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3 years ago

What is the slope of the line that passes through the points (-3, -2) and (5, 6)?

Mathematics

1 answer:

katrin2010 [14]3 years ago

8 0

Answer:

the slope is 54

Step-by-step explanation:

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A fleet of nine taxis is to be dispatched to three airports in such a way that three go to airport a, five go to airport b, and

krok68 [10]

A fleet of nine taxis is to be dispatched to three airports in such a way that three go to airport A, five go to airport B, and one goes to airport C. In how many distinct ways can this be accomplished?

2.44) Refer to Exercise 2.43. Assume that taxis are allocated to airports at random.

a) If exactly one of the taxis is in need of repair, what is the probability that it is dispatched to airport C?

b) If exactly three of the taxis are in need of repair, what is the probability that every airport receives one of the taxis requiring repairs?

So, my answer to 2.44a is 1/9. Hopefully this is correct at least :)

For 2.44b, my guess was

(3C1)(1/3)(2/3)2 * (5C1)(1/3)(2/3)4 * 1/3

The solutions manual on chegg (which seems to be riddled with errors) says something completely different. Is my calculation correct?

8 0

3 years ago

Read 2 more answers

Tell whether the ratios form a proportion. 21:3 and 16:6

lesya692 [45]

Answer:

Step-by-step explanation:

21/3 = 16/6

126 ≠ 48

does not form a proportion

4 0

3 years ago

Jewel is 7 years old and John is 16 years younger than Dave. One year ago, Dvae's age was twice the sum of Jewel's and John's ag

ivanzaharov [21]

Answer:

Jewel is 7 years old

John is 1 year old

Dave is 17 years old

Step-by-step explanation:

From the question we are told that:

Jewel age is $J=7 years$

John age $J'=(D-16)years$

Dave's age a Year ago

$D-1=2(J-1+J'-1)$

So that Dave.s age this Year could be

$D=2((J-1)+(J'-1))+1$

Simplifying Equation for Dave's age we have

$D=2((7)-1+(D-16)-1)+1$

$D=2(6+D-15)+1$

$D=2(D-9)+1$

$D=2D-18+1$

$D=17 Years$

Dave is 17 years old

Therefore

Johns age is

$J'=(D-16)$

$J'=17-16$

$J'=1year old$

John is 1 year old

7 0

3 years ago

Day and Night Kennel charges $20 per day plus a one-time food fee of $15 to board a pet. Bark Time Hotel charges $30 per day plu

BaLLatris [955]

Answer:

See below.

Step-by-step explanation:

Let x represent the number of days.

Since Day and Night Kennel charges a fee of $20 per day and only a one-time fee of $15:

$y=20x+15$

Where y represents the total cost, 20x represents the cost for staying x days and 15 is the initial one-time fee.

For Bark Time Hotel, similarly:

$y=30x+5$

Again, y represents the total cost, 30x represents the cost for staying x days, and 5 is the initial one-time fee.

Thus, the system of equations is:

$y=20x+15\\y=30x+5$

7 0

3 years ago

Look at the picture question and answer in there

nignag [31]

x-intercept is for y = 0

y-intercept is for x = 0

We have x - 3y = -9.

Put y = 0 to the equation:

x - 3(0) = -9

x - 0 = -9

x = -9

Put x = 0 to the equation:

9 - 3y = -9

-3y = -9 divide both sides by (-3)

y = 3

Answer:

<h3>x-intercept (-9, 0); y-intercept (0, 3)</h3>

8 0

3 years ago