What is the slope of the line shown?

What Is The Slope Of The Line Shown?

Answers

Answer 1

Answer:

Below

Step-by-step explanation:

Find two convenient integer coordinates ( 0,7)  and (5,-3)

slope = (y1-y2) / (x1-x2)  

    it does not matter which point your assign as '1' or '2'

slope = (  7 - - 3 ) / (0-5) =  10 /-5  = -2


Related Questions






A map of a small town identifies the town square as the origin (0,0). Each block along a street is represented by one unit along the x- or y-axis. The ice cream shop is at (5. 4) and the grocery
store is at (3.-2). The grocer wants to install an overhead delivery cable directly between the grocery store and the ice cream shop to expedite deliveries. What is the length of this cable to the
nearest tenth of a block
5.1 blocks
3
28 blocks
4
ООО
6.3 blocks
Next
5
8.0 blocks

A map of a small town identifies the town square as the origin (0,0). Each block along a street is represented

Answers

I think its 6.3 blocks i dont knows if my answer is correct but i guess

The length of this cable to the nearest tenth of a block will be 6.3 blocks. Then the correct option is C.

What is the distance between two points?

Let one point be (x, y) and another point be (h, k). Then the distance between the points will be

D² = (x - h)² + (y - k)²

A map of a small town identifies the town square as the origin (0,0). Each block along a street is represented by one unit along the x- or y-axis. The ice cream shop is at (5. 4) and the grocery store is at (3.-2).

To speed up deliveries, the grocer plans to set up an overhead delivery wire that runs directly between the grocery store and the ice cream parlor.

The length of this cable to the nearest tenth of a block will be

D² = (5 - 3)² + (4 + 2)²

D² = 2² + 6²

D² = 4 + 36

D² = 40

D = 6.3 blocks

The length of this cable to the nearest tenth of a block will be 6.3 blocks. Then the correct option is C.

Learn more about the distance between two points here:

https://brainly.com/question/18296211

#SPJ2

I REALLY NEED HELP WITH THESE 5 QUESTIONS!!!!!!!!!

I REALLY NEED HELP WITH THESE 5 QUESTIONS!!!!!!!!!
I REALLY NEED HELP WITH THESE 5 QUESTIONS!!!!!!!!!

Answers

Answer:

is -5,-3

Step-by-step explanation:

set up the tablet and done

Someone pls help me before my dad goes nuts

Someone pls help me before my dad goes nuts

Answers

Answer:

if i remember correctly from 8th grade, a triangle the angles should add up to 180. x=31 z=104 y=45

Step-by-step explanation:

104 plus 31 plus 45 all adds up to 180.

Sasha performs an experiment. She chooses one marble from each of three sacks. The first sack has black (B) and white (W) marbles. The
second sack has green (G) and yellow (Y) marbles. The third sack has silver (S) and red (R) marbles.
Which tree diagram shows all the possible outcomes for this experiment?
w
R R
R
R
w
R
Ris
R
R
HELPPPPOO PLEASEREE

Sasha performs an experiment. She chooses one marble from each of three sacks. The first sack has black

Answers

Answer:

Step-by-step explanation:

I dont know

Answer: D

Step-by-step explanation:

This figure shows the nose cone of a rocket used for launching satellites. The nose cone houses the satellite until the satellite is placed in orbit. What is the volume of the nose cone?

This figure shows the nose cone of a rocket used for launching satellites. The nose cone houses the satellite

Answers

The volume of the nose cone of height 15 feet is 84.78 ft³.

What is volume?

Volume is defined as the space occupied within the boundaries of any three-dimensional solid.

To calculate the volume of the nose cone, we use the formula below.

Formula:

V = πr²h/3................. Equation 1

Where:

V = Volume of the nose coner = Radius of the nose coneh = Height of the nose cone

From the question,

Given:

r = 6/2 = 3 feeth = 15 feetπ = 3.14

Substitute these values into equation 1

V = 3.14×3²×15/3V = 84.78 ft³

Hence, the volume of the nose cone is 84.78 ft³.

Learn more about volume here: https://brainly.com/question/23963432

#SPJ1

Isaac owns a home, has a bi-weekly gross income of $1,925. 00,

and has total minimum monthly debt payments of $3,915. 0.

