or Precalculus
Unit: Get ready for trigonometry
x
Unit test
f is a trigonometric function of the form f(x) = a cos(bx + c) + d.
Below is the graph of f(x). The function has a maximum point at (pi, 9) and a minimum point at
(3pi/4, 1)
Find a formula for f(x). Give an exact expression.

Answers

Answer 1

Answer:

4cos(4x-4pi)+5

Step-by-step explanation:

It was from khan


Related Questions

I got this problem solved so I no longer need help

Answers

Answer:

then whats the point

Step-by-step explanation:

Danny Whitman, un analista de valores de Your Bottom Dollar, Inc. Siempre ha considerado que es más probable que los bonos convertibles se sobrevaloren más que los bonos de ingresos. De 312 bonos convertibles del año anterior, Danny encontró que 202 estaban sobrevalorados,
mientras que 102 de los 205 bonos de ingreso estaban sobrevalorados. ¿Estos datos confirman la posición de Danny? Sea =., y pruebe la hipótesis

Answers

Existe un mayor porcentaje de bonos convertibles sobrevalorados comparado con el porcentaje de bonos de ingresos sobrevalorados, con lo cual la afirmación de Danny es correcta.

Dado que Danny Whitman, un analista de valores de Your Bottom Dollar, Inc. siempre ha considerado que es más probable que los bonos convertibles se sobrevaloren más que los bonos de ingresos, y de 312 bonos convertibles del año anterior, Danny encontró que 202 estaban sobrevalorados, mientras que 102 de los 205 bonos de ingreso estaban sobrevalorados, para determinar si estos datos confirman la posición de Danny se debe realizar el siguiente cálculo:

202/312 = 0.6474102/205 = 0.4975

Por lo tanto, existe un mayor porcentaje de bonos convertibles sobrevalorados comparado con el porcentaje de bonos de ingresos sobrevalorados, con lo cual la afirmación de Danny es correcta.

Aprende más en https://brainly.com/question/19296932

Please help me please help mee

Answers

Answer:

1.-profit

2.-$300

3.-25%

Step-by-step explanation:

1.- 1500-1200=300+

2.-(1)

3.-1200/100= 12

300/12= 25

I’ve attached my work, hope it helps!

At what values of x, does f(x) = 0?

A. 2

B. 8

C. -4

D. 0

E. -1

F. 4

Answers

Answer:

D : 0

Step-by-step explanation:

f(0) = 0

Can you please solve this please and thank you.

Answers

Answer:

The answer is 3

Step-by-step explanation:

It’s 3 because with dilation your multiplying points to make a shape bigger, so multiply all the numbers by 3 and when you do that you woulda gotten what’s shown in B

The answer is 3. The images side divided by the pre-images side is your scale factor.

12/4 = 3
6/2 = 3

5. Find the triangle similar to AABC at the right.

Answers

Answer:

the answer is b

Step-by-step explanation:

y=mx+b
y=2/5x + b
b=?

Answers

Answer:

y=b+2x/5 in slope- intercept form.

Step-by-step explanation:

Hope this helps :)

A car speeds up from 8.50 m/s to

22.2 m/s in 3.84 s.

The acceleration of the car is:

A. 20.0 m/s2

B. 7.99 m/s2

C. 2.72 m/s2

D. 3.57 m/s2

Answers

First we need to subtract 8.50 from 22.2 we get 13.7. Then once we divide 13.7 by 3.84 we get 3.57. Which should be the answer.

Carlos is digging a pond in his backyard as shown. The area of the
rectangular backyard is 6x + 14x - 12 square yards. The circular pond will
cover an area of 3x? - 4x + 5 square yards. Which expression represents the
area of the gray region, the area of the land remaining in the backyard?


Please answer!!!!

Answers

The expression that represents the area of the gray region, the area of the land remaining in the backyard is 3x²+10x-17 square yards. The correct option is B.

The area of the gray region is the area of the rectangular backyard minus the area of the circular pond.

The area of the rectangular backyard is given as 6x+14x-12 square yards, which simplifies to 20x-12 square yards.

The area of the circular pond is given as 3x²-4x+5 square yards.

So, the area of the gray region is:

(20x-12) - (3x²-4x+5)

= 20x-12 - 3x²+4x-5

= 3x²+10x-17

Therefore, the expression that represents the area of the gray region, the area of the land remaining in the backyard is 3x²+10x-17 square yards.

