer:

Option b (28 + 63)

Step-by-step explanation:

7(4+9)

7(13)

7×13= 91

28 + 63 = 91

Both give the same answer

Answer:

The sum 28 + 63 can be expressed as 7 ( 4 + 9 )

Step-by-step explanation:

To solve the problem you need to be aware of the distributive property of multiplication.  This property simply says that a multiple of a group of addens, aka the sum in the parenthesis, can be multiplied individually and summed.

The 7 infront of the parenthesis implies the multiplication operation on the grouping of the sum of 4 and 9.

You can rewrite it as such:

7 * ( 4 + 9 )

= 7 * 4 + 7 * 9

= 28 + 63

Note, how we simply used the multiplier 7 distributed to each term within the parenthesis to create our desired sum.

Cheers.

HURRY PLEASE if ray NP bisects angle MNQ and measure of angle MNQ= 8x + 12 and measure of PNQ= 78 degrees and measure of angle RNM= 3y -9, find the values of x and y

Answers

Answer:

the measure of x is 18° and the measure of y is 29°

Step-by-step explanation:

Step 1

Find the measure of angle x

we know that

If ray NP bisects <MNQ

then

m<MNQ=m<PNM+m<PNQ ------> equation A

and

m<PNM=m<PNQ -------> equation B

we have that

m<MNQ=(8x+12)°

m<PNQ=78°

so

substitute in equation A

(8x+12)=78+78-------> 8x+12=156------> 8x=156-12

8x=144------> x=18°

Step 2

Find the measure of angle y

we have

m<PNM=(3y-9)°

m<PNM=78°

so

3y-9=78------> 3y=87------> y=29°

therefore

the answer is

the measure of x is 18° and the measure of y is 29°

The 10th term of an AP is -27 and the 5th term is -12, what is the 18th term?
Also find the sum of its 25 terms.​

Answers

Answer:10th term: -27

5th term: - 12

d= -27+12/5

= -3

a+(n-1)d=-12

a+(5–1)d=-12

a+4d= -12

a=-12–4d

a=-12-(4×-3)

a=-12+12=0

18  term=a + (18–1)d

=0+(17×-3)

51

a+9d=-27......(1)

a+4d=-12.....(2)

make a the subject of equation 2 and put into equation 1

-12+4d+9d=-27

-12+13d=-27

d=-15\13

put d into equation 1

a+9(-15/13)=-27

a=16.6

a+17d=x

17+16.6(-15/13)

x=-2 is the 18th term

25÷2(16.6+15.6(-15/13)

=-208.4

Find the distance between the points.
(1, 5), (-7, -2)

Answers

Answer:

Distance = [tex]\sqrt{113}[/tex]

Step-by-step explanation:

[tex](1, 5) = (x_1,y_1)\\ (-7, -2)=(x_2,y_2)\\\\d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\ \\d = \sqrt{(-7-1)^2+(-2-5)^2}\\ \\d = \sqrt{(-8)^2+(-7)^2}\\ \\d = \sqrt{64+49}\\ \\d = \sqrt{113} \\\\[/tex]

Answer:[tex]\sqrt{113}[/tex]

Step-by-step explanation:

Distance formula: [tex]\sqrt{(x2-x1)^2+(y2-y1)^2}[/tex]

x1=1     x2=-7     y1=5     y2=-2

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

 [tex]\sqrt{(-7-1)^2+(-2-5)^2}[/tex]

=[tex]\sqrt{(-8)^2+(-7)^2}[/tex]

=[tex]\sqrt{64+49}[/tex]

=[tex]\sqrt{113}[/tex]

Hope this helps!! :)

Please let me know if you have any question or need further explanation

Solve the equation 3(x - 4) = 7. What would be the next step in simplifying by the distribution property? 3x - 4 = 7 3x + 12 = 7 3x + 4 = 7 3x - 12 = 7

Answers

Answer:

3x-12 =7

Step-by-step explanation:

you distribute the 3 to the x and the -4

The equation for a parabola has the form y=ax2+bx+c, where a, b, and c are constants and a≠0. Find an equation for the parabola that passes through the points (−1,8), (2,−4), and (−6,−12).

