bill bought a new cellular phone. his monthly bill will be $34.99 each month which includes 100 minutes of use. additional minut
2 answers:
Answer:
Step-by-step explanation:
The slope-intercept form is given by:
where m is the slope and b is the y-intercept or initial value.
Here, c(m) represents the cost of bill c in terms of m and m represents the number of minutes.
As per the statement:
Bill bought a new cellular phone. his monthly bill will be $34.99 each month which includes 100 minutes of use.
⇒
It is also given that additional minutes will cost $0.23 per minute.
⇒For additional minutes, he will cost per minute = $0.23
for m minutes, he will cost $0.23 m
Using the point slope intercept form we have;
Therefore, an equation that represents the cost of the bill used above the 100 that are included in the base price is:
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Answer:
Heptagon = 84 ft²
Octagon = 186 yd²
Triangle = 48√3 m²
Step-by-step explanation:
where:
= length of apothem
= perimeter
<u>Heptagon</u>
a = 5.0 ft
p = 33.6 ft
⇒ area = 1/2 x 5.0 x 33.6 = 84 ft²
<u>Octagon</u>
a = 7.5 yd
p = 8 x 6.2 = 49.6 yd
⇒ area = 1/2 x 7.5 x 49.6 = 186 yd²
<u>Triangle</u>
Formula for the apothem of an equilateral triangle :
where
= side length
a = 4, so:
Now we know the side length, we can calculate the perimeter (p):
p = 3 x 8√3 = 24√3
⇒ area = 1/2 x 4 x 24√3 = 48√3 m²