Answer:
<h2><u>
√
3</u></h2>
Step-by-step explanation:
This type of situation applies first order type of equation. In this case, the equation is ln( A0/A1) = kt. A is the number of bacteria cultured. A0 is equal to 150. when A1 is 300, t is 20 minutes. that is ln (150/300) = k *20 the other condition is represented by ln (A0/1200) = 60k. k is equal to -0.0347. hence the first order equation is equal to ln (150/A1) = -0.0347 t
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Answer:
<h2><u>
<em>7</em></u></h2>
Step-by-step explanation:
<em>Divide 63 by 9 which is 7</em>
<h2>
<em> Work-63÷9=7 </em></h2>
Answer:
15.6
Step-by-step explanation:
We can take this equilateral triangle and split it in half to form a 30-60-90 triangle. This will have base of 3, and height of 3
. The area of this is
1/2 ( 3 )( 3
), but the 1/2 cancels since we have 2 halves of the triangle, and so the area is 9.
is approx. 1.732, so multiplying this by 9, our answer is 15.6