"An air traffic controller observes two airplanes approaching the airport. The displacement from the control tower to plane 1 is given by the vector A⃗ , which has a magnitude of 220 km and points in a direction 32 ∘ north of west. The displacement from the control tower to plane 2 is given by the vector B⃗ , which has a magnitude of 140 km and points 65 ∘ east of north.
Sketch the vectors A⃗ , B⃗ , and D⃗ =A⃗ −B⃗ . Notice that D⃗ is the displacement from plane 2 to plane 1. Draw the vectors with their tails at the dot. The orientation of your vectors will be graded. The exact length of you"
Answers
Ax= (-220km)cos32
Ay= (220km)sin32
Bx= (140km)cos65
By=(140km)sin65
Careful: The angle here is given with respect to the North (y), not the East (x).
You can find the magnitude and direction of vector C by basing on my solution!
I hope my guide has come to your help. Have a nice day ahead and may God bless you always!
Sketch vectors A and B based on their descriptions. To find D = A - B, make B go in the opposite direction (namely, -B), put it tip to tail with A, and then vector D is from tail of A to tip of -B.
Explanation:To answer this, we need to sketch the two vectors - vector A which represents the displacement of plane 1 from the control tower, and vector B which represents the displacement of plane 2 from the control tower. Vector A has a magnitude of 220 km and points 32 degrees north of west. This can be sketched as a line of certain length angling upwards from directly west. Vector B is 140 km in magnitude and angles 65 degrees east of north, thus it can be drawn shorter than Vector A and leaning more towards east from north.
Vector D = A - B is the displacement from plane 2 to plane 1. It represents the direction you would need to go if you were at plane 2 and wanted to get directly to plane 1. To find D, rearrange the equation to D = A + (-B). -B is just the B vector in the opposite direction. After making the B vector go in the opposite direction, place it tip to tail with A and the result from tail of A to tip of -B is vector D. Hence, the vectors would be sketched with their tails at the same point and their heads indicating the direction they point towards.
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Related Questions
If ON = 5x – 4, LM = 4x + 7, NM = x – 7 and OL = 2y – 6, find the values of x and y for which LMNO must be a parallelogram. The diagram is not to scale. ...?
Answers
Opposite sides of parallelogram LMNO must be equal. By setting the equations for opposite sides equal and solving, we find x = 11 and y = 5.
Explanation:To determine the values of x and y for which LMNO is a parallelogram, we can use the properties of a parallelogram which state that opposite sides are equal in length. Since ON and LM are opposite sides, as well as OL and MN, we set their equations equal to each other:
ON = LM means 5x - 4 = 4x + 7.OL = NM means 2y - 6 = x - 7.Solving the first equation gives us x = 11. Substituting x = 11 in the second equation gives 2y - 6 = 4, which simplifies to y = 5. Therefore, the values are x = 11 and y = 5 for LMNO to be a parallelogram.
How much less would a 25 year old male pay for a $50,000 policy of 20 y life insurance @ $5.84 per $1000, than a straight life policy @ $15.66 per $1000?
Answers
A 25-year-old male would pay $491 less for a $50,000 policy of 20-year life insurance at $5.84 per $1,000, than for a straight life policy at $15.66 per $1,000. This is calculated by first determining the total cost of each policy and then finding the difference between the two.
Explanation:To calculate the cost difference between the 20-year life policy and the straight life policy, we first need to calculate the cost of each policy. The cost of the policies is given per $1,000, and the policies provided are worth a total of $50,000.
The 20-year life policy costs $5.84 per $1,000. Therefore, we calculate 50 (as $50,000 divided by $1,000 gives 50) multiplied by $5.84, which equals to $292. The straight life policy costs $15.66 per $1,000. Therefore, we calculate 50 multiplied by $15.66, which equals to $783.
To find out how much less a 25-year-old male would pay for the 20-year policy than the straight life policy, we subtract the cost of the 20-year policy from the cost of the straight life policy: $783 - $292 = $491.
