Answer:
x = 2.5
or
x =
Step-by-step explanation:
18x + 6 + 4 = 55
18x + 10 = 55
18x = 55 - 10
18x = 45
x = 2.5
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Answer:
Infinitely Many Solutions
Step-by-step explanation:
Answer:
The explanation is given below.
Step-by-step explanation:
Given for a triangle to be obtuse only one of the angles must be shown to be obtuse but for a triangle to be acute all three angles must be shown to be acute.
According to Pythagoras theorem for a right angled triangle which has one angle of 90° rest of two are acute.
Hence, by Pythagorean inequality
which gives the triangle is acute.
Hence, one acute angle with the Pythagorean inequalities theorem shows that the triangle is acute.