Answer:
8
Step-by-step explanation:
The attached graph shows the inverse function (red) and the value of the inverse function for an input of -9.

_____
The inverse function tells you the input required for the given output from the function. So, you can look for an output of -9 on the graph of <em>f</em> and see what input gives that. You find ...
f(8) = -9
so ...
f⁻¹(-9) = 8
Answer:
.75 mg
Step-by-step explanation:
.25 * 3 = .75 mg
Its simple. You collect like terms and put them on one side of the equation
To round to the nearest cent, nearest penny, or nearest hundredth, you will need to locate the hundredths place. Then look at the digit to the right. If it is 5 or above, the number in the hundredths place will be increased by 1 and all the rest of the numbers after it are dropped. If the number is 4 or below, you leave the digit in the hundredths place alone and drop all the rest of the numbers after.
<span>Just remember, if the problem asks you to round to the nearest hundredth, make the end result look like money, meaning only two digits after the decimal point!</span>
Answer:
she will need to get a 100 on the fourth test
Step-by-step explanation:
(252+x)/4 = 88
252+x = 352
x = 100