what is the cosine of π/3

Answers

Answer 1
Answer: 1/2

I recommend printing out a sheet of exact trigonometric functions or using a unit circle to answer problems like these if you haven’t memorized some of them. Or just use a calculator in radians mode if you’re allowed to.

Related Questions

I need help solving this problem :) please help

Answers

Answer:

25

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

How can you divide polynomials? What are the different methods you can use?Which method do you prefer and why?

Answers

All it says it question label

Determine whether the scenario involves independent or dependent events.

A bag contains six red marbles and five blue marbles. You randomly pick a marble and then pick a second marble without returning the marbles to the bag. The first marble is red and the second marble is blue

Answers

Independent; 6/12 * 6/12 = 1/4

I believe this is correct, sorry if it’s not

A rectangular playground area is 3,162 meters. The width is 51 meters. Find the length?

Answers

Answer:  62 meters

Work Shown:

area = length*width

length = area/width

length = 3162/51

length = 62 meters

A six pack of soda costs $3.00. What is the price per can?
PLEASEEE HELPPPPPPPPPPPPPPPP

MI PAN ZUZUZUZUZUUZU

Answers

Answer:

price per can is 0.5

Step-by-step explanation:

Which is the graph of f(x) =
4(3)?
y
y
7
6
5
5
4
4
3
3
3
2
2
2
-1
1
+
-3 -2 -14
1
2
3
4
5
8
-3 -2 -1
1
2
3
4
5
8
-3 -2 -2
1
2
3
4
5
6
2
2
ܕܝܚ.
جسمة

Answers

the answer would be the first 1.

Determine the center and radius of the following circle equation:
x^2 + y^2 + 12x + 16y + 19 = 0

Answers

Answer:

radius: 9

center: (-6, -8)

Step-by-step explanation:

First, you may wan to rearrange the equation so it is easier to sole, like:

x^2 + 12x + y^2 + 16y + 19 =0

Next, we need to complete the square. x^2 + 12x is the start of the square of x + 6, which ends in 36, and y^2 + 16y is the start of the square of x + 8, which ends in 64. We can start to write in the squares like:

x^2 + 12x + 36 - 36 + y^2 + 16y + 64 - 64 + 19 = 0

(36 & 64 are subtracted so the equation stays the same)

You can factor getting:

(x + 6)^2 - 36 + (y + 8)^2 - 64 + 19 = 0

You can combine the constants to get -36 - 64 + 19 = -81 and we can add 81 to both sides to get:

(x + 6)^2 + (y + 8)^2 = 81

The standard form of a circle equation is:

(x - h)^2 + (y - k)^2 = r^2

where (h, k) is the center and r is the radius.

In this case, by substituting, we get the center is (-6, -8) and the radius is 9.

Billy ran 3 miles on his first day of training. The next day he ran 2/3 that distance. How far did he run the second day?

Answers

billy ran 2 miles. 2/3 would be equivalent to 3-1 in this case so that would equal 2

solve the following 4x-3=2x+7

Answers

Answer: x=5 (simplified)

Answer:

4x-3=2x+7

4x-2x=7+3

2x=10

2x/2x=10/2

x=5

find the volume of a cake with radius of 8 and height of 5

Answers

I’m pretty sure it’s 8.4 inches


Solve: -7(3x - 7) + 21x > 50

Answers

Answer: Option 2

Step-by-step explanation:

[tex]-7(3x-7)+21x \geq 50\\\\-21x+49+21x \geq 50 \\\\49\geq 50[/tex]

This is false, so there are no solutions.

Find the area of the square below.

if im correct, its 9. But I want to double check since I haven't done this in a while!

Answers

Answer:

its 9 only

Step-by-step explanation:

cuz the formula of area of square is side²

Answer:

Yeah it's 9. Bcs the area of the square is *side × side*

If there are estimated to be 10 ^ 11 galaxies in the known universe and 10 ^ 11 stars in each galaxy, how many stars are estimated to be in the universe?​

Answers

Answer: We can use the information given to find the number of stars in the universe by multiplying the number of galaxies by the number of stars per galaxy:

number of stars = (10 ^ 11 galaxies) x (10 ^ 11 stars per galaxy)

This is a simple arithmetic problem and we can find the solution by multiplying the numbers 10^11 and 10^11

10^11 * 10^11 = (10101010101010101010)(101010101010101010*10) = 10^(11+11) = 10^22

So, there are estimated to be 10 ^ 22 stars in the known universe.

Step-by-step explanation:


HELP! aaa 5,6,7,8 bonus

Answers

hey could u elaborate i can’t tell what your question is but id be willing to help!

