Answer:
2047
Step-by-step explanation:
We are given that
Growing rate=0.7%



Using the formula



Initially when t=0,P=323 million
Substitute the values


Now, substitute P=400 million





Year=2016+31=2047
Hence,In 2047 the U.S population will reach 400 million people.
Answer:
D.
Step-by-step explanation:
Your graph of f(x)=
is the parent function. What you need to know for this graph what the stretch or compression is and what the flip is. When you flip somehting over the x-axis, which is g(x), your
is negative. Also, since your graph gets skinnier, the number before the x would be a whole number, with no fractions. The only answer that fulfills this is answer choice D.
Answer:
Perimeter of the final star = 40 cm²
Step-by-step Explanation:
The perimeter of the six-pointed star is the sum of the sides of the 6 equilateral triangles that form a boundary around the star.
1 triangular tiles gas a perimeter of 10cm.
Only 2 out of the 3 equal sides of each of the 6 equilateral triangles form the boundary of the final star.
Therefore, perimeter of the final star = ⅔ of the total perimeter of 6 triangular tiles
= ⅔ of (10*6)
= ⅔*60
= 2*20
Perimeter of the final star = 40 cm²
Answer: √20⋅25=22.36
Step-by-step explanation:
Geometric mean of 20 and 25 is √20⋅25=22.36(2dp)