The table shows the derivation of tan(2x). Select the correct reason for each step.
Reason 1 is:
Reason 2 is:
Reason 3 is:

Answers

Answer 1

Answer:

Reason 1 is: Addition

Reason 2 is: Tangent sum identity

Reason 3 is: Simplify  

Step-by-step explanation:

I just did it on edge 2020

Answer 2

Answer:

Reason 1 is: Addition

Reason 2 is: Tangent sum identity

Reason 3 is: Simplify  

Step-by-step explanation:


Related Questions

A=2nr+nrl
...........

Answers

Answer:

A=ynr which XW RT XW informing

f the line with equation y=−2x+7 is rotated 90° clockwise about the origin, what are the coordinates of the image of its y-intercept?

A. (2,0)
B. (7,0)
C. (0,−7)
D. (−7,0)

Answers

Answer:

B

Step-by-step explanation:

I looked it up

The line with equation y=−2x+7 is rotated 90° clockwise about the origin, the coordinates of the image of its y-intercept is D  (−7,0).

What is y-intercept of a function?

The intersection of the graph of the function with the y-axis gives y-intercept of that function.

The y-intercept is the value of y on the y-axis at which the considered function intersects it.

Assume that we've got: y = f(x)

At y-axis, we've got x = 0, so putting it will give us the y-intercept.

Thus, y-intercept of y = f(x) is y = f(0)

To find the y-intercept of the line y=-2x+7. When x=0 we have that y=-2·0+7, y=7,

then point (0,7) is the y-intercept.

When we rotate this line 90° clockwise about the origin, then point (0,7) will be placed on the x-axis in positive x-direction.

Rotation preserves the distances, then the coordinates of the image are (7,0).

The correct choice is D  (−7,0).

Learn more about y-intercept here:

https://brainly.com/question/16540065

#SPJ2

Necesito que me ayuden en todas si cada uno de ustedes me puede decir una por favorrrrrr

Answers

Step-by-step explanation:

the perimeter of rectangle is 24 cm and the sides are in the ratio find the length of the sides

If f(x) = x² + 5, which expression represents f(x + 1)?

A) 2x + 6
B) x² + 6
C) x³ + 6
D) x² + 2x + 1
E) x² + 2x + 6​

Answers

Answer:

i dont know sorry

Step-by-step explanation:

HURRY PLEASE!!! Which generic rectangle would be used to factor x^2+7x+6

Answers

Answer:

Rectangle B

Step-by-step explanation:

Given the expression x^2+7x+6, to get the required rectangle we need to factorize first;

= x^2+7x+6

= x^2+6x+x+6

= x(x+6)  + 1 (x+6)

= (x+1)(x+6)

From line 2 we will see that the terms contains x², 6x, x and 6. The rectangle that contains all this terms is rectangle B. Hence option B is correct.

There are five members in a family and the average mass is 42.5 kg. What is the total mass? Please help me.​

Answers

Answer:

the total mass is 212.5 kg

Step-by-step explanation:

The computation of the total mass is as follows;

Given that

Number of family members = 5

And, the average mass is 42.5 kg

Now based on the above information

The total mass is

= Number of family members × average mass

= 5 × 42.5 kg

= 212.5 kg

Hence, the total mass is 212.5 kg

write a linear function f with the values f(-2)=8 and f(1)=-10​

Answers

Answer:

The linear function f(x) = -6x - 4

Step-by-step explanation:

The equation of the linear function f(x) is y = m x + b, where

y = f(x)m is the slope of the line  represents the functionb is the y-intercept ⇒ value y at x = 0

The rule of the slope is m = [tex]\frac{y2-y1}{x2-x1}[/tex] , where  

(x1, y1) and (x2, y2) are two points on the line

∵ f(x) = y ⇒ is the function of the set of ordered pairs (x, y)  

∴ f(-2) = 8 is the point (-2, 8)  

∴ f(1) = -10 is the point (1, -10)

∴ x1 = -2 and y1 = 8

∴ x2 = 1 and y2 = -10

→ Substitute them in the rule of the slope to find it

∵ m = [tex]\frac{-10-8}{1--2}[/tex] = [tex]\frac{-18}{1+2}[/tex] =  [tex]\frac{-18}{3}[/tex]

m = -6

→ Substitute it in the form of the equation above

∵ y = -6(x) + b  

∴ y = -6x + b

→ To find b substitute x by 1 and y by -10

∵ x = 1, y = -10

∴ -10 = -6(1) + b

∴ -10 = -6 + b

→ Add 6 to both sides

∵ -10 + 6 = -6 + 6 + b

∴ -4 = b

b = -4

→ Substitute it in the equation

∴ y = -6x + -4

∴ y = -6x - 4

∵ y = f(x)

