Answer:
it is correct because it adds up to 180
Answer:
<h2>The 7th term is </h2><h2>a7 = 36</h2>
Step-by-step explanation:
a1=12
an=an−1+4
the given sequence shows that :
the first term is a1=12
and the common difference ”r” is = 4
then the general term of the sequence is :
an=a1+(n-1)r
then
an=12+(n-1)4
then
an=4n+8
therefore
a7=4(7)+8
= 28+8
=36
By pythagoras theorem,
cb^2 = ac^2 + ab^2
5^2 = ac^2 + 3^2
ac^2 = 5^2 - 3^2 = 16
ac = squareroot 16 = 4cm
Answer:
Yes.
Step-by-step explanation:
A linear equation is of the form y = mx + b.
2x = 4y
y = 2x/4
y = 0.5x
so it is linear.