The ph of a solution is a measure of the quantity of hydrogen atoms (h) in the solution. it is given by the formula f(x) = −log x.

in the formula, x = [h+], the molar concentration of hydrogen atoms, or the number of moles of hydrogen atoms per liter of solution

oven cleaner: [h+] = 10−13 ph =

water: [h+] = 0.7 ph =

blood: [h+] = 0.4 ph =

vinegar: [h+] = 0.0063 ph =

step-by-step explanation:

a and d

$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6

ljn

step-by-step explanation:

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)