Find the value of cos (2pie/3)

Answer:

  (a)  1024 ways

  (b)  243 ways

Step-by-step explanation:

When answers are independent, the total number of ways all questions can be answered is the product of the number of ways each question can be answered.

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The first question can have one answer 4 ways. The second question can be answered 4 ways for each of the ways the first question was answered. That is, the two questions can be answered 4×4 = 16 ways. Similarly, each additional question multiplies the number of ways the questions can be answered by 4.

The 5 questions can be answered 4×4×4×4×4 = 4^5 = 1024 ways.

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There are 3 ways to answer the first question incorrectly. Each additional question can be answered incorrectly 3 ways for each of the ways previous questions were answered. The total number of ways all questions can be answered incorrectly is ...

  3^5 = 243

A student can answer all questions wrong in 243 different ways.

The correct answer is; No, because the 2 x 10 boards can support neither the width nor length of the room.

We are given;

Load requirement = 60 psf

Joist Spacing = 16 inches

Length of room; 13 feet 2 inches

Width of room; 11 feet 7 inches.

Since we want to consider whether 2 by 10 boards are appropriate, this  length of  2 by 10 will not be appropriate because it cannot cover up for a room with dimensions of 13 feet 2 inches and 11 feet 7 inches.

Thus, we can conclude that No, because the 2 x 10 boards can support neither the width nor length of the room.

The missing options are;

A. Yes, because 2 x 10 boards can support the width and length of the room

B. Yes, because 2 x 10 boards support the 70 psf

C. No, because 2 x 10 boards can support only the width of the room

D. No, because the 2 x 10 boards can support neither the width nor length of the room

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All the samples are given as {R&R, R&G, R&B, G&R, G&G, G&B, B&R, B&G, B&B}.

A sample is a group of clearly specified components. The number of items in a finite sample is denoted by a curly bracket.

Reese, Greg, and Brad meet once a week for coffee.

They each have their favorite café and, to be fair, they use randomization to choose where they will meet.

Each person has a colored marble: red (R) for Reese, green (G) for Greg, and blue (B) for Brad.

Each week, all three marbles are mixed well in a bag and a marble is selected.

The favorite café of the person associated with the selected marble is selected for that week's meeting.

Then the total number of the outcomes will be

Total outcomes = 3 × 3

Total outcomes = 9

All the samples are given below.

{R&R, R&G, R&B, G&R, G&G, G&B, B&R, B&G, B&B}

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The equation that is equivalent to S=pi r^2 h is h = S/pir^2

This is a way of representing a variable with another. Given the equation

S=pi r^2 h

We are to make 'h" the subject of the formula.

Divide both sides by pir^2

S/pir^2 =pi r^2 h/pir^2

h = S/pir^2

Hence the equation that is equivalent to S=pi r^2 h is h = S/pir^2

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The diameter [tex]d = 2r[/tex], where [tex]r[/tex] is the radius. Thus, [tex]d = 2 \times r = 2 \times 5 = 10cm[/tex]

Answer:

140

Step-by-step explanation:

Angles in a triangle add up 180 :

180 = 107 + 33 + y

y = 180 - (107+33)

y = 180 - 140

y = 40

Angles on a straight line add up to 180 so :

180 = x + y

180 = x + 40

x= 180 - 40

x = 140

Hope this helped and have a good day

Answer:

x = 140°

Step-by-step explanation:

Concepts

The Exterior Angle Theorem states that the two remote angles in a triangle is equal to the exterior angle.

Application

In this case, the two remotes angles are 107 and 33°, and the exterior angle is x. Now, all we have to do is just add 107 and 33 to get our answer.

Solution

#2

The shape can be cut into four rectangles and two squares.

