Answer:
As the picture shows, we have
V = (x+5)(x-2)x =30x
<=> x(x^2+3x-10) =30x
<=> x^3 + 3x^2-10x-30x = 0(*)
<=> x^3 +3x^2 -40x = 0
<=> x(x-5)(x+8) =0
Solve for (*), there are 3 solution :
5,
0(invalid),
-8(invalid)
=> 3 dimensions of rectangular box: 5, 3, 10
Well 3 x 7 + 9= 30
so 30<span> divided by 36 = 1.2
answer: 1.2</span>
Answer:

Step-by-step explanation:
we know that
The insurance company reduces the price by 2.1%
Remember that
The actual cost of £475.29 a year represent the 100%
so

To find out the new insurance cost, multiply the original cost by the factor 0.979

Answer:
A. 3:30.
Step-by-step explanation:
180 is 90+90 so that would put it in 3:30.