airplane leaves City A and flies 142 km due north to City B. It then turns through an angle of 57° and flies 108 km to City C. What angle 8 with respect to
due north could the pilot have used to fly directly from City A to City C? See the figure below.
City
108 km
Carry your intermediate computations to at least four decimal places.
Round your answer to the nearest tenth of a degree.

Airplane Leaves City A And Flies 142 Km Due North To City B. It Then Turns Through An Angle Of 57 And

Answers

Answer 1

Answer:

  24.3°

Step-by-step explanation:

A suitable calculator can add the vectors directly. (See attached.) In this calculation, bearing angles are measured clockwise from north, so the initial vector has an associated angle of 0 degrees.

__

We can find the angle of interest by considering the distances north and east that city C is from city B. The relevant trig functions are ...

  Sin = Opposite/Hypotenuse

  Cos = Adjacent/Hypotenuse

  Tan = Opposite/Adjacent

__

location of C relative to B

The direct distance from B to C is the hypotenuse of a right triangle whose right angle is at point "D" due north of B and due west of C. The distances of interest are ...

  sin(57°) = DC/BC

  DC = BC·sin(57°) = (108 km)sin(57°) ≈ 90.5764 km

  cos(57°) = BD/BC

  BD = BC·cos(57°) = (108 km)cos(57°) ≈ 58.8210 km

__

angle of C from A

And the angle of interest can be found from ...

  tan(θ) = DC/AD = (90.5764 km)/(142 km +58.8210 km) ≈ 0.451031

  θ = arctan(0.451031) ≈ 24.3°

The pilot could have flown on a bearing of 24.3° to get to city C directly from city A.

_____

Additional comment

We can ignore the fact that bearing angles are measured CW from north, while conventional angles on a Cartesian plane are measured CCW from "east" (+x). Each coordinate system can be mapped to the other by flipping the map over along a NE-SW line (y=x), aligning the +x axis with north and the +y axis with east.

The diagram we used in working this problem is shown in the second attachment.

Airplane Leaves City A And Flies 142 Km Due North To City B. It Then Turns Through An Angle Of 57 And
Airplane Leaves City A And Flies 142 Km Due North To City B. It Then Turns Through An Angle Of 57 And

Related Questions

f(x) = x². What is g(x)?

A. g(x) = -x² – 3
B. g(x) = -3x²
C. g(x) = x² - 3
D. g(x) = -x²​

Answers

Answer:

A

Step-by-step explanation:

because g(x) is the opposite of f(x) minus three steps

3) Mr. Brust is addicted to Red Bull and has decided that he wants to plaster his room at school with Red Bull cans.
He measures a can and finds it is 6.5 inches tall and has a diameter of about 2.5 inches. He decided that he will
just recycle the top and bottom since there is no Red Bull logo on them and just use the sides. How many cans will
Mr. Brust need to cover his wall that is 20 feet long and 9 feet tall?

Answers

Mr. Brust needs 427 cans to cover the wall of dimensions 20 feet long and 9 feet tall.

What is area of rectangle?

Area of rectangle is the product of its sides

i.e., Area of rectangle = length  x breadth

What is area of circle?

The area of a circle is pi times the radius squared (A = π r²).

What is circumference of circle?

The circumference of a circle is defined as the linear distance around it.

( C= 2πr)

The can of red bull is in shape of cylinder.

If we open the cylinder it will have two circular surfaces( at bottom and top) and one rectangular sheet.

Like the given figure given.

The can is 6.5 inches tall and has a diameter of about 2.5 inches.

 

It shows that the two circle will have the diameter 2.5 inches.

d= 2.5 inch

 = 0.208 ft

radius, r= [tex]\frac{d}{2}[/tex]

r= [tex]\frac{0.208}{2}[/tex]

r= 0.104 ft

To get the length of the rectangle , we have to calculate the circumference of the circle.

