Answer:
A) True
Step-by-step explanation:
In an experiment that has the purpose of testing the efficacy of a procedure or drug, comparison is made against the efficacy of a placebo, a procedure or drug that is <em>intended to have no effect whatever</em>.
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Famously, a placebo is often found to be nearly as effective (or even more effective) than the procedure or drug on trial. This effect is known as "the placebo effect."
Answer:
x = 1.24
Step-by-step explanation:
In order to get that x down from its current position of exponential, you need to take either the log or the natural log of both sides. The power rule tells us that we can then pull the exponent down in front. So let's take the natural log of both sides:
![ln(83)=ln(35)^x](https://tex.z-dn.net/?f=ln%2883%29%3Dln%2835%29%5Ex)
We can bring the x down in front to give us:
ln(83) = x ln(35)
The right side of this is "stuck" together by multiplication, so we can undo that multilication by division of the ln(35). That leaves us with just x on the right:
![\frac{ln(83)}{ln(35)}=x](https://tex.z-dn.net/?f=%5Cfrac%7Bln%2883%29%7D%7Bln%2835%29%7D%3Dx)
Do this on your calculator and find that x = 1.24
Step-by-step explanation:
4(5x-9)=-2(x+7)
4*5x-4*9=-2*x-2*7
20x-36=-2x-14
20x+2x=-14+36
22x=22
x=22/22
x=1
Answer:
because we cant help you here can you drop a screenshot in so then we can help because all we know is find the value of x and y and if we had a screenshot then we would know what we are trying to calculate here
Step-by-step explanation: