All categories

4 years ago

What is the slope of the line passing through the points (2, 5) and (-1, -4)

Mathematics

2 answers:

LekaFEV [45]4 years ago

5 0

Answer:

Slope = 3

Step-by-step explanation:

Slope = $\frac{y2 - y1}{x2 - x1}$

Slope = $\frac{-4 - 5}{-1 - 2}$

Slope = $\frac{-9}{-3}$

Slope = 3

Answer: Slope = 3

Mariulka [41]4 years ago

4 0

Answer:3/1

Step-by-step explanation:-4-5/-1-2=-9/3=3/1

You might be interested in

What is the surface area means

PIT_PIT [208]

Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape.

3 0

3 years ago

Read 2 more answers

Carla buys a dress for $20.00 she pays 7 percent sales tax .. How much does she pay for the dress with tax?

BaLLatris [955]

Answer:

Carla pays $21.4 for the dress with tax.

Step-by-step explanation:

Here we are given that :

Price of dress = $20

Sales tax = 7%

Price of dress with tax = $20 + 7% of 20

Price of dress with tax = 20+1.4 = 21.4

Price of dress with tax = $21.4

Carla pays $21.4 for the dress with tax.

4 0

3 years ago

Sandy bought a soft drink for 2 dollars and 5 candy bars. She spent a total of $12. How much did each candy bar cost?

Roman55 [17]

Answer:

If Sandy bought a soft drink for 2 dollars that's 2 dollars subtracted from the total of $12.00 spent

If we have 10 dollars and bought 5 candy bars we would divide so 10 divided by 5 = 2 so each candy bar costed $2 dollars

6 0

3 years ago

Determine the sum of the arithmetic series: 5+18 +31 +44 + ... 161.

Finger [1]

Answer:

1079

Step-by-step explanation:

Hello,

18-5 = 13

31-18=13

44-31=13

161=5+13*12

So we need to compute

$\displaystyle \sum_{k=0}^{k=12} \ {(5+13k)}\\\\=\sum_{k=0}^{k=12} \ {(5)} + 13\sum_{k=1}^{k=12} \ {(k)}\\\\=13*5+13*\dfrac{12*13}{2}\\\\=65+13*13*6\\\\=65+1014\\\\=1079$

Thanks

3 0

3 years ago

How many gallons of a 80% antifreeze solution must be mixed with 100 gallons of 20% antifreeze to get a mixture that is 70% a

Blababa [14]

To Find :

How many gallons of a 80% antifreeze solution must be mixed with 100 gallons of 20% antifreeze to get a mixture that is 70% antifreeze.

Solution :

Let, x gallons of 80% antifreeze solution is required :

So,

$(x \times 80) + ( 100 \times 20 ) = (x + 100 )\times 70\\\\8x + 200 = 7( x + 100)\\\\x = 500$

Therefore, 500 gallons of 80% antifreeze solution is required.

6 0

3 years ago