5+2i. You only have to change the operation of the original expression, not the signs (positives and negatives) of each term.
Answer:
a) p(t) = 8.25t - 5
b) p(11) = 90.75 - 5 = $85.75
Step-by-step explanation:
During a clothing store's Bargain Days, the regular price for T-shirts is discounted to $8.25. This means the new price of a T-shirt is $8.25 if it is bought during the clothing store's bargain days. Also, there is additional coupon for $5.00 off, regardless of how many shirts are purchased. This means $5 off the total amount that you pay for the T-shirts.
a) the rule for the function, p(t) that expresses the final price of t T-shirts with the discount applied would be
p(t) = 8.25t - 5
Where p(t)= the final price of t T-shirts
t = number of T-shirts.
b) During the bargain days, amount paid for 11 T-shirts would be
p(11) = 8.25×11 - 5
p(11) = 90.75 - 5 = $85.75
Let f(x) represents function that tells us Derek's earning depending on square feet of lawn mowed which is x.
First we construct function:
f(x) = x/1000 * 1 + 30
x/1000 is a number that tells us the number of mowed units. for x = 1000 square feet he earns 1 dollar that is why we have to divide x by 1000.
if he earned 204 first week that means that x =:
204 = x/1000 + 30
x/1000 = 174
x = 174 000
if we check for each week that he worked we will see that square footage of the lawns he mowed match forth (last) option.
Answer is D.
The volume of this box is indeed 84 in^3. What were you looking for beyond that?
Base: (7 in)(3 in) = 21 in^2
Height: 4 in
volume = (21 in^2)(4 in) = 84 in^3 (answer)
Answer:
a) This is an experiment, since one of the variables is being controlled. The<u> light exposure is set to work 24h a day, this is done because the researcher has made a choice</u>. In an observational study, the researcher has no control over the variables, so no changes happen with the sample groups. Some notes are taken about their behavior, but there isn't any element that is being manipulated.
b) The control group is the one in which the fireflies keep their usual routine, there aren't any changes in their environment. This is the population exposed to normal daylight/darkness. The treatment group is the one in which the fireflies live under different conditions from what they are used to, being this the ones that are exposed to continuous light 24h/day.
c) The variable of interest in this study is the rate of survival after continuous light exposure compared to natural light exposure. The level of measurement used is ratio scale, then, since the question being made with this research is "how many individuals are going to survive?". Ratio scales allow reserachers to count concrete data.
