Identify an equation in point-slope form for the line perpendicular to
y=-**-6 that passes through (-1,5).
O A. y -5= 3(x+1)
O B. y+1= 3(x - 5)
O C. y+5= (x-1)
O D. y-5--}(x + 1)

phosphate, calcium ion, chloride ion, neon atom

step-by-step explanation:

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places