How to solve 7x-20=2x+25
2 answers:
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Answer: 20 ft³
Step-by-step explanation:
volume of triangular pyramid =
- b = base area = 10 ft
- h = height = 6 ft
Therefore, the volume is:
Answer:
See attached
Step-by-step explanation:
Given function:
- y = -2x² + 5x + 8
Table and graph are attached
Zeros are included in the graph
<u>Zero's are obtained:</u>
x = 0 ⇒ y = 8
y = 0 ⇒ Solving quadratic equation
- -2x² + 5x + 8 = 0
- x = (-5 ± √(25 + 2*4*8))/-4
- x = 3.608
- x = -1.108
So zeros are (0, 8), (3.608, 0) and (-1.108, 0)
You can see that the function is graphed for every number x that is greater than or equal to zero.
So we write that the domain is
.
So we write that the domain is