Answer:
Step-by-step explanation:
r(x)= (x-3)(x+5)
= x²+5x-3x-15
=x²+2x-15
Answer:
4
Step-by-step explanation:
Answer:
fraction collin correct.
Solution:
Collin correct 16 out of 80.
It means total correct answer would be 16.
Total number of question would be 80
We have to find the fraction of correct answer.
Fraction =
We get fraction,
Now, we reduce the fraction if possible.
We reduce fraction by divide numerator and denominator by same number .
Here we divide numerator and denominator by 16 and we get ,
Simplest fraction
Given equation :
2/3 y + 15 = 9.
We need to subtract 15 from both sides first.
<h3>2/3 y + 15-15 = 9 -15 <em>Subtraction property of equality.</em></h3>
Now, we need to simplify it.
We get
<h3>2/3 y = - 6 <em> simplification </em></h3>
Now, we need to get rid 2/3 from left side.
On multiplying both sides by 3/2,
<h3>2/3 y * 3/2 = - 6 * 3/2 <em>Multiplication property of equality.</em></h3>
On simplifying, we get
<h3>y = -9 <em>simplification </em></h3>