So the question ask to determine how long that the wooden artifact found in an ancient tombs and contains 70% of the carbon-14 was made, and base on the fact and the given data about the said artifact, the possible answer would be that the the artifact is 2948 years old. I hope you are satisfied with my answer
Answer:
5 miles
Step-by-step explanation:
There are 60 minutes in 1 hour, so to find how many miles he can walk, we simply multiply:

(-7x² + 3) + (4x² + 2x - 1)
-7x² + 3 + 4x² + 2x - 1
(-7x² + 4x²) + (3 - 1) + 2x collect like terms
-3x² + 2x + 2
hope this helps, God bless!
Answer:
-4/9
Step-by-step explanation:
Perpendicular lines have the opposite reciprocals of the parallel line slopes.
Answer:
Step-by-step explanation:
Area of semi-circle is
≈
× 4² ÷ 2 ≈ 25 cm²
Area of square is 8² = 64 cm²
Total area is 25 + 64 = 89 cm²