Answer:
$22,968
Step-by-step explanation:
To solve this question, we need to find the volume of the cylinder. Let’s call this V
Mathematically V = πr2h
where r = 3m , h = 7m and π = 22/7
Putting this in the formula:
V = 22/7 * 3 * 3 * 7 = 198 cubic meter
We are told concrete costs $116 per cubic meter. Hence, for 198 cubic meter we have 198 * 116 = $22,968
Each box should be 2. If you subtract the number next to x on both sides of each inequality, you end up with x > 2.
PS. Thanks for marking me brainliest on the other problem :)
Answer:
B
Step-by-step explanation:
Answer:
t = 6162 years
Step-by-step explanation:
This equation takes the form of
We are given everything but the amount of C-14 at time t = 0. But we can figure it out from the info we ARE given. We are told that when the spear head is found it contains 54% of its original amount of C-14. Notice we are dealing in percents. If 54% remains when it is found, it started out with 100% of its amount. That's our N value. Filling in:
Our goal is to get that t down from the exponential position that it is currently in. To do that we will need to eventually take the natural log of both sides, because ln's and e's "undo" each other, much like squaring "undoes" a square, or dividing "undoes" multiplication. So we take the natural log of both sides. On the right side, notice that when we take the natural log, the e disappears; it's "undone", gone. Before that, though, we will simplify by dividing both sides by 54. 100/54 = 1.851851852. So, altogether...
Simplifying by plugging the log of that number into our calculator, we get
.6161861395 = .0001t and
t = 6161.8613
Rounding to the nearest year, t = 6162 years
Answer:
Some of the Exponents = -2 that is true, not 2.
Step-by-step explanation:
Let's check one at a time.
(a)The 6 without an exponent is equivalent to the 6 having a 0 exponent.
and = 6 (no exponent. 6 1 therefore this statement is False.
(b)The sum of the exponents is -2.
let's check , if the base is same we can add the exponents that is the exponent rule.(well established).
if we add exponents in the given expression we get.
, therefore we can see that the sum of the exponents = -2 this is true.
(c) An equivalent expression is 65.6-7, lets evaluate our above expression, it is equal to which we can see that ,therefore this statement is false as well.