3 years ago

I just want to have fun

Mathematics

2 answers:

jeka57 [31]3 years ago

7 0

Answer:

ok then have fun

..........

Alisiya [41]3 years ago

3 0

What do you mean ? ………

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A thermometer is removed from a room where the temperature is 70° F and is taken outside, where the air temperature is 40° F. Af

fgiga [73]

Answer:

53.3324

Step-by-step explanation:

given that a thermometer is removed from a room where the temperature is 70° F and is taken outside, where the air temperature is 40° F.

By Newton law of cooling we have

T(t) = $T+(T_0-T)e^{-kt}$

where T (t) is temperature at time t,T =surrounding temperature = 40, T0 =70 = initial temperature

After half minute thermometer reads 60° F. Using this we can find k

$T(0,5) = 40+(70-40)e^{-k/2} = 60\\e^{-k/2} =2/3\\-k/2 = -0.4055\\k = 0.8110$

So equation is

$T(t) = 40+(30)e^{-0.8110t}\\$

When t=1,

we get

$T(1) = 40+(30)e^{-0.8110}\\\\=53.3324$

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3 years ago

Which whole number property is represented? 10+ 0 = 10

s344n2d4d5 [400]

Answer:

Step-by-step explanation:

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3 years ago

What is 8.04 × 101? 0.804 8.04 8.4 80.4

Lerok [7]

8.04 * 100= 804

You move the decimal point two times to the right

8.04*101=812.04

6 0

2 years ago

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A carpenter is cutting down dowels from a piece of wood that is 10 inches long. How many 1/2-inch dowels can the carpenter cut?

Reika [66]

He can cut 5, because 10in divided by 2 is 5.

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3 years ago

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What is the equation of the line that passes through the point (5,0) and has a slope of -1

erica [24]

Answer:

y = -x + 5

Step-by-step explanation:

X, Y, and B is given using fomula y = m(x) + b

Subsitute those variables.

0 = -(5) + b

Solve for m.

0 = -5 + b

+5 +5

b = 5.

Then plug in the b and take out the x and y.

y = -x + 5

8 0

3 years ago

I just want to have fun​

I just want to have fun