Let me see if I can decipher that :P
3/(3x)+1/x+4=10/(7x) first we need to make all terms have a common denominator of 21x...
(21+21+84x)/(21x)=30/(21x) multiplying both sides by 21x leaves you with
21+21+84x=30 combine like terms on left side
42+84x=30 subtract 42 from both sides
84x=-12 divide both sides by 84
x=-1/7
Answer:
10 amps.
Step-by-step explanation:
According to Ohm's Law, V=IR, and, dividing both sides by R, we have
, where V is the amount of volts, R is the amount of resistance, and I is the current in amps.
Plugging the values into the formula, we have
.
Therefore, there is 10 amps of current in the circuit.
An arithmetic sequence (a_n) is as follows:

where

is the first term and d is the constant difference,
thus, we see that the n'th term of an arithmetic sequence is

in our particular case d=5, the third term is 8, so we have:

and the general term is

,
Answer: first term is -2, n'th term is -2+5(n-1)
Answer:
≈ 
Step-by-step explanation:
Start with the distance formula:

Pair your values to your variables.

Let's substitute those values into the formula.

Complete the operations in your parentheses.

Square the bases of your powers.

Add.

Find the square root of
:
≈ 
I only provided 4 digits after the decimal point; feel free to round it accordingly.
A, b, e, f, all these contain an n to the 1st power