A farmer has a field in the shape of a triangle. The farmer has asked the manufacturing class at your school to build a metal fence for his farm. From one vertex, it is 435 m to the second vertex and 656 m to the third vertex. The angle between the lines of sight to the second and third vertices is 49°. Calculate how much fencing he would need to enclose his entire field.

Answers

Answer 1

Answer:

Fencing required = 1586 m

Step-by-step explanation:

The given statements can be thought of a triangle [tex]\triangle ABC[/tex] as shown in the diagram attached.

A be the 1st vertex, B be the 2nd vertex and C be the 3rd vertex.

Distance between 1st and 2nd vertex, AB = 435 m

Distance between 2nd and 3rd vertex, AC = 656 m

[tex]\angle A =49^\circ[/tex]

To find:

Fencing required for the triangular field.

Solution:

Here, we know two sides of a triangle and the angle between them.

To find the fencing or perimeter of the triangle, we need the third side.

Let us use Cosine Rule to find the third side.

Formula for cosine rule:

[tex]cos A = \dfrac{b^{2}+c^{2}-a^{2}}{2bc}[/tex]

Where  

a is the side opposite to [tex]\angle A[/tex]

b is the side opposite to [tex]\angle B[/tex]

c is the side opposite to [tex]\angle C[/tex]

[tex]\Rightarrow cos 49^\circ = \dfrac{656^{2}+435^{2}-BC^{2}}{2\times 435\times 656}\\\Rightarrow BC^2 = 430336+189225-2 (435)(656)cos49^\circ\\\Rightarrow BC^2 = 430336+189225-570720\times cos49^\circ\\\Rightarrow BC^2 =619561-570720\times cos49^\circ\\\Rightarrow BC \approx 495\ m[/tex]

Perimeter of the triangle = Sum of three sides = AB + BC + AC

Perimeter of the triangle = 435 + 495 + 656 = 1586 m

Fencing required = 1586 m

A Farmer Has A Field In The Shape Of A Triangle. The Farmer Has Asked The Manufacturing Class At Your

Related Questions

Can someone answer these three questions? Thank you

Answers

Answer:

D, B, B

Step-by-step explanation:

Question 1: D

We need to solve for x.

z = 2π * (x / y)¹/²

z = 2π * (x¹/² / y¹/²)

z = 2π * (√x / √y)

z = √x * 2π / √y

√x = √y * (z / 2π)

x = y(z /2π)²

Question 2: B

(x⁵ + x⁴) / (x³ + x²)

= x⁴(x + 1) / x²(x + 1)

= x⁴ / x² = x⁽⁴⁻²⁾ =

Question 3: B

Let's try out A. Substituting p = 1, q = 1:

√1 * √1 = √(1 + 1)

1 * 1 = √2

1 = √2 FALSE

Let's try B. Substituting p = 2, q = 2:

√2 * √2 = √(2 + 2)

√4 = √4 TRUE so the answer is B.

A shop has a 3 for 2 offer on chocolate bars The normal price of a chocolate bar is 72p Sian gets 3 chocolate bars from the shop using this offer How much does she spend Give your answer in pounds

Answers

Answer:

1.44 pounds

Step-by-step explanation:

From the above question, we are told that:

The shop has 3 for 2 offer on chocolate bars going on .This means a customer can buy 2 chocolates get 1 free, for the price of 2 chocolates, a customer can get 3 chocolates.

If the price of 1 chocolate bar = 72p

2 chocolate bars =

72p × 2

= 144p

Hence, Sian spends 144p

We are asked to convert our answer to pounds

The symbol p represent pence in money form

Hence,

100p(pence) = 1 pound

144p(pence) = x

100p × x = 144p × 1

x = 144p/100p

x = 1.44 pounds

Therefore, Sian spends 1.44 pounds

Find the area of each figure below. Round to the nearest hundredth.​

Answers

Answer:

Area of rectangle=9×17=153 SQ.ft

Area of semi-circle=π9'2/2

Area of traingle=(1/2)×7×9=31.5

The area of the composite figure is 325.17 square feet

How to determine the area of the figure?

