To find the diameter, you use the formula: 2x. we use 2x because the radius is 2 times the diameter.
so, if the radius is 3,980, then we substitute that into the formula.
2(3,980)
this will give us 7960. the diameter is 7960 miles.
Answer:
B
i think
Step-by-step explanation:
Answer: 615
Step-by-step explanation: you take the 45 times 12 months plus the 75 for the one time fee.

By taking <span>logarithmic of base 10
∴ </span><span>

∴ x log 4 = log 64
∴

∴ The correct choice is
</span><span>x = log base 10 of 64, all over log base 10 of 4</span>
Complementary angles add up to 90 degrees.
The complement of 57 is (90 - 57) = 33 degrees.