HELP PLZ15 or 16 I am confused
1 answer:
Answer:
15. It is a function
16. It is a function
Mapping diagram is attached for reference.
Step-by-step explanation:
Mapping diagram is a set of two parallel columns.
The first column includes the 'domain'.
And the second column includes the 'range'.
A relation is a function,
if every domain () has only one range (
)
The given coordinates in the set form are in the form ()
15. We observe that each '' is attached to only one '
'
Therefore this relation is a function.
16. We observe that here also each '' is attached to only one '
'
Therefore this relation is also a function.
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Answer:
Choice A.
Step-by-step explanation:
Turn the mixed numbers into improper fractions:
Flip the second term and multiply:
Simplify:
Answer:
No, middle term should be 40x.
Step-by-step explanation:
Hence, for the given trinomial to be a perfect square its middle term should be 40x and not 36x.
Answer:
Step-by-step explanation:
Area of triangle = 0.5 × Base × Height
→ Substitute in the values
200 = 0.5 × 5x × 5x
→ Simplify
200 = 12.5x²
→ Divide both sides by 12.5
16 = x²
→ Square root both sides
4 = x ∴ x = 4