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

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

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:

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:

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

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

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

what is 45 less than six times x​

Answers

Answer:

6x - 45

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:

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:

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:

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.

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

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

help, please!!!its urgent

Answers

Answer:

Step-by-step explanation:

its f because its pretty easy

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

Answers

Answer:

4 - 1 = 3

10 - 6 = 4

Step-by-step explanation:

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

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 :)

Brainlist for correct answer!

Answers

Answer:

answer is c

Step-by-step explanation:

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

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:

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

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

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:

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

Answers

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

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:

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

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

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!

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

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

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