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Elodia [21]
3 years ago
12

The sign of the product of -350 and 89 is

Mathematics
1 answer:
nadezda [96]3 years ago
8 0

Answer:

Negative

Step-by-step explanation:

Multiplication rules for integers

Positive integer x Positive integer= Positive integer

Negative integer x Positive integer= Negative Integer

Negative integer x Negative integer=Positive Integer

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3 years ago
A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods trai
Flauer [41]

The length of the goods train is 270 meters.

Given that, a goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds.

<h3>What is the distance formula with speed and time?</h3>

Speed is defined as the rate at which an object moves from one place to another in a given interval of time. It is a scalar quantity as it defines only the magnitude not the directions of an object moving. The S.I. unit of speed is m/s.

The speed of a moving object can be calculated as Speed = Distance / Time.

Now, to convert km/h to m/sec multiply the measure by 5/18.

That is, 72 × 5/18 = 20 m/sec

Let the length of the train be x metres.

So, then (x+250) / 26 = 20

⇒x+250=520

⇒x=270 meters

Therefore, the length of the goods train is 270 meters.

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brainly.com/question/7359669.

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5 0
1 year ago
(5x + 2) 6x<br> Solve for x and y<br> X =<br> y =
leva [86]

Answer:

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Step-by-step explanation:

4 0
2 years ago
A business committee decided to increase the area of their square parking lot. They increased the width of the parking lot by 60
valina [46]
Kaks pluss kaks on neli miinus
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3 years ago
Y varies directly with X if y equals 39 when x equals 3 What is the value of y when x equals 2
igomit [66]

Answer:

y = 26 when x = 2

Step-by-step explanation:

Y varies directly with X

y= kx

39 = 3k

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y = 13x

y(2)= 13(2) = 26

4 0
3 years ago
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