Natara is training to run a 26-mile marathon. Each week, she increases the distance she runs on her training days. Over the firs
1 answer:
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The main idea is using the Pythagorean formula to find the length of line segment .
Alr so you use the formula
is already given and is
and is
So using algebraic rules you'll get as:
Now using the formula: , you can find the area of tri ABD and CBD which would be
and
so add them up and you get
!
Answer:
The above expression shows that ratios of the areas of the circles are equal to the square of the ratio of their radii.
Step-by-step explanation:
Radius of first circle = 9 inches
Area of first circle =
Area of first circle = 9 × 9 × π = 81 π
Now, since the radius is multiplied by 2/3 for from a new circle.
∴ Radius of the second circle =
Area of second circle =
Area of second circle = 6 × 6 × π = 36 π
Now,
∵ = 9 inches and
= 6 inches
The above expression shows that ratios of the areas of the circles are equal to the square of the ratio of their radii. i.e.,
Answer:
66 km
Step-by-step explanation:
Given that
Number of km's traveled by a car using g liters of gasoline = 12g
Number of gallons of gas required to travel 12g kilometers = g
We have to find
How far this car can travel using or 5.5 liters of gasoline = x= ?
Now we can find this by substituting g= in the the above equation representing number of kilometers traveled by the car.
Number of km's traveled by a car using liters of gasoline = 12 (
)
x = 12 (5.5)
x= 66 km
So, the car travels 66km in 5.5 liters of gasoline