Every triangle adds up to 180 degrees
Answer:
Step-by-step explanation:
<em>1).</em> (40, 60)
m = 2
y - 60 = 2( x - 40 )
<em>2).</em> (5, - 1)
m = - 3
y - ( - 1) = - 3( x - 5 )
<em>3).</em> m = 2
y - 1 = 2( x + 2 )
y = 2x + 5
Answer:
-16/5
Step-by-step explanation:
Perform the indicated multiplication. We get:
7x + 7 = 1 - 10 + 2x.
Next, combine like terms: combine the x terms and combine the constants:
5x = -16
Dividing both sides by 5, we get the solution x = -16/5
Answer:
1/2
Step-by-step explanation:
If there is exactly the same number from each side in which the other side is doubled, it is exactly 0.5 also 1/2.
Answer: the first term is 5
Step-by-step explanation:
In a geometric sequence, the consecutive terms differ by a common ratio. The formula for determining the sum of n terms, Sn of a geometric sequence is expressed as
Sn = (ar^n - 1)/(r - 1)
Where
n represents the number of term in the sequence.
a represents the first term in the sequence.
r represents the common ratio.
From the information given,
S12 = 20475
r = 2
n = 12
Therefore,
20475 = (a × 2^(12) - 1)/2 - 1
20475 = (a × 4095)
20475 = 4095a
a = 20475/4095
a = 5
