We have that
<span>f(x) = x/4 -3
g(x)= 4x</span>²<span>+2x-4
find (f+g)( x)
step 1
adding the two functions together to create a new function.
[x/4 -3]+[4x²+2x-4]
step 2
making everything have a common denominator of 4 we get:
[(x-12+16x²+8x-16)]/4
step3
combine like terms in numerator
(16x²+9x-28)/4-----------> 4x²+(9/4)x-7
the answer is </span>4x²+(9/4)x-7
Answer:
-x + 1
Step-by-step explanation:
-10x^2 - x + 6 + 10x^2 - 5 = -x + 1
The 10x^2 cancels out with the -10x^2
<span>Using the snowball method to pay off debt is fairly basic and simple. In this method you begin by clearing the smaller debts first. Once these are cleared you have more money that you can put towards them because you no longer have payments on the smaller debts. This method is simple and often helps eliminate debts quicker.</span>
Answer:
21 kWh
Step-by-step explanation:
1. Subtract 25% from the original amount.
25% of 28 kWh is ...
0.25 × 28 kWh = 7.00 kWh
Subtracting this from 28 kWh, we find the usage after reduction to be ...
28 kWh - 7 kWh = 21 kWh
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2. We know that if we reduce 100% of a quantity by 25%, then the resulting amount is (100 -25)% = 75% of the original. As a fraction, this is 75/100 = 3/4 of the original amount. Then the reduced usage is ...
(3/4) × (28 kWh) = 3·(7·4)/4 kWh = 3·7 kWh = 21 kWh
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Mario must reduce his usage to 21 kWh or less.