Total surface area:

⇒ four rectangles + two squares

⇒ 4(Length × Width) + 2(side × side)

⇒ 4(6 × 1.5) + 2(1.5 × 1.5)

⇒ 36 + 4.5

⇒ 40.5 inch²

Therefore, the surface area of the rectangular prism is 40.5 inch²

#3

The polygons that would be used in this net surface area are:

✔ rectangle

✔ square

Answer:

40.5 in²

Step-by-step explanation:

Formula applied :

Surface Area (rectangular prism)

⇒ 2(Length × Width + Width × Height + Length × Height)

=============================================================

Given :

⇒ Length = 6 inches

⇒ Width = 1.5 inches

⇒ Height = 1.5 inches

============================================================

Solving :

⇒ Surface Area = 2(6 × 1.5 + 1.5 × 1.5 + 6 × 1.5)

⇒ Surface Area = 2(9 + 2.25 + 9)

⇒ Surface Area = 2 × 20.25

⇒ Surface Area = 40.5 in²

Step-by-step explanation:

We know that the area of an equilateral triangle of side a cm is

Let a cm here be 9√3 then we could get our solution.

[tex] \rm\implies \rm 9 \sqrt{3} = \cfrac{ \sqrt{3} }{4} \: a {}^{2} [/tex]

[tex] \implies \rm \: \cfrac{ \sqrt{3} }{4} {a}^{2} = 9 \sqrt{3} [/tex]

[tex] \implies \rm \: a {}^{2} = 36[/tex]

[tex] \implies \rm \: a = \sqrt{36} = \sqrt{6 \times 6} [/tex]

[tex] \implies \rm \: a = 6 \: cm[/tex]

Thus, the side of the equilateral triangle is 6 cm.

Answer:

see the attachment photo!

Answer:

The answer is c

Step-by-step explanation:

one add the numbers 108 & 96=204

then add the numbers from c which is 30+30=60 43+43=86 29+29=58

then add 60+86+58 which will be 204 so c is the answer your welcome

come

Answer:

The correct answer is x = 51.

Step-by-step explanation:

We have been given an image of two intersecting lines. We are asked to find the value of x.

We can see that both angles are supplementary (adding up to 180 degrees), so we can set an equation as:

x + 23 + 2x + 4 = 180

x + 2x + 4 + 23 = 180

3x + 27 = 180

3x + 27 - 27 + 180 - 27

3x = 153

3x/3 = 153/3

x = 51

Therefore, the value of x is 51.

Hope this helps:) Goodluck!

Answer:

Step-by-step explanation:

2x + 4 + x + 23 = 180

3x + 27 = 180

3x = 153

x = 51

Answer:

32

Step-by-step explanation:

Answer:

  i) 52

  ii) 66

Step-by-step explanation:

This sort of problem is usually solved using some sort of table or Venn diagram. We have used a table in the attachment such that each of the cells in the grid represents one of the 8 possible combinations of coffee, tea, or chocolate.

The numbers in black are given directly by the problem statement. The numbers in blue are calculated from the numbers in black and one of the other given numbers in the problem statement. The numbers in red are calculated so the totals work out correctly.

The cells shaded blue-gray are "one and only one" of the drinks. The cell shaded purple-gray is "don't like any".

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We assume that any form of "coffee" is "black coffee." The problem statement tells us 52 people like coffee.

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The last number we calculated is the number who like none of the drinks: 66. This brings the total of non-coffee drinkers to 148.

_____

Additional comment

As noted above, the colors more or less indicate the order of the calculations. We started with 36 who like coffee only, and 46 who like coffee and not tea. That means 46-36=10 like coffee and chocolate, but not tea.

Since 16 like coffee and chocolate, that leaves 16-10=6 who like coffee and tea and chocolate (all three).

96 like chocolate, but 16 of those like chocolate and tea. The other 80 like chocolate, but not tea.

46+16=52, so there must be 0 who like coffee and tea, but not chocolate.

The number who like only one is 108. We already have 36 that are coffee only, 80-10 = 70 that are chocolate only, so there must be 108 -70 -36 = 2 who like tea only.

Now, we can finish filling the top row of the table and the totals in the bottom row.

