Answer:
The top choice.
Step-by-step explanation:
If a quadratic function is a perfect square trinomial, its graph will intersect the x-axis exactly once.
Expanded, this is
There is only one value of x which makes the "two" factors equal to zero, and that is -1, where the graph touches the x-axis.
See the attached graph. is the purple graph.
The green graph is an example of a quadratics which is NOT a perfect square. It's the function .
If the number is 1-4 change it and everything else to 0, if it's 5-9 add one. 16 rounded to the nearest ten is 20, the 6 is between 5 and 9 so we added one the the number in front. 84.28 to the nearest dollar would be $84, since the 2 is 1-4 we changed it and the 8 to 0's. 4,680 rounded to the nearest thousand is 5,000 since the 6 is 5-9. 27.9565 to the nearest cent is 27.96 since the 6 is 5-9. :) I hope this helps :)
Ok so you would times 8.4*10 and get 84-6 which is 78, and 6.5*10 which is 65-6, so then you get 78+59=137 :)
49pi
Mark brainliest please mark
Hope this helps you
V = height x cross section area
CSA = 6 x 5.5 = 33
Height of sand = 148.5 / 33 = 4.5 inches