Y - y1 = m ( x - x1)
y - (-9) = -17/5 ( x - (-5))
y + 9 = -17/5x - 17
y = -17/5x - 8
Answer:
Explanations:
a) The scientific notation is generally expressed as;
A is any real numbers between 1 and 10
n is an integer
Given that the total surface area of North America is 9,540,000 square miles. This is expressed in scientific form as;
From the scientific notation, A = 9.54 and n = 6
b) Given the scientific notation as shown:
Writing in standard form means writing in the normal way we write numbers/decimals. Hence;
He walked the same distance to school and back home.
I hope this helped! :-)
Answer:
10 liters.
Step-by-step explanation:
Let the volume of 2% acid be x liters.
Then the volume of the 8% solution will be (x + 30) liters.
Work in amounts of pure acid: amount of acid in the 10% solution = 30 * 0.1
= 3. So we have the equation:
0.02x + 3 = 0.08(x + 30)
0.08x - 0.02x = 3 - 0.08*30
0.06x = 0.6
x = 10
So the answer is 10 liter of the 2% solution.