(03.02 MC)

Look at the picture of a scaffold used to support construction workers. The height of the scaffold can be changed by adjusting two slanting rods, one of which, labeled PR, is shown:

A support structure is shown in which a right triangle PQR is formed with the right angle at Q. The length of PQ is shown as 14 feet, and the length of QR is shown as 9 feet.
Part A: What is the approximate length of rod PR? Round your answer to the nearest hundredth. Explain how you found your answer stating the theorem you used. Show all your work. (5 points)

Part B: The length of rod PR is adjusted to 18 feet. If width PQ remains the same, what is the approximate new height QR of the scaffold? Round your answer to the nearest hundredth. Show all your work. (5 points)

Answer:

[tex] \frac{1}{2} \times 25 \times 10 = 125 [/tex]

[tex] \frac{1}{2} \times breath \times perpedicular \: hight[/tex]

Answer:

each parking ticket costs $100 and each traffic violation costs $124.28.

Step-by-step explanation:

To find out the cost of each parking ticket and each traffic violation, we can set up two equations using the information given:

Let x be the cost of each parking ticket.

In the first month, 3 parking tickets cost 3x, and 14 traffic violations cost 14y.

The total cost for the first month is 2030, so we have:

3x + 14y = 2030

In the second month, 11 parking tickets cost 11x, and 11 traffic violations cost 11y.

The total cost for the second month is 2200, so we have:

11x + 11y = 2200

Now that we have two equations, we can use substitution to find the value of x and y.

From the first equation, we can solve for y:

y = (2030 - 3x) / 14

Substituting this expression for y into the second equation:

11x + 11((2030 - 3x) / 14) = 2200

Expanding the expression for y and simplifying the equation:

11x + 2030 - 33x / 14 = 2200

Multiplying both sides by 14:

154x + 28420 = 30800

Solving for x:

x = $100

So each parking ticket costs $100, and each traffic violation costs:

y = (2030 - 3x) / 14 = (2030 - 3 * 100) / 14 = (2030 - 300) / 14 = 1730 / 14 = $124.28

Therefore, each parking ticket costs $100 and each traffic violation costs $124.28.

Answer:

-727.41 dollars

Step-by-step explanation:

To find the cost of each parking ticket and each traffic violation, we can set up a system of two equations. Let's call the cost of a parking ticket "x" and the cost of a traffic violation "y".

For the first month:

3x + 14y = 2030

For the second month:

11x + 11y = 2200

We can solve for x and y using any method, such as substitution or elimination. For this problem, let's use substitution.

First, we'll solve for x in the first equation:

3x + 14y = 2030

3x = 2030 - 14y

x = (2030 - 14y) / 3

Next, we'll substitute this expression for x into the second equation:

11x + 11y = 2200

11((2030 - 14y) / 3) + 11y = 2200

2030 - 14y + 11y = 2200 * 3 / 11

2030 - 3y = 636

-3y = -1394

y = 464.67

Finally, we'll substitute this value of y back into the first equation to find x:

3x + 14y = 2030

3x + 14(464.67) = 2030

3x = 2030 - 6544.68

x = (2030 - 6544.68) / 3

x = -2180.23 / 3

x = -727.41

So each parking ticket costs approximately -727.41 dollars, and each traffic violation costs approximately 464.67 dollars. However, since these values are negative, it means the suspect has received a credit rather than being charged for these fees.

The base-nine system of 76 base 10 is 84

We will divide 76 by 9 and write down the remainder

9 | 76 R

9 | 8 | 4

9 |8 | 8

The remainder is then written from the bottom value giving us 84

Consequently, base 10 numbers can be converted to base 9 by dividing by 9 and writing the remainder in the reverse order of bottom to top.

Read more on base nine numbers:

https://brainly.com/question/16835996

#SPJ1

Answer:

I have graphed it and attached an image in the explanation part.

Step-by-step explanation:

Answer:

  6.8 ft

Step-by-step explanation:

You want the height of a tank with a base of 5.5 ft by 4 ft if adding 74.8 ft³ of water fills it halfway.

The volume of a rectangular prism is given by the formula ...

  V = LWH

The filled volume of the tank h feet high is ...

