Erica is participating in a road race. The first part of the race is on a 5.2-mile-long straight road oriented at an angle of 25∘ north of east. The road then turns due north for another 6.0 mi to the finish line.

In miles, what is the straight-line distance from the starting point to the end of the race?

Answers

Answer 1

The distance between the starting point(initial) and the ending point(last) is known as displacement is  9.46miles.

What is displacement?

Displacement is defined as the change in position of an object. It's a vector volume and has a direction and magnitude. It's represented as an arrow that points from the starting position to the final position. For illustration- If an object moves from A position to B, also the object's position changes. Distance is a scalar volume that refers to" how important ground an object has covered" during its stir. Displacement is a vector volume that refers to" how far out of place an object is" it's the object's overall change in position. Displacement is a defense medium that involves an individual transferring negative heartstrings from one person or thing to another.

In the first(1st) part of the race displacement of Erica is

d1 = 5.2 miles at 25(twenty-five) deg North of East

x(ax) and y-component of 1st(first) part of the race will be:

d1 = 5.2*cos 25(twenty five) deg i + 5.2*sin 25(twenty five) deg j

d1 = (4.71 i + 2.20 j) miles (this id d1)

In the second(2nd) part of the race

d2 = 6(six) miles towards north,

So

d2 = (6 j) miles (this is d2)

Now net(accurate) displacement of Erica will be, Using Vector addition(summation):

d = d1(4.71 i + 2.20 j) + d2(6j)

d = (4.71 i + 2.20 j) +(sum) (6 j)

d = 4.71 i +(sum) 8.20 j

So Magnitude of net(accurate) displacement will be:

|d| = [tex]\sqrt{4.71^2+8.20^2}[/tex]

|d| = 9.46 miles(nine.four-six) = distance between starting(initial) point and ending point

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Related Questions

8/36 = /9 what number is missing to equal 9

Answers

Answer:

72

Step-by-step explanation:

I am pretty certain that the answer is 72.

Steps:

[tex]\frac{8}{36}[/tex] [tex]\frac{x}{9}[/tex]

Cross-Multiply and Divide.

8*9 = 72

72 / 36 = 2

2/9 = 0.222222

8/36 = 0.222222

2/9 = 0.2222222

what does 8+100-(7)/1^2 equal

Answers

Answer:

101

Step-by-step explanation:

Help!!
Find the after-tax return to a corporation that buys a share of preferred stock at $49, sells it at year-end at $49, and receives a $4 year-end dividend. The firm is in the 21% tax bracket.

This is what I got so far:

Before-tax:

(49-49)+4 = 4,

4/49 = 0.0816,

After-tax:

0.0816 (1-021) = 0.06448 or 6.45%

Answers

After the tax return percent is 7.43%.

What is a tax return?

A tax return is a form or form filed with a duty authority that reports income, charges, and other material duty information. Tax returns allow taxpayers to calculate their duty liability, schedule duty payments, or request refunds for the remittance of levies. A tax return is the completion of attestation that calculates a reality’s or existent's income earned and the quantum of levies to be paid to the government or government associations or, potentially, back to the taxpayer. Taxation is one of the biggest sources of income for the government.

The tax-return of the corporation will be calculated by providing a 70% of deduction to the preference dividend.

The total amount of preference dividend which will be taxable= (dividend amount*(1-.7)

= (4*.3)= 1.20.

The total amount of tax= (total preference dividend taxable*x tax rate)

= (1.2*.3)=.36

The total after tax amount of Return= (preference dividend-tax)= (4-.36)= 3.64.

There will be no capital gain because there is no change in the price of preference shares.

After tax return=(after tax dividend/purchase price)

= (3.64/49)

= 7.43%.

After the tax return percent is 7.43%.

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Centre of rotation square

Answers

Answer:

Point of intersection of its diagonals

Step-by-step explanation:

guys!! please help me, I’ll give out brainliest just please help it’s my final question and it’s currently 4 in the morning .

(geometry)
what is the perimeter of the rectangle ABCD?

