Answer:
2x + 49 = -8 (-x-5)
x=-57/2
x=-28.5
because if you substitute x for 28.5, it makes it equal
Step-by-step explanation:
Hope I Helped!!!
#9 is correct.
#10 is actually choice 2.
This is because the difference of logs with the same base (log(x)-log(y)) is equal to the log of the two numbers divided by each other, so log(x)-log(y) would equal log(x/y). In your case, log(15)-log(10) => log(15/10) => log(3/2), final answer.
Answer:
3.45 sq ft
Step-by-step explanation:
b is just a variable, which is just a term for a value that could change. It could be anything
Answer: 30 feet per second
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x = diameter, y = speed of water
y varies inversely with respect to x, so, y = k/x for some constant k
If x = 0.6 and y = 5 pair up, then y = k/x turns into 5 = k/0.6 which solves to k = 3 when you multiply both sides by 0.6
So the equation y = k/x turns into y = 3/x
Now plug in the diameter x = 0.1 to find the speed to be...
y = 3/x
y = 3/0.1
y = 30 feet per second
