Its just like if u have the #, 8×4-3*2+7
step 1 ; u find the grouping symbols PEMDAS ; 8×4 = 32
Rewrite ; 32-3*2+7
go to the next step ; 3 × 2 = 6
Rewrite ; 32-6+7
next ; 32 - 6 = 26
26 + 7 = 33
so 33 is your answer .
The answer is C. (2x+5)(2x+5)
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.
Read more on discriminant;
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Answer:
r = 1
Step-by-step explanation:
Solving the equation for r gives ...
r = y/x
Using the first line of the table, we find r to be ...
r = 5.8/5.8 = 1
The constant of proportionality is r = 1.
