Find the magnitude and direction of the following vector.
-AB : A<-1,10> and B(1,-12)

Answers

Answer 1

AB has a magnitude of 9√6 according to estimates.

AB's vector direction is given as Ф = 84.80° (angle which lies in the 4th quadrant with clockwise direction).

What basically does a distance formula mean?

In complex numbers, the distance formula is employed to demonstrate the plane as well as its magnitude. Furthermore, distance formulas can be used to calculate the distance between two planes in three-dimensional and n-dimensional planes.

Now, in response to the given question;

J and K have (-1,10) and (1,-12) coordinates, respectively.

The distance formula for the points A and B is as follows:

AB² = (x₂ - x₁)² + (y₂ - y₁)²

AB = √[(x₂ - x₁)² + (y₂ - y₁)²]

The coordinates for the points A and B's  are-

(x₁,y₁) = (-1,10)   and (x₂,y₂) = (1,-12).

Substituting the given values in the distance formula;

AB = √[(1 + 1)² + (-12 - 10)²]

AB = √[(2)² + (-22)²]

AB = √[4 + 484] = √486

AB  = 9√6 (magnitude of the vector AB)

Estimate this same vector AB's direction now. The direction of a vector is defined by the angle formed by it with a horizontal line.

To determine the direction of a vector, utilize one of the formula given.

tan Ф = Δy/Δx

Where, x = horizontal change

and, y = vertical change

tan Ф = (y₂ - y₁)/(x₂ - x₁)

       = (-12 - 10)/(1 + 1)

tan Ф = -22/(2) = -11

Ф = 84.80°  (angle which lies in the 4th quadrant with clockwise direction).

As a result, this same distance between A and B is discovered to be 9√6 (the same as the magnitude of a given vector AB).

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Related Questions


Bill is planning a circular vegetable garden with a fence around the border. If he can use up to 50 feet of fence, what radius can he use for the garden?
F. 10 G. 9 H. 8 J. 7

Answers

The radius that can he use for the garden is H. 8

What is circumference of circle?

A circle's outside boundary is called the circumference and can be measured, or calculated, by using

Circumference = 2πr

where r is the radius of circle.

Now it is given that,

Length of fence = 50 feet

Circumference of  vegetable garden = 50 feet

Since, Circumference = 2πr

⇒ 2πr = 50

⇒ r = 50/2π

⇒ r = 50/6.28

⇒ r = 7.96

⇒ r ≈ 8 feet

Thus, the radius that can he use for the garden is H. 8

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Compute the average rate of change of the given function over the specified interval. f (x) = x^3, [3, 4]

Answers

Answer:

Use the given functions to set up and simplify

[

3

,

4

]

Step-by-step explanation:

Three more than the product of a number and eight is nine

Answers

The expression for the given condition is: 8n + 3 = 9

What is the number?

Number is a mathematical word that is used to measure various attributes or count items. In essence, it is arithmetic values. Natural numbers, whole numbers, rational or irrational numbers are among the several types of counting numbers.

The supplied condition is three greater than the product of a number, and eight equals nine, according to the query.

So let's suppose that n is the number.

Three is more than the result of a number and eight, according to the question:

The necessary formula will be: 8n + 3 = 9.

Now, n has been computed to be worth: n = 6/8 = 3/4.

As a result, 3/4 is the value of the supposed integer "n."

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Find the missing term of each arithmetic sequence.... 25, 페, 53,...

Answers

The missing 2nd term of the given arithmetic sequence 25, _, 53,...(a₂ = 39).

What is the AP arithmetic progression sequence?

The difference between the two different numerical orders is a fixed number in Arithmetic Progression (AP). Another name for it is Arithmetic Sequence.

We'd come along through a few specific words in AP that were labeled as:

The first term (a)Common difference (d)Term nth (an)The total of first n terms (Sn)

The AP can also be understood in terms of common differences, as shown below.

The operation for reviewing an AP's n-th term is as follows:  an = a + (n − 1) × dThe following is the arithmetic progression sum: Sn = n/2[2a + (n − 1) × d].Common difference 'd' of an AP: d = a2 - a1 = a3 - a2 = a4 - a3 = ......      = an - an-1.

Now, for the given AP;   25, _, 53....

