Drag the tiles to the correct boxes to complete the pairs.

Match the exponential functions to their y-intercepts.

Answer:

[tex]f(x)=x^2+16[/tex]

Step-by-step explanation:

By the conjugate rule, if -4i is a root, then so is +4i.  So we have 2 roots, thus, we have a second degree polynomial (namely, a quadratic).  If

x = -4i, then

x + 4i is a root.

If

x = 4i, then

x - 4i is a root.  

Having (x - 4i)(x + 4i) as roots, we can now FOIL them together to get a polynomial of least degree.

FOILing gives us

[tex]x^2+4ix-4ix-16i^2[/tex]

Notice that the +4ix and the -4ix cancel each other out, leaving you with

[tex]x^2-16i^2[/tex]

Since

[tex]i^2=-1[/tex]

we can make the substitution:

[tex]x^2-16(-1)[/tex]

which simplifies to

[tex]x^2+16[/tex]

In function notation form:

[tex]f(x)=x^2+16[/tex]

Final answer:

The polynomial function in standard form with the root -4i is f(x) = x² + 16. We derive this by realizing that the conjugate, 4i, is also a root and multiplying the factors (x + 4i)(x - 4i), simplifying to the quadratic polynomial.

Explanation:

To write a polynomial function with the given root -4i, we must take into consideration that complex roots come in conjugate pairs for polynomials with real coefficients. Hence, if -4i is a root, then its conjugate 4i must also be a root. The factors of the polynomial corresponding to these roots are (x + 4i) and (x - 4i).

We can find the polynomial by multiplying these two factors:

(x + 4i)(x - 4i)

Applying the difference of squares, we get:

x² - (4i)²

x² - (-16)

x² + 16

The polynomial function in standard form with the given root -4i is:

f(x) = x² + 16

Answer:

I believe it is "E"

Step-by-step explanation:

E-series can eat my memes

Kill me please I'm Swedish ree

Answer: The key feature in the experimental study is C. The treatment in the experiment must be applied to each of the individuals in the experimental group. This is because it is made sure that the variables and conditions in different correspondents are applied so that actual results may be concluded.

Step-by-step explanation:

Answer:

  •  x = -4, x = 0, x = 1

Step-by-step explanation:

x is a factor of all terms, so x=0 is a zero. (Eliminates choices 1 and 5.)

The sum of coefficients is 0, so x=1 is a zero. (Eliminates choices 3 and 4.)

Reversing the sign of the odd-degree terms gives signs of -++, so there is one sign change, hence one negative real root (by Descartes' rule of signs). This confirms choice 2 as the answer.

___

Of course, your graphing calculator can answer this almost as quickly.

B. 16 Inches The original length was 12 inches but since you are cutting across the cheese it will be longer. Since you are cutting across that means the width of the cheese will come into the equation as well.

Just add 12 and 4.

Check the picture below.

Answer:

KJL = 40 degrees

Step-by-step explanation:

KJL = 1/2*( arc KP - arc IP)

arc IPK=360-120=240

KP=2(IP)

Kp=2x, IP = x

3x=240, x=80

KP=160

IP=80

KJL=(160-80) / 2 = 40 degrees

Answer:

40°

Step-by-step explanation:

Answer:

18) a. h(x) = -16x² + vx + h(0) ⇒ h(x) = -16x² + 128x + 144

b. The maximum height = 400 feet

c. Attached graph

19) The rocket will reach the maximum height after 4 seconds

20) The rocket hits the ground after 9 seconds

Step-by-step explanation:

* Lets study the rule of motion for an object with constant acceleration

# The distance S = ut ± 1/2 at², where u is the initial velocity, t is the time

  and a is the acceleration of gravity

# The vertical distances h in x second is h(x) - h(0), where h(0)

   is the initial height of the object above the ground

∵ h(x) = vx + 1/2 ax², where h is the vrtical distance, v is the initial

  velocity, a is the acceleration of gravity (32 feet/second²) and x

  is the time

18)a.

∵ The value of a = -32 ft/sec² ⇒ negative because the direction

   of the motion

  is upward

∴ h(x) - h(0) = vx - (1/2)(32)(x²) ⇒ (1/2)(32) = 16

∴ h(x) = vx - 16x² + h(0)

∴ h(x) = -16x² + vx + h(0) ⇒ proved

* Find the height of the object after x seconds from the ground

∵ h(0) = 144 and v = 128 ft/sec

∴ h(x) = -16x² + 128x + 144

b.

