Answer:
144 ft
Step-by-step explanation:
The object's maximum height is the same as the y-coordinate of the vertex.
To find that, first, finds the x- coordinate(t).You can find it by: first identifying a, b and c.
Multiply the b by negative 1 or simply change its sign and divide it by 2a.
Afterward, plug the answer in the equation to find y, your answer.(ax+bx²+c=-16t²+64t+80).
Therefore, a=-6, b= 64 and c=80-64/2(-16)=-64/-32=2-16(2)²+64(2)+80=144 ft
So the maximum height of the object, when launched 64ft/sec from a platform that is 80 ft high, is 144 ft
Ans
y>-5x+3 meen the area abuv the strate line y=-5x+3
line go thru point (0,3) & hav slope=-5=downhill
Answer:
Step-by-step explanation:
Step 1: Simplify both sides of the inequality.
Step 2: Add 3x to both sides.
Step 3: Add 4 to both sides.
Step 4: Divide both sides by 7.
Answer:
(2,3)
Step-by-step explanation:
(2)(2) + (3)(3) = 13
Answer:
No
Step-by-step explanation:
Quadratic equations usually has two solutions. However, in some cases, the other solution may not be real. When using quadratic formula to get solution, the squareroot generates a positive and negative number. Finally, some negative numbers may not be realistic to conclude as solutions for example when you find x as -5 but the expression needs number of items. In other cases, the squareroot of the number may be that the number is negative eg √-12 hence we don't get real numbers in this case. The solutions must be two numbers but not all the numbers will be real numbers.
