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maxonik [38]
3 years ago
14

What is the slope of the line that contains the points (1 -1) and (-2 8)

Mathematics
1 answer:
wel3 years ago
8 0

The slope of the line that contains the points (1 -1) and (-2 8) is -3

Step-by-step explanation:

Slope measures the steepness of a line. It is the ratio of vertical change to horizontal change. If the line increasing, the slope is positive and if the line is decreasing the slope is negative. If the line is horizontal slope is zero and if the line is vertical slope is undefined.

Equation for slope = (y2-y1)/(x2-x1)

here y2= 8

x2=-2

y1=-1

x1=1

Substituting the following,

slope = (8+1)/(-2-1)

=9/-3

=-3

hence the slope is -3

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Zx and Zy are supplementary angles. Zy measures 108°,
gulaghasi [49]

Answer:

72°

Step-by-step explanation:

Given

Zy = 108°

Zx = ?

We know

Zx + Zy = 180° {being supplementary angles }

Zx + 108° = 180°

Zx = 180° - 108°

Zx = 72°

Hope it will help :)

4 0
3 years ago
Greatest to least 1/3 1/2 3/4
schepotkina [342]
The answer will be 3/4, 1/2, and 1/3.
The bigger the fraction the smaller it is.
So 3/4 would be first .
The smaller the fraction the bigger it is.
So 1/3 would be last.
So that leaves you with 1/2 so that one would be in the middle of the set.
So the answer would be...:3/4, 1/2, and 1/3.
Hope that helped.
4 0
3 years ago
Malachi bought a new fishing rod. The regular price of the fishing rod was $125.99. Sales tax of 8% is applied(added) to the tot
madreJ [45]

Answer:

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5 0
3 years ago
the speed that a tsunami can travel is modeled by the equation mc025-1.jpg , where s is the speed in kilometers per hour and d i
Flura [38]
The answer is a.0.32 km.

The speed that a tsunami can travel is modeled by the equation is s = 356√d.

It is given:
s = 200 km/h
d = ?

Now, let's substitute s in the equation and find d:
s = 356√d
200 = 356√d
√d = 200 ÷ 356
√d = 0.562

Now, let's square both sides of the equation:
(√d)² = (0.562)²
d = (0.562)² = 0.316 ≈ 0.32

Therefore, <span> the approximate depth (d) of water for a tsunami traveling at 200 kilometers per hour is 0.32 km.</span>
5 0
3 years ago
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Help ASAP!!! Will give brainliest!!
lora16 [44]

Answer:

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Step-by-step explanation:

8 0
3 years ago
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