What you can say is:
2 choices for the first one (metals)
5 choices for the second choice stemming off of all the possible first choices (gems)
2 choices stemming off of all those combinations (shape)
So basically it would be:
2 * 5 * 2
Which is equal to 20.

Multiplication by 10ⁿ → move decimal n places to the right.
Multiplication by 10⁻ⁿ → move decimal n places to the left.
For n ∈ N
Answer:
D
Step-by-step explanation:
given
V =
bh
multiply both sides by 3 to eliminate the fraction
3V = bh ( divide both sides by h )
b =
→ D
Step-by-step explanation:
Check if f(−x)=f(x) f ( - x ) = f ( x ) . Since x2−2x x 2 - 2 x ≠ ≠ x2+2x x 2 + 2 x , the function is not even. A function is odd if f(−x)=−f(x) f ( - x ) = - f ( x ) .
Here is your answer they forgot to add the 3 in front this is your answer: -3.7+-0.25=-3.95 so as I'm look they added wrong its most like the 25 and the 7 were added wrong.