So, a 25-year-old male would pay $491 less for a $50,000 20-year policy than a straight life policy.
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What is the measure of ∠XYZ
Answers
The measure of angle ∠XYZ is 66°.
Given:
∠W + ∠X = ∠XYZ (Sum of opposite interior angles is equal to the exterior angle)
Let's solve for x:
2x + 12 + 2x + 14 = 5x + 16
4x + 26 = 5x + 16
26 - 16 = 5x - 4x
10 = x
Now substitute the value of x into the equation for ∠XYZ:
∠XYZ = 5x + 16
∠XYZ = 5 * 10 + 16
∠XYZ = 50 + 16
∠XYZ = 66°
Therefore, the measure of ∠XYZ is 66°.
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In the diagram below, KL = 12 and LM = 8. Which additional facts would guarantee that JKLM is a parallelogram? Check all that apply.
Answers
1 plus 1/4 equals what??
Answers
The difference between 6 thirty-sixes and 4 thirty-sixes?
Answers
Which would be equal to 72.
2•36 = 72
The ballpark made a total of $15,000 from ticket sales at Wednesday's game. The ballpark charges $20 for each adult ticket and $10 for each child's ticket. They sold 3 times as many children's tickets as adult tickets. Write a system of equations that can be used to determine the number of adult and child tickets sold.
Answers
To determine the number of adult and child tickets sold, we can set up a system of equations based on the given information. By solving the system of equations, we find that the number of adult tickets sold is 300, and the number of children's tickets sold is 900.
Explanation:Let's assume that the number of adult tickets sold is represented by 'x'.
Since the number of children's tickets sold is three times the number of adult tickets, the number of children's tickets sold can be represented as '3x'.
The total revenue from ticket sales is $15,000, so we can create the following equation:
20x + 10(3x) = 15,000
Simplifying this equation, we get:
20x + 30x = 15,000
Combining like terms, we have:
50x = 15,000
Dividing both sides by 50, we find:
x = 300
So, the number of adult tickets sold is 300, and the number of children's tickets sold is 3 times that, which is 900.
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MULTIPLE CHOICE PLEASE HELP FAST!!!!!!!
in one study it was found that the correlation coefficient between two variables is -0.32. which statement is true?
A. There is a weak positive association between the variables
B. There is a weak negative association between the variable
C. There is a strong positive association between the variable
D. There is a strong negative association between the variable
A study of several cities shows a positive correlation between the percent of people biking to work and that percent of people spending their vacation time at home.
Which statement is most likely true?
A. Bike riding makes people want to vacation at home
B. Vacationing makes people want to rife their bikes
C. The correlation is due to a third variable: cost of milk
D. The correlation is due to a third variable: cost of gas
Answers
Answer:
Just took the test and got an 100% so the answers are in fact,
in one study it was found that the correlation coefficient between two variables is -0.32. which statement is true?
B. There is a weak negative association between the variable
A study of several cities shows a positive correlation between the percent of people biking to work and the percent of people spending their vacation time at home.
Which statement is most likely true?
A. Bike riding makes people want to vacation at home
Have a wonderful day if you need any other questions from this test let me know!!!!!!!
Final answer:
The correct answer for the correlation coefficient of -0.32 is B. There is a weak negative association.
For the correlation between biking and vacationing at home, the likely third variable is cost of gas, choice D: The correlation is due to a third variable: cost of gas
Explanation:
The correlation coefficient measures the strength and direction of the relationship between two variables. In this case, the correlation coefficient is -0.32, which indicates a weak negative association between the variables. A negative correlation means that as one variable increases, the other variable tends to decrease. So, option B - There is a weak negative association between the variables - is true.
For the second question, based on the information given, it is most likely that option D - The correlation is due to a third variable: cost of gas - is true. This means that the positive correlation between the percent of people biking to work and the percent of people spending their vacation time at home is likely influenced by the cost of gas as a third variable.
