Answer:
Step-by-step explanation:
we can write -1 for;
s(-1)= 4^3(-1)
4^-3 = 1/64
Answer:
<em>26ft</em>
Step-by-step explanation:
<em>Complete Question:</em>
<em>The equation a = 26w gives the area of a (in square feet) of a rectangle dance floor with a width of w feet. Find its length</em>
<em></em>
Formula for calculating the area of a rectangle is expressed as shown;
Area of a rectangle = Length * Width
Given the equation a = 26w that gives the area of a rectangle
On comparing with the formula;
Length * Width = 26w
Length = 26ft (by comparison)
<em>Hence the length of the rectangle is 26ft</em>
Answer: the fuel efficiency of the first car is 20 miles per gallon.
the fuel efficiency of the second car is 15 miles per gallon.
Step-by-step explanation:
Let x represent the number of miles per gallon of the first car.
Let y represent the number of miles per gallon of the second car.
During one particular week, the first car consumed 20 gallons of gas and the second consumed 15 gallons of gas. The two cars drove a combined total of 625 miles. It means that
20x + 15y = 625- - - - - - - - - - 1
The sum of their fuel efficiencies was 35 miles per gallon. It means that
x + y = 35
Substituting x = 35 - y into equation 1, it becomes
20(35 - y) + 15y = 625
700 - 20y + 15y = 625
- 20y + 15y = 625 - 700
- 5y = - 75
y = - 75/ - 5
y = 15
x = 35 - y = 35 - 15
x = 20
Answer:
124.8 Inches
Step-By-Step
1/2 0.835 Inches = 0.4175
r = 0.4175
h = 0.077
A=2πrh+2πr^2
A=2π(0.4175)(0.077)+2π(0.4175^2)
A = 3.12
Nickel = 5 Cents
$2 = 200 Cents
200 / 5 = 40
(3.12)(40) = 124.8 In
