The circulatory system is responsible for bringing food and oxygen to every cell in your body. The respiratory system is responsible for carrying oxygen and carbon dioxide in and out of your body.
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Part (a)
0.0095 + 8.5 x 10⁻³
= 9.5 x 10⁻³ + 8.5 x 10⁻³
= (9.5 + 8.5) x 10⁻³
= 18 x10⁻³
= 1.8 x 10⁻²
Answer: 1.8 x 10⁻²
Part (b)
653 + 5.75 x 10⁻⁸
= 6.53 x 10² + (5.75 x 10⁻¹⁰) x 10²
= (6.53 + 5.75 x 10⁻¹⁰) x 10²
= 6.53 x 10²
Answer: 6.53x 10²
Part (c)
850,000 - 9.0 x 10⁵
= 8.5 x 10⁵ - 9.0 x 10⁵
= - 0.5 x 10⁵
= - 5.0 x 10⁴
Answer: -5.0 x 10⁴
Part (d)
(3.6 x 10⁻⁴) * (3.6 x 10⁶)
= (3.6*3.6)*(10⁻⁴)*(10⁶)
= 12.96 x 10⁶⁻⁴
= 12.96 x 10²
= 1.296 x 10³
Answer: 1.296 x 10³