Mathematics High School

Given f(x) = 2 sin x, find the exact value of f (7pi/6) in simplest form with a rational denominator.​

Answers

Answer 1

Answer:

           [tex]\bold{f(\frac{7\pi}6)=-1}[/tex]

Step-by-step explanation:

[tex]f(\frac{7\pi}6)=2\sin(\frac{7\pi}6)=2\sin(\frac{7\pi}6)=2\sin(\pi+\frac{\pi}6)=-2\sin(\frac{\pi}6)=-2\cdot\frac12=-1[/tex]

Related Questions

You earned a 90% and an 85% on your first two homework assignments. What score do you need to earn on the third assignment to have an average of 83%?​

Answers

90+85+x/3=83
175+x = 249
X=74

(4) + (14 – 4i) =
Express your answer in the form (a + bi).

Answers

Answer:

I would recommend using photomath and math away for stuff like this :D

Step-by-step explanation:

use these apps save you lot of time

Cierra spent $3.48 on a dozen donuts. Find the
unit rate. (The cost for ONE donut!)

Answers

Answer:

0.29

Step-by-step explanation:

One dozen = 12

12 donuts for 3.48

3.48/12 = 0.29 per donut

HELP PLEASE !!!!!!!!!

Answers

Answer:

300 seconds

Step-by-step explanation:

Given,

Speed of Jenna = 2m/s

Distance she covered = 600 m

Therefore, Time taken by her

[tex] = \frac{distance}{speed} [/tex]

[tex] = \frac{600}{2} [/tex]

= 300 seconds (Ans)

76 balones se repartieron en 3 grupos el segundo recibió 3 vece mas que el primero y el tercero recibió 4 menos que el primero ¿Cuántos balones tiene cada grupo?

Answers

Answer:

1º REPARTO= X

2º REPARTO= 3X

3º REPARTO= X-4

POR LO TANTO AL SUMAR LOS TRES REPARTOS NOS SALDRAN EL NUMERO DE BALONES

 

X+3X+X-4=76

5X-4=76

5X=76+4

5X=80

X=16

 

AHORA REEMPLAZAMOS EN NUESTROS DATOS:

1º REPARTO= X     X=16

2º REPARTO= 3X    X=48

3º REPARTO= X-4    X= 12

Please help Divide. 9u2− 12u/3u

Answers

it has to be at lest 9u2-4?

Pls help me, this is past due and every day it’s pasted due I get points deducted:( (I have an F in math)

Answers

Answer:

Part A: 3 3/4 Part B: 5 1/4

Step-by-step explanation:

Part A: 3/4x5=3 3/4

Part B: 3 3/4 +1 2/4=5 1/4

If these two shapes are similar, what is the measure of the missing length b?

Answers

Answer:

B = 7mm

Step-by-step explanation:

This is probably an enlargement problem.

To solve this:

the blue triangle has all of it's measurements you need. Let's start with that.

6/36 =

We know that one side, the bottom side of the green triangle is 42mm.

6/36 = b/42

We could simplify 6/36 into 1/6

1/6 = b/42

AHA! the denominators are easy! 6 times 7 is equal to 42, so 1 times 7 should equal b!

1/6 = 7/42

Check:

6/36 = b/42

36b = 6*42

36b = 252

   b = 252/36

   b = 7

So yes! B is 7 mm. Pls mark me brainliest, as I never have a single brainliest.

Daniel goes to an amusement park. He spent $31.75 on the admission fee and $9.25 on parking. He also spent $5.50 on snacks at the park.

If a ticket for a ride costs $5.50, what were the maximum number of rides he could take if he had $79.50 in his pocket?

Answers

Answer:

783 espero ter ajudado Bon estudos

me need help on math

Answers

thank you for the free points!!!

Un jugador de baloncesto tiene una altura de 6 pies y 10 pulgadas. Cuál es su altura en centímetros?

