Answer:
x=2
Step-by-step explanation:
3x^2=12 divide both sides by three
x^2=4 now find the square root of both sides
x=2
If they lose 72% of their weight, then they are only 28% of the original amount. Let n be the original weight of the mushrooms. Then:
0.28n=12.25
n=12.25/0.28=43.75 lbs of mushrooms necessary to start with
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Answer:
This is how you graph the function.
Answer:
“The width of the compass is adjusted to DE, and an arc is drawn from point F.”
An expression has numbers, variables, and mathematical operations. The equation that must be true so that x²+mx+m is a perfect square trinomial is x²+mx+m=(x+2)².
<h3>What is an Expression?</h3>
In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
A perfect square trinomial is in the form (a+b)²=a²+b²+2ab. If we compare the perfect square trinomial x²+mx+m, we will get that the value of m should be such that it satisfies the equation . Since there is only one value that can satisfy this equation that is 2.
Therefore, the equation that must be true so that x²+mx+m is a perfect square trinomial is x²+mx+m=(x+2)².
Learn more about Expression:
brainly.com/question/13947055