All categories

2 years ago

Find the slope of the line that contains (3, −6) and (−1, −9).

Mathematics

2 answers:

vredina [299]2 years ago

7 0

The formula is y2 - y1/x2 - x1. The answer would be 3/4 once simplified.

Ira Lisetskai [31]2 years ago

3 0

You use the slope formula:

m = y₂-y₁ / x₂-x₁

And you plug in the points into the formula.

m = -9 - (-6) / -1 - 3

m = -9 + 6 / -1 - 3

m = -3 / -4

m = 3/4

You might be interested in

Why was the math teacher mad at you?

forsale [732]

Step-by-step explanation:

becoz i hate mathssssssss

3 0

2 years ago

Find the perimeter of the rectangle

kifflom [539]

Answer:

22x + 24

Step-by-step explanation:

7x+9+7x+9+4x+3+4x+3

11x + 18 + 11x + 6

Mark brainliest please!

3 0

1 year ago

Read 2 more answers

Find x and y? <br>i dont want to cheat but can anyone tell me how to do it or how to start out

mash [69]

Answer:

x is 13

y is 39

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

A rectangular tank that is 5324 ft cubed with a square base and open top is to be constructed of sheet steel of a given thicknes

marishachu [46]

Answer:

Side of 22 and height of 11

Step-by-step explanation:

Let s be the side of the square base and h be the height of the tank. Since the tank volume is restricted to 5324 ft cubed we have the following equation:

$V = s^2h = 5324$

$h = 5324 / s^2$

As the thickness is already defined, we can minimize the weight by minimizing the surface area of the tank

Base area with open top $s^2$

Side area 4sh

Total surface area $A = s^2 + 4sh$

We can substitute $h = 5324 / s^2$

$A = s^2 + 4s\frac{5324}{s^2}$

$A = s^2 + 21296/s$

To find the minimum of this function, we can take the first derivative, and set it to 0

$A' = 2s - 21296/s^2 = 0$

$2s = 21296/s^2$

$s^3 = 10648$

$s = \sqrt[3]{10648} = 22$

$h = 5324 / s^2 = 5324 / 22^2 = 11$

4 0

2 years ago

Which of the following is a proportion? 9/12= 8/10 3/4= 9/12 6/8= 8/12 12/18= 9/16

solong [7]

Answer:

The proportion is 3/4=9/12

Step-by-step explanation: For proportions you need to write it in a ratio, after doing that, you look at the outside numbers on the ratio on this case it is 3 and 12, multiply that and you get 36, after that do the same with the inside numbers to get another 36.

4 0

2 years ago