The figure is a composite figure with the following shapes

RectangleTriangleSemicircle

The dimension of the shapes are:

Semicircle: Radius = 9 ftRectangle: Length = 9 ft; Width = (26 - 9)ftTriangle: Base = 9ft; Height =(26 -9 - 7) ft

The area of each shape is:

Semicircle

A = 0.5πr²

This gives

A = 0.5 * 3.14 *9^2 = 127.17

Triangle

A = 0.5 * base* height

This gives

A = 0.5 * 9 * (26 -9 - 7) = 45

Rectangle

A = Length * Width

This gives

A = 9 * (26 - 9) = 153

The area of the figure is the sum of the areas of the individual shapes.

So, we have:

Total = 127.17 + 45 + 153

Evaluate

Total = 325.17

Hence, the area of the composite figure is 325.17 square feet

Read more about areas at:

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A book sold 35,300 copies in its first month of release. Suppose this represents 6.3 of the numbers sold to date. How many copies have been sold to date?

Answers

Answer:

560,317.460

Step-by-step explanation:

The computation of copies that have been sold is shown below:-

we assume the number of copies is x

So, the number of copies in the first month is

= [tex]\frac{6.3}{100} x[/tex]

As per the situation the number of sold copies is 35,300 so the equation will be

[tex]\frac{6.3}{100} x = 35,300[/tex]

[tex]6.3x = 35,300\times 100[/tex]

[tex]x = \frac{35,300\times 100}{6.3}[/tex]

after solving the above equation we will get the number of copied that have been sold to date

= 560,317.460

In Ms. Ford's classroom 13 students are able to fit comfortably into a 5 by 5 square.
Use this value to estimate the size of a crowd that is 10 feet deep on both sides of the street standing
along a 1-mile section of a parade route.

Answers

Answer:

Estimate of crowd is 27456.

Step-by-step explanation:

Given that a square of 5 by 5 can have 13 students.

Area of a square = [tex]side^2[/tex] = 25

Area of 25 can have 13 students.

Now, it is given that 10 feet square are used for crowd.

Area of square of side 10 feet  = 100

So, area of 100 can have 13 [tex]\times[/tex] 4 = 52 people from crowd

Now, it is given that the parade route is 1 mile long.

1 mile = 5280 feet

1 mile = 528 [tex]\times[/tex] 10 feet

It means that there are 528 number of such squares on the 1 mile section of the parade route.

Kindly refer to the attached image as well.

So, number of people or the estimate of the size of crowd is:

528 [tex]\times[/tex] 52 = 27456

In an interview last month, the rebels estimated that a few hundred of their fighters had been trained over the past two years, and they received close to two million dollars worth of ammunition, guns, and heavy artillery during the same time period.
A) had been trained over the past two years, and they
B) were trained over the past two years, and they had
C) were trained over the past two years and they have
D) had been trained over the past two years and that they had
E) had been trained over the past two years and that they have

Answers

Answer:

D) had been trained over the past two years and that they had

Step-by-step explanation:

In the context, the sentence speaks of something that happened in the past, so 'had been' is required and also it speaks of parallelism of events, as an estimation is being made so,  parallelism should be maintained.

Hence, option (D) satisfies the two requirements. And eliminate option A, B, C and E.

Thus, (D) is correct.

Suppose the population of a town is 8,200 and is growing 4% each year, what is the population expected to be in 10 years

Answers

Answer:

12,138 people

Step-by-step explanation:

Create an equation using the basic exponential growth equation:

y = a(1 + r)^t, where a is the initial amount, r is the growth rate as a decimal, and t is the amount of time in years.

Plug in the values we know

y = a(1 + r)^t

y = 8200(1 + 0.04)^10

y = 8200(1.04)^10

= 12,138 people

a wall of a building is 36 inches wide. Fourteen inches is concrete 12 inches is brick and 10 inches limestone what fraction of the wall is limestone?

Answers

Answer:

10/36 or 5/18 is the fraction of the wall that is limestone. In percentage form it would 27.77..% or could be rounded to 27.8%

Check whether the numbers are divisible by 4:
(i) 23408
(ii) 100246
(iii) 34972
(iv)150126
(v) 58724

Answers

Step-by-step explanation:

a no. is divisible by 4 if the last two digits are a mutiple of 4

is divisble because of 08is not divisible because of 46is divisible 72not divisible 26divisible 24Just divide the last two no. by 4 to find the divisibility

Answer:

(i), (iii), (v).

Step-by-step explanation:

If a number is divisible by 4 then its last 2 digits are divisible by 4.

For example 23408 is because 08  is divisible by 4.

