Just divide 5/4 = 1.25. Thank you.
The answer is 45. there are 5 sides. each one is 9cm. 9*5= 45.
hope this helps.
(7+x)+x=15
I did trial and error to get x=4.
If you expand out the brackets you get this,
(4+5i)(a+2i) = 4a + (5a)i + 8i - 10
The -10 comes from 5i * 2i.
Squaring i becomes -1.
Let's group the real stuff together,
and imaginary separately,
(4a - 10) + (5a + 8)i
For this to be purely imaginary,
the real part needs to be zero.
Therefore 4a - 10 = 0
Solve for a.
Answer:
BR bisects the angle ABC, and is called the bisector of angle ABC.
Step-by-step explanation:
Step 1: Draw an arc with B as the centre to cut the arms, BA and BC, of the angle at P and Q respectively.
Step 2: Using the same radius, draw an arc centred at P.
Step 3: With centre Q and using the same radius, draw an arc to cut the arc in Step 2 at R.
Step 4: Join, B, the vertex of the angle to the point R.
