The given quadratic expression; 5b² -6b -2 is prime because the discriminant is not a perfect square.
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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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The answer is 72 because yeah I’m bad at explain but a line is 180 so 180-108=72
Answer:
Form an equation:
let x be the price of a shirt
Then, the price of a sweater would be x - 5
So you would have:
4(x - 5) + 3x = 200
simplify
4x - 20 + 3x = 200
7x - 20 = 200
add 20 to both sides
7x = 220
divide both sides by 7
x = about 31.43
That means the cost of the sweater would be 31.43 - 5 = 26.43
Answer:
-3a-7b-12
Step-by-step explanation:
(5a-4)-(8a+7b+8)
Distribute the minus sign
(5a-4)-8a-7b-8
Combine like terms
5a -8a -7b -4-8
-3a-7b-12
I would draw a line graph going from your staring time and fill level until your "pool" is full. Keep the time along the bottom and fill level along the side