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Maru [420]
3 years ago
5

Tehtävä 44b) 12,2,10,4, ,​

Mathematics
1 answer:
Tpy6a [65]3 years ago
7 0

I am not sure it is 2i think

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Sally goes out to lunch and has the option
castortr0y [4]

Hello,

well, that depend on what your asking. comment the answer choices so I can answer this question for you!

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3 0
3 years ago
Suppose you have a bag of red, blue, and yellow marbles. If the probability of picking a red marble is1/6 and the probability of
yulyashka [42]
The probabilities of picking a red, blue, and yellow marble must be equal to 1. so

P(R)+P(Y)+P(B)=1

1/6+1/2+P(B)=1  making all terms have a common denominator of 6 we have:

1+3+6P(B)=6

4+6P(B)=6

6P(B)=2

P(B)=2/6

P(B)=1/3
4 0
3 years ago
A right angle has an area of 18 square inches.if the triangle has two sides that are the same length, what are the lengths of th
NeX [460]
I hope this helps you



this triangle is isosceles right triangle


base=height


Area=base×height /2


18=b×b/2


b^2=36


b=6
8 0
3 years ago
Mr. Ratchett, an elderly American, was found murdered in his train compartment on the Orient Express at 7 AM. When his body was
nasty-shy [4]

Answer: Mr. Ratchett died approximately at 2AM.

Step-by-step explanation: <u>Newton's</u> <u>Law</u> <u>of</u> <u>Cooling</u> shows the cooling rate between a body and the environment, by stating that the rate is proportional to the difference in temperatures between them.

Mathematically, it is represented as:

\frac{dQ}{dt}=\alpha.A.(T_{s}-T)

This differential equation solved, gives the solution:

T(t)=T_{s}+(T_{0}-T_{s})e^{-kt}

where

T_{s} is temperature of the environment

T_{0} is the initial temperature of the body

k is a parameter dependent of heat transfer coefficient, heat capacity and area of the body

t is time required to change the temperature

For the murder on the Orient Express, first determine parameter k.

In 1 hour, Mr. Ratchett's body decrease 1°:

27=22+(28-22)e^{-1k}

5=6e^{-k}

e^{-k}=\frac{5}{6}

ln(e^{-k})=ln(0.834)

k = 0.1823

Using the parameter, find estimate time:

28=22+(37-22)e^{-0.1823t}

6=15e^{-0.1823t}

ln(e^{-0.1823t})=ln(0.4)

0.1823t = 0.9163

t=\frac{0.9163}{0.1823}

t ≈ 5 hours

The body was found at 7AM. So, it took approximately 5 hours to cool down to 28° at that time. Therefore, Mr. Ratchett died at 2AM.

5 0
3 years ago
How do I make 3.0035 into a fraction?
olga55 [171]
Make 3.0035 into a proportion, or over 1000000, to make it a whole number. 30035/1000000.
6 0
4 years ago
Read 2 more answers
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