Okay, just remember with signs, a positive and a negative equals a negative.
28.43-13.17+2.07= 17.33
I hope this helped!
Brainliest answer is always appreciated!
Answer:
The answer is option 3.
Step-by-step explanation:
You have to substitute H+=2×10^(-9) into the equation of pH :
pH = -log[H+]
H+ = 2×10^(-9)
pH = -log[2×10^-9]
= 8.70 (3s.f)
Answer:
104:2=52
3*52=156
1) 156/3
2)364/7
7*52=364
Answer:
Simplify the expression.
276480
Step-by-step explanation:
Answer:
√13 ≈ 3.6056
Step-by-step explanation:
The Law of Cosines can be used to figure this. If the third side is "c", then it tells you ...
c² = a² + b² - 2ab·cos(C)
c² = 3² + 4² -2(3)(4)(cos(60°)) = 9 + 16 - 24(1/2) = 13
c = √13 ≈ 3.6056
The length of the third side is √13, about 3.6056.
