<span><span><span>(<span>−<span>320x</span></span>)</span><span>(7)</span></span>16</span><span>=<span>−<span>140
The answer is -140
Hope this helps!
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Answer:
A and B
Step-by-step explanation:
using the law of exponents
• 
= 
, hence
= 
→ A
note that (- 3)² = 9 = 3², hence
= (3²)³ = 
→ B
i belive you add 17 on both sidees to find x
Answer:
y = -0.07x2 + 3.07x
Step-by-step explanation:
For each plant we add, there is a decrease of 70 grams for all plants from the inicial value of 3 kg of beans.
So, for 2 plants, we have (3 - 0.07) * 2
For 3 plants, we have (3 - 2*0.07) * 3
For x plants, we have (3 - (x-1)*0.07) * x
So we can model the final result of the amount of beans 'y' with the equation:
y = (3 - (x-1)*0.07) * x
y = (3 - 0.07x + 0.07) * x
y = (3.07 - 0.07x) * x
y = -0.07x2 + 3.07x
(In this equation we have a = -0.07, b = 3.07 and c = 0)
8:7...added = 15
(8/15(90) / 2= 48/2 = 24
(7/15(90) / 2 = 42/2 = 21
dimensions are : 24 ft by 21 ft