The linear function f(x) = -6x - 4

Robbie made a scale drawing of a neighborhood park. A Soccer field in the park is 14 inches long
in the drawing. The actual field is 98 yards long. What is the scale of the drawing? 1 inch = _ yards

Answers

Answer:

14 it is not 14

Step-by-step explanation:

Answer:

ITS NOT 14

Step-by-step explanation:

I got it wrong anything besides that

Sarah and three friends enter a story writing contest. They win the contest and receive a cash
prize. Each person on the team received $21.25. How much money did the team win
altogether
Show work please

Answers

Answer:

85

Step-by-step explanation:

21.25 times 4 (Sarah and 3 friends) equals 85

How do I find the percent increase and decrease easily?

Answers

Answer:

division, I mostly use it and I find it easy

Vanessa wants to determine the perimeter around her garden. She makes an small model of her garden and combines all the sides: 3x + (x + 10) + 5x + (2x + 2). She concludes that the total perimeter of her garden is 56.
Solve the following equation to determine the value of x:
3x + (x + 10) + 5x + (2x + 2) = 56

Answers

Answer:

4

Step-by-step explanation:

since it's all addition, we can remove the parentheses

[tex]3x + x + 10 + 5x + 2x + 2 = 56[/tex]

Now we combine like terms

[tex]3x+x+5x+2x+10+2=56[/tex]

[tex]11x+12=56[/tex]

We subtract both sides by 12 to get,

[tex]11x=44[/tex]

now we divide both sides by 11

[tex]x=\frac{44}{11}[/tex]

[tex]x=4[/tex]

Kiersten runs a website that helps people learn programming. Every month, Kiersten receives a subscription fee of \$10$10dollar sign, 10 from each of the subscribers to her website. Last month, the website had 100100100 subscribers. This month, 303030 new members joined the website, and 101010 members cancelled their subscription.
How much money will Kiersten’s online business earn this month?
\$

Answers

Answer:

$1200

Step-by-step explanation:

Given that:

Monthly subscription fee = $10

Last month's subscribers = 100

THIS MONTH:

New subscribers = 30

canceled subscriptions = 10

Hence,

Total number of subscribers this month :

(Last month subscription + new subscriptions - canceled subscriptions)

(100 + 30 - 10) = 120 subscriptions this month

Hence, amount earned this month will be :

(Total subscriptions this month * monthly subscription fee)

120 * $10 = $1200

What is the solution to the system of equations graphed below?
O(-5, 1)
O (1,-5)
O (3, -4)
O(4,3)

Answers

C

Step-by-step explanation:

Graphs are simple I would know trust me man

1 1/3 TIMES 2 3/4 =
ANSWER ASAPPPP
EXPLAIN STEP BY STEP

Answers

Answer:

1/2

Step-by-step explanation:

Calculator :)

Tim walks at a pace of 80 meters per minute. His school is 4 km away. If school begins at 8:00, what time does Tim need to leave his house to arrive on time?

Answers

Answer:

7:10

Step-by-step explanation:

did the math

Answer:

7:10-7:15

Step-by-step explanation:

tim walks 80 meters per minute and 4kg is 4000.00 meter so now we know that we divided 4000.00 and 80 we get 50 now we take the time his school start subtract 50 minutes so 8:00 ( the time he supposed to be at school) subract 50 minutes that 7:10. Hoped that helped :)

eight hot dogs at the baseball park cost $28. how much does one hot dog cost? (let h = price of hot dog)
i need the equation please!!!​

Answers

Answer:

3.5

Step-by-step explanation:

Answer:

h=$3.50

28/8

Step-by-step explanation:

which ordered pair is a solution for y=x+10

Answers

Answer:

Step-by-step explanation:

Do you have the selection of answers?

Spanish
La Sra. Claus teje
guantes para
los elfos. Ella teje 32
horas al

semana y completa
112 pares
de mitones. A ese
ritmo, ¿cómo
¿Cuántos guantes
individuales tiene
ella?
teier por hora?