Circumference of the circle be,

= 2πr

= 2 x 3.14 x 0.104

= 0.653 ft

The rectangular sheet will have,

length=  0.653 ft, breadth= 6.5 inches = 0.541 ft

Now, area of rectangular sheet be,

      = length x breadth

      = 0.653 x 0.541

      =[tex]0.3532 ft^{2}[/tex]

Area of 2 circle( top and bottom of can) be,

       = 2 x π[tex]r^{2}[/tex]

       = 2 x 3.14 x 0.104 x 0.104

       = 6.28 x 0.010816

       = 0.0679 [tex]ft^{2}[/tex]

Total area of can be,

        = Area of rectangular sheet + Area of 2 circle( top and bottom of can)

        = 0.3532 + 0.0679

        = 0.4211 [tex]ft^{2}[/tex]

Now, we have the wall of dimensions

length= 9 ft, breadth= 20 ft

Area of wall be,

= length x breadth

=9 x 20

= 180 [tex]ft^{2}[/tex]

Number of cans required to cover the whole wall be,

         =[tex]\frac{area \;of\; wall}{area \;of\; can}[/tex]

         =[tex]\frac{180}{0.4211}[/tex]

         = 427.45 cans

         ≈ 428 cans

Learn more about the concept of area here:

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A gas station is 9 miles away. How far is the gas station in kilometers? Use the following conversion: 1 mile is 1.6 kilometers.

Answers

1 mile = 1.6 kilometers

Multiply total miles by 1.6

9 miles x 1.6 = 14.4 kilometers

Answer: 14.4 kilometers

Answer:

14.4 kilometres

Step-by-step explanation:

Given that,

→ 1 mile = 1.6 kilometres

By using this information 9 miles will be,

→ 9 miles × 1.6 km

→ [ 14.4 km ]

Thus, the gas station is 14.4 km away.

Find the area of the rhombus shown.

Answers

Answer:

I believe the answer is D.96

Step-by-step explanation:

well all rhombuses can be turned into a square or rectangle. and this looks like the sides are really close. just a guess don't get mad if it's wrong

please help meee :)))))))

Answers

Answer:

B, C, D

Step-by-step explanation:

B, C, D

Answer:

A.12

Step-by-step explanation:

x²>100

square root both sides

it becomes x>10

x>10

from the options the only number greater than 10 is 12

Therefore the answer is A. 12

amantha went shopping and decided to purchase a necklace for 35% off the regular price of $44. If Samantha buys the necklace today, she will save an additional 5%. Find the sale price of the necklace with both discounts. just need answer will give brainliest giving a lot of points will five star

Answers

Answer:

$27.17

Step-by-step explanation:

Regular price of necklace = $44

If a discount of 35% is applied, then the new price of the necklace will be 65% of the regular price, as 100% - 35% = 65%

⇒ 65% of $44

= 0.65 × $44

= $28.60

If a second discount of 5% is then applied, the final price of the necklace will be 95% of the sale price, as 100% - 5% = 95%

⇒ 95% of $28.60

= 0.95 × $28.60

= $27.17

Therefore:

The sale price with a 35% discount is $28.60

The sale price with an additional 5% discount is $27.17

[tex]\large{\underline{\underline{\pmb{\sf{\color{yellow}{Answer:}}}}}}[/tex]

Given :-

The regular price of necklace = $44

Discount on necklace = 35%

Additional save from necklace = 5%

Solution :-

First we have to found the prize of necklace that Amantha had bought at 35% discount

To find this, there is a formula

[tex]new \: price = real \: price - (discount \: percentage \times real \: price) [/tex]

Now we will put our value in this formula

[tex] = 44 - ( \frac{35}{100} \times 44) \\ = 44 - ( \frac{7}{20} \times 44) \\ = 44 - ( \frac{7}{10} \times 22) \\ = 44 - \frac{154}{10} \\ = 44 - 15.4 \\ = 28.6 \:[/tex]

Now will deduct the additional discount from this price by using same formula

[tex] = 28.6 - ( \frac{5}{100} \times 28.6) \\ = 28.6 - ( \frac{1}{20} \times \frac{286}{10} ) \\ = 28.6 - ( \frac{1}{10} \times \frac{143}{10} ) \\ = 28.6 - 1.43 \\ = 27.17[/tex]

Result :-

She spend $27.17 on buying the necklace

Which one is it?

Btw this is a Math Question.

Answers

Answer:

$1.5

Step-by-step explanation:

9÷6= 1.5

1.5× 1 = 1.5

The answer is $1.8
This is because if 5kg equals $9.
So we have to find out what 1kg is equaled to and to get from 5kg to 1kg, we have to divide by 5. We have to divide $9 by 5 as well to get the price. And 9 divided by 5 is $1.8.
This is just how ratio works.
You can also lay it out like this:
5kg : $9
⬇️(➗by 5)
1kg : $1.8

Hope this helps!
Please give Brainliest!

