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Rudiy27
2 years ago
12

What is the distance between the points M(–21, –7) and N(–5, –7)?

Mathematics
2 answers:
Brrunno [24]2 years ago
5 0

Answer:

(16,0)

Step-by-step explanation:

(-21,-7) - (-5,-7)

god bless hope this helps (sorry if i am right all that matters is i tried) thank you

Masteriza [31]2 years ago
3 0

Answer:

16.

Step-by-step explanation:

|-21| - |-5| = 16

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I need help with these two equations
Ivan

for these you need to rearrange the equations and do substitutions.

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 now substitute that equation for x in the 2nd one so x + 2y = 8 becomes

5-y + 2y = 8 2y - y becomes 1y which becomes y then subtract 5 from each side to get y =3

now replace y with 3 in the first equation x = 5-3 so x = 2 

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 same type of work for #4

2x-y=6 ,S0 y = 2X+6

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3 years ago
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KIM [24]

Answer:

Step-by-step explanation:

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2 years ago
Are these fractions equivalent
kykrilka [37]

Answer:

Equivalent

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6 0
2 years ago
Read 2 more answers
Suppose that the useful life of a car battery, measured in months, decays with parameter 0.03 . We are interested in the life of
scZoUnD [109]

Answer:

a) X ~ e(0.03)

b) μ = 100/3

c) \sigma = 100/3

d) A battery is expected to last 100/3 months (33 months and 10 days approximately).

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Step-by-step explanation:

a) The life of a battery is usually modeled with an exponential distribution X ~ e(0.03)

b) The mean of X is μ = 1/0.03 = 100/3

c) The standard deviation is \sigma = 1/0.03 = 100/3

d) The expected value of the bateery life is equal to its mean, hence it is 100/3 months.

e) The expected value of 7 (independent) batteries is the sum of the expected values of each one, hence it is 7*100/3 = 700/3 months.

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3 years ago
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alex41 [277]
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2 years ago
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