Answer:
<h2>9</h2>
Step-by-step explanation:
(-)(-) = (+)
(-)(+) = (-)
(+)(-) = (-)
(+)(+) = (+)
-(-21) = (-)(-21) = (+)21 = 21
-12 - (-21) = -12 + 21 <em>use commutative property: a + b = b + a</em>
= 21 + (-12) = 21 - 12 = 9
Sinx=0.9
arcsin0.9=x
cos(arcsin0.9)=0.436
Answer:
Domain: [-4,2]
Range: [2,4]
Step-by-step explanation:
Domain: [-4,2]
Range: [2,4]
Answer:
Step-by-step explanation:
The element copper has 29 protons. What is the atomic number of copper?
(-5+1)/2= -4/2= -2
(9+(-1))/2= 8/2= 4
