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Harman [31]
3 years ago
13

If a solution has a ( OH- )= 8.6 × 10-5 what is the pOH

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
6 0
POH is the -log [ OH- ]. Using this equation, simply find the -log of the OH- concentration to find the pOH:

pOH = - log ( 0.000086 ) = 4.07


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last year Patrick paid £2534 for his annual train ticket this year he has to pay £2612 for his annual train ticket. work out the
Aleonysh [2.5K]

Answer:

Percentage increase in the cost of his train ticket = 3% (Approx.)

Step-by-step explanation:

Given:

Cost of annual ticket paid by Patrick last year = £2,534

Cost of annual ticket paid by Patrick current year = £2,612

Find:

Percentage increase in the cost of his train ticket

Computation:

Percentage increase = [(Current - Base) / Base]100

Percentage increase in the cost of his train ticket = [(2,612 - 2,534) / 2,534]100

Percentage increase in the cost of his train ticket = [(78) / 2,534]100

Percentage increase in the cost of his train ticket = [0.03078]100

Percentage increase in the cost of his train ticket = 3.078

Percentage increase in the cost of his train ticket = 3% (Approx.)

3 0
2 years ago
To make a project, you need a rectangular piece of fabric
Sati [7]

Answer:

12 ft²

Step-by-step explanation:

area = length * width

area = 4 ft * 3 ft

area = 12 ft²

7 0
3 years ago
Read 2 more answers
What is .65% of 160? Show your work
vladimir2022 [97]
0.65/100 = x/160 Ok, until now?

You then find the cross product: (0.65)(160) = 100x

104 = 100x        104/100 = 1.04

So x = 1.04 and it is also 0.65% of 160


Hope this helps!
7 0
3 years ago
I need answers for all! thank you will mark brainlist!! please help me i’m begging you <3
Darina [25.2K]

Step-by-step explanation:

y = 2/5 x - 9/5

when x = -1,

the value of y = 2/5(-1) - 9/5

= -2/5 - 9/5 = -11/5

when x = 0

=> y = 2/5(0) -9/5

= 0-9/5 = -9/5

when x=1

=> y = 2/5(1) - 9/5

= 2/5 - 9/5 = 7/5

6 0
3 years ago
Bro i can’t fail this real talk i need help please i’ll give u a brainliest for your help please
marin [14]

Answer:

33.4933333333, rounded, 33.5x^{3}

4/3x3.14x2x2x2=33.4933333333

5 0
3 years ago
Read 2 more answers
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