1. The height of a right triangular prism is 1 5/6 inches. Each side of the triangular base measures 10 inches, and the height of the base is 8 2/3 inches. The triangular prism is placed atop a cube whose side measures 10 inches so that one of the triangular prism’s bases lies completely on one side of the cube.
What is the surface area of the solid formed?
100 POINTS!!! IF YOU DRAW AN ACCURATE DIAGRAM TOO, YOU WILL BE AUTOMTIC BRAINLIEST!!!!!!

Answers

If the height of a right triangular prism is 1⁵/₆ inches. The surface area of the solid formed is 598.33 in².

What is surface area?

The surface area of a solid object is a measure of the total area that the surface of the object occupies.

A three-dimensional solid form with six faces, including rectangular bases, is called a rectangular prism. A rectangular prism also refers to a cuboid. A cuboid and a rectangular prism have the same cross-section.

First step:-

Right triangular prism=1⁵/₆ inches= 11/6 inches

Height of the base=8²/₃ inches = 26/3 inches

Second step:-

Surface area = 5(10× 10) + (0.5÷ 10 × 26/3) + 3(10× 11/6)

Surface area = 5(100) +43.33+ 3(18.33)

Surface area = 500) +43.33 + 55

Surface area = 598.33 in²

Therefore the surface area of the solid formed is about 598.33 in²

Learn more about the surface area here:

brainly.com/question/27232541

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What is the growth factor of the following example? Assume time is measured in the units given.

A city grows by 28% per decade

a. 0.28 per decade c. 128 per decade
b. 28 per decade d. 1.28 per decade

Please select the best answer from the choices provided

Answers

Answer:

D. 1.28 per decade

Step-by-step explanation:

I calculated it logically

6p – 9 = 9; then p=?​

Answers

Answer:

p = 3

Step-by-step explanation:

A family buys a studio apartment for $140,000 They pay a down payment of $35,000

a. Their down payment is what percent of the purchase​ price?
b. What percent of the purchase price would a ​$7,000 down payment​ be?

Answers

Answer:

a. Their down payment is 25% of the purchase price.

Calculation:

Down payment ÷ Purchase price = Percentage

$35,000 ÷ $140,000 = 0.25 = 25%

b. A $7,000 down payment would be 5% of the purchase price.

Calculation:

Down payment ÷ Purchase price = Percentage

$7,000 ÷ $140,000 = 0.05 = 5%

a circular picture whose diameter is 4 decimeter is framed in a rectangle board with dimension of 6 decimeter by 4 decimeter what is the area of the board that can be seen​

Answers

Answer is [tex] \bf \dfrac{80}{7} [/tex] dm².

In order to calculate the area of the board that can be seen, we need to calculate the area of the the rectangular board and the circular frame. The difference of both's area is the required answer.

Refer to the attachment for step by step solution. :)

The area of the board that can be seen is  11.44 decimeter square.

What is the area of the board that can be seen?

The area of the board that can be seen is equivalent to the difference between the area of the circular picture and the area of the rectangular board.

Area of a circle = πr²

Where :

π = pi = 3.14R = radius = diameter = 4/2 = 2

3.14 x 2² = 12.56 d²

Area of the rectangle = length x width

6 x 4 = 24

Area of the board that can be seen = 24 - 12.56 = 11.44 decimeter square

To learn more about the area of a circle, please check: https://brainly.com/question/14351152

The function f(x)= square root of x is translated using the rule (x,y) (x-7,y+2) to create f(x)what is the domain of f(x)?

Answers

The value inside the square root should be greater than or equal to zero. Then the domain of the function will be [7, ∞).

What is a function?

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The domain means all the possible values of x and the range means all the possible values of y.

The function is given below.

f(x) = √x

The function after the transformation, then we have

f(x) = √(x - 7) + 2

The value inside the square root should be greater than or equal to zero. Then the domain of the function will be given as,

x - 7 ≥ 0

x ≥ 7

More about the function link is given below.

https://brainly.com/question/5245372

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alex, beverly and carl live on the same straight road. alex lives 12 miles from beverly and carl 4 mies from berve,y, how far does alex live from carl?

Answers

Alex to Beverly = 12 miles
Carl to Beverly = 4 miles

So it’s 12 + 4 = 16 miles

Jamie and Hanna are 288 miles apart, traveling towards each other. If Hanna travels 22 mph and Jamie travels 14 mph how long until they meet?

Answers

Answer:

It will take them 8 hours to meet

Step-by-step explanation:

If Hanna travels 22 mph towards Jamie and Jamie travels 14 mph towards Hanna that means that the speed with which the close up equals...

22 + 14 = 36 mph

Now divide the distance between them by the speed with which they get closer to each other, and get...

288 miles / 36 mph = 8h

In ΔWXY, w = 4.8 inches, x = 7.2 inches and y=9.3 inches. Find the measure of ∠W to the nearest degree.

