An angle of measure [tex]\frac{4\pi }{3}[/tex] intersects the unit circle at point ([tex]-1/2,- \frac{\sqrt{3} }{2}[/tex]). What is the exact value of tan([tex]\frac{4\pi }{3}[/tex])?
a. -1/2
b. [tex]\sqrt{3[/tex]
c. [tex]\frac{\sqrt{3} }{3}[/tex]
d. [tex]-\frac{\sqrt{3} }{2}[/tex]

Answers

Answer 1

Answer:

  b.  √3

Step-by-step explanation:

Given a point on the unit circle that represents the position of the terminal ray of an angle, the tangent of that angle is the ratio of the y-coordinate to the x-coordinate.

  tan(4π/3) = y/x = (-√3/2)/(-1/2) = √3/1

  tan(4π/3) = √3

_____

Additional comment

A calculator can confirm this for you.

An Angle Of Measure [tex]\frac{4\pi }{3}[/tex] Intersects The Unit Circle At Point ([tex]-1/2,- \frac{\sqrt{3}

Related Questions

Determine whether the following sequence is geometric. If so, find the common ratio,
1.-3.9. - 27,...

Answers

Answer:

Yes, the sequence is geometric

common ratio (r) = -3

Step-by-step explanation:

Given:

[tex]a_1=1[/tex][tex]a_2=-3[/tex][tex]a_3=9[/tex][tex]a_4=-27[/tex]

If a sequence is geometric, common ratio [tex]r[/tex]:

[tex]r=\dfrac{a_4}{a_3}=\dfrac{a_3}{a_2}=\dfrac{a_2}{a_1}[/tex]

Substituting the given values:

[tex]\implies \dfrac{a_4}{a_3}=\dfrac{-27}{9}=-3[/tex]

[tex]\implies \dfrac{a_3}{a_2}=\dfrac{9}{-3}=-3[/tex]

[tex]\implies \dfrac{a_2}{a_1}=\dfrac{-3}{1}=-3[/tex]

Therefore, as

[tex]\dfrac{a_4}{a_3}=\dfrac{a_3}{a_2}=\dfrac{a_2}{a_1}=-3[/tex]

the sequence is geometric with common ratio of -3

Which expression is not equivalent to 2² + 10+12?

Answers

Option 3 is not equivalent!

(Hope I could help!)

Write the y-intercept of the graph of 8x − 4y = 2?

Answers

Answer:

b= -1/2

Step-by-step explanation:

-2/4 is simplified to -1/2 as the y-intercept

y= -4x - 1/2

Angle 1 and Angle _____________ are supplementary angles.

Answers

Answer: number 2

Step-by-step explanation: so a supplementary Angle adds up to a 180 angle so it would be number 2 I think.

In a circle, a 225° sector has area 250pi in^2. What is the radius of the circle?

Answers

Answer:

r = 200

Step-by-step explanation:

[tex]Area of sector = (\frac{225}{360})[/tex]×πr² = [tex](\frac{5}{8})[/tex] ×πr²

[tex](\frac{5}{8})[/tex] ×πr² = 250π

[tex](\frac{5}{8})[/tex] ×r²   = 250

       r²   = [tex](\frac{8}{5})[/tex] × 250

       r²   = 400

       r    = 200 (r is a length so, it's positive)

Mia had 5000 In the bank. She keeps the money in the bank for 4 years at 5% interest. How much interest did she earn?

Answers

Simple interest formula:
Interest = P*R*N

P = principle amount
R = interest rate (in decimal)
N = number of time periods (in years)

Interest = 5000*0.05*4 = $1000

Select the correct answer.

Tracy wants to make a cylindrical model. The height of the cylindrical model, H(V), in inches, is modeled by this

equation, where Vis the volume of the cylindrical model, in cubic inches.

H(V) = 2. 6937

What is the average rate of change of the model's height when its volume changes from 512 cubic inches to

1,000 cubic inches?

The model's height increases by approximately 21. 52 inches for every 1-cubic-inch increase in its volume.

The model's height increases by approximately 0. 022 inch for every 1-cubic-inch increase in its volume.

