Step-by-step explanation:
-2x(x2 - 3)
-2x³+6x
Hope it helps ☺️
Answer:
41 people attended the party
Step-by-step explanation:




Quick steps to solve this.
1. Lets square both. (X +Y)*2 = 7*7
2. Then, X*2 + 2XY + Y*2 = 49
3. Since XY is given to 4, X*2 + 8 + Y*2 = 49
4. Move 8
5. X*2 + Y*2 = 49 - 8
6. X*2 + Y*2 = 41
The answer is "41" Boom!
Answer:
r = 8 cm
Step-by-step explanation:
The circumference of a circle is given by
C = 2 * pi *r
50.24 = 2 * (3.14) *r
50.24 = 6.28r
Divide each side by 6.28
50.24/6.28 = r
8 =r
Answer:
$5.50
Step-by-step explanation:
100% of the total bill was $27.50
10% will be 100% divided by 10
10% = $27.50 ÷ 10
10% = $2.75
20% will be double 10%
20% = £2.75 × 2
20% = $5.50