Answer:
C
Step-by-step explanation:
To solve, use inverse operations:
Now we solve for both +/- 7.
x+6=7
x=1
x+6=-7
x=-13
Answer:
No parallel lines will never intersect.
Step-by-step explanation:
They go in the same direction almost like an equals sign "="
Answer:
£62.65
Step-by-step explanation:
Multiply by seven
One hundred fifty three thousand
Answer:
The first term of the geometric series is 1
Step-by-step explanation:
In this question, we are tasked with calculating the first term of a geometric series, given the common ratio, and the sum of the first 8 terms.
Mathematically, the sum of terms in a geometric series can be calculated as;
S = a(r^n-1)/( r-1)
where a is the first term that we are looking for
r is the common ratio which is 3 according to the question
n is the number of terms which is 8
S is the sum of the number of terms which is 3280 according to the question
Plugging these values, we have
3280 = a(3^8 -1)/(3-1)
3280 = a( 6561-1)/2
3280 = a(6560)/2
3280 = 3280a
a = 3280/3280
a = 1