The model's height increases by approximately 0. 011 inch for every 1-cubic-inch increase in its volume.

The model's height increases by approximately 26. 9 inches for every 1-cubic-inch increase in its volume.

Answers

The average rate of change of the height function is slope of the height function

The model's height increases by approximately 0.011 inch for every 1-cubic-inch increase in its volume.

How to determine the average rate of change?

The height function is given as:

[tex]H(V) = 2.69\sqrt[3]{V}[/tex]

When V = 512, the function becomes

[tex]H(512) = 2.69\sqrt[3]{512}[/tex]

[tex]H(512) = 21.52[/tex]

Similarly;

When V = 1000, the function becomes

[tex]H(1000) = 2.69\sqrt[3]{1000}[/tex]

[tex]H(1000) = 26.9[/tex]

The average rate of change is then calculated as:

[tex]H' = \frac{H(1000) - H(512)}{1000 - 512}[/tex]

This gives

[tex]H' = \frac{26.9 - 21.52}{1000 - 512}[/tex]

[tex]H' = \frac{5.38}{488}[/tex]

Evaluate the quotient

[tex]H' = 0.01102459016[/tex]

Approximate

[tex]H' = 0.011[/tex]

Hence, the model's height increases by approximately 0.011 inch for every 1-cubic-inch increase in its volume.

Read more about average rate of change at:

https://brainly.com/question/8728504

Answer:

The model’s height increases by approximately 0.011 inch for every 1-cubic-inch increase in its volume.

Step-by-step explanation:

Plato/Edmentum

which features of a figuer JKLM remain the same after any rigid transformation i-ready

Answers

The rigid transformation of figure JKLM would not change the side length and angle measure

The features of the figure JKLM that would remain the same are its side lengths and angles

How to determine the features?

A rigid transformation is any of the following

TranslationRotationReflection

All of the above transformation do not change the side length and the angle measure of the shape they transform

Hence, the features of the figure JKLM that would remain the same are its side lengths and angles

Read more about rigid transformation at:

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The line through the points (6, 3) and (4, –5) is perpendicular to the line through which of the following points?

Answers

Answer:

Step-by-step explanation:

( 6 , 3 )

( 4 , - 5 )

m = [tex]\frac{-5-3}{4-6}[/tex] = 4

The slope of the perpendicular line is opposite reciprocal or [tex]-\frac{1}{4}[/tex] , so, the answer is (a).

Gobe weighs 53.6 kg. he wears shoes which weigh 450 gm and carries a school bag weighing 4.5 kg. if he stands on the scales in his shoes and carrying the school bag. what weight will be recorded?​

Answers

Answer:

58.55Kg

Step-by-step explanation:

450 in Kg is 0.45.

0.45 + 4.5 = 4.95. 4.95 + 53.6 = 58.55.

We want to find the zeros of this polynomial:
p(x) = (x+2) (2x^2 + 3x-9)

Answers

Answer:

x = - 2, x = - 3, x = [tex]\frac{3}{2}[/tex]

Step-by-step explanation:

to find the zeros equate p(x) to zero , then

(x + 2)(2x² + 3x - 9) = 0 ← factor the quadratic

(x + 2)(x + 3)(2x - 3) = 0

equate each factor to zero and solve for x

x + 2 = 0 ⇒ x = - 2

x + 3 = 0 ⇒ x = - 3

2x - 3 = 0 ⇒ 2x = 3 ⇒ x = [tex]\frac{3}{2}[/tex]

I need help, I will give brainliest

what is the value of x, round to the nearest 10th.
use sin, cos, and tan

Answers

Value of X:
10cm = Adjacent 8cm = opposite
Tan -1(8/10) = 38.7

Value of Y:
10cm = opposite 8cm = adjacent

Tan-1(10/8) = 51.3

Lethna buys some boxes of pens and some packets of pencils.
There are 40 pens in each box. There are 12 pencils in each packet.
Lethna gives one pen and one pencil to each student in Year 7 of her school.
When she has done this she has no pens left and no pencils left.
Work out how many boxes of pens and how many packets of pencils Lethna could
have bought

Answers

Answer:

pen: 3 boxes [pencils : 10 packets

Step-by-step explanation:

40 and 12     4|40/10   12/3  4x3x10=120  

pen 120 divided by 40 = 3 boxes

pencils 120 divided by 12 = 10 packets

Does anyone know this? I'm stuck on it.

