Mathematics High School

Rewrite with only sin x and cos x.

sin 3x - cos x

Answers

Answer 1

Answer:

sin (3 x) - cos (x)=

= sin (2x + x) - cos (x)=

= sin 2x * cos x + cos 2 x * sin x - cos x = ( using additional formulas )

= 2 sin x cos² x + ( cos² x - sin² x ) sin x - cos x =

= 2 sin x cos² x + ( 1 - sin² x - sin² x ) sin x - cos x =

= 2 sin x cos² x + ( 1 - 2 sin² x ) sin x - cos x =

= 2 sin x cos² x + sin x  - 2 sin³ x - cos x

Answer: B )

Step-by-step explanation:

Related Questions

help please i will give brainlest

Answers

Answer:

perimeter of quadrant circle=1/4×pi×radius

""""" =1/4×3.14×10

perimeter of quadrant circle= 7.85cm

e

Answer:

[tex]5\pi[/tex]

Step-by-step explanation:

Circle perimeter: 2[tex]\pi[/tex]r

You get [tex]\frac{1}{4}[/tex] of circle perimeter

So: Circle perimeter = 2*[tex]\pi[/tex]*10=20[tex]\pi[/tex]

and:  [tex]\frac{20\pi }{4}=5\pi[/tex]

0.6y=1.8
Please help!

Answers

Answer:

Y= 3

Step-by-step explanation:

1.8/ 0.6=3

Answer:

y=3

Step-by-step explanation:

divide both sides by 0.6

0.6y/0.6 = 1.8/0.6

which sould equal y=3

Chapter 2 Test
1) Choose the option that lists the values in order from least to greatest:
0.55
3
3
0.52
1
7
1
a) 3,0.52 ,0.55,
b) Ķ, 0.55 ,0.52,
C) 0.52, Ž, 0.55 , }
d) 0.52, 0.55,,
317
2) Choose the option(s) that are equal in value Marko

Answers

Answer:

C

Step-by-step explanation:

The correct answer is option C) 0.52, Z, 0.55 , }

what is (2m+7)+(4d+6)

Answers

Answer:

4d+2m+13

Step-by-step explanation:

What is the area of the polygon given below?

Answers

Answer:

I dont see it

Step-by-step explanation:

Answer:

There needs to be a picture.

Step-by-step explanation:

PLEASE ANSWER FAST!!
Which equation is in standard form?

a) 3x - 4y - 2 = 0

b) y = -2x - 3

c) 3x + 7y = 4

d) y = 2

Answers

Answer:

c

Step-by-step explanation:

The answer of this question is c

Find the term of the following arithmetic sequence. 15,22 , 29 , 36 ,

Answers

Answer:

The sequence can be continued by adding 7 to each number.

Step-by-step explanation:

15 + 7 = 22

22 + 7 = 29

29 + 7 = 36

36 + 7 =...... 43 would be your next number

3 A line passes through point (8. – 7) and has a slope of 4 Write an equation in Ax+By=C form for this line. Use integers for A, B, and C.​

Answers

Your answer should be 4x-y=39

203,245,237,233,90,100,100,277,265,264,265,285,288,291,
291,290,300,224,200,257,290,279,266,288 What is the mean?

Answers

Answer:

243

Step-by-step explanation:

im so happy

2. A swimming pool has the shape of a
rectangular prism. The pool is 12 feet long,
10 feet wide, and 6 feet deep. What is the
volume of the pool?
A 360 ft
B 620 ft
C 720 ft
D 1,440 ft

Answers

Answer:

Volume= lxwxh

12 x 10 x 6= C

720 ft

Step-by-step explanation:

To figure out the volume, you need to use V=width•height•length. So, 10•6•12= 720 ft. The answer is C.

Help me what is it brain lit who gets right

Answers

Answer:

179.76

Step-by-step explanation:

solve square root of x+1 =4

Answers

Answer:

3

Step-by-step explanation:

4 - 1 = 3

can anyone help for good luck

Answers

Answer:

Step-by-step explanation:

What is the measurement, in degrees, of angle 1?

Answers

Answer:

180 - 55 = angle 1

80 - 55 = 25 so 180 - 55 = 125

angle 1 = 125 degrees

whats the y-intercept

Answers

Answer:

2

Step-by-step explanation:

the y-intercept is where the line meets the y-axis

y intercept would be (0,2)

What’s the answer to this??? need to know!?

