To do roots of numbers with indices, divide the indice by the root. 4th root of
is
4th root of
is
4th root of
is
4th root of 81 is 3 4th root of 16 is 2
Answer:
312 copies
Step-by-step explanation:
100 + 100 = 200
40 + 60 = 100
8 + 4 = 12
200 + 100 + 12 = 312 copies
Answer:
y = 42
Step-by-step explanation:
y = x^2 – 7
Let x=7
y = 7^2 – 7
y = 49 -7
y = 42
First, we need to find her current age. If she was 12 years old 3 years ago, her current age is 12 + 3 which is 15. If the ratio of Sarah's age to Keisha's age is 4:5 (Sarah's age is the 4 and Keisha's age is the 5).
If we take 15 and divide that by 5 (her ratio), then you get 3. Now multiply 3 by 4 to find Sarah's age. We get 12. Nine years from now, her age is 12 + 9 which is 21.
There is the answer. Sarah's age in 9 years is 21 years old. I hope this helps.
Answer:
697.2
Step-by-step explanation:
