Mathematics High School

cosine (theta) = StartFraction StartRoot 2 EndRoot Over 2 EndFraction , and StartFraction 3 pi Over 2 EndFraction less-than theta less-than 2 pi, evaluation sine (theta) and tangent (theta)

Cosine (theta) = StartFraction StartRoot 2 EndRoot Over 2 EndFraction , And StartFraction 3 Pi Over 2

Answers

Answer 1

9514 1404 393

Answer:

  sin(θ) = -√2/2

  tan(θ) = -1

Step-by-step explanation:

The reference angle is arccos(√2/2) = 45°. The sine has the same magnitude, so the tangent (ratio of sine to cosine) has a magnitude of 1.

The angle is given as a 4th-quadrant angle. Both the sine and tangent are negative in the 4th quadrant.

  sin(θ) = -√2/2

  tan(θ) = -1

__

In the attachment, the angle of interest is 315° (7π/4). The given unit-circle coordinates are ...

  (x, y) = (cos(θ), sin(θ))

  tan(θ) = y/x

Cosine (theta) = StartFraction StartRoot 2 EndRoot Over 2 EndFraction , And StartFraction 3 Pi Over 2
Answer 2

Answer:

sin(θ) = -√2/2

 tan(θ) = -1

Step-by-step explanation:

Brainliest? plz

Related Questions

Nancy has 1/3 of a cup of strawberries. She wants to share them with her 4 friends. How much will each of her friends get?

Answers

Each friend will get 1/12 cup of strawberries because 1/3 divided by 4 equals 1/12

Write two equivalent expressions for 15(3 + w).
1.
2.

Answers

1. 15/4 (2w+3)^2 - 135/4
2. w(15w+45)

help, please!!!its urgent

Answers

Answer:

Step-by-step explanation:

its f because its pretty easy

Brainlist for correct answer!

Answers

Answer:

answer is c

Step-by-step explanation:

the answer is B.b=5.5mA=70.8mc82.2

FIRST CORRECT ANSWER GETS BRANLIEST !!!!!!!!

Answers

Answer:

4 - 1 = 3

10 - 6 = 4

Step-by-step explanation:

help me with 3 and 4

Answers

3. Answer:

x=3/2+1/2√21 or x=3/2+-1/2√21

Step-by-step explanation:

For this equation: a=1, b=-3, c=-3

1x2+−3x+−3=0

Step 1: Use quadratic formula with a=1, b=-3, c=-3.

x=−b±√b^2−4ac/2a

x=−(−3)±√(−3)^2−4(1)(−3)/2(1)

x=3±√21/2

x=3/2+1/2√21 or x=3/2+−1/2√21

Answer:

3: x= 3.7912874, x= 0.79128784

4: x= 0.62181997, x= -4.28848664

Step-by-step explanation:

It’s all solve for x what number actually makes the equation true.

Plssssss help me. Ty​

Answers

Answer:I believe it is the 2nd and 3rd one because 3 miles per hour and 1.5 miles away doesn’t make sense and the other two work out

Step-by-step explanation:

Samantha invested $880 in an account paying an interest rate of 3.1% compounded
continuously. Assuming no deposits or withdrawals are made, how long would it
take, to the nearest tenth of a year, for the value of the account to reach $1,270?

Answers

Answer: 11.8

Step-by-step explanation:

A car is 160 inches lorrg.
A truck is 7% longer than the car.
How long is the truck?
Explain how you got your answer.

Answers

The truck is 171.2%. if you calculate the percentage of 160 and add them together, you will get 171.2

A school group rented a banquet room for $110. They also paid $15 for each person (p) at the banquet. The total bill was $1,460. Which equation models the total cost for the group to rent the room?
A-15 + 110p = 1,460
B-10 + 15p = 1,460
C-110(p + 15) = 1,460
D-15(p + 110) = 1,460

Answers

Answer:

10+15p =1460

Step-by-step explanation:

Two vertices of a rectangle are (−10, −7) and (−10, 18) .

What is the length of this side of the rectangle?

Answers

Answer:

The length of the side of the rectangle is 11 units.

Answer:

11 units

Step-by-step explanation:

did the unit test in K12

Find the surface area of the figure shown. The surface area of the figure is
5.1 ft
4 ft
2 ft
8.2 ft

Answers

I think it’s the total , 19.3

Can someone explain how to do this? Will mark as brainliest

Answers

Answer: x is the angle of the tricundicular angle of the imperfect triangle. It’s like area but it’s an imperfect triangle, there’s is also 2 different numbers that u should get from this

Step-by-step explanation: pls mark brainliest

Which data set could be represented by the box plot shown below?

Answers

The answer for this is D.

Answer:

b

Step-by-step explanation:

i gussed

Simplify the expression 6w + + 3w.

Answers

Answer:

9w

Step-by-step explanation:

they have the same terms so you can add them together. 6+3=9 and keep the term (w)

therefore 6x+3w=9w

Answer:

9w

add the numbers if he variables are the same

therefore you add 6 and 3 to get 9

Hope this helped!


The graph of f(x) = is stretched vertically by a factor of 2 and then
shifted up 5 units to create the function g(x). What is the rule for g(x)?

Answers

Answer:

g(x)= 2x^2 + 5      should be right

Step-by-step explanation:

SOMEONE HELP ME PLEASE ASAP AND SHOW THE WORK I WILL MAKE YOU BRAINLIEST AND GIVE YOU A GOOD RATE!!!!! SOMEONE HELP ASAPPPPPPPPPPPPPP!!!!!!!!!!!!!