Bob thought of an even and odd number, multiplies the numbers together, added 6, divided by 5, and subtracted 3 to give an answer of 1. What was the odd number he started with?

Answers

Answer:

  7

Step-by-step explanation:

Working backward, we can find Bob's initial product.

We subtracted 3 to get 1, so we had 4.

We divided by 5 to get 4, so we had 20.

We added 6 to get 20, so we had 14

After Bob multiplied the two numbers together, he had 14. We know that 14 is the product of 2 and 7. The odd number is 7.

Inverse operation of f(x)=x/2+1

Answers

Answer:

the inverse is f(x) = 2x - 2

Step-by-step explanation:

Inverse operation in this equation is basically switching the x and y:

y = x/2 + 1

x = y/2 +1

x - 1 = y/2

2x - 2 = y

In the Venn diagram, the blue circle represents when p is true, and the orange represents when q is true. A conjunction is true in region . A disjunction is true in region(s) . A disjunction is false in region(s) .

Answers

Answer:

A conjunction is true in region  

✔ B  <--- Answer

A disjunction is true in region(s)  

✔ A, B, and C  <--- Answer

A disjunction is false in region(s)  

✔ D  <--- Answer

Step-by-step explanation:

I took the assaignment aswell

A conjunction is true in the region  

✔ B  ← Answer

A disjunction is true in the region(s)  

✔ A, B, and C  ← Answer

A disjunction is false in the region(s)  

✔ D  ← Answer

What is a Venn diagram?

A Venn diagram uses overlapping circles or other shapes to illustrate the logical relationships between two or more sets of items. Often, they serve to graphically organize things, highlighting how the items are similar and different.

Learn more about the Venn diagram here: brainly.com/question/2099071

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G. Write the equation of the line in slope-intercept form.
1. The line containing (3,1) and is perpendicular to the y=-x+1.
2. The line passes through (-1,7) and is parallel to the 5y = 4x + 5.

Answers

Answer:

y= x-2y = 4/5 x+39/5

Step-by-step explanation:

1.

[tex](3,1) and\:perpendicular \:to \: y = -x+1\\(3,1) = (x,y)\\m = -1\\In\: perpendicularism ; m_2 = \frac{-1}{m_1} \\m_2 = \frac{-1}{-1} \\m_2 =1\\y = mx+c\\1 = 1(3) +c\\1=3+c\\1-3=c\\-2 =c\\Substitute \:new \:values\:into\\y =mx+c\\y = 1x -2\\y = x-2[/tex]

2.

[tex](-1,7) =(x_1,y_1)\\\\5y = 4x+5\\\\Write\:in\:y=mx+c\:form\\\frac{5y}{5} = \frac{4}{5} x + \frac{5}{5} \\y = \frac{4}{5} x +1\\m = \frac{4}{5} \\\\y -y_1=m(x-x_1)\\y-7=\frac{4}{5} (x -(-1)\\y -7 = 4/5(x+1)\\y -7 = 4/5x +4/5\\\\y = \frac{4}{5} x+\frac{4}{5} +7\\\\y = \frac{4}{5} x +39/5[/tex]

Describe the opposite of a positive integer, the opposite of a negative integer, and the opposite of zero.​

Answers

Whole numbers greater than zero are called positive integers. Whole numbers less than zero are called negative integers. ... Two integers are opposites if they are each the same distance away from zero, but on opposite sides of the number line.

What is the distance between the two numbers on this number line? -13 and 28

Answers

Answer:

41

Step-by-step explanation:

Points are:

-13 and 28

Distance between these points:

28 - (-13) = 28+13 = 41

Answer is 41

Answer:

[tex]\Huge \boxed{41}[/tex]

Step-by-step explanation:

Easy way to find the distance between the two numbers is by taking the sum of the absolute values of these numbers.

[tex]|-13| + |28|[/tex]

The absolute value tells the distance of the numbers from zero.

Solving for absolute value.

[tex]13+28[/tex]

Adding the numbers.

[tex]41[/tex]

The distance between -13 and 28 on the number line is 41.

can someone help me please

Answers

Answer:

(4x + 5)(x² + 25)

Step-by-step explanation:

Given

4x³ + 5x² + 100x + 125 ( factor the first/second and third/fourth terms )

= x²(4x + 5) + 25(4x + 5) ← factor out (4x + 5) from each term

= (4x + 5)(x² + 25)

Questions #3 - 10 Record the LETTER OF THE FRACTION card that is equivalent to the decimal representation below. Not all cards will be used. HINT: Use your calculator to convert all fraction cards to decimals BEFORE you solve #3 - #10.