Answers

Answer:

Please disregard

Step-by-step explanation:

At what coordinate would you place point e so that is partitions df in a ratio of 5:3

Answers

we need the graph to answer this question.

find the distance between the two points in simplest radical form. (2,6) and (7,-6)

Answers

Answer:

13

Step-by-step explanation:

Use the distance formula to determine the distance between two points.
√[(x₂ - x₁)² + (y₂ - y₁)²]

A quadratic function is decreasing on (-∞, 3) and increasing on (3, ∞).
Will the vertex be the highest or lowest point on the graph of the parabola?
Explain.

Answers

Greetings from Brasil...

If X grows and Y grows, the function is increasing

If X increases and Y decreases, the function is decreasing

Besides that, according to the statement, we can conclude that the parabola has an upward concavity, that is, a > 0. In this case the vertex will be a minimum point

check the attachments

P.S. - vertex coordinate = (3; 0)

Select all the triangles that have an area of 10 square units:

Answers

The triangles that have an area of 10 square units are triangles A and B

How to determine the triangles that have an area of 10 square units?

The area of a triangle is calculated using

Area = 0.5 * Base * Height

Triangle 1

Base = 5

Height = 4

So, we have

Area = 0.5 * 5 * 4

Area = 10

Triangle 2

Base = 4

Height = 5

So, we have

Area = 0.5 * 5 * 4

Area = 10

Triangle 3

Base = 5

Height = 5

So, we have

Area = 0.5 * 5 * 5

Area = 12.5

Hence, the triangles that have an area of 10 square units are triangles A and B

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Apply it
What is the value of the expression 4(x - y)
when x = 7 and y = 1?
A 26
7
B 29
C 32
D 48
Apply your thinking
Students, write your response!
Pear Deck Interactive Slide
Curriculum Associal Do not remove this bar

Answers

Answer:

USE AIR MATH!!

Step-by-step explanation:

Can someone explain this to me?

What are the values of c for which f has a removable discontinuity?

1 only
5 only
1 and 7 only
1,5, and 7

Answers

Answer:

1 only

Step-by-step explanation:

1 only, as the other points have defined values.

Question
Gabriel and Raj were running a lemonade stand at the local park. They decided to pay their sister to operate the stand. The
following values represent the profit y after a hours of the stand being open.
Using a calculator or statistical software, find the linear regression line for the data.
Enter your answer in the form y = mx +b, with m and b both rounded to two decimal places.
Provide your answer below:
y=x+
[
X
1
2
3
4
5
6
7
y
3.58
5.18
6.24
7.97
7.09
8.31
11.33

Answers

The linear regression equation for the data is given by:

y = 1.08x + 2.76.

How to find the equation of linear regression using a calculator?

To find the equation, we need to insert the points (x,y) in the calculator.

For this problem, the points (x,y) are given as follows:

(1, 3.58), (2, 5.18), (3, 6.24), (4, 7.97), (5, 7.09), (6, 8.31), (7, 11.33).

Inserting these points into a calculator, the linear regression equation for the data is given by:

y = 1.08x + 2.76.

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5. This diagram is a straightedge and
compass construction. Which triangle is
equilateral? Explain how you know.

Answers

The ΔVZW is Equilateral Triangle .

Equilateral Triangle is defined as the triangle in which all the three sides of the triangle are equal.

For Example ; if a triangle ABC has lengths AB=2cm , BC=2cm and CA=2cm    then the triangle ABC can be called as an equilateral triangle as all sides have same length i.e. 2cm .

In the question ,

From the diagram, we have the radius of all the circles are of equal length ,

Since the radius of all the circles are equal in length , their diameter will also be equal in length .

We can see from the diagram that VZ , ZW and WV are the diameters of the circles , So they will be equal in length ,

which means VZ = ZW = WV.

In triangle VZW the sides VZ , ZW and WV  are of equal length , hence the triangle will be an Equilateral Triangle.

Therefore , the Triangle VZW is Equilateral Triangle .

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Does 10x = 2.5x have one solution, no solutions, or infinite solutions?

Answers

Answer: One Solution

Step-by-step explanation:

Only the number 0 can solve this equation so it may be correct.

First approaching this problem, I would try to get x on one side of the equation by subtracting 2.5x from both sides.

This leaves us with 7.5x = 0

Therefore, this equation has only one solution, 0.

pls answer if wrong i ban you

Answers

The coordinates of L are: (8,-4)

Here, triangle is rotated 270° counterclockwise. So the rule that we have to apply here is

(x, y) → (y, -x)

Based on the rule given in step 1, we have to find the vertices of the rotated figure.

