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krlx
10.07.2019 •
Mathematics
4) the function f: ℝ → ℝ defined by f(x) = 7x is onto because for any real number r, we have that r/7 is a real number and f(r/7) = r. consider the same function defined on the integers g: ℤ → ℤ by g(n) = 7n. explain why g is not onto ℤ and give one integer that g cannot output.
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Ответ:
D
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r the radius
(x - 5)² + (y - 4)² = 25 ← is in standard form
with centre = (5, 4) → D