The given quadratic expression; 5b² -6b -2 is prime because the discriminant is not a perfect square.
<h3>
What is the discriminant of the expression?</h3>
According to the task content; it is required to identify if the expression is prime.
On this note, it follows that the discriminant of the expression can be evaluated as follows;
= 36 -(4× 5 × -2)
= 76.
Hence, the expression is prime since 76 is not a perfect square.
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Answer:
6 inch
Step-by-step explanation:
If you remember the concept of how to find volume of cube then its pretty easy.
You find it by multiplying the length of one side by itself 3 times.
In this case we have to do opposite so we have to just find the cube root of 216 which is 6.
Pls make me brainliest if you find it helpful.
Answer:
x = - 1, y = 4
Step-by-step explanation:
A. We are going to use elimination method because we have +2y and -2y, and when we add these equations +2y and -2y are going to be eliminated.
B.
x + 2y = 7
<u>+ 3x - 2y = -11</u>
4x = - 4
x = - 1
x + 2y = 7
-1 + 2y = 7
2y = 8
y = 4
