Answer:
The answer is the first one
Step-by-step explanation:
Answer:
first, second and fourth
Step-by-step explanation:
If you use distribution,
6a(5+d) is the same as
6a(5) + 6a(d)
Multiplied = 30a + 6ad
So it's the 1st 2nd and fourth choice.
1st is stated above when multiplied out and combined.
2nd is after distribution.
4th choice is basically combination of 1 and 2 where one is combined (first term) and the second one just set up to be multiplied.
It cannot be third because you are multiplying the factors and not adding so you cannot have 11a.
It cannot be last choice because you have different types of terms that cannot be combined (one with a alone and one with ad)
Firstly , we must find the gradient.
gradient, m = y2 - y1 / x2 - x1
m = 7 - (-1) / 4 - 3
m = 8
a straight line is y=mx+c
thus, we have to find the c which is y-int by subs one of the coordinate to the equation.
y=mx + c
7=8(4) + c
c = -25
thus the equation is y = 8x - 25
Answer:
Sum
Step-by-step explanation:
An arithmetic series is the sum of the terms of an arithmetic sequence. A geometric series is the sum of the terms of a geometric sequence. ... The partial sum is the sum of a limited (that is to say, a finite) number of terms, like the first ten terms, or the fifth through the hundredth terms.