Answer:
the answer you seek is (B)
Step-by-step explanation:
To find circumference, you multiply the diameter of the circle by pi. Pi is 3.14 and the diameter is 25 feet. 25×3.14 is 78.5. The circumference of this tree’s trunk is 78.5 feet.
Answer:
39cm²
Step-by-step explanation:
6*5=30
6*3=18
18/2=9
30+9=39cm²
I'm assuming the grid is 1*1cm²
<span>
According to Avogadro's law, 1 mole ,i.e., 6.2 * 10^23 particles of
every substance have mass equal to its molecular mass in grams. Since
the molecular mass of CuSO4 is 80 grams. It means 6.2 * 10^23 particles
of CuSO4 have a mass of 80 grams. Now u can calculate the mass of 3.36 *
10^23 particles by unitary method 3.36 * 10^23 *80/6.23 * 10^23 grams </span>
