Answer:
27
Step-by-step explanation:
To evaluate f(8) substitute x = 8 into f(x)
f(8) = × 8² - (
× 8 + 3)
= × 64 - (2 + 3)
= 32 - 5
= 27
100 points the right answer please the set designer for a play painted some background scenery on a large piece of plywood. He u
sed a 13-foot-long pole to hold the piece of plywood upright, as in the diagram below. What is h, the total height in of the feet of the piece of plywood
13ft 2ft 5ft
13ft 2ft 5ft
1 answer:
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Answer:
Step-by-step explanation:
The given postulate If two lines intersect, then they intersect in exactly one point is true because whenever the two lines intersect they intersect at one point only and we know that a postulate is a statement that we accept without proof.
The given theorem If two distinct planes intersect, then they intersect in exactly one line is true as theorem is a statement that has been proved and it has been proved that if two distinct planes intersect, then they intersect in exactly one line.
The figures are drawn to prove them.
