Answer:
Step-by-step explanation:
The given triangle is isosceles. Therefore the base angles are equal.
This implies that,
.
To find 
we add the interior add angles and equate to 
.
This implies,
We substitute to obtain,
We evaluate to obtain,
We divide through by 3 to get.
Answer: 55.56
Step-by-step explanation:
Let the unknown number be k
(45 x k) / 100 = 25
45k/100 = 25
multiply both sides by 100
45k = 25 x 100
45k = 2500
divide both sides by 45
k = 2500/45
k = 55.56
Answer:
5. C
6. A
Step-by-step explanation:
To find the answer, plug in the x- and y-values into each equation. When the equation comes to be true that is your answer.
So for question 5, you plug -5 into the x and 13 into the y for each equation. The first equation will give you an answer of 13 = -7, which isn't true.
The second will give you 13 = 7, so you keep going.
The third gives you 13 = 13, which is true, so that one must be the answer.
Do this for every question and it will give you the answer.
A₅=6*5-4
a₅=30-4
a₅=26
D. 26
Good Studies!!