Choose the inequality that shows the minimum amount Isaac

needs to reduce his monthly debt payments by to have a debt-to-

income ratio of 35%.


x≤ $1,459. 79

x ≥ $1,459. 79

x≤ $2,455. 21

x ≥ $2,455. 21

Answers

The inequality that shows the minimum amount of Isaac is x ≥ $2,455.21

What is inequality?

An inequality is a mathematical statement that compares two expressions and expresses the relationship between them. It is represented by a symbol such as ">", "<", "≥", or "≤" and can be thought of as a generalization of an equation.

First, we need to find Isaac's monthly gross income. Since he has a bi-weekly gross income of $1,925, we can calculate his monthly gross income as follows:

Monthly gross income = bi-weekly gross income x 26 / 12 = $1,925 x 26 / 12 = $4,158.33

The debt-to-income ratio is the ratio of monthly debt payments to monthly gross income, expressed as a percentage.

We want to find the minimum amount by which Isaac needs to reduce his monthly debt payments to have a debt-to-income ratio of 35%.

So we can set up the following inequality:

Minimum monthly debt payments / Monthly gross income ≤ 35% / 100%

Substituting the given values, we get:

$3,915 / $4,158.33 ≤ 0.35

Simplifying this inequality, we get:

0.9407 ≤ 0.35

This inequality is not true, so we made an error in our calculations. Let's check the calculation of monthly gross income. We should have:

Monthly gross income = bi-weekly gross income x 26 / 12 = $1,925 x 26 / 12 = $4,158.33

This calculation is correct. The problem is that the minimum monthly debt payments of $3,915 are already higher than what is allowed by the debt-to-income ratio of 35%. In fact, the maximum monthly debt payments Isaac can have to satisfy the 35% debt-to-income ratio is:

Maximum monthly debt payments = Monthly gross income x 35% = $4,158.33 x 35% = $1,454.92

Therefore, the minimum amount by which Isaac needs to reduce his monthly debt payments is:

$3,915 - $1,454.92 = $2,460.08

Rounding this to two decimal places, we get $2,460.09, which is closest to the fourth option:

x ≥ $2,455.21

Hence,  the inequality that shows the minimum amount of Isaac is x ≥ $2,455.21

To learn more about inequality visit:

https://brainly.com/question/30238989

#SPJ1

I need help!!! Someone please help

I need help!!! Someone please help

Answers

Answer:

See below

Step-by-step explanation:

According to the graph the answers are

1. Slope is 2

(1 - (-1))/(0 - (-1)) = 2/1 = 2

2. y - intercept is 1

point (0, 1)

3. Slope- intercept formula

y = 2x + 1

Solve for x NEED HELP

Solve for x NEED HELP

Answers

Answer:

about 16.571

...............

The temperature of a city changed by -24 degrees Celcius over a 6-week period. The temperature changed by the same amount each week.
Part A:Write an expression to show the average change in the temperature of the city each week.(5 points)
Part B:Simplify the expression and explain, using words, what your answer means.(5 points)

Answers

Answer:

Part A -24 divided by 6 equals -4

Excuse me can you help it’s proportional relationship
Armstrong high school decided to purchase 30 lab coats one lab coat regularly cost $18.50 if a 15% discount is given on the total purchase how much will the lab coats cost..
Also can you help me with more sums

Answers

Sorry, I’m busy but I’ll help you with this one.

$18.50 x 30 = $555

100% - 15% = 85%

$555 / 100 = $5.55

$5.55 x 85 = $471.75

Lab Coats will cost $471.75

What is the volume of a cube with a side length of 3tunits?
Cube V = 93

Answers

Answer:

The volume 27.

The volume of a cube:

Volume = side³

The volume of a cube with side 3 units is 27 cubic units.

What is a cube?

It is a polygon having six faces.

The volume of a cube:

Volume = side³

Example:

The volume of a cub with a side length of 2 cm is 8 cubic cm.

We have,

Side = 3 units

Volume = Side³

Volume:

= 3³

= 3 x 3 x 3

= 27 cubic units

Thus,

The volume of a cube with side 3 units is 27 cubic units.

Learn more about cubes here:

https://brainly.com/question/11168779

#SPJ2

In a text, irrelevant evidence describes facts and information that _[blank]_ an idea or a claim.

which answers best complete the sentence?

select all that apply.


are unrelated to

fail to provide adequate support for

are essential in supporting

work to disprove

Answers

answer: are unrelated to, and fail to provide adequate support for. explanation: irrelevant evidence is unrelated and fails to support the claim given.