Answers

Answer:

C/3

Step-by-step explanation:

Answer the photo below thanks
In detail
PLEASE HURRY

Answers

Answer:their is no photo

Step-by-step explanation:

Write a slope intercept equation for the following table can someone help

Answers

Answer:

y=2.5x+3

Step-by-step explanation:

(0,3) shows the y-intercept of +3

Use slope formula to find the slope:

8-5.5/2-1 = 2.5

therefore the M (slope) is 2.5

Answer:

y = 2.5x + 3

Step-by-step explanation:

y2 - y1/x2 - x1 = slope

5.5 - 3 = 2.5

2 - 1 = 1

2.5/1 = 2.5

8 = 2.5(2) +b

8 = 5 + b = 3

Andy solve an equation as shown below. What error did Andy make?

Answers

Answer:

Step-by-step explanation:

Whatever you do to the left you must do to the right, he multiplied 12 but forgot to multiply the -4 on the left and the + 1 on the right by the number 12

What is the equation of the line that is perpendicular to y=-3x+1 that passes through the point (9,0)?
Slope Intercept Form
y=mx + b
Оy=4x-3
Oy=-**3
y=3x+9

Answers

Answer:

Step-by-step explanation:

perp. 1/3

y - 0 = 1/3(x - 9)

y = 1/3x - 3

What is the final price (before sales tax) for a set of golf clubs that cost $800 if they are on sale for 30% off?

A. $730
B. $770
C. $660
D. $560​

Answers

Answer:

D. $560

Step-by-step explanation:

800 x .3 equals 240.

800 minus 240 gives you 560

Mark me as brainliest if this helps!

10. The length of the radius of a bicycle wheel is 14 inches. Which of the following is closest to the circumference of the wheel?
A. 44 in.
B. 615 in.
C. 88 in.
D. 154 in

Answers

Answer:

the answer is "a"

Step-by-step explanation:

Answer:

C. 88

Step-by-step explanation:

To find circumference you use the formula πd.

The diameter is 28, so 3.14x28.

This equals 87.92.

The closest one to 87.92 is 88.

This, the answer is C.88.

Hope this helped!!

Determine whether the ratios are equivalent.

3 : 10 and 9 : 25

Please Help!!

Answers

Answer:

They aren't

Step-by-step explanation:

9/25 / 3= 3/8.3

3/10 x 3 = 9/30

none of those equal to each other

Ailish has $15.75. She wants to buy a video game that costs $19.55.

How much more money does Ailish need to buy the video game?

Answers

Answer:

Ailish needs $3.80 more to buy her video game.

Step-by-step explanation:

You have to subtract the money she already has from the total money that she needs to find the answer. So, for example: 19.55- 15.75= $3.80.

Please like and mark brainliest!

Hope this helps!

what is the distance between points (3,-5) and (-8,3) on the coordinate plane?

Answers

Answer:

1. 8

2. 11

for the first one its 8 and the second one is 11


NEED HELP!

Will be grateful

Answers

Answer:

p = -1/5

Step-by-step explanation:

-5p + -15/5 = -4

-5p -3 = -4

-5p = -4 +3

-5p = -1

p = -1/5

Answer:

p = [tex]\frac{1}{5}[/tex]

Step-by-step explanation:

Given

- 5 (p + [tex]\frac{3}{5}[/tex] ) = - 4 ← distribute parenthesis on left side by - 5

- 5p - 3 = - 4 ( add 3 to both sides )

- 5p = - 1 ( divide both sides by - 5 )

p = [tex]\frac{1}{5}[/tex]

Write the equation of the line in fully simplified slope-intercept form.
ਪੂ
11
NAUa006 5 5
1
-12-11-10-9-8-7-6-5-4-3-2-1,
1 2 3 4 5 6 7 8 9 10 11 12
-3
-4
-5
-6
-7
-8
-10
-12

Answers

Answer:

The slope of this line will be y=-3/4x+3

Step-by-step explanation:

Hope this Helped

Give an example of a dependent event.

Answers

Answer:

Two events are dependent if the outcome of the first event affects the outcome of the second event, so that the probability is changed. Example : Suppose we have 5 blue marbles and 5 red marbles in a bag. We pull out one marble, which may be blue or red.

Step-by-step explanation:

Answer:

The dependent event about math is when the wind come, your plant dependent it's weight to let itself not get fly away.


what is the perimeter of EFG?? NEED HELP ADAP

Answers

Answer:

78 cm

Perimeter = 12 x 3 + 9 x 3 + 15 = 36 + 27 + 15 = 78 cm

Hope that helps!

Answer:

Try 78

Step-by-step explanation:

EF is just AB times three. Assume you use the same scale factor for all side you get GE as 27 and GF as 36.

Jughead now earns $10.50 per hour. This is 175% of what he earned last year. How much did he earn last year?​

Answers

Answer:

10.5/175*100=6

Step-by-step explanation:

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