Answers

Answer:

The equation for the parabola that passes through the points (−1,8), (2,−4), and (−6,−12) is [tex]y = -x^{2}-3\cdot x +6[/tex].

Step-by-step explanation:

Let be (−1,8), (2,−4), and (−6,−12) points contained in a parabola, which is represented by a second-order polynomial. To determine the constant of the second-order polynomial, the following system of equations must be solved:

[tex]a - b+c = 8[/tex]

[tex]4\cdot a +2\cdot b +c = -4[/tex]

[tex]36\cdot a -6\cdot b +c = -12[/tex]

There are several methods for solving this: Equalization, Elimination, Substitution, Determinant and Matrix. The solution of this system is: [tex]a = -1[/tex], [tex]b = -3[/tex] and [tex]c = 6[/tex]. Hence, the equation for the parabola that passes through the points (−1,8), (2,−4), and (−6,−12) is [tex]y = -x^{2}-3\cdot x +6[/tex].

30 points! need asap The endpoints of CD¯¯¯¯¯¯¯¯ are C(5, 3) and D(−3,−6). Find the coordinates of the midpoint M. Coordinates of midpoint M:

Answers

Answer:

The midpoint is ( 1, -1.5)

Step-by-step explanation:

To find the midpoint

Add the x coordinates of the endpoints and divide by 2 to get the x coordinate of the midpoint

(5+-3)/2 = 2/2 = 1

Add the y coordinates of the endpoints and divide by 2 to get the y coordinate of the midpoint

(3+-6)/2 = -3/2 = -1.5

The midpoint is ( 1, -1.5)

Answer:

mid point = 1,  -1.5

Step-by-step explanation:

mid point between two points C(5, 3) and D(-3, -6)

M = (x1 + x2)/2  , (y1 + y2)/2

mid point = (5 + (-3)) / 2 ,  (3 + -6)/2

mid point = 2/2 , -3/2

mid point = 1,  -1.5

Please help I have spent hours trying to do...

Answers

Answer:

914.4 mm0.0479594 km

Step-by-step explanation:

For units conversion, use a conversion factor ratio with the units you do want in the numerator and the units you don't want in the denominator. The numbers in the numerator and denominator give the ratio a value of 1: the numerator is equal to the denominator--just in different units.

__

1. For feet to mm, you need a couple of additional conversion factors besides the ones shown:

  1 foot = 12 in

  1 cm = 10 mm

So, the conversion is ...

  [tex](3\text{ ft})\times\dfrac{12\text{ in}}{1\text{ ft}}\times\dfrac{2.54\text{ cm}}{1\text{ in}}\times\dfrac{10\text{ mm}}{1\text{ cm}}=3\times12\times2.54\times10\text{ mm}\\\\=\boxed{914.4\text{ mm}}[/tex]

__

2. The additional factor you need for this problem is ...

  1 mile = 5280 feet

So, the conversion is ...

  [tex](157\text{ ft})\times\dfrac{1\text{ mi}}{5280\text{ ft}}\times\dfrac{1\text{ km}}{0.62\text{ mi}}=\dfrac{157}{5280\times0.62}\text{ km}\\\\\approx\boxed{0.0479594\text{ km}}[/tex]

_____

Additional comment

You can use Google to do units conversion by typing "3 feet to mm" or "157 feet to km". However, the conversion factor for the latter will be more exact than the one given in this problem. Hence the Google answer to the second question will not be applicable here.

Usa la propiedad distributiva para completar los espacios en blanco a continuación.
7x (9 - 4) = (x9) - (x 4)X6b?​

Answers

Responder:

x=6

espero haber ayudado

What is the steps to find this domain?

Answers

Answer:

The Domain of the function is the set of ALL Real numbers

Step-by-step explanation:

To find the Domain of a function, one has to examine if there are any mathematical restrictions in the function's expression that could reduce the set of Real numbers to be used in estimating all the possible function's outputs.