Answer: Fail to provide adequate support for, and  are unrelated to

Step-by-step explanation: I took the exam

Which of the following is the correct definition for dependent events? A. Two events are dependent if they have no outcomes in common and cannot occur at the same time. B. Two events are dependent if they have outcomes in common and can occur at the same time. C. Two events are dependent if the outcome of the first event does not affect the outcome of the second event. D. Two events are dependent if the outcome of the first event affects the outcome of the second event.

Answers

The correct definition of dependent events is two events are dependent if the outcome of the first event affects the outcome of the second event.

What are dependent events?

Two events are dependent if the outcome of one of the event depends on the outcome of the first event.  An example of a dependent event is if it rains, the floor would be wet.

To learn more about dependent events, please check: https://brainly.com/question/13075229

#SPJ1

• Liz fue a comprar un Kilo de Papas tres cuartos
de Kilo de tomate y medio Kils de aguacate Yob
Cuarto de kilo de cebolla ¿Cuantos Kilos Pesaba
toda la verdura que compro?

Answers

Liz went to the store to get a kilo of papas, three kilo tomatoes, and a half kilo of aguacate. Yob Cuarto de Kilo de Cebolla, How Many Kilograms Were All the Vegetables You Bought Weighed

2,40

Dejar:

T = Tomate

n = cebolla

(2 kilograms of t) plus 1 kilogram of n = 8.40

(1 kilogram plus 2 kilograms) equals 7.80.

2t + n = 8,40 - -

t + 2n = 7,80 - -

De (2);

t = 7,80 - 2n

Toggata = 7.80 - 2n en

2 (7,80 - 2n) + n = 8,40

15,6 - 4n + n = 8,40

15,6 - 3n = 8,40

-3n = 8,40 - 15,6

-3n = - 7,2

n = 2,4

t = 7,80 - 2

t = 7,80 - 4,80

t = 3

As a result, the price of 1 kg of celery is $2.40.

To learn more about Liz Visit : https://brainly.com/question/19161934

#SPJ9

solve for x-5-10=-60 the answer choices are -10 10 100 please help this is fora test

Answers

Answer:

i got -45, so make sure you wrote the problem right because i solved correctly.

I think it is -45 I looked it up

The sum of the first five terms of an arithmetic sequence is 35. The sum of the next five terms is 85. Determine the first term and the common difference of the sequence.

Answers

Answer:

The first term is 3 and the common difference is 2

Step-by-step explanation:

The formula of the sum of the nth term of the arithmetic sequence is

\(S_{n}=\frac{n}{2}[2a+(n-1)d]\), where

a is the first termd is the common differencen is the position of the term

∵ The sum of the first five terms of an arithmetic sequence is 35

∴ \(S_{5}\) = 35

→ Substitute The values of n and S in the rule above

∵ 35 = \(\frac{5}{2}[2a+(5-1)d]\)

∴ 35 = \(\frac{5}{2}[2a+4d]\)

→ Simplify the right side

∴ 35 = 5a + 10d

→ Switch the two sides

5a + 10d = 35 ⇒ (1)

∵ The sum of the next five terms is 85

→ To find the sum of the first 10 terms add 85 to \(S_{5}\)

\(S_{10}\) = 35 + 85 = 120

→ Substitute The values of n and S in the rule above

∵ 120 = \(\frac{10}{2}[2a+(10-1)d]\)

∴ 120 = 5[2a + 9d]

→ Simplify the right side

∴ 120 = 10a + 45d

→ Switch the two sides

10a + 45d = 120 ⇒ (2)

Now we have a system of equations to solve it and find a and d

→ Multiply equation (1) by -2

∵ -2(5a) + -2(10d) = -2(35)

-10a + -20d = -70 ⇒ (3)

→ Add equations (2) and (3)

∵ (10a + -10a) + (45d + -20d) = (120 + -70)

∴ 25d = 50

→ Divide both sides by 25 to find d

d = 2

→ To find a substitute d in equation (1) by 2

∵ 5a + 10(2) = 35

∴ 5a + 20 = 35

→ Subtract 20 from both sides

∵ 5a + 20 - 20 = 35 - 20

∴ 5a = 15

→ Divide both sides by 5

a = 3

The first term is 3 and the common difference is 2

Solve for b. Express your answer as an integer or integers or in simplest radical form. -165= -3-6b^3
Fastest and correct wins brainliest

Answers

I wanna help you but I don’t understand sorry

What do we mean when we say that a distribution is symmetric? give simple examples of a symmetric distribution, a left-skewed distribution, and a right-skewed distribution.

