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3 years ago

The slope of (19,8) (1, -2)

Mathematics

1 answer:

STALIN [3.7K]3 years ago

8 0

The slope of this is 5/9

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What are the steps for this problem? -10-8n=n-(8n+8)

Elden [556K]

Answer:

$n = - 2$

Step-by-step explanation:

$- 10 - 8n = n - (8n + 8)$

First, you should distribute the -1 on the right.

$- 10 - 8n = n - 8n - 8$

Next, add 8n to both sides. This should cancel out the 8n.

$- 10 = n - 8$

Now, add 8 to both sides. This will get n by itself.

$- 2 = n$

Your answer is n = -2.

6 0

4 years ago

Read 2 more answers

The area of a table is 8ft^2 and the length is 4ft. The width of the table top is?

Natalka [10]

The formula for area is A = L*W or we can say A=LW. Lets plugin what we know.

A = LW
8 = 4W
Now solve for W
8 = LW
8=LW
8/4 = 4W / 4
2 = W
W = 2

So the width is 2ft

6 0

4 years ago

Write the expression of seven less than n

kow [346]

7 < n, what you do is take the number figure out whether or not its bigger or smaller, add in the sign, and put your n or variable (:

3 0

4 years ago

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Two boats leave port at noon. Boat 1 sails due east at 12 knots. Boat 2 sails due south at 8 knots. At 2 pm the wind diminishes

Ivan

Answer:

14.86 knots.

Step-by-step explanation:

<em>Given that:</em>

The boats leave the port at noon.

Speed of boat 1 = 12 knots due east

Speed of boat 2 = 8 knots due south

At 2 pm:

Distance traveled by boat 1 = 24 units due east

Distance traveled by boat 2 = 16 units due south

Now, speed of boat 1 changes to 9 knots:

At 3 pm:

Distance traveled by boat 1 = 24 + 9= 33 units due east

Distance traveled by boat 2 = 16+8 = 24 units due south

Now, speed of boat 1 changes to 8+7 = 15 knots

At 5 pm:

Distance traveled by boat 1 = 33 + 2 $\times$ 9= 51 units due east

Distance traveled by boat 2 = 24 + 2 $\times$ 15 = 54 units due south

Now, the situation of distance traveled can be seen by the attached right angled $\triangle AOB$ .

O is the port and A is the location of boat 1

B is the location of boat 2.

Using pythagorean theorem:

$\text{Hypotenuse}^{2} = \text{Base}^{2} + \text{Perpendicular}^{2}\\\Rightarrow AB^{2} = OA^{2} + OB^{2}\\\Rightarrow AB^{2} = 51^{2} + 54^{2}\\\Rightarrow AB^{2} = 2601+ 2916 = 5517\\\Rightarrow AB = 74.28\ units$