Answer:
-4.125
Step-by-step explanation:
- 5 + -3 = -8
hope this helps
when a negative number adds a negative number, it will be negative
when a negative number adds a positive number, whichever number (either positive or negative) take the sign of the bigger one
For example:
-4 + 3 = -1
-5 + 10 = 5
hope this helps
Answer:
x = 12
Step-by-step explanation:
81 + 57 + 2x + 18 = 180
156 + 2x = 180
2x = 24
x = 12
I am not really sure about this answer, but it is 4308.08in
Hope this helps!
Answer:
1+cos^2(2A)=(1−cos2(2A))+2cos^2(2A)
=sin^2(2A)+2(cos^2A−sin^2A)^2
=(2sinAcosA)^2+2(cos^4A−2cos^2Asin^2A+sin^4A)
=2(cos^4A+sin^4A)
Step-by-step explanation:
