The area of the deck is :
A ( deck ) = 8 * 27.63 = 221.04 ft²
The area of the sheet of wood:
A ( sheet ) = 4 * 8 = 32 ft²
221.04 : 32 = 6.9 ≈ 7 ( we need a whole number )
Answer: He should buy 7 sheets of wood to cover the surface of the deck.
Answer:
1st or 3rd i think. hope this helps.
Answer:
Yes that's true
Step-by-step explanation:
Answer:
Below in BOLD.
Step-by-step explanation:
5x^2 - 6x - 2 = 0
Quadratic formula for ax^2 + bx + c = 0 is
x = [-b ± √(b^2 - 4ac)]/ 2a
Here we have a = 5, b = -6 and c = -2
so x = [-(-6) ± √((-6)^2 - 4*5*-2)]/ 2*5
= [ 6 ± √(36 + 40)] / 10
= 0.6 ± √76 / 10
= 0.6 ± 0.8718
= 1.4718, -0.2718
= 1.5, -0.3 to one decimal place.
x^2 + 3x = 40
x^2 + 3x - 40 = 0
We can factor this one:
(x - 5)(x + 8) = 0
x - 5 = 0 giving x = 5 and
x + 8 = 0 giving x = -8.
Answer x = -8, 5.
The numbers you are looking for are 23, 25, and 27. Let's start by defining a variable. Let x be the first of the three odd numbers. Since odd numbers are 2 apart, that means that the other two numbers are x + 2 and x + 4.
Now, their sum is x + (x + 2) + (x + 4) which equals 3x + 6.
Decrease that by the second number, x + 2. That means: 3x + 6 - (x + 2), which is equal to 2x + 4.
So now we know that 2x + 4 = 50, and we can solve that easily:
2x + 4 = 50
2x = 46
x = 23
Therefore, the three odd numbers are 23, 25, and 27. Hope this helps! Please mark Brainliest. Thank you v much! :)