The figure below shows a trapezoid, ABCD, having side AB parallel to side DC. The diagonals AC and BD intersect at point O.
If the length of AO is three times the length of CO, the length of BO is
one-third the length of AC
one-third the length of AB
three times the length of DO
three times the length of DC
Answers
Answer:
Length of BO is three times the length of DO.
Step-by-step explanation:
In trapezoid ABCD, [tex]CD\ ||\ AB[/tex]
In ΔCDO and ΔABO,
[tex]m\angle CDO=m\angle ABO[/tex] (Alternate interior angles)[tex]m\angle DCO=m\angle BAO[/tex] (Alternate interior angles)So, [tex]\Delta CDO\sim \Delta ABO[/tex] according to Angle-Angle similarity.
Therefore, the ratio of corresponding sides will be same.
[tex]\Rightarrow \dfrac{OD}{OB}=\dfrac{OC}{OA}[/tex]
[tex]\Rightarrow \dfrac{OD}{OB}=\dfrac{OC}{3\cdot OC}[/tex]
[tex]\Rightarrow \dfrac{OD}{OB}=\dfrac{1}{3}[/tex]
[tex]\Rightarrow OB=3\cdot OD[/tex]
what is 234/78 I need help
Answers
what is a another was to write (3 x 1,000) (3 x 10) (3 x 1/100) (3 x 1/1000)
Answers
In forming a contract, the “meeting of the minds” is _____. a. an agreement between all parties involved in the contract of the details of the contract. b. a formal meeting of the parties involved in a contract that may or may not result in a signed agreement. c. a phrase used to describe a verbal contract or a contract made without signatures from the parties involved. d. a mental exercise used by a person involved in a contract to try to guess the contract requests of the other parties and offer a compromise
Answers
Answer: (a) an agreement between all parties involved in the contract.
Step-by-step explanation: While forming a contract, we generally use the phrase "meeting of the minds" , which implies that both the parties which are involved in the contract agree to the terms and conditions mentioned in the contract and are aware of the commitments made by each of the parties. Out of the four given options, only option (a) is acceptable, because the other three do not match with our requirement.
Thus, the correct option is (a).
An agreement between all parties involved in the contract. The correct option is A.
What is a “meeting of the minds”?While forming a contract, we generally use the phrase "meeting of the minds", which implies that both the parties which are involved in the contract agree to the terms and conditions mentioned in the contract and are aware of the commitments made by each of the parties. Out of the four given options, only option (a) is acceptable, because the other three do not match with our requirements.
Therefore, an agreement between all parties involved in the contract. The correct option is A.
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Please check answer. Will Upvote.
Evaluate the function rule for the given value.
y = 15 • 3x for x = –3
Is the answer -135?
Answers
Y = 15 • 3(-3)
Y = 15 • (-9)
Y = -135
Answer: Yes
Step-by-step explanation:
Hi, to answer this question we have to substitute x =-3 on the function given, and solve for the variable y.
y = 15 • 3x
Replacing the value of the variable x by -3:
y = 15 • 3(-3)
Multiplying
y = 15 .-9
y = -135
It is correct, the answer is y= -135
Feel free to ask for more if needed or if you did not understand something.
what is x+2+x^2+2
what is x+2+x^2+2
what is x+2+x^2+2
Answers
x + x^2 + 4
If you simplify the expression, your answer would look like this:
x^2 + x + 4
Answer: x^2 + x + 4
Step-by-step explanation:
You factor the expression to x + x^2 +4
Then you simplify to x^2 + x +4
How do you solve this problem
58=(2/3)w
Answers
calculated a = 8³³ ÷ [4³² × 2³⁴ (2⁵ × 2²⁰)⁵ ÷ (16 × 2²³) (7⁵ ÷ 7⁵- 1)³² × 4]b = [(11 - 0¹¹) × (3³-3²) 1²⁰²⁰] × (3²-2³) - 3² × 2.
Answers
a=-8b=15
a=15
-8b=15
divide by -8
b=-15/8
a=15
b=-15/8
Which is an equation in point-slope form for the given point and slope? point: (–2, 4); slope: 5 y – 4 = 5(x – 2) y – 4 = 5(x 2) y 4 = 5x – 10 y 4 = 5(x 2)
Answers
y - 4 = 5( x + 2 )
In a group of 10 batteries, 3 are dead. You choose 2 batteries at random.
Create a probability model for the number of good batteries.
Answers
The probability model for the number of good batteries when selecting 2 out of 10 with 3 dead is calculated as combinations of selecting good and dead batteries for each scenario. The probabilities are always divided by the total ways of drawing 2 from 10.
Explanation:This question is a typical problem related to probability. Firstly, we need to identify the number of ways we can draw 2 batteries randomly from this given set. We know there are 10 batteries in total with 3 dead ones. That leaves us with 7 good batteries.
Assuming 'X' is the number of good batteries we could select when drawing two batteries at random, 'X' could be 0, 1, or 2. Here are the three possible cases:
Both batteries are good (X = 2): The number of ways to select 2 batteries from 7 is combination of 7 by 2, denoted as C(7, 2). One battery is good and one is not (X = 1): The number of ways for this case can be calculated as the combination of picking 1 good battery from 7 and 1 dead battery from 3, denoted as C(7, 1)*C(3, 1). None of the batteries are good (X = 0): The number of ways for this case can be calculated as the combination of picking 2 dead batteries from 3, denoted as C(3, 2).To find out the probability of each scenario, we would have to divide by the total number of ways of drawing 2 batteries from 10, which equals to C(10, 2).
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Solve for x: 3(x + 1) = −2(x − 1) + 6
A. 1
B. 4
C. 5
D. 25
Answers
3x+3=-2x+8
5x=5
x=1
Thus, A would be the answer.
Answer:
Correct option is:
A. 1
Step-by-step explanation:
3(x + 1) = −2(x − 1) + 6
⇒ 3x+3= -2x+2+6
⇒ 3x+3= -2x+8
⇒ 3x+2x=8-3
⇒ 5x=5
dividing both sides by 5
⇒ x=1
Hence, the correct option is:
A. 1
Angle θ lies in the second quadrant, and sin θ = 3/5
Answers
-3/4 tan
Answer:
sin θ [tex]=\frac{3}{5}[/tex]
It is given that , Angle θ lies in the second quadrant.
In the right triangle, Perpendicular =3 units, and Hypotenuse = 5 Units
As, sinθ is positive in second Quadrant also.That is , sin(π-θ )=sin θ
Also, [tex]sin(\frac{\pi}{2}-\Theta)=cos\Theta[/tex]
[tex]sin (\Theta) = 3/5\\\\ (\Theta) =sin^{-1} \frac{3}{5} {\text{or}} (\Theta) =\pi -sin^{-1} \frac{3}{5}\\\\cos(\frac{\pi}{2}-\Theta)= \frac{3}{5}\\\\ \frac{\pi}{2}-\Theta=cos^{-1}[\frac{3}{5}]\\\\ \Theta= \frac{\pi}{2}-cos^{-1}[\frac{3}{5}][/tex]
So, [tex]\pi-\Theta= \frac{\pi}{2}+cos^{-1}\frac{3}{5}, {\text{or}}\pi -sin^{-1} \frac{3}{5}[/tex]
are values of theta which lies in second quadrant.
general admission to the americanmuseum of natural history is $19. if a group of 125 students visits the museum how much will the group's tickets cost
Answers
Charlene is knitting a baby blanket. She wants its width, w, to be at least half its length, l. She estimates that she has enough yarn to put fringe around the blanket, as long as the perimeter of the blanket is no more than 180 inches. The system of inequalities shown represents the width of the blanket in inches, w, and the length in inches, l.
w ≥ 0.5l
2l + 2w ≤ 180
Answers
Answer:
The length of the blanket should be less than or equal to 60 inches.
