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Sidana [21]
3 years ago
10

a rational number m is called a perfect square if and only if for some positive rational number, m equals​

Mathematics
1 answer:
dmitriy555 [2]3 years ago
8 0
If m= a number that can be square rooted to give a whole number
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The chance that a person is left handed is 0.15 or 15%. if you randomly select 8 people, what is the probability that they are a
Wittaler [7]
Answer: The probability that all 8 people are right handed is about 27.25%.

If the chance a person is left handed, the chance a person is right handed is 85%.

Now, we just need to find the chance that this 85% event happens 8 times in a row.

Simply, multiply it by itself 8 times.

(0.85)^8 = 0.2725

There is a 27.25% chance all 8 people are right handed.
8 0
4 years ago
Which of the following constants can be added to x^2+2/3 to form a perfect square trinomial?
Lera25 [3.4K]

As your question is stated, there is no answer!


I'm going to assume the polynomial you meant is:


x^2 + \frac{2}{3} x


To create a perfect square trinomial, take half the coefficient of x and then square it.


\left( \frac{1}{2} \times \frac{2}{3} \right) ^2 = \left(\frac{1}{3} \right) ^2 =\frac{1}{9}


In all problems like this, you want to square half the coefficient of x -- always half.

4 0
3 years ago
If A = ( NEGATIVE 1,negative 3) and B = ( 11, negative 8) what is the length of AB
enot [183]
It shoukd be A if im not mistaken
7 0
4 years ago
find the slope and y-intercept of the line that is parallel to y= -2x - 5 and passes through the point (-3,-3)
siniylev [52]

Answer:

-9

Step-by-step explanation:

Slope is the same so y=-2x+b

Plug in x and y

-3=-2(-3)+b

-3=6+b

b=-9

(Y-intercept is -9)

4 0
4 years ago
I need this answer quickly
iragen [17]
X = 23 is the answer
7 0
3 years ago
Read 2 more answers
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