If I'm right, none of answer choices are correct. I used substitution and factoring, but couldn't find a solution. I just want anyone's conformation. Thanks!

Answers

Answer:

Yes, none of these are correct.

Step-by-step explanation:

We can easily see that none of these are correct just by looking at the second piece of criteria and substituting x and y for their respective numbers.

Kaitlynn needs 3 pounds of fruit for a salad.
She already has 34 pound of apples and 13 pound of grapes.

How many more pounds of fruit does she need to buy?

Answers

If you mean .34 lbs and .13lbs, she would need 2.53
If you meant .34 and 1.3 lbs , she would need 1.36
If actually mean 34 lbs and 13lbs , Kaitlynn has way more than 3 lbs

i need help on part c !!!

Answers

The volume of a cone with diameter d (and hence radius d/2) and height h is

[tex]V_{\rm cone} = \dfrac\pi3 \left(\dfrac d2\right)^2 h[/tex]

so each scoop holds

[tex]V = \dfrac\pi3 \left(\dfrac{1\,\rm in}2\right)^2 \left(2\,\mathrm{in}\right) = \dfrac\pi6 \, \mathrm{in}^3[/tex]

of coffee.

The volume of a cylinder with base diameter d and height h is

[tex]V_{\rm cylinder} = \pi\left(\dfrac d2\right)^2 h[/tex]

so the coffee can contains

[tex]W = \pi \left(\dfrac{6 \, \rm in}2\right)^2 \left(6\dfrac14 \, \mathrm{in}\right) = 2025\pi \,\mathrm{in}^3[/tex]

of coffee.

One full scoop then uses up [tex]\frac VW = \frac1{12,150}[/tex] of the total amount of coffee in the can, so you can make 12,150 cups of coffee.

What is the measure of central angle COB?


What is the measure circumscribed angle A>

Answers

m<COB=2m<CDB

m<COB

2(30°)60°

Our answer is 60°

<A+60=180<A=120°

find the values of a and b such that
x2-4x+9=(x+a)2+b

Answers

Answer:

x = [tex]-\frac{1}{2}a-\frac{1}{4}b+\frac{9}{4}[/tex]

Step-by-step explanation:

Determine the solution to the system of equations graphed below and explain your reasoning in complete sentences.

Answers

Answer:

(0, - 3 )

Step-by-step explanation:

the solution to the system is at the point of intersection of the graphs.

the graphs intersect at (0, - 3 )

then solution is (0, - 3 )

Answer:

(0, -3)

Step-by-step explanation:

The solution is where the two lines intersect. The two lines intersect at the point (0, -3).

I hope it helped you!

Find the area of the parallelogram please.​

Answers

Answer: 76.8 mi²

Step-by-step explanation:

   The area of a parallelogram can be found be multiplying the base times the height.

       A = B * H

       A = 9.6 * 8

       A = 76.8 mi²

   Confused as to why this works? We use the same formula that we do for a rectangle because the "extra triangle" on the left can be moved to fill the empty space on the right. This then gives us a normal rectangle, which allows us to solve for the area

Explanation -:

In this question we are provided with the base and height of a parallelogram and we are asked to calculate the area of the parallelogram using the formula.

It is given that the base is 9.6 mi and height is 8 mi.

We know,

[tex] \small\boxed{ \sf {Area_{(parallelogram)} = B × H}}[/tex]

Where,

B stand for BaseH stand for Height

Substituting the values we get

[tex] \small\sf{ Area_{(parallelogram)} = (9.6 × 8) mi} = 76.8 {mi}^{2} [/tex]

Hence the area of the parallelogram is 76.8 mi².

4/9 + 2/5 =
pls i really need the answer asap

Answers

Answer:

38/45

Step-by-step explanation:

Answer:

38/45

Step-by-step explanation:

Hope it helps

DP
In a board game, students draw a number, do not replace it, and then draw a
second number. Determine the probability of each event occurring.

Answers

The probability of drawing a two and another 2 is 1/72

What is probability?