The width should be greater than or equal to 30 inches.
Step-by-step explanation:
Let the length of the blanket be = l
Let the width of the blanket be = w
Charlene wants the width, w, to be at least half its length, l. This can be shown as :
[tex]w\geq 0.5l[/tex]
She estimates that she has enough yarn to put fringe around the blanket, as long as the perimeter of the blanket is no more than 180 inches.
This can be shown as :
[tex]2l+2w\leq 180[/tex]
[tex]2l+2(0.5l) \leq 180[/tex]
[tex]2l+1l \leq 180[/tex]
[tex]3l \leq 180[/tex]
[tex]l\leq 30[/tex]
So, we get length of the blanket should be less than or equal to 60 inches.
And the width should be greater than or equal to 30 inches.
What is the lcm of 6,15?
Answers
Use the three steps to solve the problem.
A "Local" train leaves a station and runs at an average rate of 35 mph. An hour and a half later an "Express" train leaves the station and travels at an average rate of 56 mph on a parallel track. How many hours after it starts will the Express overtake the Local?
Answers
Step 1. Express distances (d1 and d2, d1 = d2 = d) using the formula for the speed v = d/t
Step 2. Make the system of equations.
Step 3. Solve the system of equations and express t2
Step 1.
Local train parameters:
rate: v1 = 35 mph
time: t1
distance: d
v1 = d/t1
d = v1 * t1 = 35*t1
Express train parameters:
rate: v2 = 56 mph
time: t2 = t1 - 1.5 h (because it is leaves hour and a half later then the local)
distance: d
v2 = d/t2
d = v2 * t2 = 56*(t1 - 1.5)
Step 2. Make the system of equations:
d = 35*t
d = 56*(t - 1.5)
Step 3. Solve the system of equations by using substitution method and calculate t2:
35t = 56(t1 - 1.5)
35t = 56t1 - 56*1.5
35t = 56t1 - 84
84 = 56t1 - 35t1
84 = 21t1
t1 = 84/21
t1 = 4
t2 = t1 - 1.5
t2 = 4 - 1.5
t2 = 2.5 h
Write log3 6 as a logarithm of base 2.
1) (log2)3/(log2)6
2) (log2)6/(log2)3
3) (log3)2/(log6)2
4) (log6)2/ (log3)2 ...?
Answers
Use the change-of-base formula: [tex]log_a(x)= \frac{log_b(x)}{log_b(a)} [/tex]
So, if we want to write log3(6) as a logarithm of base 2, in these example a = 3, x = 6, b = 2:
[tex]log_3(6)= \frac{log_2(6)}{log_2(3)}[/tex]
The correct expression for log3 6 as a logarithm of base 2 is option 1) (log₂ 3) / (log₂ 6).
To express log₃ 6 as a logarithm of base 2, we can use the change of base formula. The change of base formula states that logb x = (logc x) / (logc b), where c is any positive value other than 1.
Applying the change of base formula to log3 6:
log₃ 6 = (log₂ 6) / (log₂ 3)
Therefore, the correct expression for log3 6 as a logarithm of base 2 is option 1) (log₂ 3) / (log₂ 6).
To calculate it properly, we need to find the decimal approximation of this expression:
Using the appropriate logarithmic functions, we have:
(log₂ 3) / (log₂ 6) ≈ 1.58496 / 2.58496 ≈ 0.6124
Thus, log₃ 6 as a logarithm of base 2 is approximately 0.6124.
