30 degrees and 40 degrees and side measures of 5 cm, 7cm, and 8 cm. Explain, using sides and angles, which type of triangle Kevi
n drew.
1 answer:
Answer:
Step-by-step explanation:
Alright, lets get started.
Please refer the diagram I have attached.
Two angles are given as 30 and 40 degrees.
The third angle we could find by subtracting both angles from 180.
So, third angle would be =
As we can see, there is no side which is equal to each other.
Similarly, there is no angle which is similar to each other.
Hence the triangle is Scalene triangle. : Answer
Hope it will help :)
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Answer:
Option D is correct.
13x = 39
Step-by-step explanation:
The system of equation is given:
....[1]
.....[2]
Multiply equation [1] by 5 to both sides we have;
.....[3]
Using elimination method:
Add [2] and [3] equations to eliminate y and solve for x, we have;
Divide both sides by 13 we get;
x = 3
Substitute x in [1] we have;
2(3)-y = -4
6-y = -4
Subtract 6 from both sides we have;
-y = -10
Divide both sides by -1 we have;
y = 10
⇒Solution: (3, 10)
Therefore, an equation can replace 3x+5y = 59 in the original system and still produce the same solution is,
13x = 39