Answer:
4th Option, 45.1
Step-by-step explanation:
Cos(Ф) =
Ф = Cos⁻¹ ()
Ф = 45.1
Hope this helps!
I plugged it into my calculator and I got 1,870.
Answer:
Its -22
Step-by-step explanation:
you do 27 - 5 = 22 then add negative sign in front of 22 and then check by doing 5 - -22 and you get 27
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Using formula of difference of two squares a^2 -b^2 =(a-b)(a+b) we get
49p^2 -64y^2 = (7p -8y)(7p +8y)
and
1 - 25x^2 = (1 -5x)(1 +5x)
hope helped