I think it’s the last one
Circumference = (π) x (diameter)
Circumference = 8π
(π) x (diameter) = 8π
Diameter = 8
Radius = 4
Area = π x (Radius)²
Area = π x (4)²
Area = π x (16) = <u>50.27 units²</u> (rounded)
A 2:4
B 4:6:12
C 0.6:2.4
Distance from school to shop is 12 km
F(x) also means substitute the x
Not rly sure about g(x) but a teacher told me it is almost the same because it is just substitute.
F(x)=2x^2+6x-8
G(x)=-3x-3
So substitute 1 to the x’s
2(1)^2+6(1)-8
-3(1)-3
I will solve the first one first then next
2(1)^2+6(1)-8
First multiple
2+6-8
Next just solve that
ANWSER ONE IS ZERO
Next
-3(1)-3
Multiple
-3-3
Just solve it
ANWSER TWO IS -6
Based on the graph the car requires 2.5 gallons of fuel to travel 100 miles.
Given:
The graph shows a proportional relationship between the distance a car travels and the fuel it consumes.
Distance (miles) Fuel(gallons)
0 0
40 1
80 2
120 3
160 4
200 5
240 6
280 7
From the table:
1 gallon fuel = 40 miles
1 mile = 1/40 gallon fuel
multiply by 100 on both sides
100 miles = 100/40 gallons fuel
100 miles = 5/2 gallons fuel
100 miles = 2.5 gallons fuel.
Therefore the car requires 2.5 gallons of fuel to travel 100 miles.
Learn more the distance and fuel here:
brainly.com/question/28809733
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