Answers

Answer:

la respuesta es 28 porque 32 dividido por 112 es 28

Convert 5,928 milliliters into liters.

Answers

Answer:

5.928 liters

Step-by-step explanation:

about 6 liters

Answer:

5.928

Step-by-step explanation:

1,000 Milliliters = 1 Liter

5,928/1,000 = 5.928

5.928 Liters

Write y−4=1/2(x−3) in slope-intercept form.

Answers

Answer:

y = 1/2x + 2 1/2

Step-by-step explanation:

y - 4 = 1/2 (x - 3)

y - 4 = 1/2x - 3/2

y = 1/2x - 3/2 + 4

y = 1/2x + 2 1/2

In a certain card game, for every 444 blue cards, there are 333 yellow cards. There are a total of 848484 blue and yellow cards in the game. How many blue cards are in the game?

Answers

Answer: There are 48 blue cards in the game.

Step-by-step explanation:

Given: In a certain card game, for every 4 blue cards, there are 3 yellow cards.

Total cards = 4+3 = 7

There are a total of 84 blue and yellow cards in the game.

Number of blue cards = [tex]\dfrac{4}{7}\times 84=4\times12 = 48[/tex]

Hence, there are 48 blue cards in the game.

Answer:

48

Step-by-step explanation:

BE YOU YOU IS THE BEAST YOU

( multiple choice)What is the percent error in this scenario to the nearest tenth of a percent? The actual temperature was 65 °, but Tom read 69° on his thermometer.
A: 6.2%
B: 12%
C: 93.8%
D: 300%​

Answers

Answer:

I got c

Step-by-step explanation:

sorry if im wrong!

Answer:

I got C or B

Step-by-step explanation:

Not sure, Im not great at this stuff

The students in a club are selling flowerpots to raise money. Each flowerpot sells for $21. Part A Write an expression that represents the total amount of money, in dollars, the students raise from selling x flowerpots. Enter the expression in the box provided. Enter only your expression.

Answers

Answer: y = 21x

Step-by-step explanation:

y in this expression represents the total amount of money, in dollars, the students raise from selling x flowerpots.

21 is the price of each flower pot.

x is the number of flower pots sold.

If for instance, they sold 30 flower pots, y(total amount in dollars) would be;

= 21x

= 21 * 30

= $630

Sequences.
64,32,16,8,4,___, ___ what are the next two numbers?
and what is the rule?

Answers

Answer:

2, 1

Step-by-step explanation:

half of 64 is 32

half of 32 is 16

half of 16 is 8

half of 8 is 4

half of 4 is 2

half of 2 is 1

Answer:

2, 1

Step-by-step explanation:

you are dividing it in half or by two

Evaluate: 4x + 8 + x -2 -3x when x= 5 ​

Answers

Step-by-step explanation:

4x + 8 + x - 2 - 3x

= 2x + 6

= 2(5) + 6

= 16.

Answer:

4*5 + 8 + 5 - 2 - 3*5 = 20 + 8 + 5 - 2 - 15 = 28 + 5 - 2 - 15 = 33 - 2 - 15 = 31 - 15 = 16

The
says that the i
of the interior angles in a triangle
180 degrees.
The value of "x" isi
The measure of Angle A is :
degrees.
The measure of Angle B is :
degrees.

Answers

the triangle sum theorem says that the sum of the interior angles in a triangle equal 180 degrees. The value of x is 65. The measure of angle a is 65 degrees .the measure of angle b is 75 degrees.

Determine any data values that are missing from the table, assuming that the data represent a linear function. (graph in picture)

Answers

Answer:

4

Step-by-step explanation:

x + 1 = y

3 + 1 = 4

answer needs to be 20 character long so this is filler

Im an idiot can someone please help?

Answers

Step-by-step explanation:

The equation for the relationship is t = 3.5c.

Answer:

your not st.upid you just need to try your best and i promise your answers will be with in

Step-by-step explanation:

Write an equation in slope intercept form for the line that passes through (-3,-1) and
is parallel to the line that passes through (3,3) and (0,6)

Answers

Step-by-step explanation:

The equation is y = -x - 4.

Helpp please i need this answer as soon as possible

Answers

Answer:

Expression A and C

Step-by-step explanation:

Answer:

the expresión Is A AND B

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