x^2 = 16/100
We must solve for x by taking the square root of both sides.
But imagine x^2 = 9. x = 3 is a solution because 3^2 = 9. But x = -3 is also a solution because (-3)^2 = 9. So we need to add the plus and minus sign to account for all of our solutions.
√x^2 = √(16/100)
We square root both sides to remove the exponent 2 on x. Then
x = ±√(16/100)
Then we have to use a Property of Radicals which is √(x/y) = √(x) / √(y).
Then the square root of 16 is 4 and the square root of 100 is 10. 4/10 is 2/5 simplified.
Answer:
y = x + h
Step-by-step explanation:
Given
x = y - h ( isolate y by adding h to both sides )
x + h = y
Answer: It will take you 30 minutes because 8 divided by 4 is 2 and 60 minutes (1 hour) divided by 2 is 30 minutes (or half an hour).
Answer and Step-by-step explanation:
(1) Scale factor is a constant value that multiplies another value. For a puppy's weight, scale factor is 1.23.
The percentage growth is
1.23 = 1 + 0.23
Percentage is 0.23 or 23%.
(2) Equation for increase is
When w = 4000g:
Using the log law:
t.log(1.23) = log(10.96)
0.08990t = log(10.96)
t = 11.56
The puppy will weigh 4000 grams in 11 and half weeks or between 11 and 12 weeks.
94.985 because I did it in a calculator.
