Answer:
6/5
Step-by-step explanation:
(42-18) / (35 - 15) = 24 / 20 = 6 / 5
Answer
0/6
2-3 I hope this helps you out!
Answer:
5' 10"
Step-by-step explanation:
We subtract by converting into one measurement. We will choose inches.
8'4"= 96"+4"=100" since 8' has 8(12) inches
2'6"=24+6=30" since 2' has 2(12) inches
Subtract.
100"-30"=70"
We convert back into feet and inches by dividing by 12.
70/12= 5' 10"
There are 2 roots for this equation.
The discriminant is given by b²-4ac. This is what goes under the square root in the quadratic formula. Since we will be taking the square root of this, if the discriminant is less than 0, there are no real roots; you cannot have a real square root of a negative number.
If the discriminant is equal to 0, there is 1 real root; the square root of 0 is 0, so the quadratic formula would yield one answer.
If the discriminant is greater than 0, there are 2 real roots. This is because taking the square root of a positive number gives a positive and negative result.
b in our equation is -7, a is 3 and c is 4:
b²-4ac = (-7)²-4(3)(4) = 49 - 48 = 1
There is 1 real root.
Alright so since the area of one side of the door is 2,880 inches squared and he wants to paint both sides, you must multiply that by 2.
2880 * 2 = 5760
Since he wants to put 2 coats of paint, this essentially means he wants to paint over everything twice so you must multiply by 2 once more.
5760 * 2 = 11520
This being the total surface area we are going to need to paint. So now we must discover the least amount of money Luke must pay. Knowing we need to cover 11,520 inches worth of door:
4400 * 2 = 8800
8800 + 2200 = 11000
This means we either need to pay another $7 or just buy three gallons.
Best option: Purchase 3 gallons of paint costing 30$
30$