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Use the graph to determine and interpret the solution. A 4 cm bean plant grows at a rate of 1/2cm per week. A 5.5 cm flower grows at a rate of 1/4cm per week. If h is the height of the plant in centimeters and t is the number of weeks, then the system of equations is:
h = 1/2t + 4
h = 1/4t + 5.5
The solution to the system,___?___
, means that the plants will both be ___?___ centimeters tall after__?___weeks.
Answers
1/2t - 1/4t = 5.5 - 4
2/4t - 1/4t = 1.5
1/4t = 1.5
t = 1.5 x 4
t = 6
h = 1/2t + 4
h = 1/2(6) + 4
h = 3 + 4
h = 7
solution is (7,6)
means that the plants will both be 7 cm tall after 6 weeks
The solution of the system is h =7 and t = 6 means that the plants will both be 7 centimeters tall after 6 weeks.
Given that
A 4 cm bean plant grows at a rate of 1/2cm per week.
A 5.5 cm flower grows at a rate of 1/4cm per week.
If h is the height of the plant in centimeters and t is the number of weeks, then the system of equations is:
h = 1/2t + 4
h = 1/4t + 5.5
According to the question
The solution of the system of equation is;
h = 1/2t + 4
h = 1/4t + 5.5
Substitute the value of h from equation 1 in equation 2
[tex]\rm h = \dfrac{1}{4}+5.5\\\\\dfrac{1}{2}t +4 = \dfrac{1}{4}t +5.5\\\\\dfrac{1}{2}t-\dfrac{1}{4}t = 5.5-4\\\\\dfrac{2t-t}{4} = 1.5\\\\\dfrac{t}{4} = 1.5\\\\t = 4\times 1.5\\\\t = 6[/tex]
Substitute the value of t in equation 1
[tex]\rm h = \dfrac{1}{2}\times 6+4\\\\h = 3+4\\\\h = 7[/tex]
Hence, The solution of the system is h =7 and t = 6 means that the plants will both be 7 centimeters tall after 6 weeks.
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Which of the following sets represents the range of the function shown?
{(–3, 4), (5, 11), (9, –1), (10, 13)}
{–3, 5, 9, 10}
{–1, 4, 11, 13}
{(4, –3), (11, 5), (–1, 9), (13, 10)}
{–3, –1, 4, 5, 9, 10, 11, 13}
Answers
The function is:
{ ( - 3 , 4 ) , ( 5, 11 ) , ( 9 , - 1 ) , ( 10, 13 ) }
Answer:
The range of the function is B ) { - 1, 4, 11, 13 }
If John makes $20 an hour, how long will it take him to make $140?
120 hours
70 hours
7 hours
160 hours
Answers
For $140, it would be: 140/20 = 7 hours.
So, option C is your final answer.
Hope this helps!
You invest $5,000 in a savings account that earns 6% interest each year.
A. How much money do you have in your savings account after the first year?
B. How much money do you have in your savings account after the second year?
Answers
B. Multiply the new amount, or $5300 by .06, and add it back to $5300 to get the total after 2 years. This is $5618.
A. $5300
B. $5618
After the first year, with an initial investment of $5,000 and an annual interest rate of 6%, the total amount in the savings account is $5,300. After the second year, the total amount in the account increases to $5,618.
Explanation:You are investing $5,000 in a savings account with an annual interest rate of 6%. The amount of interest you earn each year is calculated using the formula: principal amount *(interest rate/100).
A. After the first year, you would have:
Interest = $5,000 * (6/100) = $300
Therefore, the total amount in the savings account after one year is $5,000 + $300 = $5,300.
B. For the second year, we apply the same formula to the updated balance from the first year:
Interest = $5,300 * (6/100) = $318
Therefore, the total amount in the savings account after two years is $5,300 + $318 = $5,618.
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What is meant by "transposing a term"?
Answers
terms are separated by + and - signs.
Example: solve 2x+3=9 2x+3-3=9-3 (subtract 3 from both sides) 2x=9-3 (the 3 has been TRANSPOSED to the RHS) 2x=6 x=3