Answer:
y = -1/4
Step-by-step explanation:
y/5 +3/10 = (y+2)/7
The LCD is 10·7 = 70. Multiplying the equation by 70 gives ...
14y +21 = 10(y +2)
14y +21 = 10y +20 . . . . eliminate parentheses
4y + 21 = 20 . . . . subtract 10y
4y = -1 . . . . . . . . . subtract 21
y = -1/4 . . . . . . . . .divide by 4
_____
<em>Check</em>
(-1/4)/5 +3/10 = (-1/4 +2)/7 . . . . . substitute for y
-1/20 +6/20 = (7/4)/7 . . . simplify a bit, rewrite 3/10
5/20 = 1/4 . . . . . . . . . . true
Answer:
Option B is correct.
Initial amount (a) = 30 and growth factor(b) = 8.3
Step-by-step explanation:
An exponential function is of the form: 
....[1]
where
a represents the initial amount
b represents the growth factor and x is the variable
Given the function: 
On comparing given equation with [1] we get;
a = 30 and b = 8.3
Therefore, the initial amount(a) = 30 and growth factor(b) = 8.3
Answer:
1. A.) Blocks a river and creates a large lake
2. D.) More plant-eating animals would survive
3. D.) Shorter time for plants to produce seeds.
4. B.) Raccoons found more food living near people
5. D.) Make it difficult for animals to move through the forest.
Answer: x^2 + 6x + 8
Step-by-step explanation: (x+2)(x+4) = x^2 + 4x + 2x + 8
= x^2 + 6x + 8