Answers

Answer:

For the first triangle:

Sides xz and xy are of equal length

Angles z and y are of equal measure

For the second triangle:

Sides pr and qr are of equal length

Angles p and q are of equal measure

Step-by-step explanation:

Those tiny line segments intersecting the sides indicate that those sides are equal.

Hope that helps!

Find the area of the figure.

Answers

Answer: 300 ft^2

Step-by-step explanation:

First, find the area of the rectangle on the bottom:

Area of a rectangle = length * width = 18 * 12 = 216

Now, find the area of the trapezoid:

Area of a trapezoid = (base 1 + base 2) / 2 * height → (10 + 18) / 2 * 6 = 84

Add these together: 216 + 84 = 300 ft^2 :)

Pls help me!!! I need to find what b is??

Answers

Answer:

[tex]\frac{10 \sqrt{3} }{3} = b[/tex]

Step-by-step explanation:

Hi there!

We are given a right triangle (notice the right angle), one angle with a measure of 30° and another with 60°

We are also given that one of the legs (one of the sides that makes up the right angle) is 5

We want to find what b is

This triangle is a special right triangle, a 30-60-90 triangle

In a 30-60-90 triangle, if the hypotenuse (the side opposite from the right angle) is b, the leg that is opposite from the 30° angle is [tex]\frac{b}{2}[/tex], while the leg that is opposite from the angle that is 60° is [tex]\frac{b\sqrt{3} }{2}[/tex]

In this case, we're given that the side opposite from the 60 degree angle is 5, meaning that 5 is equal to [tex]\frac{b\sqrt{3} }{2}[/tex]  

So we can set 5 equal to [tex]\frac{b\sqrt{3} }{2}[/tex], to solve for b:

5=[tex]\frac{a\sqrt{3} }{2}[/tex]

Multiply both sides by 2

5*2=b√3

10=b√3

Now divide both sides by √3

[tex]\frac{10}{\sqrt{3} } =b[/tex]

rationalize the denominator

[tex]\frac{10 * \sqrt{3} }{\sqrt{3} *\sqrt{3} }[/tex] = b

[tex]\frac{10 \sqrt{3} }{\sqrt{9}}[/tex]= b

[tex]\frac{10 \sqrt{3} }{3} = b[/tex]

The answer can be left as that.

Hope this helps!

n the past you paid $800 per month to rent your apartment. You now pay $900 per month for your rent. What is the percent increase in your rent?

Answers

Answer:

12.5%

Step-by-step explanation:

900 - 800 = 100

Gotta pay $100 more

100 / 800 = 0.125

A sandbox has a volume of 330 cubic feet of sand. If the sandbox is 3 feet tall, and 10 feet wide, what is the length of the sand box?

Answers

Answer:

We are given that the total volume of the sandbox is 330 cubic feet.
We are given the side measurements of 3 feet tall and 10 feet wide.
3 x 10 = 30 sq2

V(volume)= 330 ft3

330 ft3 divided by 30 sq2 = 11ft

In conclusion, the length of the box would be:
= 11 ft



Step-by-step explanation:

Have a great rest of your day
#TheWizzer

In which quadrant does θ lie given that sinθ < 0 and cosθ < 0? Thank You!
Quadrant I

Quadrant II

Quadrant III

Quadrant IV

Answers

Answer:

Quadrant III yw :3

Step-by-step explanation:

What is the value of y?
у
60°
80°

Answers

Answer: 40

Step-by-step explanation:

The angles form a straight angle, so y = 180 - 80 - 60 = 40.

4.5
3
5
х
Find the length of x

Answers

4.5
3
5
х
Find the length of x= 3

Hello! How to do 10 part (c)?

Answers

hey are you guys talking about compressions, left and right, and stretches in math

What is the value of sin180?

