Genes<span> are made of a chemical called </span>DNA<span>, which is short for 'deoxyribonucleic acid'. The </span>DNA<span> molecule is a double helix: that is, two long, thin strands twisted around each other like a spiral staircase. The sides are sugar and phosphate molecules.</span>
Answer:
it affects the hardness of the shells because calcium has a high reactivity which causes the shell to be hard
Explanation:
Given:
base edge - 8 ft
altitude or height - 75 ft
Surface area = [(3√3)/2] a² + 3a[√h² + (3a²/4)]
S.A = 2.6*8² + 3(8) * √75² + [(3*8²)/4]
S.A = 166.4 + 24 * √5625 + 48
S.A = 166.4 + 24 * √5674
S.A = 166.4 + 24 * 75.33
S.A = 166.4 + 1807.92
S.A = 1974.32 ft²
convert square feet to square yard.
1 sq ft = 0.1111 sq yd
1974.32 ft² * 0.1111 sq.yd/sq.ft = 219.35 sq yd.
22 per sq. yard
219.35 sq. yard * $22/sq.yd = $4,825.70
Total cost is $4,825.70
