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3 years ago

Answer this questionnnnnnnnnnnn

Mathematics

1 answer:

-BARSIC- [3]3 years ago

4 0

There would approximately be 36 ordered triples

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A calculator is required to obtain the final answer on this question. A solid metal sphere at room temperature 20oC is dropped i

yKpoI14uk [10]

Answer:

T = 47.1875°C

Step-by-step explanation:

Given:

Surrounding temp, Ts = 100°C

Initial Temperature ,T0= 20°C

Increase in temperature = 15°C

Final temperature, T = 20 + 15 = 35°C

Time, t = 9 seconds

Let's take Newton's law of cooling:

$T - Ts = (T_0 - Ts)e^k^t$

We'll solve for k

$35 - 100 = (20 - 100)e^9^k$

$-65 = (-80)e^9^k$

Divide both sides by -5

$13 = (16)e^9^k$

$9k = ln (\frac{13}{16})$

$k = \frac{1}{9} ln (\frac{13}{16})$

$k = -0.02307104053$

Let's now find the temperature of the ball after 18 seconds in boiling water.

Use the Newton's equation again:

$T - Ts = (T_0 - Ts)e^k^t$

$T - 100 = (20 - 100)e^-0.0^2^3^0^7^1^0^4^0^5^3^*^1^8$

$T - 100 = (-80)e^-0.0^2^3^0^7^1^0^4^0^5^3^*^1^8$

$T - 100= -52.8125$

$T = 100 - 52.8125$

T = 47.1875°C

Temperature of the ball after 18 seconds in boiling water is 47.1875°C

5 0

3 years ago

Round 2826 to the nearest hundred. PLEASE HELP ME ASAP!!!

kotykmax [81]

It is 30000 i think dang it

5 0

3 years ago

Read 2 more answers

Which relationship between x and y in the equation shows a proportional relationship?

Harlamova29_29 [7]

Answer:

the answer is c

Step-by-step explanation:

at least they got a relationship

6 0

3 years ago

The original sales price of a jacket to the original price is 3:4. The original price is $64 what is the sales price

natka813 [3]

So we need to find a number that has the same ratio to 64 as 3 has to four. We do this by diving 64 into 4:(this is 16): so the two ratios are different by 16. To find the remaining number we multiply 3 by 16: this is 48. So 48 has the same ratio to 64 as 3 has to 4.

And 48 is the answer!

6 0

3 years ago

The temperature was -5 Fahrenheit and then fell 8 Fahrenheit

Umnica [9.8K]

Answer:

if your looking for what the temperature is now then it is -13 Fahrenheit

7 0

3 years ago