False
b could be the logarithm of a rational number to the base a. For example,
will be irrational, but π^b = 4, a rational number
This is an awful question. They mean to say the number of hours practicing <em>per week</em> (we'll call it h) varies inversely with the <em>time</em> (t) she runs her event. Unless they mean to imply more practicing makes Tyler slower, in which case she should just get a pizza.
Inverse variation means the product is a constant, we'll call it k.
ht = k
When h = 1 hour t=6 minutes
(1)(6) = k
k = 6 (hour*minutes, but as long as we're consistent we don't need to sweat the unit.)
Decreasing her time by one minute means t = 6 - 1 = 5. We solve for h.
ht = k
h = k/t = 6/5 = 1.2 hours
Answer: 1.2 hours, second choice
A graph shows the appropriate choice to be
A. 277.8 °F
_____
Of course, you get the same result by evaluating
76 + 301*e^(-0.40)
Answer:
31*
Step-by-step explanation:
right triangle means 90* so 90*-59* = 31*