  74.8 ft³ = (5.5 ft)(4 ft)(h/2) . . . . . . the filled height is h/2

  74.8 ft³/(11 ft²) = h ≈ 6.8 ft . . . . . . divide by the coefficient of h

The height of the tank is 6.8 feet.

On solving the provided question we can say that here trigonometry  y = Asin(Bx + C)+D

Trigonometry is a branch of mathematics that studies the relationship between triangle side lengths and angles. From the use of geometry in astronomical study, the area first appeared in the Hellenistic era, around the third century BC. Exact methods is a branch of mathematics that deals with specific trigonometric functions and how they can be used in calculations. In trigonometry, there are six popular trigonometric functions. Their names and acronyms are sine, cosine, tangent, cotangent, secant, and cosecant (csc). Trigonometry is the study of the properties of triangles, particularly right triangles. However, the study of geometry is the characteristics of all geometric figures.

(x)=sin(x) consider y = Asin(Bx + C)+D adjusts the amplitude of the function (how high or low it is).

if you want to

B determines how many full wavelengths will occur during a certain time period, and C determines the phase shift (left/right on the axis) (positive values will shift left)

The vertical shift, or D, is up or down. For example, a +3 would move the entire function up 3 units.

In your situation, the amplitude is 4 since you wish to stretch vertically.

Additionally, you want to move it right three units. C = -3 (always the opposite of the direction you wish to go) (always the opposite of the direction you want to go)

g(x) = 4sin(x - 3)

To know more about trigonometry visit:

brainly.com/question/29002217

#SPJ1

Answer:

270 square units

Step-by-step explanation:

The area of a regular hexagon is given by the equation:

A = (1/2)(a · P)

where a is the hexagon's apothem and P is its perimeter.

1. We can first solve for the hexagon's perimeter by multiplying its side length (given as 15) by 6, since there are 6 sides.

P = 15 · 6 = 90

2. Now, we can plug that perimeter value into the formula for the area of a regular hexagon (above).

A = (1/2)(90 · 6)

A = (1/2)(540)

A = 270 square units

The measure of other sides of a triangle are 15.11 units and 10.76 units.

Law of Sines In trigonometry, the law of sines, sine law, sine formula, or sine rule is an equation relating the lengths of the sides of any triangle to the sines of its angles.

The formula for sine rule is sinA/a=sinB/b=sinC/c

In the given triangle, ∠B=45°, ∠C=52° and AB=12 units.

By using angle sum property of a triangle,

∠A+∠B+∠C=180°

∠A+45°+52°=180°

∠A+97°=180°

∠A=83°

Now, by using sine rule, we get

sin83°/a=sin45°/b=sin52°/12

0.9925/a=0.7071/b=0.788/12

0.9925/a=0.788/12 and 0.7071/b=0.788/12

0.788a=11.91 and 0.788b=8.4852

a=11.91/0.788 and b=8.4852/0.788

a=15.11 units and b=10.76 units

Therefore, the measure of other sides of a triangle are 15.11 units and 10.76 units.

Learn more about the sine rule here:

https://brainly.com/question/22288720.

#SPJ9

Nicholas will earn a commission of

Nicholas will earn a commission of 4% on the total price of the two cars sold to Mr. Sherman.

The total price of the two cars is $33,500 per car, so for two cars, the total price would be

= $33,500 * 2

= $67,000.

Therefore, Nicholas will earn a commission of 4% of $67,000

= $67,000 * 0.04

= $2,680.

hence, Nicholas will earn $2,680 in commission for selling the two cars to Mr. Sherman.

Learn more about commission at:

https://brainly.com/question/26283663

#SPJ1

Answer:

x² + 23x + 49

Step-by-step explanation:

area of rectangle = length × width

Area of outer rectangle:

(x + 10) × (2x + 5) = 2x² + 5x + 20x + 50 = 2x² + 25x + 50

Area of unshaded square:

(x + 1)² = x² + 2x + 1

shaded area = area of outer rectangle - area of square

shaded area = 2x² + 25x + 50 - (x² + 2x + 1) =

= 2x² + 25x + 50 - x² - 2x - 1

= x² + 23x + 49

The numbers on a number line is

    |-------|-------|-------|-------|

    0      1       2       3       4

                  *       *

               1 1/2   2 2/5

From the question, we have the following parameters that can be used in our computation:

Plot 1 1/2 and 2 2/5

To plot 1 1/2 and 2 2/5 on a number line, we can follow these steps:

Read more about number line at

https://brainly.com/question/24644930

#SPJ1

Answer: 4(45x^(3)-1)

Step-by-step explanation:

The value of x from the given triangle is approximately 19.10.

