Answer:
2×10¹² cells → 90 g
mass of 1 red blood cell : 90÷(2×10¹²) = 45×10^-12 g = 4.5×10^-11 g
Answer: 7.012 x 10−8 ==> Option 3
Step-by-step explanation:
(3.012 x 10−8) + (4 x 10−8)=
(3.012+4) x 10−8=
(3.012+4.000) x 10−8=7.012 x 10−8 ==> Option 3
Answer:
x=4-3/x
Step-by-step explanation:
x^2-4x+3=0
x^2-4x=-3
x^2=4x-3
x=4-3/x
Answer:

< 5 & < 6 are <u>supplementary angles.</u>
Step-by-step explanation:
Together they form a linear pair & sum up to 180°.
< 5 + < 6 = 180° (supplementary angles)
Answer:
23.42
Step-by-step explanation:
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