(x, y) → (y, -x)

L(4,8) → L'(8.-4)

M(4,3) → M'(3,-4)

N(8,8) → N'(8,-8)

Vertices of the rotated figure are:

L'(8.-4)  M'(3,-4)  N'(8,-8)

 

Hence we get the desired result.

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There are 20 flowers in a bouquet, and 2 of them are roses. What percent of the flowers are roses?

Answers

Answer:

10%

Step-by-step explanation:

firstly express as a fraction then multiply the fraction by 100% , that is

[tex]\frac{2}{20}[/tex] × 100% = 2 × 5 = 10% of the flowers are roses

emiah The length of a ruler is 12 inches. There are approximately 25.4 millimeters in 1 inch. Which measurement is closest to the length of the ruler in millimeters? A 3,048 mm B 30.48 mm C304.8 mm D 3.048 mm​

Answers

Answer:

C 304.8

Step-by-step explanation:

Answer:

C 304.8 mm

Step-by-step explanation:

12*25.4 = 304.8

Use the distributive property to multiply (3w + 5)(–2w – 7).
-6w^2+31w+35
6w^2-21w-35
-6w^2-31w-35
6w^2-21w+30

Answers

Answer:

[tex]=-6w^2-31w-35[/tex]

Step-by-step explanation:

Apply Foil.
[tex]\left(3w+5\right)\left(-2w-7\right)=3w\left(-2w\right)+3w\left(-7\right)+5\left(-2w\right)+5\left(-7\right)[/tex]
[tex]=3w\left(-2w\right)+3w\left(-7\right)+5\left(-2w\right)+5\left(-7\right)[/tex]
[tex]=-6w^2-31w-35[/tex]

5h+2(11−h)=−5 what is h

Answers

Answer:

-9

Step-by-step explanation:

5h+2(11−h)=−5

5h + 22-2h = -5

3h = -27

h = -9

What is 6.4% written as a decimal number? 64.0 6.4 0.64 0.064

Answers

Answer:

0.064

Step-by-step explanation:

To convert just muiltiply the percent by 100.

Evaluate 3x^2-2x+8 when x=3

Answers

Step-by-step explanation:

f(x) = 3x² - 2x + 8 , x = 3

f(3) = 3.3² - 2.3 + 8

= 27 - 6 + 8

= 29

Plss help me with this! 20 pointss

Answers

Answer:

4.57 meters

Step-by-step explanation:

Answer: 4.57 meters

Step-by-step explanation:

6 - 1.43 = 4.57 meters

Translate this phrase into an algebraic expression.
Three less than the product of 15 and Chrissy's score
Use the variable c to represent Chrissy's score.

Answers

Answer:

15c - 3

Step-by-step explanation:

Product means 'The answer when you Multiply' So we are working in multiplication ( x )

15 x c can also be written as 15c

'3 less than' means subtracting 3 off the answer.

So therefore the answer is:

15c - 3

Given that p=3i+j+2kand q=i-2j-4k are the position vectors
of points P and Q respectively, use the information to answer
Questions 2 and 3.
2.
Find an equation for the plane passing through Qand
perpendicular to liné PQ.

Answers

The equation for the plane passing through Q and perpendicular to line PQ is r (2 i + 3 j + 6 k) + 28 = 0.

Let position vector of point P be:

p = 3 i + j + 2 k

Let position vector of point Q be:

q = i - 2 j - 4 k

So, PQ = Q - P

PQ = n = i - 2 j - 4 k - (3 i + j + 2 k)

n = i - 2 j - 4 k - 3 i - j - 2 k

n = - 2 i - 3 j - 6 k

The Equation of plane passing through point Q and perpendicular to PQ will be:

(r - q).n = 0

r n = q n

q n = (i - 2 j - 4 k) . (- 2 i - 3 j - 6 k)

q n = - 2 + 6 + 24

q n = 28

r n = 28

r (- 2 i - 3 j - 6 k) = 28

r (2 i + 3 j + 6 k) + 28 = 0

Therefore the equation for the plane passing through Q and perpendicular to line PQ is r (2 i + 3 j + 6 k) + 28 = 0.