Answer:

A

Step-by-step explanation:

the answer is A because I said its C :)

The correct interpretation of the probability P(X < 5) is; 0.8

We are given the probability of the spin values are;

Probability of Spin Value of 0 = 0.4

Probability of Spin Value of 1 = 0.2

Probability of Spin Value of 2 = 0.2

Probability of Spin Value of 5 = 0.1

Probability of Spin Value of 10 = 0.1

P(X < 5) simply means the probability of getting a spin value less than 5. Thus;

P(X < 5) = P(0) + P(1) + P(2)

P(X < 5) = 0.4 + 0.2 + 0.2

P(X < 5) = 0.8

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Answer:

  $19,201.09

Step-by-step explanation:

The future value of the annuity due can be found using any of a number of apps, calculators, or spreadsheets. It can also be found using the formula ...

  A = P(1 +r)((1 +r)^n -1)/r

where P is the annual payment, r is the annual interest rate, and compounding is yearly for n years.

  A = 2535(1.1418)(1.1418^5 -1)/0.1418 ≈ 19,201.09

The value will be $19,201.09.

Answer:

x = -12

y = 10

(x, y) = (-12, 10)

Step-by-step explanation:

Answer: 2+2= DA ROCK

Step-by-step explanation:

SCAM..... ITS ABOUT DRIVE ITS ABOUT POWER WE STAY HUNGRY WE DEVOURE PUT IN THE WORK PUT IN THE HOUR AND TAKE WHATS OURSSSSSSSSSSSSSSSSSSSSS


YEHHHHHHHH

The conditional proposition for the given sentence is:

"For all real numbers a, b, and c, if a = b, then a−c=b−c."

A conditional statement is of the form:

If P, then Q.

Where P and Q are two propositions.

The sentence is:

"For all real numbers a, b, and c, a = b implies that a−c=b−c."

So the propositions are:

P = "a = b"

Q = " a - c = b - c"

Where we need to define that this works for all real numbers.

So the conditional proposition is:

"For all real numbers a, b, and c, if a = b, then a−c=b−c."

So the correct option is C.

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There are 720 different ways the campaign staff can arrange her travel route

The given parameter is:

Cities = 6

The candidate cannot be at all 6 cities at the same time.

This means that we make use of factorial.

So, we  have:

Ways = 6!

Evaluate the factorial expression

Ways = 720

Hence, there are 720 different ways the campaign staff can arrange her travel route

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Based on what we know a function to be today, Euler mean an analytic expression "an expression formed from operations such as addition, multiplication, powers, and roots"

According to Euler, a function of a variable quantity is an analytic expression composed in any way whatsoever of the variable quantity and numbers or constant quantities.”

The function is. combination of expression which includes variables and constants using various operations such as roots, power and multiplication.

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Answer:

living beyond your means.

Step-by-step explanation:

Pay for what you need and don't go into debt.

Answer: Both plans cost the same when 50 texts are sent.

Step-by-step explanation:

When x=50 (meaning 50 texts are sent), the y coordinate (which represents the cost) is the same.

Step-by-step explanation:

let p be the point which is at a distance of 4 units from the x-axis and at a distance of 5 units from the y axis

(i) When P lies in the first quadrant then the coordinates of P are (5,4).

(ii) When of P lies in the second quadrant then the coordinates of P are (-5,4).

(iii) When P lies in the third quadrant then the coordinates of P are (-5,-4).

(iv) When P lies in the fourth quadrant then the coordinates of P are (5,-4).

Known as periodic reports, interim reports or interim statements, these updates provide important company information between annual reporting periods. To help protect investors and keep the public informed, regulations typically require public companies to submit company performance reports more than once a year.Known as periodic reports, interim reports or interim statements, these updates provide important company information between annual reporting periods. To help protect investors and keep the public informed, regulations typically require public companies to submit company performance reports more than once a year.

The number of years it will take for the money to be $2900 is 40.91 years

Using simple interest formula,

I = prt / 100

we are looking for t

where

Therefore,

I = 2900 - 1100 = 1800

1800 = 1100 × 4 × t / 100

cross multiply

180000 = 4400t

t = 180000 / 4400

t = 40.9090909091

t = 40.91 years

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