Solve for x 5-3x - 1 = 25
2 answers:
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Answer:
Step-by-step explanation:
To answer all the parts given find the equation of the line given in the graph.
Let the equation is,
y = mx + b
m = slope of the line
b = y-intercept
x = time
y = Amount of water
Slope of a line passing through two points and
is,
m =
Slope of the given line passing through (0, 80) and (1, 320)
m =
m = 240
Y-intercept 'b' = 80
Therefore, y = 240x + 80 will be the equation.
a). At x = 0
y = 240(0) + 80
y = 80 liters
b). As the time is increasing amount of the water is increasing
Rate of increase in the water = Slope of the line
= 240 liters per minute
Answer:
The area = 182.52 sq units.
Step-by-step explanation:
- Area of regular polygon can be found by splitting into smaller triangles.
- Each triangle has base as side of polygon and vertex as center of polygon.
now consider ΔOAB,
we know ∠AOB = ° =72°
as ∠AOD = (∠AOB)/2 = 36°
Now we know AD=AB/2 = =5.15 m
using trignometric relation tan(∠AOD) =
⇒OD = =
AREA OF TRIANGLE = BASE × HEIGHT /2
area of ΔOAD = × 5.15 ×
=
<u>As there are 10 such triangles like </u>ΔOAD
Total area =10×
= 182.525447428574