Let the initial term be 'a₁' = 25

Let the second term be 'a₂' = ?

Let the third term be 'a₃' = 53.

The AP must have the same common difference. So,

d =  a₂ - a₁ or d = a₃ - a₂

Equating the common difference to find the 2nd missing term.

a₃ - a₂ = a₂ - a₁

Substitute the given values;

53 - a₂ = a₂ - 25

Bring the variable part on one side.

2a₂ = 53 + 25

a₂ = 78/2

a₂ = 39

Therefore, the 2nd missing value of an AP is found to be 39.

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What are the coordinates of the vertices of the image after a 90-degree counter-clockwise rotation about the origin?

Answers

Answer:

Well, (2,3) is transformed into (-3,2)

(-3,-1) changes into (1,-3)

and (2,-1) changes into (1,2)

Step-by-step explanation:

Smort

How many feet are equivalent to
1|5
mile? (1 mile = 5280 feet)

Answers

Answer:

1056 feet

Step-by-step explanation:

5280/5=1056


Solve each equation. 5-4 t=12

Answers

The solution of the given equation 5-4t = 12 is at t = -7/4.

According to the given question.

We have a linear equation in one variable.

5 - 4t = 12

As we know that, linear equation in one variable is an equation which is expressed in the form of ax+b = 0, where a and b are two integers, and x is a variable and has only one solution.

Thereofre, th esolution for the given equation 5 - 4t = 12 is given by

5 - 4t = 12

⇒ -4t = 12 - 5      (subtracting 5 from both the sides)

⇒ -4t = 7

⇒ -t = 7/4          (dividing both the sides by 4)

⇒ t = -7/4

Hence, the solution of the given equation 5-4t = 12 is at t = -7/4.

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Convert the decimal or whole number to a percent.
1.15 7/8

Answers

Answer:

1.15 is 115%

Step-by-step explanation:

7/8 is 0.875 so it makes it 87.5%

The percentage form of the given number is:

1.15 as a percent is 115%

7/8 as a percent is 187.5%

To convert a decimal to a percent,

we need to multiply it by 100.

So for 1.15,

Multiply it by 100 to get 115%.

To convert a mixed number to a percent,

We have to convert it to an improper fraction first.

To do that, we multiply the denominator by the whole number and add the numerator.

Then we put that answer over the original denominator.

For 7/8, the improper fraction would be,

(8 x 1) + 7 = 15/8.

To convert this to a percentage,

We need to divide the numerator by the denominator and multiply by 100.

So 15/8 as a decimal is 1.875, and when we multiply that by 100 we get 187.5%.

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Using only the values given in the table for the function, f(x) = x3 – 3x – 2, what is the interval of x-values over which the function is decreasing?

Answers

The interval of x-values over which the function is decreasing is ( - 1,1).

What is a polynomial?

In mathematics, a polynomial is an expression that solely uses the operations of multiplication, addition, subtraction, and non-negative integer exponentiation of variables. It is made up of coefficients and indeterminates.

By differentiating the given function, it is possible to find the range of x-values across which the provided function is decreasing: (-1,1).

Given function is , f(x) = x³ – 3x – 2.

The following steps can be used in order to determine the interval in which the given function is decreasing:-

Step 1 - Write the given function.

f(x) = x³ – 3x – 2.

Step 2 - Now, differentiate the above function with respect to 'x'.

F'(x) = 3x² - 3

Step 3 - Now, equate the above expression to zero.

x² = 1

x = 1 or -1

Therefore, the interval of x-values over which the function is decreasing is ( - 1,1).

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Answer:

C

Step-by-step explanation:

took the test


y varies directly with x .If y=(5/3) when x=(3/4), find x when y=(1/2)

Answers

The required value of x is 9 / 40.

What is the constant of proportion?

A constant of proportion is illustrated as the ratio which relates two given quantities with each other in the relationship of proportion. Constant of proportion is also called constant variation, rate of change, and constant ratio.

Solving for the value of y

let k be the constant of proportion

When a quantity varies directly with others, then we have a relation, y = kx      —-- 1

Now, find k for given x = 3 / 4 and y = 5 / 3, we need to put these values in equation 1, i.e.

5 / 3 = k(3 / 4)

k = (5 × 4) / 9

k = 20 / 9

Further calculate x for given y = ½ and constant of proportion = 20/9i.e.

