What are the solutions to the equation cosine of the quantity x plus 3 times pi over 2 end quantity equals radical 2 over 2 on the interval [0, 2π]?

pi/4 , 3pi/4
5pi/4, 7pi/4
-pi/4, 3pi/4
3pi/4, 5pi.4

The expression fails to compute the area of a triangle having base b and height h is (1.0 /2.0)*b*h.

Therefore the answer is A.

The correct expression to compute the area of a triangle having base b and height h is (1/2) * b * h, or equivalently, 0.5 * b * h.

Expression A is incorrect because it uses floating-point division, which may result in round-off errors or inaccuracies in the computation.

Expression B is the correct expression because it uses integer division and the division by 2 is clear.

Expression C is also correct because it uses floating-point division and the division by 2.0 is clear.

Therefore, both expressions B and C are correct, and expression D is a correct equivalent form of B and C.

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--The question is incomplete, answering to the question below--

"which expression fails to compute the area of a triangle having base b and height h (area is one-half base time height)?

A. (1.0 /2.0)*b*h

B. (1 /2)*b*h

C. (b*h)/2.0

D. 0.5*b*h"

Answer:

Step-by-step explanation:

19?

Step-by-step explanation:

a row n adds the number n to the sum (= the first number from the right in row n-1), and therefore also n to the 3rd number from the right of row n-1.

in any case, the first number from the right is the result of

1 + 2 + 3 + 4 + 5 + ... + n-1 + n

that sum is

n(n+1)/2

for the row 20 that is

20×21/2 = 10×21 = 210

the 3rd number from the right in row 20 is then

210 - 2 = 208

Answer:

I have solved it and attached in the explanation.

Step-by-step explanation:

The length of line segment KJ is D. 3√5 units

A line segment in geometry is a section of a straight line that is enclosed by two clearly defined endpoints and contains all of the points on the line that lie inside those endpoints. The Euclidean distance between two ends of a line segment determines its length.

∠KMJ = 180° - 90° (adjacent angles on a straight line)

= 90°

Using Pythagorean Theorem,

KJ² = 6² + 3²

KJ² = 45

KJ = √45

= √9√5

= 3√5

The answer is D. The length of line segment KJ is 3√5 units.

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Answer:

0.4% increase although I don't know what a percentage point is sorry.

Step-by-step explanation:

Answer:

The increase in percentage points was 0.4

The increase in percent was 16%

Step-by-step explanation:

To find the increase in percent, divide the increase in percentage points by the initial unemployment rate and multiply by 100: (0.4 / 2.5) * 100 = 16%.

The value of the missing internal angle in the irregular polygon is equal to 125°.

The sum of internal angles (S), in degrees, in any convex polygon is determined by the following formula:

S = 180 · (n - 2)

Where n is the number of sides in the polygon.

According to the image seen beside, we find an irregular pentagon, that is, a polygon with five sides. First, determine the sum of internal angles:

S = 180 · (5 - 2)

S = 180 · 3

S = 540°

Second, find the value of the missing internal angles:

y = 540° - 86° - 142° - 72° - 115°

y = 125°

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Answer: Total price: $28.67

Step-by-step explanation:  From Courtney Summers, the author of Cracked Up To Be, comes a dark new tale of high school rivalry in which vicious rumors and nasty tricks are the currency that buys you popularity or seals your fate at the bottom of the food chain.

The length of the rectangle is 8.2 feet.

Given area of the rectangle is 82 feet and width is 10 feet

let variable : length of rectangle

then the equation is 10x=82

x=82/10

x=8.2

x=length=8.2

Therefore the length of the rectangle is 8.2 feet.

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The probability that exactly one of Zoe's cupcakes had caramel inside after the cupcakes were randomly arranged and customers were allowed to choose their own cupcakes is 1/3266.

The probability that exactly one of Zoe's cupcakes had caramel inside can be calculated as follows:

P(exactly one cupcake with caramel) = (number of ways to choose one cupcake with caramel) / (total number of combinations of three cupcakes)

There are 6 cupcakes with caramel, so there are 6 ways to choose one cupcake with caramel.

Out of 150 cupcakes, there are 150 choose 3 = 19,600 ways to choose three cupcakes.

So, the probability that exactly one of Zoe's cupcakes had caramel inside is:

P(exactly one cupcake with caramel) = 6 / 19,600 = 1/3,266

Therefore, the probability that exactly one of Zoe's cupcakes had caramel inside is 1/3,266.

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The area and volume based on the information will be area 144 √3 square meters and 240√3 cubic meters

To calculate the area of the hexagonal prism, you need to calculate the area of each face and add them up. To calculate the area of one face of the hexagon, you can use the following formula:

Area of a regular hexagon = (3 * √3) / 2 * side^2

Plug in the side length of 4m:

Area of a face = (3 * √3) / 2 * 4^2 = (3 * √3) / 2 * 16 = 24 * √3

So the area of one face is 24 * √3 square meters. There are a total of 6 faces, 3 of which are hexagons, so the total area of the hexagonal prism is:

Total area = 6 * (24 * √3) = 144 * √3 square meters

To calculate the volume of the hexagonal prism, multiply the area of one face by the height:

Volume = (24 * √3) * 10 = 240 * √3 cubic meters

So the volume of the hexagonal prism is 240 * √3 cubic meters

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Nelson is asked to move water to fill a container in the shape of a hexagonal prism with the following measurements: Side of the polygon= 4m and Height= 10m. Help him calculate the area of the figure and then the volume. And assuming that we have another prism three times the space, what would its volume be?