To know more about an area follow

https://brainly.com/question/30986942

#SPJ1

I need help with this equation

Answers

Answer:

slope = - 2

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 5, 0) and (x₂, y₂ ) = (4, - 18) ← 2 ordered pairs from the table

m = [tex]\frac{-18-0}{4-(-5)}[/tex] = [tex]\frac{-18}{4+5}[/tex] = [tex]\frac{-18}{9}[/tex] = - 2

5у2х 1.5y
If you could do this asap ty

Answers

Answer:

[tex]2.5y^{3}x[/tex]

What is the Slope of the line that passes through points (4, -2) and (3, 1)?

Answers

Answer:

-3

Step-by-step explanation:

slope formula is y2-y1 over x2-x1

if we plug in the values and solve, that gets you -3.

Answer:

-3

Explanation:

1-(-2) divided by 3-4

For any line, if you draw two right triangles using the line as the hypotenuse, do the triangles have to be similar? Why or why not?

Answers

Answer:

Yes

Step-by-step explanation:

If the same line holds the hypotenuse of two right triangles, both of the triangles are similar.

This is because they have same ratio of corresponding sides.

Yes .

Let's check your graph

In ∆ADE and ∆ABC

AD~BC(Parallel to y axis or y axis)AE~EC(Passing through origin and same vertice A)AB~DE(Translation by 2)

Hence both triangles are similar

Does the point (2, 5) satisfy the equation y = x + 3?
yes
no

Answers

Answer:

YES

Step-by-step explanation:

You just need to plug in the numbers

x=2

y=5

5=2+3

5=5

So it is yes.

6(x + 7.50) = 4(2x + 9.50), what is the value of x?

Answers

Answer:

x=3.50

Step-by-step explanation:

6(x+7.50)=4(2x+9.50)

6x+45=8x+38

6x-8x=38-45

-2x = -7

x = -7/-2

x = 3.50

question in doc below .

Answers

The answer is:

y=2x+3

Chad collected 256 M&Ms but lost 5/8 of them on his way to
sehool through a hole in his
bag. When he arrived at school how many M&Ms did Chad have left?

Answers

Chad had 96 M&Ms left when he arrived at school.

Chad initially collected 256 M&Ms.

However, he lost 5/8 of them on his way to school through a hole in his bag.

To determine how many M&Ms Chad had left when he arrived at school, we need to calculate the fraction that represents the M&Ms he did not lose.

If Chad lost 5/8 of the M&Ms, it means he kept 1 - 5/8 = 3/8 of them.

To find the number of M&Ms Chad had left, we multiply 3/8 by the total number of M&Ms he initially collected:

(3/8) [tex]\times[/tex] 256 = (3 [tex]\times[/tex] 256) / 8 = 768 / 8 = 96.

Therefore, Chad had 96 M&Ms left when he arrived at school.

In summary, Chad initially collected 256 M&Ms but lost 5/8 of them, leaving him with 3/8 of the total.

Multiplying 3/8 by 256 gives us 96 M&Ms, which is the number of M&Ms Chad had left when he arrived at school.

For similar question on fraction.

https://brainly.com/question/30154928  

#SPJ8

Can some one help me

Answers

Answer:

Step-by-step explanation:

Line A:

Mark two points in line A.

(1,3) & ( 2 , 5)

[tex]Gradient =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\\\=\dfrac{5-3}{2-1}=\dfrac{2}{1}\\\\\\= 2[/tex]

Line B:

(0,5) ; (5,0)

[tex]Gradient = \dfrac{0-5}{5-0}=\dfrac{-5}{5}=-1[/tex]

What is equivalent to 1/3 P +15

Answers

Answer:

1/3(p + 45)

Step-by-step explanation:

1/3 p + 15 is the same as 1/3(p + 45)

-Chetan K

A company makes a profit of $y (in thousand dollars) when it produces x computers, where y is given by the formula = ( − 100)( − 200) for ≥ 0 If 120 computers are produced, the profit will be $3,200,000.
a) Find the value of a.
b) What is the maximum profit the company can make? At this profit, how many
computers should be produced?
(7 marks) c) If the company targets to make at least $4,800,000, what is the range of the
number of computers to be produced?

Answers

lol no

just give up in life

The function is used to model real life situation

The value of a is -2000 150 computers must be produced to maximize the profit of $5,000,000 A range of 140 to 160 computers would give the company at least $4,800,000  

 

(a) The value of a

The function is given as:

[tex]\mathbf{y = a(x - 100)(x - 200) }[/tex]

The profit on 120 computers is 3200000.