Answers

When we say that a distribution is symmetric, the meaning is a distribution in which the left and right sides mirror each other.

A symmetrical distribution occurs when the values of variables appear at regular frequencies and often the mean, median, and mode all occur at the same point

If we draw a line through the center of the graph the left side will be the mirror image of right side

In symmetrical distribution, the mean, median and mode will be equal.

In skewed distributions, one tail of the distribution considerably longer or drawn out relative to the other tail.

A skewed right distribution is one in which the tail is on the right side.

A skewed left distribution is one in which the tail is on the left side.

Hence, When we say that a distribution is symmetric, the meaning is a distribution in which the left and right sides mirror each other.

Learn more about symmetrical distribution Here

brainly.com/question/22613916

#SPJ4

What do we mean when we say that a distribution is symmetric? give simple examples of a symmetric distribution,
What do we mean when we say that a distribution is symmetric? give simple examples of a symmetric distribution,
What do we mean when we say that a distribution is symmetric? give simple examples of a symmetric distribution,

Q- 6
Triangle NMO is drawn with vertices N(−5, 2), M(−2, 1), O(−3 , 3). Determine the image vertices of N′M′O′ if the preimage is reflected over x = −5.

N′(5, 2), M′(2, 1), O′(3, 3)
N′(2, −5), M′(1, −2), O′(3, −3)
N′(0, 2), M′(3, 1), O′(2, 3)
N′(−5, 2), M′(−8, 1), O′(−7, 3)

Answers

The vertices of the triangle after reflection is

D)N′(−5, 2), M′(−8, 1), O′(−7, 3).

What is triangle?

A triangle is a form of polygon with three sides; the intersection of the two longest sides is known as the triangle's vertex. There is an angle created between two sides. One of the crucial elements of geometry is this

Remember that the general rule to reflect over a vertical line in the form

if  x = a then,

=> (x , y) -> (-x-2a , y)

For x = 5, we'll have that the general rule is:

=> (x , y)  -> (-x-10 , y).

Now the triangle vertices are,

N(-5,2) => (-(-5)-10,2) => (5-10 , 2) => N'(-5,2)

M(-2,1) => (-(-2)-10,1) => (2-10,1) => M' (-8,1)

O(-3,3) => (-(-3)-10,3) => (3-10,3) => O'(-7,3)

Hence the vertices of the triangle after reflection is D)N′(−5, 2), M′(−8, 1), O′(−7, 3).

To learn more about triangle refer the below link

https://brainly.com/question/17335144

#SPJ1

When is a quadrilateral both a trapezoid and a parallelogram? Complete the explanation.

When there are (select: no pairs, one pair, two pairs) of parallel lines, which are lines with (select: the same slope, different slopes)

Answers

Answer:

TWO PARALLEL LINES AND LINES WITH EQUAL LENGTHS

Step-by-step explanation:

As we all know a quadrilateral is a polygon with four sides(edges and corners). Trapezoid is a four-sided shape with opposite sides parallel while parallelogram is also a for sided shape that has its opposite sides paralleled.

NOW, a quadrilateral is said to be both a trapezoid and a parallelogram when there are two opposite parallel lines, which are lines with equal lengths.

Hoped i helped

A quadrilateral is formed by the points a(1, -1), b(0, 3), c(5, 5), and d(6, 1). plot the points and use the distance formula to find the lengths of all 4 sides. what type of quadrilateral is this?

Answers

The type of quadrilateral is rectangle.

What is distance formula?

