1 feet = 0.3048 meters
So we do a unit conversion to cancel out the feet unit.
Look at my picture to see the work
Please let me know if this helped!
Answer:
![a_5 = 32](https://tex.z-dn.net/?f=a_5%20%3D%2032)
Step-by-step explanation:
The nth term for the geometric sequence is given by:
![a_n = a_1 \cdot r^{n-1}](https://tex.z-dn.net/?f=a_n%20%3D%20a_1%20%5Ccdot%20r%5E%7Bn-1%7D)
where,
is the first term
r is the common ratio
n is the number of terms.
As per the statement:
For the geometric sequence of
and r=2
We have to find ![a_5](https://tex.z-dn.net/?f=a_5)
for n = 5;
![a_5=a_1 \cdot r^{n-1}](https://tex.z-dn.net/?f=a_5%3Da_1%20%5Ccdot%20r%5E%7Bn-1%7D)
Substitute the given values we have;
![a_5 = 2 \cdot 2^4 = 2 \cdot 16](https://tex.z-dn.net/?f=a_5%20%3D%202%20%5Ccdot%202%5E4%20%3D%202%20%5Ccdot%2016)
⇒![a_5 = 32](https://tex.z-dn.net/?f=a_5%20%3D%2032)
Therefore, the value of
is, 32
I need more information to answer this
Lila did it correctly. The answer is 324
Following PEMDAS, we first focus on the parenthesis. So we simplify 9-3 to get 6
So we go from
18*4^2+(9-3)^2
to
18*4^2+6^2
The next step is applying exponents. In this case, squaring the terms, so we go from
18*4^2+6^2
to
18*16+36
Next is multiplying
18*16+36
turns into
288+36
Finally, add up 288 and 36 to get 288+36 = 324
That confirms that Lila is correct
----------------------
The error that Rob made is that he computed 18*4^2+9^2-3^2 but it is NOT correct. Saying (x-y)^2 = x^2-y^2 isn't a true equation for all x and y. Again you have to simplify what is in the parenthesis first, and then you can square it. Or you must use the FOIL rule to expand out (9-3)^2
Answer
It's D
Step-by-step explanation: