Answer:
Area of a circle- <em>pi </em>x <em>r </em>square
3.14 x 2 x 2
= 3.14 x 4
= 12.56
Round off- 13
Answer: y = -3.5x - 4.5
suppose: the equation of the line is y = ax + b ( a ≠ 0 )
because the line passes through (-2;2.5) => 2.5 = -2a + b
the line passes though (0;-4.5) => -4.5 = b
=> b = -4.5
2.5 = -2a + b
=> a = -3.5
b = -4.5
=> the equation of the line is y = -3.5x - 4.5
Step-by-step explanation:
Answer:
Step-by-step explanation:
Please see the attached picture for the full solution.
Answer:
£11.22
Step-by-step explanation:
100% = £13.20
50% = £6.60
10% = £1.32
5% = £0.66
so you would add 10% and 5% together which gives you 15% and 15% is £1.98
and then you could to £13.20 - £1.98 which equals to £11.22
Answer:
3x +19
Step-by-step explanation:
(9-6-4x+9)+(12+7x-5)
(12-4x)+(7+7x)
3x+19
