Answer:
Step-by-step explanation:
Since it is a right-angled triangle, it has base, perpendicular and hypotenuse.
Base = r
Perpendicular = 14
Hypotenuse = r + 7
<u>Using Pythagoras theorem:</u>
Put the values
(r + 7)² = (r)² + (14)²
Using formula a² + 2ab + b² = (a + b)²
r² + 14r + 49 = r² + 196
<em>Subtract</em> r² to both sides
14r + 49 = 196
<em>Subtract</em> 49 to both sides
14r = 196 - 49
14r = 147
<em>Divide</em> 14 to both sides
r = 147 / 14
r = 10.5
It is 3f - 9
So you multiply f by 3 and subtract 9
As simple as that!
Answer:
46.6667
Just divide by three!
Step-by-step explanation:
Answer:
1+1=100
Step-by-step explanation:
- 100/28=<u>17m0</u>
<em><u>Halimbawa</u></em><em><u>:</u></em>
<h2><em>Qpe0183</em></h2><h3><u>Uahus</u></h3>
Answer:
105 km
Step-by-step explanation:
Written as a proportion, the ratio of km to cm will be the same for both distances:
(x km)/(17.5 cm) = (15 km)/(2.5 cm)
x km = (15 km)(17.5/2.5) = 105 km
105 actual kilometers are represented by 17.5 cm on the map.