* At the maximum height h'(x) = 0

∵ h'(x) = -32x + 128

∴ -32x + 128 = 0 ⇒ subtract 128 from both sides

∴ -32x = -128 ⇒ ÷ -32

∴ x = 4 seconds

- The time for the maximum height = 4 seconds

- Substitute this value of x in the equation of h(x)

∴ The maximum height = -16(4)² + 128(4) + 144 = 400 feet

c. Attached graph

19)

- The object will reach the maximum height after 4 seconds

20)

- When the rocket hits the ground h(x) = 0

∵ h(x) = -16x² + 128x + 144

∴ 0 = -16x² + 128x + 144 ⇒ divide the two sides by -16

∴ x² - 8x - 9 = 0 ⇒ use the factorization to find the value of x

∵ x² - 8x - 9 = 0

∴ (x - 9)( x + 1) = 0

∴ x - 9 = 0 OR x + 1 = 0

∴ x = 9 OR x = -1

- We will rejected -1 because there is no -ve value for the time

* The time for the object to hit the ground is 9 seconds

Answer:

B.   -1.5x − 3.5y = -31.5

Step-by-step explanation:

You forgot to provide the reference image which is essential to answer the question, but I managed to find it... and attach it to my answer.

In the given equation for AB, if we place the y term on the left and x term on the right, we see the slope of that line is 7/3 (y = (7x - 21.5)/3 ==> 7/3x).

We see on the image that the line PQ is perpendicular to AB.  That means that its slope is -3/7.

If we quickly check the slopes of each of the possible answers...

A. -3x + 4y = 3 ----> 4y = 3x - 3 ==> y = (3x-3)/4 => slope = 3/4

Not what we're looking for.

B. -1.5x - 3.5y = -31.5 ==> 3.5y = -1.5x + 31 ===> y = (-1.5x +31)/3.5

that gives us a slope of -1.5/3.5... We can simplify it... -3(0.5)/7(0.5) = -3/7

Exactly as predicted.

Since we have the point P (7,6), we can enter it in the equation to verify:

-1.5x - 3.5y = -31.5

-1.5 (7) - 3.5 (6) = -10.5 - 21 = -31.5  --- Verified

C. 2x + y = 20 ==> y = 20 - 2x ===> slope is -2, not what we want.

D. -2.25x + y = -9.75 ==> y = 2.25x - 9.75 ==> slop is 2.25 cannot be it.

Answer: B. -1.5x − 3.5y = -31.5

Step-by-step explanation:

Answer: The answer is C

Step-by-step explanation: If you think about it the spinner only spun 3 times and when that happens them you sum up X

(C) When the spinner is spun three times, X is the sum of the numbers the spinner lands on.

Therefore, the correct option is (C) When the spinner is spun three times, X is the sum of the numbers the spinner lands on.

Know more about binomial distribution here:

https://brainly.com/question/9325204

#SPJ2

Answer:

Domain: -6≤x<0 or 0<x≤2

Range: 1<x≤6

Step-by-step explanation:

Domain = The set of starting numbers - the x values.

Range = The set of numbers it becomes - the y values.

For the domain, it starts at -6, on the left and ends at 0; however, it doesn't include 0. Then is starts at 0, exclusive, and ends at 2.

For the range, it starts at 1, but doesn't include 1, and ends at 6, inclusive.

The domain of the given piecewise-defined function is -6≤x≤0 or 0. The domain of a function refers to the set of all possible input values or x-values of the function, while the range refers to the set of all possible output values or y-values of the function. In a piecewise-defined function, each piece has its own domain and range.

The domain of a function refers to the set of all possible input values or x-values of the function, while the range refers to the set of all possible output values or y-values of the function. In a piecewise-defined function, each piece has its own domain and range.

To determine the domain of the given piecewise-defined function, we need to identify the intervals on the x-axis where each piece of the function is defined. From the graph, we can see that the function is defined from -6 to 0, and also from 0 to 2. So the domain is -6≤x≤0 or 0

The range of the function is the set of all y-values that correspond to the x-values in the domain. Looking at the graph, we see that the function takes on values between 1 and 6, inclusive. So the range is 1≤y≤6.

