56/h +3y for h =4 and y =3
2 answers:
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Answer:
A.
Step-by-step explanation:
1) to rewrite the given equation:
f(x)=2(x²+4x)-3; ⇔ f(x)=2(x²+4x+4)-3-8; ⇔ f(x)=2(x²+4x+4)-11; ⇔ f(x)=2(x+2)²-11;
2) the roots are:
3) finally, the correct answer is A.
The ratio can be determined as,
Thus, the requried ratio is 7:12.
Answer:
$1.375 ≈ $1.38
Step-by-step explanation:
First, set up a proportion:
Then, cross-multiply and solve for x: