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makvit [3.9K]
2 years ago
8

If Ralf can bike in 45 kilometers in 3 hours,what will be his average rate of biking

Mathematics
1 answer:
Varvara68 [4.7K]2 years ago
6 0

Answer:

C.15 km/h

Step-by-step explanation:

speed= distance/time

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for what values of A does the acute angle formed by the lines 3x+2y=10 and Ax-2y=3 have measure of 45 degree
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Suppose an airport metal detector catches a person with metal 99% of the time. That is, it misses detecting a person with metal
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The probability of missing the first metal-carrying person is P(x≤50)=0.395

Step-by-step explanation:

We define as success to: missing metal carrying detection.

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3 years ago
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3 years ago
Help me solve this statistics question please!!
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7 0
3 years ago
The mass of an electron is approximately 9 × 10-28 grams, while the mass of a neutron is approximately 2 × 10-24 grams. Which of
aalyn [17]

Answer: the mass of a neutron is approximately 2,000 times the mass of an electron

Step-by-step explanation:

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=  (2/9) x10^{-24--28}

=  (2/9)x10^{-24+28}

≈  0.2222x10^{28-24}

≈ 0.2222x10^{4}

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- so 2222 is approximately 2000 times

- therefore, the mass of a neutron is approximately 2,000 times the mass of an electron

hope this helps :)

4 0
2 years ago
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