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

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

uh

Step-by-step explanation:

Answer:

wtffffffffffffffffffff

Select the solution(s) to the following equation: (3x−2)(x+5)=0 SELECT ALL THAT APPLY
x=3/2
x=5
x=-5
x=2/3
x=-2/3
x=-3/2

Answers

Answer:

Step-by-step explanation:

Check by direct substitution.  If we begin by checking x = 3/2, we substitute 3/2 for x in (3x - 2)(x + 5), obtaining (9/2 - 2)(3/2 + 5), which is NOT zero.  Therefore x = 3/2 is not a solution.

(3*5−2)(5+5)=0  False.  x = 5 is not a solution.

(3*[-5]−2)([-5+5)=0  True.  x = -5 is a solution

x = 2/3:  (3*2/3 - 2)( ) = 0.  True  x = 2/3 is a solution

x = -2/3:  ( )( ) = -17 1/3;  so x = -2/3 is not a solution

x = -3/2:  ( ) ( ) = -22 3/4; so x = -3/2 is not a soution

PLEASE ANSWER QUICKLY! THIS IS FOR A STUFY GUIDE DUE IN 5 MINUTES!!!!!
6CO2 + 6H2O ———» C6H12O6 + 6O2

Is the equation above balanced or unbalanced? ___________

a- need to add coefficients
b- I don't know
c- Unbalanced
d- Balanced

Answers

Answer:

It's Balanced

Step-by-step explanation:

A simple word equation that can be used to describe the process of photosynthesis is carbon dioxide + water —> glucose + oxygen + water.  So it's a balanced chemical equation for the process can be written as 6CO2 + 6H2O —> C6H12O6 + 6O2

Hope this helps!

A union has successfully negotiated for its members to get 5% raises
annually. If a union member currently has a salary of $36,000, what will
her salary be in 3 years?

Answers

If I did my calculations right,

Her salary would be around $41,674.5

I hope this helps!

solve for u 5u + 9 - 4u = 17 (also don't have the answer be a fraction)

Answers

Answer:

=8

Step-by-step explanation:

Answer:

u=8

hope this helps

Step-by-step explanation:

UGENT! Please help due in 10 minutes :c I tried but I just..never got it..

Answers

Answer:

#19:the rule is every-time use the number and times it by 80%

#20:using a calculator, i got 16. i think it is wrong, but that is what i got.

Determine the value of the expression -6.5-(8.2-11.4)

Answers

Answer:

65558 карочедавай ×××××××

Answer:

-3.3

Step-by-step explanation: your welcome!(:

104.65/ 35
pls help and can u show me a example

Answers

Answer:

2.99 or 3

Step-by-step explanation:

25.37 x 3.8
pls help

Answers

Answer:

96.406 :)

Step-by-step explanation:

Answer:

calculator

Step-by-step explanation:

i

Help ASAP!!! Easy question i guess?

Which of the following two-dimensional shapes can be rotated to create a sphere?

A. Triangle
B. Square
C. Circle
D. Ellipse

please give an explanation and not just a letter or answer. Thank you.

Answers

The answer is C. circle because a sphere is formed by rotating a circle by any of its diameters

The shape that can be rotated to create a sphere is the circle (option C).

A sphere is a three-dimensional object with all points equidistant from its center. When a circle is rotated about its center axis, it creates a three-dimensional shape that perfectly matches the definition of a sphere.

Let's consider the other options and why they cannot be rotated to form a sphere:

A. Triangle: A triangle is a two-dimensional shape with straight sides. Rotating a triangle around any axis would not result in a three-dimensional shape with all points equidistant from its center, which is the defining characteristic of a sphere.

B. Square: Similarly, a square is a two-dimensional shape with straight sides. Rotating a square around any axis would not create a sphere, as it would still retain its flat, planar nature.

D. Ellipse: An ellipse is a two-dimensional shape resembling a squashed or stretched circle. Rotating an ellipse would not result in a sphere, as it would still retain its elliptical shape.

Therefore, the shape that can be rotated to create a sphere is the circle (option C) due to its symmetrical and curved nature.

To know more about sphere click here :

https://brainly.com/question/27821560

#SPJ2

Forty students went on a trip on Wednesday. On Thursday, 15% less students went on a similar trip. How many students went on the trip on Thursday?

Answers

Answer:

34

Step-by-step explanation:

40 * .15= 6

40-6 = 34

okkk so you do 40 * .15 because you just put a decimal point before all percentages to convert it into number

40*.15= 6

then subtract 6 to the original amount

40-6=34

34 students went on the trip on thursday cause 6 students got killed by bears in the last trip.

The price of a house is originally listed at $110,000. The owners are having a hard time selling it and decide to reduce the price to $101,200. What is the percentage decrease of the price of the house?

Answers

Answer:

8%

Step-by-step explanation:

110000 - 101200 = 8800 (change)

change/original price X 100

8800/110000 = 0.08

0.08 X 100 = 8

Nevaeh has read 168 pages of a 210- page book. What percent of the book has Nevaeh not read?

Answers

Answer:

168 ÷ 210 X 100

80 % is your answer

Step-by-step explanation:

folloe me plzzz

Write the equation of the line in slope-intercept form: y=mx+b
Given: Point (1,3) Slope: 2

Answers

Answer:

y=2x+1

Step-by-step explanation:

y-y1=m(x-x1)

y-3=2(x-1)

y-3=2x-2

y=2x-2+3

y=2x+1

A circle has a diameter of 28 feet. What is the
circumference of the circle?

