Eva’s daughter is 15 years younger than her son. Eva’s son is 22 years old. How old is her daughter?
2 answers:
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Answer:
Step-by-step explanation:
The slope-intercept form is found by solving that equation for y.
If then
and
and
so
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Answer:
A and C
Step-by-step explanation:
Given
2cos²x - 2 = 0 ( add 2 to both sides )
2cos²x = 2 ( divide both sides by 2 )
cos²x = 1 ( take the square root of both sides )
cos x = ± = ± 1
cos x = 1 ⇒ x = (1) = 0°
cos x = - 1 ⇒ x = (- 1) = 180°