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3 years ago

Please solve this for me!!!!

Mathematics

1 answer:

IRINA_888 [86]3 years ago

6 0

323 because I did the quiz and got it right txt me if you need help

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Andreas93 [3]

Answer: Group 12

Step-by-step explanation: The element is Mercury.

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3 years ago

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Order the following numbers from LEAST TO GREATESTI! 16+ 4 = 2.5 7-8) = 21

Lapatulllka [165]

Answer:

-1, 2.5, 20, 21

Step-by-step explanation:

16 plus 4 is 20

2.5

7-8 is -1

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3 years ago

Which one is greater 10 squared or 22/7

GenaCL600 [577]

Answer:

(22/7)²

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3 years ago

A cooler has a temperature of 32 degrees Fahrenheit. A bottled drink is placed in the cooler with an initial temperature of

FinnZ [79.3K]

Answer:

$k \approx 0.44$

Step-by-step explanation:

Given function:

$f(t) = (ce)^{-kt}+32$

As per question statement:

Initial temperature of bottle is 70 $^\circ F$ .

i.e. when time = 0 minutes, f(t) = 70 $^\circ F$

$70 = ce^{-k\times 0}+32\\\Rightarrow 38 = ce^{0}\\\Rightarrow c = 38$

After t = 3, f(t) = 42 $^\circ F$

$42 = 38 \times e^{-k\times 3}+32\\\Rightarrow 42-32 = 38 \times e^{-3k} \\\Rightarrow 10 = 38 \times e^{-3k} \\\Rightarrow e^{3k} = \dfrac{38}{10}\\\Rightarrow e^{3k} = 3.8\\\\\text{Taking } log_e \text{both the sides:}\\\\\Rightarrow log_e {e^3k} = log_e {3.8}\\\Rightarrow 3k \times log_ee=log_e {3.8} (\because log_pq^r=r \times log_pq)\\\Rightarrow 3k \times 1=log_e {3.8}\\\Rightarrow 3k = 1.34\\\Rightarrow k = \dfrac{1.34}{3}\\\Rightarrow k \approx 0.44$

Hence, the value is:

$k \approx 0.44$

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3 years ago

The table below shows the scores on a science test.

VLD [36.1K]

Answer:

Step-by-step explanation:

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3 years ago