Answer:
A. (4x+1)(2x squared -2) you would simply distribute the numbers.
4x(2x squared) + 4x(-2) + 1(2x squared) + 1(-2)
Step-by-step explanation:
Answer:
a) P(t) = 7t
b) P(8) = 56. P(8) is Michael's gross pay for 8 hours' work.
c) Michael worked 21 hours to get a paycheck for $147.
Step-by-step explanation:
a) Pay attention to problem details. Functions come with all kinds of names and variables, not just f(x). You are told to use a function name of P and a variable name of t.
You have written the relationship correctly: pay in dollars is 7 times the number of hours.
... P(t) = 7t
b) P(8) = 7·8 = 56
P(8) is described by the problem statement as ...
... "his total amount on his paycheck, in dollars, for the week" in which he worked 8 hours for the week.
c) You want to find t such that P(t) = 147. Put that value into the equation for P(t) and solve for t.
... 147 = 7·t
... 147/7 = t = 21 . . . . . divide by the coefficient of t
Michael worked 21 hours to receive a paycheck of $147.
Answer:
Step-by-step explanation:
9 * -9 * -1 =
-81 * -1 =
81 <===
In multiplying (or dividing), if the signs are the same, the result is positive
if the signs are different, the result is negative
these rules do not apply to addition or subtraction
Given :
A submarine started at the surface of the water and was moving at -15 meters per minute.
The submarine traveled at this rate for 48 minutes before coming to rest on the ocean floor.
To Find :
The change in the submarine position.
Solution :
We need to find the position of submarine position from the surface of water.
Distance travelled = Speed × Time
Distance travelled = -15 m/min × 48 min
Distance travelled = 720 m
Therefore, the position of submarine is 720 m below the surface of ocean.
To solve this problem you must apply the proccedure shown below:
1. You have the following logarithm:
<span>log(2)n=4
2. Therefore, you con rewrite it as below:
loga(b)=logb/loa
</span>
3. Therefore, you have:
log(2)n=4⇒log(n)/log(2)=4
4. Then, you obtain:
log(n)=4log(2)
5. Therefore, as you can see, the answer for the exercise shown above is the last option, which is:
log(n)=4log(2)