Answer:
48
Step-by-step explanation:
Multiply 12 and 4: 48.
Then there are two negatives that cancel out.
Hope this helps :D
Answer:
13
Step-by-step explanation:
If 169 m² is the area of a square, then the length of the side is
√(169 m²) = 13 m
Answer:
No, he needs 16 inches^2 more cardboard.
Step-by-step explanation:
Take the formula and substitute values into it. 6 * 6^2
Do the exponent first to get 6 * 36, and then complete that to get 216. Since he has 200 inches of cardboard and he would need 216, that means he would need 16 more square inches to make his cube.
The diagonal AC, along with the base AB and length BC, forms a triangle. The triangle's dimensions are:
AC = 18
∠CAB = 20°
AB = ?
∠ABC = 130°
BC = ?
∠BCA = 180 - 20 - 130 = 30°
Thus, we may apply the sine rule:
sin(BCA) / AB = sin(ABC) / AC
AB = sin(30) * 18 / sin(130)
AB = 11.7 inches