The new credit card balance on her credit card is $219 if no interest is added on balance.

The total sum of money owing by a cardholder to their credit card company is known as their credit card balance. Balances fluctuate depending on when and how they are used; they rise when purchases are made and fall when payments are made by cardholders. Any sum that is left over at the end of the billing cycle is added to the bill for the following month and is subject to interest. The balances on a person's credit cards play a significant role in determining their credit score. Future lenders will evaluate them to assess the risk (and price) of extending further credit to their clients.

Given that Mabel owes $374 and make a repayment of $155.

Then the new credit card balance is, if no interest is added on balance

= $374 - $155

= $219

So, The new credit card balance on her credit card is $219

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Answer:

bring -18x to 2x

2x-18x

then bring -4 to +4

2x-18x+4-4

Since ∠A and ∠B are vertical angles, they have equal measures, so m∠A = m∠B. We can set the two expressions equal to each other:

7x + 4 = 8x - 20

Solving for x:

-x = -24

x = 24

So, m∠A = 7x + 4 = 7 * 24 + 4 = 188, and m∠B = 8x - 20 = 8 * 24 - 20 = 188.

Therefore, the measure of ∠B is 188 degrees.

Answer:

Step-by-step explanation:

4(4y+5)=3(y+7)

16y+20=3y+21

13y=1

y=1/13

Answer:

y = 1/13

Step-by-step explanation:

 (4y + 5) : 3 = (y+7) :4

Product of extremes = (4y + 5) * 4

                                  = 4y *4 + 5*4

                                  = 16y + 20

Product of mean = 3*(y +7)

                            = 3*y + 3*7

                            = 3y + 21

Product of extremes = product of mean

          16y + 20 = 3y + 21

Subtract 20 from both sides,

                  16y = 3y + 21 - 20

                  16y = 3y + 1

Subtract 3y from both sides,

               16y - 3y = 1

                     13y = 1

                        [tex]\boxed{\bf y =\dfrac{1}{13}}[/tex]          

Based on the information from the sets, it can be inferred that the correct answer is: red, green (option C).

To identify the correct answer we must take into account the elements that are in each set. Once we identify this information, we must analyze the elements in common between the sets. In accordance with the above, we must take into account this:

Based on the above, the correct answer is red and green because these are the elements that have the sets A, B, and C.

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The probability that the committee will contain 2 accountants and 3 non-accountants is (6 × 56) / 792 = 6/66 = 3/33.

A corporate board refers to a governing body of a corporation, usually consisting of elected or appointed members, who are responsible for overseeing the management of the company and making important decisions related to its strategy, finances, operations, and other aspects. The board serves as a representative of the shareholders and is responsible for overseeing the actions of the CEO and other executives, ensuring that the company is run in a manner that benefits its stakeholders.

The probability that the committee will contain two accountants and three non-accountants can be calculated as follows:

The number of ways to choose 2 accountants out of 4 is 4 choose 2, or 4C2 = 6.

The number of ways to choose 3 non-accountants out of 8 (12-4) is 8C3 = 56.

The total number of ways to choose 5 people from 12 is 12C5 = 792.

Therefore, the probability that the committee will contain 2 accountants and 3 non-accountants is (6 × 56) / 792 = 6/66 = 3/33.

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Answer: Check the numbers that are already there.

Step-by-step explanation:

Example, what times 6 equals 24? then divided 24 by that number. Do this for all the numbers

We can then plug this value into the given for XZ, which is 3x, to solve for the length of XZ. This comes out to be 18. Therefore, the value of x is 6, and the length of XZ is 18.

x = 6, XZ = 18

To solve for x, we can use the formula for the midpoint of a segment, which is (x + z)/2.

Plugging in the given values, we get (x + 13)/2 = 6.

Simplifying, we get x = 6.

To solve for XZ, we can simply plug in the given value for x, which is 6.

Therefore, XZ = 3(6) = 18.

Given three values related to a line segment, XZ, XT, and TZ, we can solve for both the value of x and the length of XZ. To do this, we can use the formula for the midpoint of a segment, which is (x + z)/2. Plugging in the given values for XT and TZ, we can solve for x, which comes out to be 6. We can then plug this value into the given for XZ, which is 3x, to solve for the length of XZ. This comes out to be 18. Therefore, the value of x is 6, and the length of XZ is 18.

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Event R: Drawing a Red Ballot, Event B: Drawing a Blue Ballot, Event Even: Drawing an Even Numbered Ballot, Event Odd: Drawing an Odd Numbered Ballot.

