0) Which equation demonstrates a strong Arrhenius acid?
A H2CO3(aq) + H20 ( H30(aq) +HCO3(aq)
BLIOH(aq) - L*(aq) +OH(aq)
CHBr(aq)+H20 (1) - H30* (aq)+ Br(aq)
DC3HsN(aq) + H202 C6H&N*(aq)+OH"(aq)

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1

it's undefined because anything multiplied by 0 is 0. that said, 7 days is 168 hours

b.

step-by-step explanation:

i just know