Answer:
Step-by-step explanation:
increase density of seawater
The answer is 40 percent .
There's a total of 25 students .
10 of them are boys
10/25 = .4
.4=40%
Answer:
a. 7 years
Explanation:
If it's a sample of something, it should remain as true to the original product as possible. There should be no difference in quality between the sample cell phone and the regular cell phone. If there was, that would defeat the purpose of it being a sample.
Answer:
12.3693
Step-by-step explanation:
use distance formula
Solve for x over the real numbers:
2 x^2 - 4 x - 3 = 0
Divide both sides by 2:
x^2 - 2 x - 3/2 = 0
Add 3/2 to both sides:
x^2 - 2 x = 3/2
Add 1 to both sides:
x^2 - 2 x + 1 = 5/2
Write the left hand side as a square:
(x - 1)^2 = 5/2
Take the square root of both sides:
x - 1 = sqrt(5/2) or x - 1 = -sqrt(5/2)
Add 1 to both sides:
x = 1 + sqrt(5/2) or x - 1 = -sqrt(5/2)
Add 1 to both sides:
Answer: x = 1 + sqrt(5/2) or x = 1 - sqrt(5/2)