A rectangular door measures 2.5m by 1m. How long is the diagonal of the door

Mathematics

1 answer:

ra1l [238]3 years ago

7 0

Just do the multiplication

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7x-4(6-x)+12 if x = 6

aev [14]

Answer:

Step-by-step explanation:

7(6)-4(6-6)+12

42-0+12

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3 years ago

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UNO [17]

I hope this helps you

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3 years ago

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jeka94

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Find the quotient 9 3/5 divided 8/15

Whitepunk [10]

The answer is 81/8
Alternative Forms:
10 1/8 or 10.125

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3 years ago

A cup of coffee contains about 100 mg of caffeine. Caffeine is metabolized and leaves the body at a continuous rate of about 12%

Mamont248 [21]

Answer:

a. $A = C_{0}(1-x)^t\\x: percentage\ of \ caffeine\ metabolized\\$

b. $\frac{dA}{dt}= -11.25 \frac{mg}{h}$

Step-by-step explanation:

First, we need tot find a general expression for the amount of caffeine remaining in the body after certain time. As the problem states that every hour x percent of caffeine leaves the body, we must substract that percentage from the initial quantity of caffeine, by each hour passing. That expression would be:

$A= C_{0}(1-x)^t\\t: time \ in \ hours\\x: percentage \ of \ caffeine\ metabolized\\$

Then, to find the amount of caffeine metabolized per hour, we need to differentiate the previous equation. Following the differentiation rules we get:

$\frac{dA}{dt} =C_{0}(1-x)^t \ln (1-x)\\\frac{dA}{dt} =100*0.88\ln(0.88)\\\frac{dA}{dt} =-11.25 \frac{mg}{h}$

The rate is negative as it represents the amount of caffeine leaving the body at certain time.

3 0

3 years ago