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A surveyor is estimating the distance across a river. The actual distance is 279.8 m. The surveyor's estimate is 300 m.
Find the absolute error and the percent error of the surveyor's estimate. If necessary, round your answers to the nearest tenth.

Absolute Error = ___ m

Percent Error = ___%​

Answers

Answer:

Absolute error = 20.2m

% error = 6.73%

Step-by-step explanation:

Absolute error = 300-279.8= 20.2m

% error = 20.2 ÷ 300 = 6.73%

is X a positive, negative or zero? x + 5 = -8

Answers

Answer:

Negative

Step-by-step explanation:

x + 5 = -8

Subtract 5 from both sides to get x by itself

x = -13

Answer:

X is negative

Step-by-step explanation:

make a research about fibonacci sequence and its process kindly give at least five examples.

Answers

What is the Fibonacci sequence?

The Fibonacci sequence is a set of integers (the Fibonacci numbers) that starts with a zero, followed by a one, then by another one, and then by a series of steadily increasing numbers. The sequence follows the rule that each number is equal to the sum of the preceding two numbers.

The Fibonacci sequence begins with the following 14 integers:

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233 ...

Each number, starting with the third, adheres to the prescribed formula. For example, the seventh number, 8, is preceded by 3 and 5, which add up to 8.

The sequence can theoretically continue to infinity, using the same formula for each new number. Some resources show the Fibonacci sequence starting with a one instead of a zero, but this is fairly uncommon.

Example 1: Starting with 0 and 1, write the first 5 Fibonacci numbers.

Solution: The formula for the Fibonacci sequence is Fn= Fn-1+Fn-2

The first and second terms are 0 and 1, respectively.

F0 = 0 and F1 = 1.

F2 = F0 + F1 = 0+1 = 1 is the third term.

F3 = F2+F1 = 1 + 1 = 2 is the fourth term.

F4 = F3+F2 = 1+2 = 3 is the fifth term.

The Fibonacci sequence’s first five terms are 0,1,1,2,3.

Example 2: Find the Fibonacci series’ next term: 0, 1, 1, 2, 3, 5…

Solution: The preceding two Fibonacci terms are the next term in the series.

As a result, the word that must be used is – 3 + 5 = 8

Example 3: What is the significance of Fibonacci numbers?

Solution: In financial statement analysis, Fibonacci numbers are pretty helpful. In addition, the Fibonacci number series may be utilized to provide valuable proportions or ratios for business people.

Example 4: Find the 12th term of the Fibonacci sequence if the 10th and 11th terms are 34 and 55, respectively.

Solution: Using the Fibonacci Sequence recursive formula, we can say that the 12th term is the sum of the 10th term and the 11th term

12th term = 10th term + 11th term

= 34 + 55

= 89

The 12th term of the Fibonacci sequence is 89.

Example 5: The 14th term in the sequence is 377. Find the next term.

Solution: We know that the 15th term = the 14th term × the golden ratio.

F15 = 377 × 1.618034

≈ 609.99 = 610

The 15th term in the Fibonacci sequence is 610.

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Kira has a deck of 10 cards numbered 1 through 10. She is playing a game of chance.

This game is this: Kira chooses one card from the deck at random. She wins an amount of money equal to the value of the card if an even numbered card is drawn. She loses $5.50 if an odd numbered card is drawn.

a) find the expected value of playing the game.

___ dollars

b) what can Kira expect in the long run, after playing the game many times? (She replaces the card in the deck each time)

a) kira can expect to gain money. She can expect to win ___ dollars per draw

b) kira can expect to lose money. She can expect to lose ___ dollars per draw.

c) kira can expect to break even (neither gain nor lose money)

Answers

Answer:

A. The expected value of playing the game is 0.25

B. She can expect in the long run to gain 0.25 dollars per draw.

Step-by-step explanation:

On 10 draws with each card drawn once....

Winnings: 2+4+6+8+10=30

Losses: 5(5.50)=27.50

She gains an average of $2.50 in each group of 10 games, or $0.25 per game.

9. Use the following data. 15, 24, 32, 46, 46, 58. Match the measures on the left with the values on the right.
1. median
2. mode
3. mean
4. range

Answers

Check out the attached photo

What is the graetest comon factor on 18 12

Answers

Answer: 6

Step-by-step explanation:

Answer:

GCF = 2

Step-by-step explanation:

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