8-15 is -7 and 8+(-15) is also -7 because this equation can also be written as 8-15 but I'm not really sure how to explain how they are different. Sorry
Answer:
27
Step-by-step explanation:
2x+3x+45=180
5x=135
x=27
To prove the SAS (side-angle-side) postulate, a. <XWY=<ZWY needs to be marked congruent. Since the segment WY=WY due to the reflexive property, we need an angle between them to prove SAS, which has to be XWY and ZWY.
Answer: 360 - 44 - 80 = 236
236 ÷ 2 = 118
both angle equal to 118
Step-by-step explanation:
Answer:
-18 b^-4= -18/b^4
Step-by-step explanation:
-3b^4(6b^-8)
Combine coefficients
-3*6 = -18
Combine exponents since the bases are the same, x^y * x^z = x^(x+z)
b^4 *b^ -8
b^(4+-8)
b^ -4
Put back together
-18 b^-4
We also know that x^-y = 1/x^y
-18/b^4