½ = (20 / 9)x

x = 9 / 40

Hence, the required value of x is 9 / 40.

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14. Let f(x) = -3x+4. Find and simplify f(x + 2).

f(x+2) = (Simplify your answer.)

12. Let f(x) = -2x+5. Find f(1/2) simply ur answer

15. Let f = {(4,0),(-4,4),(1,-9) Find f(4).

Answers

Answer:

14.   [tex]-3(x+2)+4[/tex]

12.   [tex]4[/tex]

15.   [tex]0[/tex]

Step-by-step explanation:

Question 14

To find the function in terms of "x+2", simply replace "x" in the original equation with "x+2":

[tex]f(x+2)=-3(x+2)+4[/tex]

Now simplify by distributing the 3:

[tex]f(x+2)=-3x-6+4[/tex]

Finish by adding the constants:

[tex]f(x+2)=-3x-2[/tex]

Question 12

This one follows the same concept! Replace "x" in the original equation with 1/2:

[tex]F(\frac{1}{2})=-2(\frac{1}{2} )+5[/tex]

Simplify:

[tex]f(\frac{1}{2})=-1+5\\f(\frac{1}{2})=4[/tex]

Question 15

For this question, it looks like you are given a set of coordinate pairs in the function. You are asked to find "f(4)". Essentially, you are being asked to find the value of y given 4 as the value of x.

The given coordinate pair (4,0) has 4 as the x value, so the y value when x=4 is 0!

HELP!! I WILL GIVE BRAINLIEST TO THE PERSON WHO ANSWERED IT CORRECTLY AND GAVE A GREAT EXPLANATION!!! PLEASE ANSWER THE QUESTION!! IT IS ALGEBRA AND I AM NO GOOD AT IT!!!





( Hello! I'm bo)red....Can someone talk to me.....anyone...please???

Answers

Answer:

I believe the correct answer would be C.

Step-by-step explanation:

Have a great day! :)

7. Sharmaine travels from Singapore to Thailand.
She exchanges $600 into Thai baht when the exchange rate is $1 = 24 baht.
While in Thailand, she spends 12 538 baht.
On her return, she exchanges the remaining baht into dollars when the exchange rate is $1= 24.5 baht.
How many dollars does she receive?

Answers

Answer:

she receives 76 Dollars


What is the greatest integer solution of |-2 x-5|-3 ≤ 2 ?

Answers

The greatest integer solution = 0

|x| = greater integer function

i.e,. if |x| ≤ 2, then its range is -2≤ x ≤2

We have,

|-2x-5| - 3≤ 2

Now we have to find the value of x

|-2x-5|≤5

-5≤ -2x - 5≤ 5

0 ≤-2x ≤10

-10≤ 2x ≤0

-5≤ x ≤0

Therefore the value of x = -5, -4, -3, -2, -1, 0

so the greatest integer solution = 0

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Simplify the expression.
10-22 / 8-17

Answers

The simplified expression for (10-22 / 8-17) is 4/3 .

The given expression is,

( 10-22 / 8-17 )

First we need to solve the numerator which is (10-22) and on simplifying the numerator we can write,

Numerator = ( 10 - 22 ) = -12                         equation 1

Similarly, now we can proceed to solve the denominator which is (8 - 17) and on simplifying the denominator we write,

Denominator  = (8 - 17) = -9                       equation 2

Now we can substitute the value of numerator and the denominator from equation 1 and equation 2 in the given expression ( 10-22 / 8-17 ) as,

(Numerator / Denominator) = (10-22 / 8-17) = ((-12)/(-9)) = 4/3

The simplified expression for (16-12 / 15-11) is 4/3 .

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The sign in front of the Electric storm roller coaster states that all riders must be at least 54 inches tall to ride. If Andy is 5 feet 8 inches tall, can he ride the Electric Storm? Which law of logic leads you to this conclusion?

Answers

The height of Andy 68 inches is greater than the minimum requirement which is 54 inches. Yes, And can ride.

What is conversion?

Conversion means to convert the same thing into different units.

The sign in front of the Electric storm roller coaster states that all riders must be at least 54 inches tall to ride. If Andy is 5 feet 8 inches tall.

Convert height of Andy into inches only. Then we have

⇒ 5 feet + 8 inches

⇒ 5 x 12 inches + 8 inches

⇒ (60 + 8) inches

⇒ 68 inches

The height of Andy 68 inches is greater than the minimum requirement which is 54 inches. Yes, And can ride.

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If a jar contains 150 peanuts and 60 cashews, what is the approximate probability that a nut selected from the jar at random will be a cashew?
A 0.25
C 0.33
E 0.71
B 0.29
D 0.4

Answers

The probability that a nut selected from the jar at random will be a cashew = 0.29

The correct answer is option (B) 0.29

In this question,

A jar contains 150 peanuts and 60 cashews.

So, the total number of nuts = 150 + 60

                                               = 210

We need to find the probability that a nut selected from the jar at random will be a cashew.

To find the probability we use the formula,

P = number of possible outcomes / total number of outcomes

Let event A: a nut selected from the jar at random is a cashew

n(A) = 60

total number of nuts n(S) = 210

So, the probability that a nut selected from the jar at random will be a cashew,

P(A) = 60/210

P(A) = 0.29

Therefore, the probability that a nut selected from the jar at random will be a cashew = 0.29

The correct answer is option (B) 0.29

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please solve the sum in the question

Answers

Answer:

x² + [tex]\frac{1}{x^2}[/tex] = 5

Step-by-step explanation:

using the identity

(a - b)² = a² + b² - 2ab , then given

(x - [tex]\frac{1}{x}[/tex] ) = [tex]\sqrt{3}[/tex] ( square both sides )

(x - [tex]\frac{1}{x}[/tex] )² = ([tex]\sqrt{3}[/tex] )² , that is using the above identity

x² + [tex]\frac{1}{x^2}[/tex] - 2(x × [tex]\frac{1}{x}[/tex] ) = 3

x² + [tex]\frac{1}{x^2}[/tex] - 2(1) = 3

x² + [tex]\frac{1}{x^2}[/tex] - 2 = 3 ( add 2 to both sides )

x² + [tex]\frac{1}{x^2}[/tex] = 5

[tex]\displaystyle\\Answer:\ x^2+\frac{1}{x^2}=5[/tex]

Step-by-step explanation:

[tex]\displaystyle\\(x-\frac{1}{x} )=\sqrt{3} \\[/tex]

Let's square both parts of the equation:

[tex]\displaystyle\\(x-\frac{1}{x} )^2=(\sqrt{3})^2 \\(x)^2-2*x*\frac{1}{x} +(\frac{1}{x})^2 =3\\x^2-2*1+\frac{1}{x^2}=3\\ x^2-2+\frac{1}{x^2}+2 =3+2\\x^2+\frac{1}{x^2}=5[/tex]

6623 divided by 17? please show work

Answers

the answer is
389 remainder 10
389R10

Answer:

Decimal Form:

389.58823529

Mixed Number Form:

389  [tex]\frac{10}{17}[/tex]

Step-by-step explanation:

[tex]\frac{6623}{17}[/tex]

Decimal Form:

389.58823529

Mixed Number Form:

389  [tex]\frac{10}{17}[/tex]


Right isosceles ΔA B C has hypotenuse length h . DE is a midsegment with length 4 x that is not parallel to the hypotenuse. What is the perimeter of ΔA B C ?

Answers

The perimeter of right isosceles ΔABC with midsegment DE is 16 + 8√2.

If right isosceles ΔABC has hypotenuse length h, then the two other sides are congruent.

side a = side b

Using Pythagorean theorem, c^2 = a^2 + b^2

h^2 = a^2 + b^2      a = b

h^2 = 2a^2

a = h/√2

If DE is a midsegment not parallel to the hypotenuse, then it is a segment that connects the midpoints of one side of a triangle and the hypotenuse. See photo for reference.

ΔABC and ΔADE are similar triangles.

a : b : h = a/2 : 4 : h/2

If a/2 = a/2, then b/2 = 4.

b/2 = 4

b = 8

If a = b, then a = 8.

If a = h/√2, then

8 = h/√2

h = 8√2

Solving for the perimeter,

P = a + b + h

P = 8 + 8 + 8√2

P = 16 + 8√2

P = 27.3137085

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I need the answer and explanation ASAP Complete the perfect square f(x)=x^2+7x+10

Answers

The perfect square equation is f(x) = (x + 7/2)^2 - 9/4

How to complete the perfect square?