Answers

Answer:

5x+10=30

Step-by-step explanation:

sorry, it does not have any works/steps in forming this equation.

Solving equation(if needed):

5x+10=30

5x=20

x=4

Answer: you can count by fives 5,10 15,20,25,30

Step-by-step explanation:

explain why 1/12 + 1/2= 7/12

Answers

Answer:

1/12 + 1/2 = 1/12 + 6/12 - 1+6/12 = 7/12

Step-by-step explanation:

hope this makes sense

Step-by-step explanation:

1/2 of 12/12 is 6/12.

So, this means: 1/12 + 1/2 = 7/12

                                      is

                          1/12 + 6/12 = 7/12

Find d.


(Please explain why it is the answer you picked, I’m having a hard time understanding, my teacher gives us lessons to teach ourselves but I don’t even know how to start)

Answers

Answer:

i dont know if its right since i havent done trig in ages but

[tex]3 \sqrt{3} [/tex]

Step-by-step explanation:

tan(30)x9?

put the opposite angle inside the () since were doing toa which is tan(sin)=opposite/adj

so if we rearrange the formula to make opposite the subjects its

opposite=tan x adj

this is probably wrong so u might want to check with someone else

Jenny makes bottle cap necklaces for the Bottle Cap Boutique. Each necklace has 6 small bottle caps on it. If she has 2,520 bottle caps, how many necklaces can she make?

Answers

Answer:

420

Step-by-step explanation:

Which table represents a function?
Group of answer choices

Answers

Answer: The answer is C

Step-by-step explanation: If you look at the x’s it is the only one that doesn’t have x’s repeated

The trend line passes through (10,9) and (35,0). Write an equation for the trend line.

Answers

Answer: Solution :  

Step 1 :

Make a scatter plot of Lily’s running data.

Step 2 :

To draw a trend line, use a straight edge to draw a line that has about the same number of points above and below it. Ignore any outliers.

Step 3 :  

Find the slope of the trend line.

The line passes through points (2, 20) and (4.5, 45).

Use the slope formula.  

m  =  (y2 - y1) / (x2 - x1)

Substitute x1, = 2, y1 = 20, x2 = 4,  and y2 = 45.

m  =  (45 - 20) / (4.5 - 2)

m  =  25 / 2.5

m  =  10

Step 4 :  

Find the y-intercept of the trend line.

Slope-intercept form equation of a line :  

y  =  mx + b

Plug y = 20, m = 10 and x = 2.  

20  =  10 · 2 + b

20  =  20 + b

Subtract 20 from both sides.  

0  =  b

Step 5 :  

Use your slope and y-intercept values to write the equation.

Slope-intercept form equation of a line :  

y  =  10x + 0

So, the equation for the trend line is

y  =  10x

Example 2 :

David records the number of chapters and the total number of pages for several books as given below.  

No. of chapters

3

4

5

8

10

11

15

17

19

No. of pages

20

44

50

95

90

130

125

170

160

Step-by-step explanation:

A bag of 12 ounces of popcorn costs $4.80. What is the unit rate? (in others words what is the cost for one ounce) *​

Answers

Answer:

0.4

Step-by-step explanation:

$4.80 divided by 12 = 0.4

Answer:

2.50 per ounce

Step-by-step explanation:

divide 12 by 4.80

what is the value of y?

Answers

The value of Y is h:8.

Answer:

g. 8[tex]\sqrt{2}[/tex]

Step-by-step explanation:

since it's a 45 45 90 triangle, both the legs are the same (8) and the hypotenuse(y) would be 8 rad 2 :)

5 - 3(7 - 2r)
How do I simplify the expression

Answers

5-3(7-2r) rearrange the terms: 5-3(-2r+7)
distribute: 5-3(-2r+7) to 5+6r-21
Subtract the numbers: 5+6r-21 becomes -16+6r
Rearrange the terms: 6r-16

Hope this helped!

If the measure of AngleB is 40°, what measures can AngleA and AngleC be? Select the three correct answers. 20° and 30° 30° and 110° 55° and 85° 60° and 90° 70° and 70°

Answers

Answer:

30° and 110°

55° and 85°

70°and 70°

Step-by-step explanation:

Given that :

Angle B = 40°

Sum of angles in a triangle :

Angle (A + B + C) = 180°

A + 40 + B = 180

A + C = 180 - 40

A + C = 140°

From the Given options ;

The sun of the Angles Given must add up to 140°

Hence,

30° and 110° = 140°

55° and 85° = 140°

70°and 70° = 140

Vhich of the equations below represents a line parallel to the x-axis?
A. y = 3
B. y = X
C. y = 1/x
D. x = 3

Answers

I think it’s B, y=X. Hope it works
The answer is A. y=3

Can someone plz help

Answers

Answer:

it should be 1/4

Step-by-step explanation:

Answer:

1/4 because it depends on how many times you flip it

Which equation does the graph below represent?


A coordinate grid is shown. The x axis values are from negative 5 to positive 5 in increments of 1 for each grid line, and the y axis values are from negative 20 to positive 20 in increments of 4 for each grid line. A line is shown passing through the ordered pairs negative 4, 16 and 0, 0 and 4, negative 16.


y = fraction 1 over 4x


y = 4x


y = fraction negative 1 over 4x


y = −4x

Answers

Answer:

The answer is D!! Trust me I have took this quiz and got it right.

Step-by-step explanation:

Have a good time on your test!

Answer:

The answer is B! trust me

Step-by-step explanation:

what is 45 less than six times x​

Answers

Answer:

6x - 45

Step-by-step explanation:

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