We can set up a proportion.
2/3 = x/1
Cross multiply.
2 * 1 = 2. 3 * x = 3x, so we have 3x = 2.
Now we can divide 3 by 2 to get our answer, which is 1.5. :)
Cos (Ф) = 0.9123
To calculate Ф, we have to find the arcos (0.9123) ≈ cos⁻¹ (0.9123)
cos⁻¹(0.9123) = Ф
cos⁻¹ (0.9123) = 24°.175
Ф = 24°.175
Answer:
13,12,25
Step-by-step explanation:
Square root of 169 is 13.
Square root of 144 is 12
Square root of 625 is 25.
Answer:
D
Step-by-step explanation:
factoring out a negative