#3 *
10 points
Captionless Image
d
#4 *
10 points
Captionless Image

This is a required question
#5 *
10 points
Captionless Image
e
#6 *
10 points
Captionless Image
g
#7 *
10 points
Captionless Image

This is a required question
#8 *
10 points
Captionless Image
#9 *
10 points
Captionless Image
#10 *
10 points
Captionless Image

Answers

Answer:

Step-by-step explanation:

From science fiction to science fact, there is a concept that suggests that there could be other universes besides our own, where all the choices you made in this life played out in alternate realities. The concept is known as a "parallel universe," and is a facet of the astronomical theory of the multiverse.

Find the area of the shaded figure in square feet. Round to the nearest tenth if
necessary.​

Answers

Answer:

to be honest I'm not sure

In the image below, lines n and mare parallel. What is the measure of angle 4?

a.98
b.82
c.164
d.122
help me asap pls

Answers

I believe it’s a.98
You subtract the 82° from 180, and get 98.

Answer:

a.) 98°

Step-by-step explanation:

Angle 5 and angle 8 (82°) are supplementary angles. This means that their sum will make a straight angle of 180°. Make an equation:

[tex]82+x=180[/tex]

Solve for x, the value of angle 5:

[tex]x=180-82\\\\x=98[/tex]

Angle 5 has a  measure of 98°.

Now we know the measure of angle 5. Angle 4 and angle 5 are alternate interior angles, so they are congruent. Therefore, angle 4 has a measure of 98°.

:Done

Simplify.
6y-2y







Help please

Answers

Answer:

4y

Step-by-step explanation:

youd have to combine like terms..

Answer:

4y

Step-by-step explanation;

since they have something in common which is y,it is possible to subtract.we would be focusing more on the numbers than letters.The like term which is y just paves a way for these numbers to be subtracted.Hence, 6y -2y= 4y

or you can do it this way also

they have something in common which is y,so we factorise

y(6-2)

y(4)

hence y(4) also means 4 x y= 4y

Find the measure of b+d. A. 74 B. 90 C. 32 D. 58

Answers

Answer:

B. 90°

Step-by-step explanation:

Quadrilateral inscribed in the circle with center O is a cyclic quadrilateral.

Opposite angles of a cyclic quadrilateral are supplementary.

Therefore,

(b + d) + (32° + 58°) = 180°

b + d + 90° = 180°

b + d = 180° - 90°

b + d = 90°

What is the product? Two-thirds times eight-ninths StartFraction 10 over 27 EndFraction StartFraction 16 over 27 EndFraction Two-thirds Five-sixths

Answers

Answer:

16/27

Step-by-step explanation:

First let's convert this info an equation and then we will solve.

(2/3) * (8/9) = ?

( 2 * 8 ) / ( 3 * 9 ) = ?

( 16 ) / ( 27 ) = ?

16 / 27 = ?

So our fractional answer is 16/27.

In words this would be sixteen over twenty seven.

Cheers.

Answer:

15/9

Step-by-step explanation:

what is the coefficient of the x-term in the expression 4x+5xy-2y

Answers

Answer:

5

Step-by-step explanation:

Mr. and Mrs. Nelson are going to build a new home. They need to have working drawings of their house plans created by a design firm. They will choose between Rock the House Digital Designs and Elegant Home Architects. Rock the House Digital Designs charges $500.00 for the initial consultation with the Nelsons, plus $50.00 for every additional hour of work for the house plans. Elegant Home Architects charge $75.00 per hour for the house plans. Let ℎ represent the number of hours for which Mr. and Mrs. Nelson hire the design firm. Which of the following statements are true? Select all that apply. he expression 50ℎ represents the total charge for Rock the House Digital Designs.
a.The expression 75ℎ represents the total charge for Elegance Home Architects.
b.The expression 500 + 75ℎ + 50ℎ represents the total amount the Nelsons will spend working drawings of their new house plans.
c.If the Nelsons hire the design firm for 15 hours, then Elegance Home Architects will be cheaper.
d.If the Nelsons hire the design firm for 25 hours, then Rock the House Digital Designs will be cheaper.

