The answer is A. 42
Solution:
Let x= ones digit, y=tens digit
1st condition (original number) : 7(x+y)=10y + x
2nd condition (new number by reversing the digits): 18+x+y=10x+y
simplifying:
1st condition: 6x=3y
2nd condition: x=2
substituting x=2 to 6x=3y
<span>y=4</span>
Answer:
The area of the circle is 28.26.
Step-by-step explanation:
πr =9.42
Using that, we can find the radius, which will help us find the area of the circle.
9.42/π = 3 (I used 3.14 for π)
The formula for area of a circle is:
πr^2
Plug our values in.
π(3^2)
9π
28.26
The area of the circle is 28.26.
To sum, Min would need to first figure out the radius of the circle, and then use the radius to find the area of the circle. She can figure out the radius by dividing 9.42 by π, and find the area with the formula πr^2.
The Answer is B.
Sol: (6/3x^(3-4))^2
= (2/x)^2
=4/x^2
Answer:
The 500 mice would be the carrying capacity of the field being studied.
Step-by-step explanation:
For the first year of study, the mouse population demonstrates exponential growth.
But by third year, the mouse population has stabilized at approximately 500 mice.
Thus, this 500 mice would be the carrying capacity of the field being studied.
Carrying capacity is defined as the measure to demonstrate the maximum population size that any given environment can sustain for an unspecified time period.