Answers

208.28 cm

espero haberte ayudado(:

PLEASE HELP I WILL MARK BRAINLEST 20 POINTS
what would be x in this ordered pair (3 -8)

Answers

Answer:

3

Step-by-step explanation:

X goes first

Answer:

X is the 3

Step-by-step explanation:

Ordered pairs always go (x,y) X will always be the number on the left.

nicole will rent a car for the weekend. she can choose one of two plans the first plan has an initial fee of $53 and cost an additional $0.08 per mile driven. the second plan has an initial fee of $48 and costs an additional $0.10 per mile driven.​

Answers

?

Step-by-step explanation:

what's the question??

will give brainliest if you answer at least 1

Answers

Solution for D: 60x^2-5x+40. ^ means that the 2 is an exponent

A cube has side lengths of 4 in.
What is the volume of the cube?
Enter your answer in the box.
in3

Answers

Answer:

64in3

Step-by-step explanation:

V= 64in3

Answer:

V = 64 in³

I hope this answer be right !

Luh Kel - Wrong (Official Music Video) is song appropriate to listen to after a girl cheats on you

Answers

Answer:

Yes it is

Step-by-step explanation:

Hits really hard

Answer:

Yea

Step-by-step explanation:

are you suppose to divided 5t

Answers

Answer:

Yes.

Step-by-step explanation:

Choose the expression that is equivalent to the expression
n/4 n/4 n/4 n/4. A. N. B. 1/4n. C. 4n. D. 0

Answers

Answer:

A. n

Step-by-step explanation:

n/4 + n/4 + n/4 + n/4 = 4n/4 = n

On solving the expression, n/4 + n/4 + n/4 + n/4 , we get n.

What is a expression? What is a mathematical equation? What is equation modelling?

A mathematical expression is made up of terms (constants and variables) separated by mathematical operators. A mathematical equation is used to equate two expressions.  Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

We have the following expression -

n/4 + n/4 + n/4 + n/4

We can write -

n/4 + n/4 + n/4 + n/4

n/4(1 + 1 + 1 + 1)

4 x n/4

n

Therefore, on solving the expression, n/4 + n/4 + n/4 + n/4 , we get n.

To solve more questions on Equations, Equation Modelling and Expressions visit the link below -

brainly.com/question/14441381

#SPJ2

Does (2,0) make the equation y = x true?

Answers

Answer:

No

Step-by-step explanation:

If you plug 0 into y and 2 into x 0 does not equal 2.

No it does not make it true

Name the vertex of ∠2.

Answers

the vertex should be 2 if the dots are labeled with numbers

what is figure formed by two rays that originate from the same point?
A. angle
B. Parallel line
C. Perpendicular lines
D. line segment ​

Answers

B is the answer
Parallel lines it the answer

Is it true or false?

Answers

Answer:

True

Step-by-step explanation:

Circumference is diameter x [tex]\pi[/tex]

When you divide [tex]\pi[/tex], you get diameter

An angle measures 2° more than the measure of its supplementary angle. What is the measure of each angle?

Answers

Answer:

182

Step-by-step explanation:

is what that is plus 2

what is (3z+1) + (5+7z)

Answers

the answer is:

10z+6

hope this helps :)

Please help me outttttttttt

Answers

Answer:

Angle F ~ Angle T. FG ~ ST. FE ~ TR.

Step-by-step explanation:

Answer:

<f=<t FG=TS FE=TR

Step-by-step explanation:

hope this helps

Someone please help me quick I’m timed

Answers

It’s c because the x is exterior angles

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 x? 135° 95°

Answers

Answer:

50

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

180-135=45

45+95=140

180-140=40

Evaluate b/a - 1.2 when a=4 and b=12

Answers

Answer: 46.8

Step-by-step explanation:

Please help will mark brainiest

Answers

Answer:

DFE AND FED

Step-by-step explanation:

Answer:
FED and DFE
Reason:

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