Answers

Answer:

14

Step-by-step explanation:

the answer is 87.96 ft

if you have three apples and john takes 1 how many do you have

Answers

Answer:

you got two apple left I hope this helps

you would have 2 left

PLEASE HELP ME ?!?!?!

Answers

Answer:

19

Step-by-step explanation:

6x-10=3x+50
3x=60
x=20

hope this helps !

write a story problem that can be represented with the following equation:
8x + 3 = 27

Answers

Answer:

Not sure if this works but here you go

Step-by-step explanation:

Junko spends 27 dollars on bananas the tax is 3 dollars and each banana is 8 dollars how many bananas did junko buy

Answer:

read below

Step-by-step explanation:

A pack of pens costs 8 dollars at the store. you decide to buy three packs of them the tax is three dollars. so your total is 27 dollars.

alternatively:

You have 27$ to spend on pens. you know the tax will be 3$, and that each pack of pens costs 8$. what is the maximum amount of packs of pens you can buy?


please help me

give u 10pts ​

Answers

Answer:

The graph is not a function.

Step-by-step explanation:

Using the "vertical line test" to attach a vertical line to each of the points on the graph, we will find that the vertical line that passes through (0,0) has ot one, but two points on it. Remember, if the vertical line passes through more than one points, the graph is not a function. As we know, the vertical line passes through two points, those being (0, -4) and (0, -3). So, we can conclude that the graph is not a function.

how can I solve this problem ​

Answers

Answer:

50

Step-by-step explanation:

the angle that they want you to find is complementary to the angle that equals 40. Complementary means they will add up to equal 90. 90-40=50 so ADB = 50

What is the exact area of a circle having diameter 3 in.?

Answers

Answer:

2.25π square inches

Step-by-step explanation:

Area = π[tex]r^{2}[/tex]

Diameter = 2r

So in this case, radius = 1.5 inches

Plugging that into the area formula produces the answer

Any consecutive sides of a parallelogram are parallel.

A. Always True
B. Sometimes True
C. Never true

Answers

It’s always true cuz a parallelogram is parallel

ANSWER:Any consecutive sides of a parallelogram are parallel?

A. Always True is your answer.

Which expressions are equivalent to 3(x + 3y + 2x − y )?

3(3x + 2y) and 9x + 6y
3(3x + 4y) and 9x + 12y
3(x + 4y) and 3x + 12y
3(x + 2y) and 3x + 6y

Answers

Answer:

3(3x + 2y) and 9x + 6y

Step-by-step explanation:

3(x + 3y + 2x - y)

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

= 3 (3x + 2y)

= (3 • 3x) + ( 3 • 2y)

= 9x + 6y

Helpeoepeoeoeo show work

Answers

IMPORTANT THIGNS TO REMEMBER:

Has 20 lb. dog food!Gives dog 1 3/5 everyday!Find how much eaten after 2 days!Find how much is left!

ANSWER:

Dog has eaten 3 1/5 after 2 days!

There is 16 4/5 left in bag!

EXPLANATION:

Since she gives 1 3/5 to her dog everyday and their asking for 2 days you would multiply 1 3/5 × 2 OR add 1 3/5 + 1 3/5

Which would give you 3 1/5

So, the dog has eaten 3 1/5 lb. of dog food in 2 days.

However then, you would subtract 20 lb. - 3 1/5 lb. because there is 20 lb. dog food in all and the dog has eaten 3 1/5 of it. This would give you 16 4/5 lb.

Meaning there is 16 4/5 lb. left in the bag of dog food!

A line is parallel to y = -3x + 2 and
intersects the point (4,3). What is the
equation of this parallel line?
y = [?]x + [ ]

Answers

Answer:

y=-3x+15

Step-by-step explanation:

The function y=f(x) is graphed below. What is the average rate of change of the function f(x) on the interval -8 ≤ x ≤ -1?

Answers

Answer:

The average rate of change of the function is: 0

Step-by-step explanation:

The function y = f(x) is graphed below.

From the graph it is clear that:

at x = -8, the value of f(-8) = -10

at x = -1, the value of f(-1) = -10

We have to determine the average rate of change of the function f(x) on the interval -8 ≤ x ≤ -1.

so

at x₁ = -8, f(x₁) = f(-8) = -10

at x₂ = -1, f(x₂) = f(-1) = -10

Using the formula to determine the average rate of change of the function f(x) on the interval -8 ≤ x ≤ -1.

Average rate = [f(x₂) - f(x₁)] / [ x₂ - x₁]  

                      = [f(-1) - f(-8) ] / [-1-(-8)]

                      = [-10 - (-10)] / [-1+8]

                      = [-10 + 10] / 7

                      = 0 / 7

                      = 0

Therefore, the average rate of change of the function is: 0

Solve the system of equations
Y = 2x
X - Y = 10


Answers

Answer:

x=-10, y=-20

Step-by-step explanation:

first you substiture the y in the second equation with the first

x-2x=10

then solve

1x-2x=-1

-x=10

multiply both sides by a negative to make the varible a

positive

x=-10

now we substitue the x in the first equation with -10

y=2(-10)

y=-20

solve this plz????? thx

Answers

Answer:

AOD i think

Step-by-step explanation:

Answer:

angle aob

Step-by-step explanation:

I NEED HELP ASAP!!!!!!!

Answers

Answer:

9/25 = 36%

Step-by-step explanation:

First add up all of the students (150)

Then divide 54 by 150, 0.36

0.36 = 36% = 9/25

Which of the following shows the correct solution steps amd solution to 7x-4=-18

Answers

Answer:

D

Step-by-step explanation:

7x - 4 = -18            (add 4 to both sides)

7x = -14                  (divide both sides by 7)

x = -2

the answer is D

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