Answer
i dont know the anwser but im trying to do a quest
Step-by-step explanation:
Answer:
1090miles/gallon approximately
Step-by-step explanation:
On average a Sedan tank can hold 18.5 gallons.
If it's 75% full, it means it is 18.5 x 0.75 = 13.875 gallons full.
Since the number of miles covered was recorded as 15121 with 75% full gas tank, then to determine mile/gallon can be found by
15121/13.875 ≈ 1090miles/gallon
As long as no work needs to be shown, X=18.
Answer:
The expression that fits into the box is x¹⁵⁸
Step-by-step explanation:
Let the empty box be y
(x¹²)⁵ × (x⁻²)⁹ × y = (x⁴⁰)⁵
Here, we will apply the laws of indices.
The laws of indices gives the answer for the expressions
1) xᵏ × xˢ = xᵏ⁺ˢ
2) xᵏ ÷ xˢ = xᵏ⁻ˢ
3) (xᵏ)ˢ = xᵏ•ˢ
So,
(x¹²)⁵ = x⁶⁰
(x⁻²)⁹ = x⁻¹⁸
(x⁴⁰)⁵ = x²⁰⁰
(x¹²)⁵ × (x⁻²)⁹ × y = (x⁴⁰)⁵
Becomes
x⁶⁰ × x⁻¹⁸ × y = x²⁰⁰
x⁶⁰⁻¹⁸ × y = x²⁰⁰
x⁴² × y = x²⁰⁰
y = x²⁰⁰ ÷ x⁴²
y = x²⁰⁰⁻⁴² = x¹⁵⁸
Hope this Helps!!!
Step-by-step explanation:
let the number be x
12x-59=x²-2
12x-x²=59-2
12x-x²=57
12x-57=x²
x=root of 12x-57