Triangle can be defined in which it consists of three sides , three angles and sum of three angles is always 180 degrees.

We can use the Pythagorean theorem to find the value of x. The theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides. Mathematically, it can be represented as follows:

c² = a²+ b²

where c is the length of the hypotenuse, and a and b are the lengths of the other two sides.

In this problem, c = 25, and we need to find the value of x which is the length of one of the other two sides. Let's call the other side y. Then, we can write the equation as follows:

25² = x² + y²

We are also given that the angle between x and y is 41 degrees. We can use trigonometry to find the value of y. The sine function gives us the ratio of the opposite side to the hypotenuse, so we can write:

sin(41) = y/25

Therefore, y = 25 * sin(41). Now that we have the values of x and y, we can substitute them in the equation derived from the Pythagorean theorem:

25² = x² + (25 * sin(41))²

Solving for x, we get:

x = √(25²- (25 * sin(41))²)

Using a calculator, we get that sin(41) = 0.661437827766148.

Now, we can substitute this value in the equation:

x = √(25² - (25 * sin(41))²)

x = √(25² - (25 * 0.661437827766148)²)

x = √(25² - (16.0359050108801)²)

x = √(625 - 256.132749101278)

x = √(368.867250898722)

x = 19.10

Hence, The value of x is approximately 19.10

To learn more about Triangle from given link.

brainly.com/question/2773823

#SPJ1

The interval for which the rocket's height is increasing is 0 to 1 second.

The graph shows the way a toy rocket changes its height once it is launched. In general, it can be seen the height increases for some seconds and then the height decreases.

To calculate the interval let's find out the second or minute at which the rocket loses height.

0 - 1 second (from this moment the rocket loses height)

Based on this, it can be concluded the interval is 0-1 seconds.

Learn more about intervals https://brainly.com/question/30486507

#SPJ1

The units of water the friends used in one month is 820 units.

The total units of water used as read by the meter = 789 units + 820 units

= 1609 units

Therefore, the friends used a total of 820 units of water.

Complete question:

A water meter shows how many units of water Riya and her friends use.

Riya reads the meter when they move in. It shows 789 units.

She reads the meter again after one month. It reads 820 units.

How many units of water did the friends use in one month?

Read more on total units:

https://brainly.com/question/26007201

#SPJ1

Answer:

              The area of the quadrilateral is C: 12 square feet.

Step-by-step explanation:

               In the photo, the quadrilateral is divided into two triangles, both having a base length of 4 feet and a height of 3 feet. Therefore, we can find the area of the entire quadrilateral by adding the areas of the two triangles together. Since the triangles have a base length of 4 feet and a height of 3 feet, their individual areas will be [tex]4*3*\frac{1}{2} =12*\frac{1}{2} = 6[/tex] square feet. As there are two triangles, we need to multiply the area of one triangle by 2 to get the total area of the quadrilateral, which would be [tex]6 * 2=12[/tex] square feet. Hence, we can conclude that the correct answer will be C.

Have a great day! Feel free to let me know if you have any more questions :)

Answer:

This system of equations can be solved using substitution or elimination methods.

Using substitution, we can solve for one of the variables in one of the equations and substitute that expression into the other equation.

Solving for x in the second equation:

x + 3y = 1

x = 1 - 3y

Substituting this expression for x into the first equation:

-4(1 - 3y) - 15y = -10

Expanding and solving for y:

-4 + 12y - 15y = -10

12y - 4 = -10

12y = -6

y = -1/2

Now that we know y = -1/2, we can substitute this value back into the expression for x:

x = 1 - 3(-1/2) = 1 + 3/2 = 7/2

So the solution to the system of equations is (7/2, -1/2).

