Answer:
23,4
Step-by-step explanation:
To solve the exercirses which are shown in the figure attached, you must follow the proccedure below:
7) (x)=x³-6x²+8x
(x)=x(x³-6x²+8)
(x)=(x-4)(x-2)x
The lenght is: x
The height is= (x-4)
8) √(2x+8)-6=4
1. You need to clear the variable "x". Then:
√(2x+8)=4+6
√(2x+8)=10
(√2x+8)²=10²
2x+8=100
2x=100-8
x=92/2
x=46
9) l4x+3l=9+2x
1. To solve the left member, you must evaluate two cases: it could be positive,or negative. Then:
2. Negative:
l4x+3l=9+2x
-4x-3=9+2x
-4x-2x=9+3
-6x=12
x=12/-6
x=-2
3. Positive:
l4x+3l=9+2x
4x+3=9+2x
4x-2x=9-3
2x=6
x=6/2
x=3
Subtract the two over to cancel it out
3x=36
then divide by 3 to get an answer of
x=12
Answer:
Mel fills his gas tank up with 6 gallons of premium unleaded gas for a cost of $26.58. How much would it cost to full an 18 gallon tank?
or
Jacob ran 10 miles in 80 minutes. At that rate how far would he run in 2.5 hours?
Answer:
~ 639.75 cm^3
Step-by-step explanation:
see pic
<h2>
Edit: I did this with the assumption that 12 was the diameter, if it's the radius disregard this please</h2>