Learn more about Piecewise-defined function here:

https://brainly.com/question/35538215

#SPJ2

the two numbers are 18 and 3

Answer:

1. 22 in

2. 11.304 units

Step-by-step explanation:

Formulas for the circumference are

C = 2πr

C = πd

___

1. Put the given numbers in the appropriate formula:

C = 2·(22/7)·(7/2 in) = 22 in

__

2. Put the given numbers in the appropriate formula:

C = 3.14·3.6 = 11.304 . . . units

Answer:

C. a paper clip

Step-by-step explanation:

An apple generally weighs more than 3 grams, and can go even into oz.

Depending on the type of material the backpack is made of, and also how big it is, the mass can vary, however, it is safe to say the backpack will be more than 3 grams.

A cat definitely weighs more than 3 grams. Any born cat that weighs only 3 grams will not survive.

~

For this case we have the following options:

An apple, it is known that the apple will never weigh 3 grams.

A backpack will not have that weight either.

A cat would never weigh 3 grams or be newborn.

To have an object of 3 grams, the object must be very light.

A paperclip is very likely to weigh 3 grams because it is a very small and extremely light object.

Answer:

Option C

Answer:D pie

Step-by-step explanation:

You get 2pie/2 cancel out you get pie

The period of y=cos(2x) is π, so the frequency is 1/π.

The key features of the graph are:

Amplitude: The amplitude of the graph is 1, which means the function oscillates between −1and 1.

Period: The period of the graph is π, which means the function completes one cycle every πunits on the x -axis. This is because the frequency of the function is 2, which means it completes two cycles for every 2π units on the x -axis.

Midline: The midline of the graph is y=0. This is because the function is neither shifted up nor down.

Extrema: The graph has maxima at x=2kπ​ for any integer k, and minima at x=2(2k+1)π​for any integer k.

The graph of the function y=cos(2x). The frequency of a trigonometric function is the reciprocal of its period. The period of y=cos(2x) is π, so the frequency is 1/π.

Answer:

x=14

Step-by-step explanation:

4(x - 8)³ - 18 = 846

4(x - 8)³ = 864

(x - 8)³ =216

∛(x - 8)³ =∛216

x-8 = 6

x= 6+8

x=14

Answer:

x=14

Step-by-step explanation:

look this solution :

Answer:

  x = −3

Step-by-step explanation:

A zero of a function is a value that makes one of the factors be zero.

To make x+3 = 0, x = -3.

To make x-7 = 0, x = 7.

To make x+5 = 0, x = -5.

Of these values that make the factors zero, only x = -3 is on your choices list.

Answer:  The correct option is

(B) x = - 3.

Step-by-step explanation:  We are given to select the correct zero of the following polynomial function :

[tex]f(x)=(x+3)(x-7)(x+5)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]

The zeroes of the function f(x) are given by

[tex]f(x)=0\\\\\Rightarrow (x+3)(x-7)(x+5)=0\\\\\Rightarrow x+3=0,~~x-7=0,~~x+5=0\\\\\Rightarrow x=-3,7,-5.[/tex]

Therefore, the zeroes of the given function are

x = -3, x = 7 and x = -5.

Thus, the correct option is

(B) x = -3.

Answer:

6.7 cm

Step-by-step explanation:

To make use of the Law of Sines for finding b, you need to know the missing angle B. Since the sum of the angles of a triangle is 180°, you can find angle B as ...

B = 180° -82° -55° = 43°

Now, you put the numbers you know into the formula given and solve for b.

sin(A)/a = sin(B)/b

sin(55°)/(8 cm) = sin(43°)/b

Cross multiplying gives ...

b·sin(55°) = (8 cm)·sin(43°)

and dividing by the coefficient of b gives you ...

b = (8 cm)·sin(43°)/sin(55°) ≈ 6.7 cm

Answer:

6.7 cm

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

[tex] 16a+32b+16c= 4*(4a+8b+4c)[/tex]

Answer:

If 4a+8b+4c=1, then 16a+16c+32b = 4

Step-by-step explanation:

To answer the question, a rule of three can be raised:

4a + 8b + 4c --------------- 1

16a + 16c + 32b --------- X

X = (16a + 16c + 32b) ÷ (4a + 8b + 4c)

This is equivalent to the division of the two polynomials, 16a + 16c + 32b by 4a + 8b + 4c.

Before dividing we organize the first polynomial,

16a + 16c + 32b = 16a + 32b + 16c

Dividing the two polynimials, we have

16a + 32b + 16c   | 4a + 8b + 4c  

-16a - 32b - 16c            4

       = 0 =

The exact quotient is 4, since the residue is 0

Hope this hepls!

