Hi can anyone tell me the answer

Mathematics

1 answer:

AnnyKZ [126]3 years ago

3 0

Answer:

$\frac{4}{5}$

Step-by-step explanation:

Total no. of outcomes = 20

No. of green counters = 16

Therefore, Probability of getting green counter

$= \frac{16}{20} = \frac{4}{5}$

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If x2 mx m is a perfect-square trinomial, which equation must be true? x2 mx m = (x – 1)2 x2 mx m = (x 1)2 x2 mx m = (x 2)2 x2 m

Leno4ka [110]

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 $m^2+2m$ . Since there is only one value that can satisfy this equation that is 2.