Answer:
she needs $4.52
Step-by-step explanation:
(9.5*5.50)+x=56.77
52.25+x=56.77
x=56.77-52.25
x=4.52
Answer:
x^3 + 1/x^3 = 488
Step-by-step explanation:
- x^2 + 1/x^2 = 62
- x^2 + 1/x^2 + 2 = 64
- ( adding 2 in both sides )
- (x + 1/x ) ^2 = 64
- x + 1/x = 8
now,
- ( x+ 1/x ) ^ 3 = 512
- x^3 + 1/x^3 + 3 × x × 1/x ( x + 1/x )
- x^3 + 1/x^3 + 3 ( 8 )
- ( since x + 1/x = 8 )
- x^3 + 1/x^3 + 24 = 512
- x^3 + 1/x^3 = 488
hence, we got x^3 + 1/x^3 = 488
Answer:
x=18
y=27
explanation: 4 times 3 is 12
Radius I think is 4
Because 8/2=4 and the diameter is 2 times the radius
Check work:
4*2=8
Have a awesome night/day