The general election is today, and volunteers are organizing the ballots. Depending on the part of the city in which a citizen lives, he or she receives a different ballot. The types of ballots consist of RED ballots numbered 1, 2, 3, 4 and BLUE ballots numbered 1, 2, 3, 4. First, the volunteers need to define the events of drawing a red ballot and drawing a blue ballot. This can be done by defining the events R and B, respectively. Next, the volunteers need to define the event of drawing an even numbered ballot and the event of drawing an odd numbered ballot. This can be done by defining events Even and Odd, respectively. The volunteers can then use these events to determine which ballots are being drawn by the citizens. For example, they can use the events R and Even to determine which citizens are drawing a red even numbered ballot.

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Answer:

Below

Step-by-step explanation:

From mile 3 to mile 18 is 15 miles

   He needed   2 hrs - .75 hr  = 1.25 hr to run 15 miles

15 miles / 1.25 hr =  12 miles per hour    ( VERY fast !)

Answer:

Step-by-step explanation:

m

The product of the given expression; 4x (x²) as required to be determined is; Choice 1; 4x³.

It follows from the task content that the product of 4x (x²) is to be determined as required.

Since the given expression is; 4x (x²); we have that;

4 • x • x²

It therefore follows from the product of powers law of indices that we have;

4•x³

= 4x³.

Ultimately, the product of the expression is; 4x³.

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The commission earned by the salesperson for selling a $25,000 car with an 18% commission rate can be calculated by multiplying the price of the car by the commission rate:

Commission = 0.18 * $25,000

Commission = $4,500

Therefore, the salesperson would earn a commission of $4,500 for selling the car.

3rd option is correct.

Answer:

i) 9

ii) 11

Step-by-step explanation:

First off, what is a "mode"?

The mode in a set of data is simply the most common answer/outcome;

Next, we need to understand the data;

In this case, families were asked about the number of cats they have;

The children answered 0, 1, 2 or 3;

8 families have 0 cats,

6 have 1,

10 have 2,

x have 3

So, the mode will be the most common answer to how many cats a family has;

As we can see from the data, the most common response was 2, i.e. 10 families have 2 cats, compared to only 8 with 0 cats and 6 with 1 cat;

If we know the mode is 2, the value of x has to be less than 10 as it is not the most common response;

The largest possible value will be 9.

If the mode is 3, then that means the x has to be the greatest number of responses;

Since the greatest number of responses to the other options is 10, then the number of responses to having 3 cats has to be at least 11;

The smallest possible value of x, if the mode is 3, will be 11.

The  displacement x of the moving puck is; 0.43 meters

The displacement is defined as the change in position of an object. It is also called a vector quantity and has a direction and magnitude

The parameters given here are;

The polar coordinate initial velocity vector; U = 2.35 m/s, -22°

Final velocity vector; V = 6.42 m/s, +50°

This suggests to us that Cartesian x axis is parallel to angle 0° and y axis is parallel to +90°.

Change of velocity component parallel to +90° =  magnitude*sinθ,.

Thus, the change of that velocity

Δv = |V|sin(50) - |U|sin(-22)

Δv = 6.42sin(50) - 2.35sin(-22)

Δv = 4.9 - (-0.88)

Δv = +5.8 m/s

The equation for displacement is;

s = ut +1/2at^2

where acceleration time t = Δt = 0.215 s

initial velocity u = |U|sin(-22) = -0.88 m/s

acceleration parallel to u is a = Δv/Δt = +5.8/Δt

a = 5.8/t m/s^2

Thus;

s = -0.88t + ¹/₂* 5.8/t * t²

s = -0.88t +2.9t

s = 2.0t

s = 2.0 * 0.215

s = 0.43 m

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Answer:

The solution to the system is (1.8, 7.6)

Step-by-step explanation:

To solve the system of linear equations by graphing, we need to plot the two lines on the same coordinate plane and find the point where they intersect, which will be the solution of the system.

Plot the lines:

y = 2/3x + 4 can be written as y = (2/3)x + 4, where the slope is 2/3 and the y-intercept is 4.

y = -x + 1 can be written as y = -x + 1, where the slope is -1 and the y-intercept is 1.

Find the intersection point:

To find the intersection point, we can substitute the x-value from one equation into the other equation. Let's use y = 2/3x + 4.

Substitute x from y = 2/3x + 4 into y = -x + 1:

-x + 1 = 2/3x + 4

Multiplying both sides by -3, we get:

3x - 3 = -2x - 12

Adding 2x to both sides, we get:

5x - 3 = -12

Adding 12 to both sides, we get:

5x = 9

Dividing both sides by 5, we get:

x = 1.8

Now that we have x, we can substitute it back into either equation to find the corresponding y-value. Let's use y = 2/3x + 4:

y = 2/3x + 4

y = 2/3 * 1.8 + 4

y = 3.6 + 4

y = 7.6

So the solution to the system is (1.8, 7.6), which is the point where the two lines intersect.