The answer is: " 9a² + 7a " .
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Note: (3a)² + 7a = (3a)*(3a) + 7a = 9a² + 7a .
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<em>Answer:</em>
25.4639073013
Rounded is 25.4
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Answer:
The correct answer is "
".
Step-by-step explanation:
According to the question,
Number of students,
= 35
A ! mid term A,

B : final A,

Didn't start,

Now,
⇒ 

then,
⇒ 

hence,
The probability will be:
⇒ 
⇒
Answer:
p = -2
Step-by-step explanation:
p − 10p + -5p + 14p − -9p − 2 = -20
-9p + 9p + 9p = -20 + 2
9p = -18
p = -2
Since we know that a - 2 will equal 8, it is safe to assume that 8 + 2 = 10. Therefore a=10.