Probability is the likelihood or chance that an event will occur

Since the total number in the board game is 9, hence the probability of drawing a 2 will be 1/9

The probability of drawing the second 2 will be 1/8

Pr(drawing a 2, then drawing another 2) = 1/9 * 1/8

Pr(drawing a 2, then drawing another 2) = 1/72

Hence the probability of drawing a two and another 2 is 1/72

learn more on probability here: https://brainly.com/question/24756209

Simplify Each Radical Expression. Leave in radical form. (Do not use decimals.)



√(7) + √(28) – √(700)

Answers

[tex]\sqrt 7 +\sqrt{28} - \sqrt{700}\\\\\\=\sqrt 7 +\sqrt{4 \times 7} - \sqrt{100 \times 7}\\\\\\=\sqrt 7 + 2\sqrt 7 - 10\sqrt 7\\\\\\=-7\sqrt 7[/tex]

what is the measure of OAC

Answers

Answer:

27°

Step-by-step explanation:

A tangent meets a radius at 90°Angles in a trainable sum to 180°180 - 90 - 63 = 27°

Answer:

∠OAC = 27°

Step-by-step explanation:

The radius of the circle is perpendicular to the tangent line.

Therefore, ∠ACO = 90°

The interior angles of a triangle sum to 180°

⇒ ∠OAC + ∠ACO ∠ COA = 180°

⇒ ∠OAC + 90° + 63° = 180°

⇒ ∠OAC + 153° = 180°

⇒ ∠OAC = 180° - 153°

⇒ ∠OAC = 27°

Could someone help me please. I need it fast

Answers

Answer:

10.7 cm

Step-by-step explanation:

V = (4/3)πr³

5128.8467 = (4/3)(3.14)r³

1225.043 = r³

r = 10.7

u/5 + 6 = 2

what is the value of u?
a. -28
b. 20
с. 40
d. -20

Answers

Answer:

D. -20

Step-by-step explanation:

[tex]\frac{u}{5} +6=2[/tex]

[tex]\frac{u}{5} =-4[/tex]

[tex]u=-4(5)[/tex]

[tex]u=-20[/tex]

Hope this helps!

Answer:

D.

Step-by-step explanation:

u / 5 + 6 = 2

-20 / 5 + 6 = 2

-4 + 6 = 2

2 = 2


can anyone help me? no links

Answers

Answer:

Step-by-step explanation:

Sum: addition

Difference: subtraction

Product: multiplication

Number                    Sum                    Difference                    Product

1, 4                         1 + 4 = 5                     4 - 1 = 3                       1 * 4 = 4

2, 8                       2 + 8 = 10                   8 - 2 = 6                      2 * 8 = 16

Hope this helps!

An ice cream cone has a diameter of 12.8 cm and a slant height of 9 cm. Find the lateral surface area of the cone. Use 3.14 for π. Round your answer to the nearest tenth.

Answers

Answer:

about 181 or 180.96

Step-by-step explanation:

π·6.4·6.332+6.42≈180.9555

ratio tables you need 3 sticks of butter for every 24 giant cookies cookie you make
fill out the table

Answers

Answer:

Sticks of butter: 2 Number of cookies: 40

Step-by-step explanation:

the ratio begins with 3:24. if you were to divide 3 by 24 it could be 1:8 **2**x 8 =16 so sticks of butter would be 2. 5x8=40.

Stan has made a $125.30 monthly deposit into an account that pays 1.5% interest, compounded monthly, for 35 years. he would now like to draw a monthly salary from the account. determine the amount that stan can withdraw each month for 20 years, if he plans on not having anything in the account at the end of the 20 year period and no future deposits are made to the account. a. $69,242.49 b. $69,159.05 c. $333.29 d. $333.71

Answers

The annuity of the monthly deposit into an account that pays 1.5% interest, compounded monthly, for 35 years is $333.71

What is annuity?