Checking the solution in both equations:

-4(7/2) - 15(-1/2) = -4(7/2) + 15/

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

make sure the y axis doesnt repeat

Answer:

a).2x-6-5x-12x. this is answer

The solution that gives the maximum profit for the linear optimization question is presented as follows;

A maximum profit of $840 can be earned by investing;

$3,000 in stock A

$6,000 in stock B

$7,000 in stock C

Linear programming is a optimization technique that helps in determining the maximizing or minimizing parameters of linear functions.

The parameters in the question, obtained from a similar question obtained online includes;

The amount available to be invested = $16,000

The expected returns for stock A = 4%

The expected return for stock B = 5%

Expected returns for stock C = 6%

Amount to be invested in each stock ≥ $1,000

Amount to be invested in stock C ≤ $7,000

Amount invested in C ≤ 4 × Amount invested in stock A

Amount invested in stock B ≤ 2 × Amount invested in stock A

Let x represent the amount invested in stock A, let y represent the amount invested in stock B therefore;

The amount invested in stock C = 16,000 - x - y

16,000 - x - y ≥ 1000...(1)

16,000 - x - y ≤ 7000...(2)

16,000 - x - y ≤ 4·x...(3)

Therefore, we get;

- y ≥ 1000 - 16,000 = -15000 + x

-y ≥ -15000 + x

16,000 - x - y ≤ 7000

16,000 - x - y ≤ 4·x

-y ≤ 4·x + x = 5·x - 16,000

-y ≤ 5·x - 16,000  

The vertices of the feasible regions on the graph of the inequalities are;

(5,000, 10,000), (3,000, 6,000), (8,000, 1,000), and (14,000, 1,000)

The profit function is;

Profit = 0.04·x + 0.05·y + 0.06·(16000 - x - y)

Plugging in the value of the vertices of the feasible region in the profit function, we get;

Point (5,000, 10,000)

Profit = 0.04 × 5000 + 0.05 × 10000 + 0.06 × (16000 - 5000 - 10000) = 760

Point (3,000, 6,000)

Profit = 0.04 × 3000 + 0.05 × 6000 + 0.06 × (16000 - 3000 - 6000) = 840

Point (8,000, 1,000)

Profit = 0.04 × 8000 + 0.05 × 1000 + 0.06 × (16000 - 8000 - 1000) = 790

(14,000, 1,000)

Profit = 0.04 × 14000 + 0.05 × 1000 + 0.06 × (16000 - 14000 - 1000) = 670

Therefore, the maximum profit of $840 is earned by investing $3,000 in stock A and $6,000 in stock B which indicates that the investment in stock C is $16,000 - $3,000 - $6,000 = $7,000

Learn more on linear optimization here: https://brainly.com/question/29849894

#SPJ1

The amount of protein in Peanut butter is 209.5g.

percentage, a relative value indicating hundredth parts of any quantity.

We have to find the amount of protein in  838g of peanut butter.

Contents of peanut butter: 35%

Carbohydrates - 25%

Protein - 40% Fat

Now 25% of protein in 838g.

25/100×838

0.25×838

209.5 g of protein in peanut butter

Hence, 209.5 g of protein in peanut butter

To learn more on Percentage click:

https://brainly.com/question/28269290

#SPJ1

The two provided payments of $17,000 and $3,300 due in 1 year and 2 years, respectively, would be replaced by two equal payments of $2,287.87 made in 6 months and 5 years.

To solve this problem, we need to find two equal payments that would replace the two given payments, given the time and interest rate. We can use the present value formula to calculate these payments:

PV = C / (1 + r)^n

Where

PV is the present value,  

C is the future value of the payment,

r is the interest rate per compounding period, and

n is the number of compounding periods.

For the first payment of $17,000 due in 1 year, its present value in 6 months can be calculated as:

PV1 = 17,000 / (1 + 0.08/4)^(2*2) = $14,785.28

For the second payment of $3,300 due in 2 years, its present value in 5 years can be calculated as:

PV2 = 3,300 / (1 + 0.08/4)^(4*2) = $2,424.67

To find the equal payments that would replace these two payments, we can use the annuity formula:

PMT = PV / [(1 - (1 + r)^(-n)) / r]

Where

PMT is the equal payment,

PV is the present value,

r is the interest rate per compounding period, and

n is the number of compounding periods.

