Answer:
68
Step-by-step explanation:
just put the value of a and b in the expression and you will get the answer
20/a+7.b is
20/4+7×9
5+63
68
X^2+12x+6=0 subtract 6 from both sides...
x^2+12x=-6 halve linear coefficient, square it, and add it to both sides...
x^2+12x+36=30 now the left side is a perfect square...
(x+6)^2=30 take square root of both sides...
x+6=30^(1/2) subtract 6 from both sides...
x=-6-30^(1/2) and -6+30^(1/2)
Hello, if you want help I can help you!
So, your answers should be A and D
If I'm wrong correct me.
Answers:
a = 1/3
b = -6
c = 7
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Explanation:
The terms of the given expression rearrange to 
which is now in standard form (the exponents decrease when moving from left to right).
We can see that
a = 1/3
b = -6
c = 7
after matching that with the ax^2+bx+c form.
You have to add 1 1/4 + 1 3/4. Since they have common denominators you can just add all the numbers, 1+1=2, 1+3=4 since 4/4 is equal to one, you would add a one to the 2, so the answer would be 3. So Ed spent 3 hours doing homework during the weekend.