So, we have:

[tex]\mathbf{3200000 = a(120 - 100)(120 - 200) }[/tex]

[tex]\mathbf{3200000 = -1600a}[/tex]

Divide both side by -1600

[tex]\mathbf{a = -2000}[/tex]

Hence, the value of (a) is -2000

(b) The maximum profit

The function becomes

[tex]\mathbf{y = -2000(x - 100)(x - 200)}[/tex]

Expand

[tex]\mathbf{y = -2000(x\² - 200x - 100x + 20000)}[/tex]

[tex]\mathbf{y = -2000(x\² - 300x + 20000)}[/tex]

Expand

[tex]\mathbf{y = -2000x\² + 600000x - 40000000}[/tex]

Differentiate

[tex]\mathbf{y' = -4000x + 600000}[/tex]

Set to 0

[tex]\mathbf{-4000x + 600000 = 0}[/tex]

Collect like terms

[tex]\mathbf{4000x = 600000}[/tex]

Divide both sides by 4000

[tex]\mathbf{x = 150}[/tex]

Substitute 150 for x in [tex]\mathbf{y = -2000(x - 100)(x - 200)}[/tex]

[tex]\mathbf{y = -2000(150 - 100)(150 - 200)}[/tex]

[tex]\mathbf{y = 5000000}[/tex]

150 computers must be produced to maximize the profit of $5,000,000  

c) Range when the target is at least $4,800,000

This means that:

[tex]\mathbf{y \ge 4800000}[/tex]

So, we have:

[tex]\mathbf{-2000x\² + 600000x - 40000000 \ge 4800000}[/tex]

Collect like terms

[tex]\mathbf{-2000x\² + 600000x - 40000000 - 4800000 \ge 0}[/tex]

[tex]\mathbf{-2000x\² + 600000x - 44800000 \ge 0}[/tex]

Divide through by -2000

[tex]\mathbf{x\² - 300x +22400 \le 0}[/tex]

Factorize

[tex]\mathbf{(x - 140)(x - 160) \le 0}[/tex]

Express as inequality

[tex]\mathbf{140 \le x \le 160}[/tex]

A range of 140 to 160 computers would give the company at least $4,800,000

Read more at:

brainly.com/question/25471478

Suppose that the function h is defined, for all real numbers, as follows

Answers

h(-3) = 1/4(-3) - 2 = -2.75
h(-1) = -((-1) - 1)^2 + 3 = -1
h(0) = -((0) - 1)^2 + 3 = 2

Given the formula:
[tex]x = \frac{1 + a}{1 - a} [/tex]
Solve for "a" when x=12.​

Answers

[tex]12 = \frac{1+a}{1-a} => 12(1-a)= 1+ a \\=> 12 -12a = 1 + a => 12a+1 = 12-1 \\=> 13a = 11 => a= \frac{11}{13}[/tex]

ok done. Thank to me :>

Math Essay Solve for g. make sure to show your work
(16 divided 4)(3x7)=g

Answers

Answer:

84 = g  

Step-by-step explanation:

(16 ÷ 4)(3 × 7) = g       Divide

   4(3 × 7) = g              Multiply

    4 × 21 = g               Multiply

        84 = g                Simply

Grafica
Y=X^2.
Y=-x^2.
Y=x^2 +2
Y=X^2-2
Y=2x^2

Answers

Answer:

y=x^2 is a parabola when y is x squared

y=-x^2 is the first one but when it is flipped over the x axis

y=x^2+2 is the first one shifted two up

y=x^2-2 is the third one but shifted 4 units down

y=2x^2 is the first one but two times the square of x

Step-by-step explanation:

PLS help im stuck i dont understand how to do the problem

Answers

5/3x+8
5/3 is the slope

A quadratic function has zeros of 2 and 9. Which expression could define the function?
A. x²+18x+11
B. x²+11x+18
C. x²-11x+18
D. x²-18x+11
- Also could you show the work. I am trying to do test corrections and have no idea what I am doing.

Answers

Answer:

I think the answer is C. x²-11x+18

Step-by-step explanation:

I'm sorry I can't explain I'm busy right now

Grade 7 students were surveyed to determine how many hours a day they spent on various activities. The results are represented in the circle graph below. About how much time altogether was spent on homework and eating?