Answer: Option 'B' is correct.

Step-by-step explanation:

Since we have given that

P(A) = 0.5

P(B) = 0.5

P(C) = 0.15

P(D) = 0.7

P(E) = 0.15

We need to find the independent events.

When we consider,

P(A∩D) = P(Event A and Event D) = 0.35

and

P(A) × P(D) = 0.7 × 0.5 = 0.35

We get that

P(A∩D)= P(A) × P(D) = 0.35

All other options are not satisfying the conditions of "Independent events".

Hence, Option 'B' is correct.

Answer:

option b would be the correct answer

Step-by-step explanation:

2 * 10^2

Divide the first numbers, which are 6 and 3, to get 2. Then, subtract the powers of the exponents, which are 5 and 3, to get 2.

Answer:

1-C, 2-B, 3-A, 4-E, 5-D

Step-by-step explanation:

It is convenient to let a graphing calculator or spreadsheet compute the standard deviations for you. (Some will compute sample standard deviation; some will compute population standard deviation. It makes no difference to the ordering, as long as the same computation is used for all data sets.)

The correct order of the data sets from smallest to largest standard deviation is: C, B, A, E, D.

https://brainly.com/question/37740206

#SPJ2

Answer:

The solutions of the equations are π/3 , 2π/3 , 4π/3 , 5π/3

Step-by-step explanation:

* Lets revise the four quadrant before solving the equation

# First quadrant the measure of all angles is between 0 and π/2

  the measure of any angle is α  

∴ All the angles are acute  

∴ All the trigonometry functions of α are positive  

# Second quadrant the measure of all angles is between π/2 and π

  the measure of any angle is π - α  

∴ All the angles are obtuse  

∴ The value of sin(π - α) only is positive ⇒ sin(π - α) = sinα  

# Third quadrant the measure of all angles is between π and 3π/2  

  the measure of any angle is π + α  

∴ All the angles are reflex

∴ The value of tan(π + α) only is positive ⇒ tan(π + α) = tanα

# Fourth quadrant the measure of all angles is between 3π/2 and 2π

  the measure of any angle is 2π - α  

∴ All the angles are reflex

∴ The value of cos(2π - α) only is positive ⇒ cos(2π - α) = cosα

* Now lets solve the equation

∵ 4 sin²Ф - 3 = 0 ⇒ the domain is 0 ≤ Ф ≤ 2π

- Add 3 for both sides

∴ 4 sin²Ф = 3 ⇒ divide the both sides by 4

∴ sin²Ф = 3/4 ⇒ take square root for both sides

∴ √(sin²Ф) = √(3/4)

∴ sinФ = √3/2 OR sinФ = -√3/2

- When the value of sinФ is positive

∴ The angle Ф is on the first or second quadrant

- When the value of sinФ is negative

∴ The angle Ф is on the third or fourth quadrant

- We have four values of Ф because 0 ≤ Ф ≤ 2π

- Lets find the measure of the acute angle α

∵ sinα = √3/2

∴ α = sin^-1(√3/2) = π/3

- If Ф is on the first quadrant

∴ Ф = α = π/3

- If Ф is on the second quadrant

∴ Ф = π - α = π - π/3 = 2π/3

- If Ф is on the third quadrant

∴ Ф = π + α = π + π/3 = 4π/3

- If Ф is on the fourth quadrant

∴ Ф = 2π - α = 2π - π/3 = 5π/3

* The solutions of the equations are π/3 , 2π/3 , 4π/3 , 5π/3

Answer:

Option C is correct.

Step-by-step explanation:

The given equation or function is linear if the variables x and y have degree zero or 1.

The given equation is 5x^4+5y =9

here x has degree =4 and y has degree = 1, but for linear equation both x and y variables must have degree zero or 1.

So, Option C is correct.

Answer:

21.1 percent

Step-by-step explanation:

Total balls after -1 red ball=7+5+4+3=19

Prob of purple ball= purple ball/total balls

= 4/19

=0.2105...

percentage:21.1%

The probability of selecting a red ball and then a purple one without replacement from a box containing 8 red, 5 brown, 4 purple, and 3 green balls is approximately 8.4%.

In probability, there are two events of interest here: selecting a red ball and then selecting a purple ball. Since the total number of balls changes after picking the red ball, these are dependent events. The probability of the first event (selecting a red ball) is 8 out of 20 (total balls). Then, with a red ball removed and not replaced, the probability of the second event (selecting a purple ball) is 4 out of 19. To find the overall probability, we multiply the probabilities of these two events.

