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3 years ago

A sprinter can run 120 meters in 10 seconds. what is his average speed

Mathematics

2 answers:

Mariulka [41]3 years ago

7 0

Answer:

12 Meters Per Second

Step-by-step explanation:

Average Speed = Distance divided by time

Average Speed = 120 Meters / 10 Seconds

Average Speed = 12 Meters Per Second

MrMuchimi3 years ago

5 0

Answer:

if he runs 120 meters in 10 seconds then his average spend is 1.24111666667 every second

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Answer:

Step-by-step explanation:

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3 years ago

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What are the solutions to 3x^2 = 8x — 6?

Bond [772]

Answer:

First, let's move all terms to one side,

$\sf x^2-8x+6=0$

When given this form (ax^2+bx+c=0), there will be two solutions at the end.

1) $\sf x=\frac{-b+\sqrt{b^2-4ab} }{2b}$

2) $\sf x=\frac{-b-\sqrt{b^2-4ab} }{2b}$

where, a=1, b=-8, c=6

$\sf x=\frac{8+\sqrt{(-8)^2-4\times6} }{2} ,\frac{8-\sqrt{(-8)^2-4\times6} }{2}$

Simplify,

$\sf x=\frac{8+2\sqrt{10} }{2} ,\frac{8-2\sqrt{10} }{2}$

Simplify,

$\sf x=4+\sqrt{10}, 4-\sqrt{10}$

Hope it helps!

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1 year ago

What does |-100| equal?

EastWind [94]

The two straight lines around the number indicate absolute value. Absolute value is the distance from the number to zero (essentially how many marks away on a number line).

$0 - (-100)$
$0 + 100$
$100$

It is equal to 100.

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2 years ago

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