Are there any more choices? it looks like B because the graph is decreasing.
Answer:
x=0,
Decimal form,
x=0,1.30766048......
Step-by-step explanation:
x=
x-=0
(take x as a common factor)
x(-)=0
So,
x=0 and -=0
for -=0
(add for both sides)
=
x= (multiply 3 by 2)
x=
So,
x=0,
Answer:
7 students play an instrument.
Calculation:
35=100%
20%=[20×35]÷100
=7
Answer:
see explanation
Step-by-step explanation:
(a)
Note the squared value in column 3 which is the square of 1 more than the row number, that is
row 2 → (2 + 1)² →3²
row 3 → (3 + 1)² → 4²
Find the square root of 676 = 26 → (25 + 1)² = 26²
Hence the row number is 25
(b)
The pattern in column 1 is [ row number × (row number + 2 ) + 1 ]
row number is n then n(n + 2) + 1 = n² + 2n + 1