For the two payments to be made in 6 months and 5 years, respectively, the total number of compounding periods is

4*2.5 = 10.

The equal payment can be calculated as follows:

PMT = (PV1 + PV2) / [(1 - (1 + 0.08/4)^(-10)) / (0.08/4)] = $2,287.87

Therefore, two equal payments of $2,287.87 made in 6 months and 5 years would replace the two given payments of $17,000 and $3,300 due in 1 year and 2 years, respectively.

Learn more about present value at:

https://brainly.com/question/30390056

#SPJ1

Answer:

Second Option  :  21

Step-by-step explanation:

At 1080 ml per day for 7 days, the patient would have to ingest 1080 x 7 = 7,560 ml

Since the can capacity is given in oz we have to convert both values to the same units

1 ml = 0.033814 fl oz

Therefore 7,560 ml ≡ 7,560 ml x 0.033814 fl oz

= 255.634 oz

Since each can holds 12 oz, the number of cans = 255.634/12

= 21.3

From the answer choices, the closest to this value is Second  Option : 21 cans

The next number in this sequence is 63, which is the result of multiplying the previous number (39) by 2 and then adding 6.

Answer: 70˚

Step-by-step explanation:

Goal: find the other angles in the triangle and subtract them from 180 to find x:

180 - 105 = 75˚

the other angle is 35˚, (alternate interior angles).

.: x = 180 - 75 - 35 = 70˚

Answer:

no

Step-by-step explanation:

squares sides are  all equal

rectangle only have 2 side alike

There are 2(3/16) cups of shredded cheese on each pizza.

A fraction is written in the form of a numerator and a denominator where the denominator is greater that the numerator.

Example: 1/2, 1/3 is a fraction.

We have,

Large pizza = 1(1/4) cups of sauce

Now,

1(3/4) of the sauce = shredded cheese

The amount of shredded cheese.

= 1(3/4) x 1(1/4)

= 7/4 x 5/4

= 35/16

= 2(3/16)

Thus,

The amount of shredded cheese is 2(3/16).

Learn more about fractions here:

https://brainly.com/question/24370499

#SPJ9

The two sequences have the same number (4) in the same position (third)

From the question, we have the following parameters that can be used in our computation:

Using the above as a guide, we have

Sequence 1: 16, 8, 4, 2, 1.....

Sequence 2: 1, 2, 4, 8, 16.....

The number 4 is in the same position for the two sequences

Read more about sequence at

https://brainly.com/question/29431864

#SPJ1

Answer:

50 + 5x^2 + 4x.

Step-by-step explanation:

To find the sum of the expressions, we need to simplify each expression first and then add them up.

10 + 3x represents the first expression.

25 - 4x + 2x^2 represents the second expression. By simplifying this expression, we get 25 + 2x^2 - 4x.

3x^2 - 5x represents the third expression.

-x^2 + 2x + 15 represents the fourth expression.

Adding all four expressions gives us:

10 + 3x + 25 + 2x^2 - 4x + 3x^2 - 5x - x^2 + 2x + 15

By combining like terms, we get:

10 + 5x^2 + 4x + 25 + 15

The final simplified sum is:

50 + 5x^2 + 4x.

The limits lim x→ −4 f(x) is 5

The method is substitution method

From the question, we have the following parameters that can be used in our computation:

−5x − 15 ≤ f(x) ≤ x² + 3x + 1

The limits is given as

lim x→ −4 f(x)

By direct substitution, we have

−5(-4) − 15 ≤ f(x) ≤ (-4)² + 3(-4) + 1

Evaluate the exponents and the products

20 − 15 ≤ f(x) ≤ 16 - 12 + 1

Evaluate the difference

5 ≤ f(x) ≤ 5

This means that

f(x) = 5

So, we have

lim x→ −4 f(x) = 5

The method used is the direct substitution method

Read more about derivative at

https://brainly.com/question/25081524

#SPJ1