<u><em>≡ Solution:</em></u>
<em>⇔ To make it easier:</em>
⇒ ²¹/₂₅ × ⁴/₄
⇒ ⁸⁴/₁₀₀
<u>⇒ 0,84</u>
Answer:
78
Step-by-step explanation:
Two fractions where the LCD between them is 20 can be 7/20 and 20/40.
I chose these 2 fractions because 7/20 cannot be reduced anymore, but 15/40 can be reduced into 10/20.
Answer:
<h3>
Therefore the angles of the triangle are 52.5°, 105°,49.5°.</h3>
Step-by-step explanation:
Triangle:
- The sum of the angle of triangle = 180°
- Heron's formula the area of triangle =
s= semi-perimeter 
Given that , first angle is twice the second angle, and the second angle is 30° larger than the third angle.
Consider the second angle of the triangle be x.
Then first angle = twice the second angle
=2× second angle
=2x
The third angle+30° = second angle
⇒third angle= second angle -30°
= x- 30°
We know that,
First angle + second angle+ Third angle = 180°
⇒2x+x+x-30°= 180°
⇒4x = 180° +30°
⇒4x=210°

⇒x=52.5°
Therefore the angles of the triangle are 52.5°, (2×52.5°),(52.5°-30°)
=52.5°, 105°,49.5°
Answer:
a
Step-by-step explanation:
I think it is undefined