Alright well for (A) you will round $5280 to $5300. Then you multiply $5300 by 28.
For (B) you just round up. So again $5280 rounds up to $5300.
Answer:
√8·x + 4 > 20
Step-by-step explanation:
Area of Square lawn = 8·x feet²
Now, area of square = (side)²
⇒ Side length of square lawn = √8·x feet
Now, extended length of the lawn from both sides = 2 + 2 = 4 feet
Now, new side length of the square lawn = 8·x + 4
New area of the square lawn = (√8·x + 4)² square feet
Area of the brick purchased = 20 × 20
= (20)² square feet
Now, it is given Aroldo does not have enough feet of bricks
⇒ Area of bricks purchased is less than area of the square lawn with new dimensions
⇒ (√8·x + 4)² > (20)²
⇒ √8·x + 4 > 20
Answer:
Hi there!
Your answer is:
<em>8</em><em>.</em><em>6</em><em> </em><em>units</em>
Step-by-step explanation:
The distance formula is
√ ( (x2-x1)^2 + (y2-y1)^2 )
In your points:
A (-3, -2)
-3 is x1
-2 is y1
B (4, -7)
4 is x2
-7 is y2
Plug in to distance formula
√ ( 4-( -3))^2 + ( -7 - (-2))^2
√ (4+3)^2 + (-7+2)^2
√ (7^2) + ( -5)^2
√ 49 + 25
√ 74
This equals roughly 8.6 units!