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2 years ago

Whats the slope of (-1, 8) and (-1, -4)

Mathematics

2 answers:

Gnesinka [82]2 years ago

5 0

The slope is undefined

Vesnalui [34]2 years ago

4 0

Answer:

-12/0

Step-by-step explanation:

(-1, 8)= (x1, y1)

(-1, -4)= (x2, y2)

Now,

Slope(m) = y2- y1 / x2- x1

= -4- 8 / -1 - (-1)

= -12 / 0 [Answer]

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Solve (4x2 - 1)(x + 2)

Natalija [7]

Answer:

4x^3+8x^2−x−2

Step-by-step explanation:

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2 years ago

A bird is sitting on a train A moving at a speed of 40 kmph. It sees another train B at a Distance of 200 ms with Speed of 60 km

Aloiza [94]

Solution:

Two trains are moving in opposite direction with Speed 40 kmph and 60 kmph. Make train B stationary and then take the Speed of train A relative to the train B. So relative Speed of train A = 40 + 60 = 100 kmph. Before it crashes into the stationary train B it has to travel a Distance of 200 m which it will do in (0.2/100 ) hours. During this duration, the average Speed of bird has been 10 kmph i.e. before the crash total Distance covered by the bird = 0.2 * 10/100 km = 20 meters.
Hope it helps

7 0

2 years ago

A restaurant

Brut [27]

into sixth slices because it will give you more money cause eighths slices will give u 15.00 and sixth slices give u 24.00

3 0

2 years ago

I have been asking and asking for help and not one hleped me all they did was troll and say dumb stuff that has nothing to do wi

Andreas93 [3]

Answer:

Try 120

Step-by-step explanation:

There are five dashes in between 100 and 200. Count up by 20s

6 0

2 years ago

A grocer bought sugar worth of 4500. He sold one-third of it at a pain of 10%. At what gain

damaskus [11]

Answer:

13%

Step-by-step explanation:

the cost price of 1/3 of the sugar = 1/3 x 4500 = 1500

gain= $\frac{selling price - cost price}{cost price}$ x 100

let x = unknown selling price

(x - 1500) / 1500 = 0.1

to solve for x, multiply both sides of the equation by 1500

x - 1500 = 150

x = 1650

the selling price of the 1/3 of sugar that yielded a 10% gain is 1650

to determine the gain percent of the remaining sugar, the selling price of the remaining sugar has to be determined . Let the selling price be represented by a

Based o the information in the question and the previous solution, the following equation can be derived

{(a + 1650) - 4500} / 4500 = 0.12

Solve for a

Multiply both sides of the equation by 4500

a + 1650 - 4500 = 540

a = 3390 = selling price of 2/3 of the sugar

Percent gain that the 2/3 of the sugar should be sold can be determined by taking the following steps

first find cost price of the 2/3 of sugar = 2/3 x 4500 = 3000

gain = (3390 - 3000) /3000 = 0.13 = 13%

3 0

2 years ago