Typical examples are:

1) There are x-variables in the denominator of the function (you must consider then which values of x could render a zero in the denominator and therefore make it undefined)

2) the variable x appears inside an even root (like a square root), then you have to consider which values of x are not allowed if they render a negative value inside the root

3) if x appears inside logarithmic expressions (you need to exclude from the domain those x-values that render negative the expression inside the logarithm)

Another important rule to remember,is that all polynomial functions (like the one given in this case) always have for Domain the full number line (all Real numbers) because any Real number used will render another Real number via multiplications, subtractions and additions (which are the operations involved in a polynomial expression)

Plot the points (2,0) and (2,-5) on the coordinate plane below.
What is the distance between these two points?

Answers

Answer:

5 units

Step-by-step explanation:

Notice that the x-coordinate is the same for both points, but that the y-coordinates differ by five units.  The distance between these two points is therefore 5 units.

A veterinarian has 6 cats and 10 dogs in a kennel. What is the ratio of cats to dogs?

Answers

Answer:

.6

...................

Answer: 6 : 10  or 3:5

Step-by-step explanation:

If they are 6 cats and 10 dogs then the ratio of cats to dogs it 6 to 10  or 6/10

Solve for the value of X. 62 = 12 - 5x

Answers

Answer:

x = -10

Step-by-step explanation:

62 = 12 - 5x

-12 .   -12

62 - 12 = -5x

50 = -5x

__ .  __

-5 .    -5

-10 = x    

PLEASE HELP! ON TIMER! 1.Given the following functions, f(x)=x^2 g(x)=x-3 find the composition of the two functions and show your work. f(g(x)) 2.Given the following functions, f(x)=x^2 g(x)=x-3 find the composition of the two functions and show your work. g(f(x)) 3. what would be the domain restriction? describe how you found the answer. 1 over x-3

Answers

Answer:

I can only answer the first one for now but the answer is x^2 - 6x + 9.

Step-by-step explanation:

f(x) = x^2 and g(x) = x - 3.

To find f(g(x))  we replace the x in f(x) by g(x).

f(g(x)) = (x - 3)^2

= x^2 - 6x + 9.

Which of the following expressions demonstrates the distributive property?
O 3+ 4+ 5 = 4 + 3 + 5
O-2(5 + 7) = -2(7 +5)
O3(-8 + 1) = 3(-8) + 3(1)
6[(7)(-2)] = [(
67)](-2)

Answers

Answer:

O3(-8 + 1) = 3(-8) + 3(1)

Step-by-step explanation:

GOOD LUCK WITH BRAINLY I HOPE I HELPED :)

The expressions demonstrates the distributive property is

3(-8 + 1) = 3(-8)+ 3(1).

What is Distributive Property?

This property states that multiplying the total of two or more addends by a number will produce the same outcome as multiplying each addend by the number separately and then adding the results together.

We know the standard forms for distributive property as

For addition: a x (b+ c) = a x b + a x c

For Subtraction: ax (b- c)= a x b - a x c

1. 3+ 4+ 5 = 4 + 3 + 5 is Associative Property.

2. -2(5 + 7) = -2(7 +5) is Associative Property

3. 3(-8 + 1) = 3(-8)+ 3(1) is Distributive Property

Learn more about Distributive Property here:

https://brainly.com/question/5637942

#SPJ7

Evaluate the expression when a = 9 and b = 7.
b+5a



Help
Needed

Answers

7+5(9)
7+45
=52 is the answer

Can someone please help me rotate this 270 degrees counter clockwise

Answers

Answer:

  see attached

Step-by-step explanation:

270° CCW is the same as 90° CW. The figure will be moved to the second quadrant. The transformation of coordinates is ...

  (x, y) ⇒ (y, -x) . . . . . rotation 270° CCW or 90° CW

For example, A(-5, -3) ⇒ A'(-3, 5).


Expresa el siguiente número 14322000000000000 en notación científica *

Answers

Answer:

14322 * 10¹²

1.4322 * 10¹⁶

Step-by-step explanation:

14322000000000000

14322 * 10¹²

1.4322 * 10¹⁶

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