The distance between coordinate P(x1 , y1) and coordinate Q(x2 , y2) is calculated using the distance formula: d = √[(x2 - x1)² + (y2 - y1)²]

Given coordinates: a(1, -1), b(0, 3), c(5, 5), and d(6, 1).

ab= √(0-1)² + (3+1)²

ab= √17

bc= √(5-0)² + (5-3)²

bc= √29

cd= √(6-5)² + (1-5)²

cd= √17

da=√(6-1)² + (1+1)²

da= √29

ac=√(5-1)² + (5+1)²

ac= √16+36

ac= √52

bd =√(6-0)² + (1-3)²

bd= √36+4

bd= √40

Learn more about this concept here:

https://brainly.com/question/12864470

#SPJ1

Answer:

PARALLELOGRAM

Step-by-step explanation:

opposite sides are congruent, but it doesn't have 4 right angles or 4 congruent sides; this means it's a parallelogram (and not a rectangle or rhombus)

what is 3x = 0.5x2 in standard form

Answers

Answer:

-0.5x\(x^{2}\)+3x=0

Step-by-step explanation:

The answer is 1/3 here’s the working solution
what is 3x = 0.5x2 in standard form

Consider the scale drawing and actual drawing of an
office.

Original
1.5 in.
3 yd

Enlargement
2.5 in.
5 yd

Compare the scale drawing to the actual drawing. What
information is needed to find the area?
1. The scale factor is (1) (2) (3) or (4)
2. The area of the scale drawing is (3.75) (4) (8) or (11.5)
3. To find the area of the actual drawing, multiply the
area of the scale drawing by the (inverse) (multiple) (reciprocal) or (square)
of the scale factor.

Answers

The answers to each part about the scale factor is given above.

What is scale factor?

Scale factor is the ratio of final dimensions to the initial dimensions.

Mathematically, we can write -

K = {final dimension/initial dimension}

Given are the dimensions of the drawing as -

Original                        1.5 in.          3 yd

Enlargement               2.5 in.          5 yd

{ 1 } -

We can write the scale factor as -

K = 3/1.5

K = 2

{ 2 } -

Area of the scaled drawing -

A = 2.5 x 5

A = 2.5 x 180

A = 450 square inches

{ 3 } -

To find the area of the actual drawing, multiply the area of the scale drawing by the multiple of the scale factor.

Therefore, the answers to each part about the scale factor is given above.

To solve more questions on scale factor, visit the link-

https://brainly.com/question/30948953

#SPJ1

In circle C. r = 32 units.
What is the area of circle C?
A
32īt units?
c
641 units?
256TI units
1024Tt units?

Answers

Answer:

1024 pi

Step-by-step explanation:

r = 32 units.

Area = pi * r^2

Area = 3.14 * 32^2

Area = 1024 * pi

Tt = pi??

If one item is chosen from m items, a second item is chosen from n items, and a third item is chosen from p items, the total number of three-item choices is?

Answers

If one item is chosen from m items, a second item is chosen from n items, and a third item is chosen from p items, the total number of three-item choices is MNP.

What is probability?

Probability  can be regarded as a  measure of the likelihood of an event  that can take place.

It should be noted that  Many events cannot be predicted with total certainty, hence , If one item is chosen from m items, a second item is chosen from n items, and a third item is chosen from p items, the total number of three-item choices is MNP.

Learn more about probability on:

https://brainly.com/question/24756209

#SPJ4

Need some help pleaseee

Need some help pleaseee

Answers

Answer: A=56/5 ft^2

Step-by-step explanation:

A=Area of triangle. b=base. h=height

A=1/2 * b * h

A=1/2 * (5+3/5) * 4

A=1/2 * (25/5 + 3/5) * 4

A=1/2 * 28/5 * 4

A=28/10 * 4

A=28*4/10

A=112/10

A=56/5 ft^2

Find length bc. Give your answer to 1 decimal place 11cm 64 trigonometry

Find length bc. Give your answer to 1 decimal place 11cm 64 trigonometry

Answers

Answer:

BC ≈ 9.9 cm

Step-by-step explanation:

Using the sine ratio in the right triangle

sin64° = \(\frac{opposite}{hypotenuse}\) = \(\frac{BC}{AC}\) = \(\frac{BC}{11}\) ( multiply both sides by 11 )

11 × sin64° = BC , then

BC ≈ 9.9 cm ( to 1 dec. place )


Answer number 1 please

Answer number 1 please

Answers

Answer:

Step-by-step explanation:

So the price is $849 and the tax is 8%

Since the tax is 8%, that means the tax is 8% of the total price, $849 and thus we get the equation:

0.08 * 849 = $67.92

Total price = Price of refrigerator + tax = $849 + $67.92 = $916.92

There are 70 students enrolled in an art class. The day before the class begins 20% of the students cancel. How many students actually attend the art class?