Answers

Answer:

The correct statements are (a), (c) and (d).

Step-by-step explanation:

The information provided is:

Rock the House Digital Designs charges $500.00 for the initial consultation with the Nelsons plus $50.00 for every additional hour of work for the house plans.Elegant Home Architects charge $75.00 per hour for the house plans.The variable h represent the number of hours for which Mr. and Mrs. Nelson hire the design firm.

The total charge for Elegance Home Architects, if the Nelsons choose them will be:

Total for Elegance = 75 × h = 75h.

Suppose  the Nelsons hire the design firm for 15 hours.

Total for Elegance = 75 × h = 75 × 15 = $1,125

Total for Rock = 500 + (50 × h) = 500 + (50 × 15) = $1,250

So, the  Elegance Home Architects will be cheaper.

Suppose  the Nelsons hire the design firm for 25 hours.

Total for Elegance = 75 × h = 75 × 25 = $1,875

Total for Rock = 500 + (50 × h) = 500 + (50 × 25) = $1,750

So, the Rock the House Digital Designs will be cheaper.

Thus, the correct statements are (a), (c) and (d).

Determine the domain of the function. f as a function of x is equal to the square root of x plus one divided by x plus four times x minus six.

Answers

Answer:

a)  

Step-by-step explanation:

We have been given a function . We are asked to find the domain of our given function.

We can see that our given function is a rational function and numerator of our given function is a square root.

To find the domain of our given function, we will find the number that will make our denominator 0 and the domain of square root function will be the values of x that will make our numerator non-negative.

Undefined points for our given function:

The domain of denominator is all values of x, where x is not equal to negative 4 and positive 6.

Non negative values for radical:

The domain of numerator is all value of x greater than or equal to negative

Upon combining real regions and undefined points for our given function, the domain of our given function will be all values of x greater than or equal to negative 1, where x is not defined for 6.

Therefore, domain of our given function is .

"Construct c=a+b by drawing and calculating the direction and magnitude of c. The direction should be measured from the +x-axis" how do you do this problem?

Answers

Answer:

The question seems to be incomplete, so i will answer in a general way.

Ok, i guess that here we have two vectors:

a = (Ax, Ay) and b = (Bx, By).

Now we have that:

c = a + b = (Ax, Ay) + (Bx, By) =  (Ax + Bx, Ay + By).

Now, to calculate the magnitude of a vector (x, y) we have:

√(x^2 + y^2)

Then the magnitude of c will be:

IcI = √( (Ax + Bx)^2 + (Ay + By)^2)

And for the direction:

First, the direction is already defined by the vector c.

But a more exact (and easy to read) way is:

When we have a vector (x, y).

The angle between this vector and the x-axis is given by:

Tan(θ) = y/x.

Then in the case of c.

Tan(θ) = (Ay + By)/(Ax + Bx)

θ = ATan( (Ay + By)/(Ax + Bx) )

Town B is 6 miles due north of town A, and town C is due east of town A. It is 11 miles from town B to town C. Find the distance from town A to towAn C.

Answers

Answer:

12.53 miles

Step-by-step explanation:

6² + 11² = x²

36 + 121 = x²

157 = x²

x = 12.53 miles

The distance from town A to town C would be; 12.53 miles.

What is a numerical expression?

A numerical expression is an algebraic information stated in the form of numbers and variables that are unknown. Information can is used to generate numerical expressions.

We are given that Town B is 6 miles due north of town A, and town C is due east of town A. It is 11 miles from town B to town C.

Therefore,

6² + 11² = x²

36 + 121 = x²

157 = x²

x = 12.53 miles

Hence, the distance from town A to town C would be; 12.53 miles.

To know more about an expression follow;

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-0.6 irrational or rational ​

Answers

Answer:

Rational

Step-by-step explanation:

If you can write it as a fraction (=ratio), it is rational.

-6/10 = -0.6

Round 7412 to the nearest thousand

Answers

Answer: 7000

Note: 5 and up rounds up. 4 and below rounds down.

4 < 5 so that means we won't need to round up we round down.

7412 = 7000

If we were to round up then the answer would of been 7500.

An underwater canyon begins at 40 feet below sea level and is 105 feet deep. What is the elevation of the bottom of the canyon?

Answers

Answer:

145 ft below sea level

Step-by-step explanation:

40 + 105 = 145

Answer:

145 feet

Step-by-step explanation:

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