Answer:
Step-by-step explanation:
b = number of boys
the sum of the number of boys and 15 girls
" the sum " means add
ur expression is : b + 15 <===
Answer:
I think you just have to plug the 7 in for x so b(x)=6
Step-by-step explanation:
(5·7)-5=30
(3·7)-16=5
30/5=6
Answer:
Step-by-step explanation:
2x = 100
2x=100. Divide two on each side
X= 50
Answer:
arg (w)=π/4 and |w|=√2
Step-by-step explanation:
If z= x+iy is a complex number, then |z| is given by √ ( x²+y² ).
And the argument (z) is given by Ф = tan⁻¹ ( y/x ) where -π < x < π.
Now, in our case w= 1+i i.e. x=1 and y=1.
Therefore, arg (w) = tan⁻¹ (1/1) = π/4 and |w|=√ ( 1²+1² ) = √2 (Answer)
1 and 3 are in the ten thosands place.
