flooring a value, simply means, dropping it to the closest integer, so for the floor function or ⌊x⌋, that means
⌊ 2.5 ⌋ = 2
⌊ 2.00000001 ⌋ = 2
⌊ 2.999999999999⌋ = 2
⌊ -2.0000000001⌋ = -3
⌊ -2.999999999999⌋ = -3
let's recall that on the negative side of the number line, the farther from 0, the smaller, so -1,000,000 is a tiny number compared to the much larger -1.
⌊ -5.2 ⌋ = -6.
The hydronium ion is H₃O⁺ and its concentration is equivalent to the H⁺ ion concentration. The H⁺ ion concentration is given by:
pH = -log[H⁺]
[H⁺] = 10^(-8.2)
[H⁺] = 6.31 x 10⁻⁹ mole/dm³
The hydronium ion concentration is 6.31 x 10⁻⁹ mole/dm³
Answer:
<h2><u>
<em>7</em></u></h2>
Step-by-step explanation:
<em>Divide 63 by 9 which is 7</em>
<h2>
<em> Work-63÷9=7 </em></h2>
Answer:
Step-by-step explanation:
e
Answer:
-485
Step-by-step explanation:
Formula
<em><u>Givens</u></em>
an = a28
n = 28
a1 = - 242
<em><u>Solution</u></em>
d = a3 - a2
d = -260 - - 251
d = -260 + 251
d = - 9
an = a1 + (n-1)d
an = -242 + (n - 1)(-9)
a28 = - 242 + 27*(-9)
a28 = - 242 - 243
a28 = - 485
