2 years ago

A group of 30 people are going to run a race. The top three runners earn gold silver, and bronze medals .

1 answer:

3 0

You would be correct. There is a 1/10 chance of getting to the top 3. I don’t know the question exactly, but I hope this helps anyway.

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For each of the functions below, indicate whether the function is onto, one-to-one, neither orboth. If the function is not onto

Karo-lina-s [1.5K]

Answer:

$f_{1} :Z \rightarrow Z$ is one to one mapping, it is not onto mapping

Step-by-step explanation:

$f_{1} :Z \rightarrow Z\\ f_{1} (x) = x^{3}$

f₁(x) is one to one mapping

Let $x, y \epsilon Z$

f₁(x) = f₁(y):

x₁³ = y₁³

f₁(x) is not onto mapping

Example: If f₁(x) = 7,

x₁³ = 7

$x_{1} = \sqrt[3]{7}$

x₁ is not an element of Z

$f_{1} :Z \rightarrow Z$ is one to one mapping, it is not onto mapping

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3 years ago

Which is larger 0.7 or 3/4

Ksenya-84 [330]

3/4 is 0.75.
3/4 is larger than 0.7

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3 years ago

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The Beach!

anzhelika [568]

Emily- Jellyfish, Kite, Lolly
Ryan- Starfish, Football, Ice Cream
Tyler-Crab, Cricket, Hot Dog

6 0

3 years ago

What is the solution (a, c) to this system of linear equations?

weeeeeb [17]

This is how you do it :) let me know if you have any questions. Hope this helps :)

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3 years ago

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Find the arc length along a circle of radius 10 subtended by an angle of 215 degrees

natka813 [3]

Answer:

arc = 25.29

Step-by-step explanation:

first find the circumference:

C = 2r(Pi) = 2(10)(3.14) = 62.8

since subtended, then we're looking for these opposite angle of 215 degrees:

360 - 215 = 145 degrees

62.8/360 = 0.1744 per degree

0.1744 x 145 = 25.29

7 0

3 years ago