To convert the probability to a percentage, multiply the result by 100. By doing this, the probability rounds to approximately 8.4%.

https://brainly.com/question/32117953

#SPJ3

Answer:

5/12

Step-by-step explanation:

Since 1/2 is the same distance from zero and one, we can use it to judge whether a fraction is closer to 0 or 1.

Since 5/8 is greater than 4/8 which is 1/2, it is closer to 1.

Since 8/10 is greater than 5/10 which is 1/2, it is closer to 1.

Since 5/12 is less than 6/12 which is 1/2, it is closer to 0.

So our answer is C. 5/12

The value close 0 than 1 is 0.41667.

A fraction is a part of a whole number. for example, [tex]\bold{\dfrac{1}{4}}[/tex] represent a quarter of a number. Similarly, when we solve the fraction meaning [tex]\bold{\dfrac{1}{4}}[/tex]  in the decimal form we divide the numerator, therefore, 1 in this case with the denominator as 4 in this case. the value thereafter we get is known as the decimal form of a fraction.

for example,  = 0.25.

Also, to convert a decimal to a fraction we simply divide the number by a multiple of 10. the number will be depending upon the number of numbers are after the decimal.

for example, 0.25 will be written as [tex]\bold{\dfrac{25}{100}}[/tex] while 0.5 will be written as [tex]\bold{\dfrac{5}{10}}[/tex].

Now, solving the question,

Bring every fraction to decimal form,

[tex]\bold{\dfrac{5}{8}= 0.625}[/tex]

[tex]\bold{\dfrac{8}{10} = 0.8}[/tex]

[tex]\bold{\dfrac{5}{12} = 0.41\overline6}[/tex]

[tex]\bold{\dfrac{7}{14} = 0.5}[/tex]

Hence, the value close 0 than 1 is 0.41667.

Learn more about fractions and decimals:

https://brainly.com/question/548650

10/10 it simplifies to 1

Answer: 10/10

Step-by-step explanation:

10 divided by 10 is 1.

Answer:

The result is the well-known quadratic formula: x = (-b±√(b²-4ac))/(2a)

Step-by-step explanation:

Start with the standard form quadratic equation:

ax² +bx +c = 0

1. Divide by a

x² +(b/a)x +(c/a) = 0

2. Subtract the constant

x² +(b/a)x = -(c/a)

3. Complete the square

x² +(b/a)x + (b/(2a))² = (b/(2a))²-(c/a)

(x +b/(2a))² = (b²-4ac)/(2a)²

4. Take the square root

x +b/(2a) = ±√(b²-4ac)/(2a)

5. Subtract the constant on the left to get x by itself

x = (-b±√(b²-4ac))/(2a)

Final answer:

The quadratic formula, which provides the solution to the standard quadratic equation ax² + bx + c = 0, is derived through a series of algebraic manipulations, including dividing by a, completing the square, taking the square root, and solving for x.

Explanation:

Derivation of the Quadratic Formula

The objective is to derive the quadratic formula from the standard quadratic equation (ax² + bx + c = 0). Following the given steps:

Try this option, the answer is marked with red colour.

Answer:

Step-by-step explanation:

1. The problem statement tells you the function applies for year values (x) 2009 and later. The domain is real numbers greater than or equal to 2009.

__

2. We can use the distributive property to eliminate parentheses:

  3.2(x -2009) +206 = 3.2x -6428.8 +206

  = 3.2x -6222.8

__

3. Put 2025 in the equation and do the arithmetic

  g(2025) = 3.2·2025 -6222.8 = 257.2 . . . . mm

__

4. Put this value of level rise in the equation and solve for x.

  g(x) = 3.2x -6222.8

  500 = 3.2x -6222.8 . . put 500 mm where g(x) is in the equation

  6722.8 = 3.2x . . . . . . . add 6222.8

  x = 6722.8/3.2 = 2100.875

The water rise will be equal to about half a meter late in the year 2100.

Subtract the smaller angle from the larger angle and divide by 2.

66 -14 = 52

52/2 = 26

x = 26

Answer:

62 degrees

Step-by-step explanation:

degrees in a triangle: 180

this triangle is isosceles, so remaining 2 angles must be congruent

2x+56=180

2x=124

x=62