Answers

Answer:

56

20% of 70 is 14

so 14 kids canceled

so that leaves 56

a radioactive substance decays exponentially. a scientist begins with 170 milligrams of a radioactive substance. after 12 hours, 85 mg of the substance remains. how many milligrams will remain after 22 hours?

Answers

approximately 42.5 milligrams of the substance will remain after 22 hours.Since the radioactive substance decays exponentially, we can use the formula:N = N0 * e^(-kt)

where N is the amount of substance remaining after time t, N0 is the initial amount of substance, k is the decay constant, and e is the base of the natural logarithm.

We know that the initial amount of substance is 170 milligrams, and after 12 hours, 85 milligrams remain. We can use these values to solve for the decay constant k:

85 = 170 * e^(-k*12)

Dividing both sides by 170, we get:

0.5 = e^(-k*12)

Taking the natural logarithm of both sides, we get:

ln(0.5) = -k*12

Solving for k, we get:

k = ln(2)/12

Now we can use this value of k to find the amount of substance remaining after 22 hours:

N = 170 * e^(-k*22)

N = 170 * e^(-22*ln(2)/12)

N = 170 * e^(-11*ln(2)/6)

N ≈ 42.5

Therefore, approximately 42.5 milligrams of the substance will remain after 22 hours.

To  learn  more about logarithms click here:brainly.com/question/30226560

#SPJ11

Other Questions
.) Consider the special case where beta = 1 and utility takes the log form. Suppose the real interest rate is 7%. Lets give this consumer a financial profile that might look like that of a typical student. Initial assets are $5,000, labor income today is $10,000, and future income is $100,000. a. What is the individual's total human wealth? b. What is the individuals total wealth? c. How much does a neoclassical consumer consume today? d. How much does a neoclassical consumer consume in the future? e. By how much does consumption rise today if current labor income increases by $10,000? f. By how much does consumption rise today if future labor income rises by $10,000? Why does your answer here differ from that in part (e)? g. If interest rate rises to 10%, what is the new amount of total wealth and consumption today in dollar amounts? h. What happens to consumption if the student is constrained for some reason and cannot borrow today? What happened to Jews and Muslims after the Iberian kingdoms united? PLEASE ASAP Priya has a recipe for banana bread. She uses 7.5 cups of flour to make 3 loaves of banana bread. How much flour does Priya need to make 1 loaf of bread? Which of the following is not a type of file you can create in google drive? DocumentsSpreadsheetsDatabasesPresentationsFormsDrawings Maha has two colors of modeling clay. She has1.05 kilograms of blue modeling clay and1.3 kilograms of orange modeling clay. Whichcolor of modeling clay does Maha have more of? The Big Bird lineage became reproductively isolated from G. fortis. Describe one prezygotic mechanism that likely contributed to the reproductive isolation of the Big Bird lineage from G. fortis. Which measure has the correct number of beats What is the difference between the Delcaration of sentiments and the speech to the American equal right association? Essay!!!!! I need this right now I need help with this please What recent every in everyday life has been described as a "tragedy"? How so? What are it's characteristics?(answer in 3-4 sentences) 4. Distinguish between impact and incidence of taxes You go to buy a gun and Wal-Mart says you have enough guns, and kick you outof the store. Were your rights violated? * Which frequencies can humans can hear but not mice Imagine some cosmic catastrophe that jolts earth so that it is no longer tilted. instead, its axis is perpendicular to the line between the sun and earth. the most predictable effect of this change would be If an individual were unable to produce sebum, what problem would he or she most likely develop? Which requirement of secure communications is ensured by the implementation of MD5 or SHA hash generating algorithms?integrityIf an asymmetr The functions f(x)=34x+214 and g(x)=(12)x+1 are shown in the graph. What are the solutions to 34x+214=(12)x+1? Select each correct answer. What questions do you answer when you manage a project? Select an answer___ a. all of these answers. b. How will you know when you're done? And how well did the project go?. c. What's your plan? d. What problem are you solving? And how are you going to solve it? What are the THREE reasons the US won the Battle of Midway? (Please help me answer this!) if a boat is moving downstream, will the velocity of the boat relative to the water be greater than the velocity of the boat relative to the stream bank? explain.