Answers

Answer:

sin180° = 0

Step-by-step explanation:

using your calculator or graph to find

sin180° = 0

Answer:

0

Step-by-step explanation:

The exact value of sin 180 is zero. Sine is one of the primary trigonometric functions which helps in determining the angle or sides of a right-angled triangle. It is also called trigonometric ratio.

Omar owns a small business selling ice-cream. He knows that in the last week 32
customers paid cash, 2 customers used a debit card, and 26 customers used a credit
card.
a
a
If next week, he is expecting 1500 customers, about how many would you expect to
pay with a debit card? Round your answer to the nearest whole number.
a

Answers

The number of customers who will pay by debit card will be 50.

What are fractions?

The fraction is defined as the division of the whole part into an equal number of parts.

Last week there were

32 + 2 + 26 = 60 customers.

That means that the fraction of the customers, who paid by debit card, was

2/60  =   1/30

In situations like that, when we use historical data and try to predict future behaviour, we use that past experience and extrapolate to a predicted result.

we simply say that we expect the same fraction, 1/30 if customers use credit cards.

for the absolute number of predicted debit  card customers we multiply the predicted number of customers by the expected fraction

1500  × 1 / 30 = 1500  /  30  = 50

Therefore the number of customers who will pay by debit card will be 50.

To know more about fractions follow

https://brainly.com/question/78672

#SPJ2

Heather has a bag containing 4 marbles: 1 red, 1 blue, and 2 green. she draws 1 marble out of the bag, replaces it, and then draws another marble. what is p(red then blue then green)?

Answers

Multiply the probability of each by each other:

Probability of red = 1/4

Probability of blue = 1/4

Probability of green = 2/4 = 1/2


probability of red then blue then green = 1/4 x 1/4 x 1/2 = 1/32


answer: 1/32

Find the 78th term of the arithmetic sequence -4, -2, 0, ...−4,−2,0,...

Answers

Answer:

0

Step-by-step explanation:

-4, -2, 0

the 3rd number is always a 0 so if you do the sequence 78 times the 78th term will be a 0

calculate the value of the marked angle​

Answers

watch yt bro there’s all the answer
Where’s the picture of the problem


You use 4 gallons of water on 30 plants in your garden. At that rate, how much water
will it take to water 45 plants?


Answers

Answer:

6 gallons

Step-by-step explanation:

30-----------4

45------------x

30x = 45x4

30x=180

x=6

                        A shortcut:

45 is ( 30+ half of 30)

( 4 + half of 4) = 4+2 =6

Answer:

6 gallons

Step-by-step explanation:

[tex]Assuming\ that\ it\ will\ take\ x\ gallons\ waters[/tex]

[tex]to\ water\ 45\ plants.[/tex]

[tex]4:30=x:45[/tex]

  [tex]30x=4\times 45[/tex]

     [tex]30x=18[/tex]°

         [tex]x=180\div 3\\ x=6[/tex]

[tex]\left\{If\right.\ a:b=c:d,\ then\ ad=\left.\ bc\right\}[/tex]

I hope this helps you

:)

jimmy has 27 apples and there are 9 houses. he feeds the same number of apples to each horses. how many apples dose jimmy feed to each horse?

Answers

-------------------------------------------------------------------------------------------------------------

Answer:

The answer is, Jimmy, fed the horses 3 apples each.

27 apples divided into the 9 horses

27 ÷ 9 = 3

If you had 27 seven apples and you individually gave one apple to each of the 9 horses each horse would end up having 3.
-------------------------------------------------------------------------------------------------------------

(4, 6) (-3, -2) Find the slope

Answers

Answer:

The value of the slope would be:
8/7

Step-by-step explanation:

Have a great rest of your day
#TheWizzer

Answer:

[tex] slope = \dfrac{8}{7} [/tex]

Step-by-step explanation:

(4, 6) and (-3, -2)

[tex] slope = \dfrac{y_2 - y_1}{x_2 - x_1} [/tex]

[tex] slope = \dfrac{-2 - 6}{-3 - 4} [/tex]

[tex] slope = \dfrac{-8}{-7} [/tex]

[tex] slope = \dfrac{8}{7} [/tex]

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