3+99-4+(56-76)-88+999=?
2 answers:
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Answer:
(c)
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos42° = =
Multiply both sides by 12
12 × cos42° = x, hence
x ≈ 8.9 → (c)
Answer:
square root (50) = 7.071
Step-by-step explanation:
Using Pthagoras' theorem, the diagonal length is .
Therefore, the diagonal length is the square root of 5^2+5^2,
=
=
= 7.071
Answer:
d = Nc + x
Step-by-step explanation:
Given
N =
Multiply both sides by c to clear the fraction
Nc = d - x ( add x to both sides )
Nc + x = d