Can Someone Help me please

Answers

Answer:

As no graph is provided you can only solve it.Steps provided below

Graph of 7students so there must be 7 partsMark the point on graph where home work and painting is mentioned.Add both the respective values

Yes you have done it

what equation represents the line that passes through the points (3, -2) and (-1, 10)​

Answers

Answer:

y=-3x-9

Step-by-step explanation:

Let's find the slope of the line

m=-2-10/3--1

m=-12/4=-3

The equation is given as

y-y1=m(x-x1)

y--2=-3(x-3)

y+2=-3x+9-2

y=-3x-7-2

y=-3x-9

Y=-3x-9…,,,,,,,,…………………

Identify one point and the slope from the equation y + 4 = 1/3(x - 1)
A. m = 4 Point = (1/3, 1)
B. m = 1/3 Point = (1,-4)
C. m = 1/3 Point = (1, 4)
D. m = 1/3 Point = (-1, 4)​

Answers

Answer:

B

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b ) a point on the line

y + 4 = [tex]\frac{1}{3}[/tex] (x - 1) ← is in point- slope form

with m = [tex]\frac{1}{3}[/tex] and (a, b ) = (1, - 4 ) → B

any smart people that know math know whats going on

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

What other information do you need in order to prove the triangles congruent using the SAS Postulate?

Answers

Answer:

AC is perpendicular to BD.

Further explanation

We observe that both the ABC triangle and the ADC triangle have the same AC side length. Therefore we know that  is reflexive.

The length of the base of the triangle is the same, i.e., .

In order to prove the triangles congruent using the SAS congruence postulate, we need the other information, namely . Thus we get ∠ACB = ∠ACD = 90°.

Conclusions for the SAS Congruent Postulate from this problem:

∠ACB = ∠ACD

- - - - - - - - - -

The following is not other or additional information along with the reasons.

∠CBA = ∠CDA no, because that is AAS with ∠ACB = ∠ACD and  

∠BAC = ∠DAC no, because that is ASA with  and ∠ACB = ∠ACD.

no, because already marked.

- - - - - - - - - -

Notes

The SAS (Side-Angle-Side) postulate for the congruent triangles: two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle; the included angle properly represents the angle formed by two sides.

The ASA (Angle-Side-Angle) postulate for the congruent triangles: two angles and the included side of one triangle are congruent to two angles and the included side of another triangle; the included side properly represents the side between the vertices of the two angles.  

The SSS (Side-Side-Side) postulate for the congruent triangles: all three sides in one triangle are congruent to the corresponding sides within the other.

The AAS (Angle-Angle-Side) postulate for the congruent triangles: two pairs of corresponding angles and a pair of opposite sides are equal in both triangles.  

Learn more

Which shows two triangles that are congruent by ASA?  brainly.com/question/8876876  

Step-by-step explanation:

Other Questions
which branch of government has the least amount of political power?legislativejudicialexecutiveo Your task is to write a fictional newspaper article assuming that the Declaration of Independence was never written. Assume that the United States does not exist, and that the land now known as the United States is still a British colony. The same issues that the colonists experienced in the late 1700s are still happening today! Your assignment is to choose two of the grievances to include in your article as if they were still occurring. Your article should show the impact that these grievences have on the citizens today. Be creative! Identify the major ionic species present in an aqueous solution of C6H12O6 (glucose).A. 6 C-, 12 H+, 6 OB. 6 C+, 12 H+, 6 O2C. 6 CH2+, 6 O2D. C6+, 12 H+, 6 O2E. no ions are present I always get full but there are only 1-3 bites left on my plate. Why does this happen? PLEASE HELP MEEE1st pic. Referring to the figure, given ray BD bisects ABC,find the value of x.2nd pic. Referring to the figure, given ray BD bisects ABC,find the value of x.Given A and B are supplementary. The measureof B is three times the measure of A. Find mA.Given A and B are supplementary. The measureof B is three times the measure of A. Find mB. que es la huella en la clasificacin de los signos What is the value of C that will make the expression a perfect square trinomial? x210/3x+C 12x-4=10x-10+30 find value of x The Romanesque technique of portraying narrative scenes in the geometric confines of column capitals is called a Can anyone help me if you get it right i'll give 30! Any help ????!?!?!? Please please Ill mark blainlist Which statement best describes how the chapters in How a cat played Robinson Crusoe develop the plot of the story? $200 is shared between two friends Mary and John in the ratio 3 : 2 respectively. What is the result? The narrator the doctor gives the audience brief insights into the viewpoint of the parents. What can you infer about them so far? the process that continually adds new material to the ocean floor at does the point (2, 1.5) represent in this context? Hi again everyone, could you please help me (: Determine whether the ratios 8:7 and 15:14 are equivalent In explaining your choice of an environmental science major in college to your roommate, you would probably emphasize the fact that environmental science is a(n) 10) For the holidays, Judy wants to spray fake snow aroundthe perimeter of her front store window and along bothdiagonals. How many feet of snow will she be spraying?8 feet15 feet