The equation of the function is given as

f(x) = x^2 + 7x + 10

Rewrite the equation as

x^2 + 7x + 10 = 0

Subtract 10 from both sides of the equation

So, we have

x^2 + 7x = -10

-----------------------------------------------------------------------

Take the coefficient of x

k = 7

Divide by 2

k/2 = 7/2

Square both sides

(k/2) = 49/4

-----------------------------------------------------------------------

Add 49/4 to both sides of the equation

So, we have

x^2 + 7x + 49/4 = -10 + 49/4

Express as a perfect square

So, we have

(x + 7/2)^2 = -10 + 49/4

Evaluate the sum

So, we have

(x + 7/2)^2 = 9/4

This gives

(x + 7/2)^2 - 9/4 = 0

So, we have

f(x) = (x + 7/2)^2 - 9/4

Hence, the perfect square equation is f(x) = (x + 7/2)^2 - 9/4

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HELP ASP SHOW UR WORK WILL GET BRAINILEAT AND 10 points

Answers

Answer:

x=-16

Step-by-step explanation:

3/4x-4=-16

Add 4 to both sides.

3/4x=-12

Divide 3/4 from both sides.

x=-16

Hope this helps!

Please mark as brainliest if correct!

Have a great day!

Answer:

x = -16

Step-by-step explanation:

What is one over seven raised to the third powerequal to?

one over ten
three over twenty-one
one over three hundred forty-three
three over two thousand four hundred one

Answers

The statement which represents the expression one over seven raised to the third power is Option (C) one over three hundred forty-three is the correct option.

We are given the expression:

one over seven raised to the third power

This can be written as:

(1 / 7) ³

Simplifying and solving the expression by finding the cube of 1 and 7.

1³ = 1

7³ = 343

So, the expression will now become:

(1 / 7) ³ = 1 / 343

which can also be written as:

one over three hundred forty - three

Therefore, option (C) one over three hundred forty-three is the correct option which represents the expression one over seven raised to the third power.

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Round 67.483 to the nearest whole number

Answers

Answer:

67 is the answer

Answer:

67 would be the nearest whole number.

Solve for x. Question 8

Answers

Step-by-step explanation:

Pythagoras :

c² = a² + b²

c is the Hypotenuse (the side opposite of the 90° angle).a and b are the legs of the right-angled triangle.

so,

x² + 12² = (x + 8)² = x² + 16x + 64

144 = 16x + 64

16x = 80

x = 5

How do you solve this equation I struggle with it

Answers

You have to put the equation so people can help

can someone helppppppppppppppppppppppppp

Answers

Answer:

Step-by-step explanation:

p= AB+BC+AC

AB=[tex]\sqrt{(-5-(-5))^2+(4-(-2))^2} =6[/tex]

BC=[tex]\sqrt{(-5-6)^2+(4-(-2))^2} =\sqrt{157}[/tex]

AC=[tex]\sqrt{(6-(-5))^2+(-2-(-2))^2} =11[/tex]

p= 17+[tex]\sqrt{157\\[/tex]


Determine the slope of the line that contains the given points.
G(8,1), H(8,-6)

Answers

The slope of the line that contains the given points G(8,1), H(8,-6) is -1.

It is given in the question that the line contains the points G(8,1) and H(8,-6).

We know that:-

The formula to find the slope of a line that contains points (a,b) and (c,d) is given by:-

m = (d-b)/(c-a)

Here, we have

m = slope of the line

(a,b) = (8,1)

(c,d) = (8,-6)

Hence, putting the values of (a,b) and (c,d) , we get

Slope of the line that contains the given points A(8,1), F(8,-6) is given by:-

(-6-1)/(8-1) = -7/7 = -1

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2w=2w+1 I’m very confused and I don’t know how to answer this

Answers

Answer:

Step-by-step explanation:

2w = 2w + 1

2w - 2w = 1

w(2 - 2) = 1

0w = 1

w = 1/0

w is undefined

4x^2+16x-1

What’s the answer?

Answers

Answer:

Step-by-step explanation:

26x …………………………………………….
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