Answers

The answer is the number 31

Patel is solving 8x2 + 16x + 3 = 0. Which steps could he use to solve the quadratic equation? Select three options. 8(x2 + 2x + 1) = –3 + 8 x = –1 Plus or minus StartRoot StartFraction 5 Over 8 EndFraction EndRoot x = –1 Plus or minus StartRoot StartFraction 4 Over 8 EndFraction EndRoot 8(x2 + 2x + 1) = 3 + 1 8(x2 + 2x) = –3

Answers

Answer: To solve the quadratic equation 8x^2 + 16x + 3 = 0, Patel could use the following steps:

Divide both sides of the equation by 8 to obtain x^2 + 2x + 3/8 = 0.

Rewrite the equation in the form (x + a)^2 = b by completing the square: x^2 + 2x + (1/2)^2 = (1/2)^2 - (3/8).

Rewrite the equation as (x + a)^2 - b = 0. In this case, a = 1/2 and b = -3/8.

Use the quadratic formula to solve for x:

x = (-1/2) +/- sqrt((1/2)^2 - (-3/8))

= (-1/2) +/- sqrt(5/8)

= (-1/2) +/- sqrt(40/64)

= (-1/2) +/- sqrt(10/16)

= (-1/2) +/- (5/8)

= -1 +/- 5/8

= -1 + 5/8 or -1 - 5/8

= -7/8 or 1/8

Therefore, the solutions to the quadratic equation are x = -7/8 or x = 1/8.

Step-by-step explanation:

Which set of angle measures can be used to construct an acute scalene triangle?

Answers

Answer:

C = 36°, 57°, 87°

Step-by-step explanation:

scalene = all angles are different.

acute = all angles are under 90°.

triangle = all angles add up to 180°.

The only option that works for this is C) 36°, 57°, 87°

PLEASE HELPPPP MEEEEEEEE

Answers

Answer:

y = 3x + 9

Step-by-step explanation:

The initial equation would be y = mx + b where m is the slope and b is the y-intercept. Then you would use the equation y^2 - y^1 / x^2 - x^1 to get the slope. Substituting the factors in it would be, 15 - 12 / 2 - 1 having a slope of 3. Then seeing as x is 0 y is 9, 9 must be the y-intercept.

how to work out the area of a parallelogram

Answers

the base timed by the height

2 in
Ben uses clay to make the rectangular prism to the left. Naomi
uses cardboard to make the triangular prism to the right. Compare
the volumes of the prisms. Use pencil and paper. Describe two
(The figures are not to scale) different methods by which you can compare the volumes.
11 in
5 in
in
18 in
5 in
Which statement best compares the volumes of the two prisms?
O A. Naomi's prism has the greater volume.
OB. Ben's prism has the greater volume.
OC. The prisms have the same volume.

Answers

Answer:

A

Step-by-step explanation:

Ben uses clay to make the rectangular prism to the left. Naomi uses cardboard to make the triangular prism to the right. Therefore, Naomi's prism has a greater volume.

What is the volume of the rectangular prism?

The volume of the rectangular prism is the product of the length, breadth, and height of the given prism.

Volume of rectangular prism = (length x width x height)

Ben uses clay to make the rectangular prism to the left.

Volume of rectangular prism = (length x width x height)

= 11 x 5 x 2

= 110 cubic in

Naomi uses cardboard to make the triangular prism to the right.

The volume of a right triangular prism = ( height× Base Area)

= 4 x 18 x 4

= 288 cubic in

Therefore, Naomi's prism has a greater volume.

Learn more about rectangular prism;

https://brainly.com/question/15843335

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Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the
correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag
the item to the trashcan. Click the trashcan to clear all your answers.
Solve this quadratic equation using the quadratic formula.
x^2 - 6x + 6 = 0

Answers

Answer:

x1=3+√3

x2=3-√3

Step-by-step explanation:

caiso calculator

mode 5 --> 3

then

1 = -6 =6

then hit =

you will get

x1=3+√3

x2=3-√3++99+

Sharon is painting her house. she needs 5 gallons of brown paint for every 7 gallons of white paint.  How many gallons of white paint does she need if she already bought 14 gallons of brown paint?

A. 10 gallons. B. 19.6 gallons
C. 16 gallons. D. 25 gallons

Answers

Answer:

19.6

Step-by-step explanation:

The ratio of brown paint to white paint is, 5:7 or [tex]\frac{5}{7}[/tex] so if he bought 14 gallons of white paint we need to figure out:

[tex]\frac{5}{7} =\frac{14}{x}[/tex]

which we can as it only has one unknown:

5x=14×7

5x=98

x=19.6

So the answer is 19.6

Answer:

B. 19.6 gallons

Step-by-step explanation:

5 Gallons of Brown ⇒ 7 Gallons of White

14 Gallons of Brown ⇒ x

x = 7 into 14 / 5

x = 98 / 5

x = 19.6

HOPE IT HELPS :)

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