An annuity is a series of payments made at equal period of time.

future value = annuity x [(1 + i)ⁿ - 1] / i

annuity = $125.30

i = 1.5% / 12 = 0.00125

n = 35 years x 12 months = 420

future value = $125.30 x [(1 + 0.00125)⁴²⁰ - 1] / 0.00125

future value = $69,156.049 ≈ $69,156.05

annuity = [i x (present value)] / [1 - (1 + i)⁻ⁿ]

i = 1.5% / 12 = 0.00125

n = 20 years x 12 months = 240

present value = $69,156.05

annuity = (0.00125 x $69,156.05) / [1 - (1 + 0.00125)⁻²⁴⁰]

annuity = $86.45 / 0.25904

= $333.71

Learn more about annuity;

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Find the volume of the cone shown as a decimal rounded to the nearest tenth. 22m 12m

Answers

Answer:

829.4 m³

Step-by-step explanation:

Volume of cone:

        diameter = 12 m

                     r = 12 ÷ 2 = 6 m

                     h = 22 m

[tex]\sf \boxed{Volume \ of \ cone =\dfrac{1}{3} \pi r^2h}[/tex]

                           [tex]= \dfrac{1}{3}*\dfrac{22}{7}*6*6*22\\\\=\dfrac{22}{7}*2*6*22\\\\=\dfrac{5808}{7}\\\\= 829.4 \ m^3[/tex]

does the equation 2x+ 3y=-6, 4x+6y=-12 have infinetley many solutions

Answers

Answer:

Yes it has infinity of solutions.

Step-by-step explanation:

If you plug in certain numbers it will make the statements true.

Answer:

Infinitely many solutions.

Step-by-step explanation:

Let's solve your system by substitution.

2x+3y=−6;4x+6y=−12

Step: Solve2x+3y=−6for x:

2x+3y=−6

2x+3y+−3y=−6+−3y(Add -3y to both sides)

2x=−3y−6

2x/2 = −3y−6/2

(Divide both sides by 2)

x= −3/2y−3

Step: Substitute −3/2y−3 for x in 4x+6y=−12:

4x+6y=−12 4(−3/2y−3)+6y=−12

−12=−12(Simplify both sides of the equation)

−12+12=−12+12(Add 12 to both sides)

0=0

Answer:

Infinitely many solutions.


Francie tried to shade all the multiples of 8 on the hundred chart.
1
2 3
4 5
6
7 8 9 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50
51 52 53 54 55 56 57 58 59 60
61 62 63 64 65 66 67 68 69 70
71 72 73 74 75 76 77 78 79 80
81 82 83 84 85 86 87 88 89 90
91 92 93 94 95 96 97 98 99 100
What mistake did Francie make?

Answers

The multiples of 8 from 1 to 100 are: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, and 96.

How to calculate the multiples of the number 8?

To calculate the multiples of 8 we must multiply 8 by any number and the result will be a multiple of 8.

To identify the multiples of 8 that are between the number 1 and 100, we must multiply the number 8 by the number sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 .

So we will know properly are the multiples of 8 that are between 1 and 100 as shown below:

8 × 1 = 88 × 2 = 168 × 3 = 248 × 4 = 328 × 5 = 408 × 6 = 488 × 7 = 568 × 8 = 648 × 9 = 728 × 10 = 808 × 11 = 888 × 12 = 96

Learn more about multiplication in: https://brainly.com/question/23536361

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You are asked to create a 5 LETTER password, how many different passwords can you create if.
a) All letters are capitals and repetition is allowed
b) All letters can be either capitals or lower case, but repetition is
not allowed.

Detailed explanations are most welcome.

Answers

We will see that the number of different combinations for each case are:

a)  11,881,376b)  311,875,200

How many passwords can we make?

We have 5 selections for each password, we need to find the number of options for each one of these selections.

a) Here we can use only capitals an we can repeat, so for each selection (each letter), we have 26 options.

The total number of combinations will be equal to the product between the numbers of options:

C = 26*26*26*26*26 = 11,881,376

b)Now we can use either capitals or lower case, but we can't repeat. (Here I assume that A is different than a, so we can't use A two times, but we could use A and a).

Then we have 26*2 = 52 options.

For the first letter, we have 52 options.

For the second letter, we have 51 options (because one letter was already used).

For the third letter, we have 50 options, and so on.

The total number of combinations will be:

C = 52*51*50*49*48 = 311,875,200

If you want to learn more about combinations, you can read:

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The radius of a circle is 2 yards. What is the circle's area? r=2 yd Use 3.14 for ​.

Answers

Answer:

12.56

Step-by-step explanation:

pi(r)^2

3.14(2)^2

12.56

A cylinder has a base radius of 3 centimeters and a height of 15 centimeters.
What is its volume in cubic centimeters, to the nearest tenths place?

Answers

Answer: 424.12

Step-by-step explanation:

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