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3 years ago

Which of the following is the most appropriate unit to describe the rate of the cost of gasoline?

Mathematics

2 answers:

Snowcat [4.5K]3 years ago

6 0

Answer:

Dollars per gallon, because the dependent quantity is the dollars.

Step-by-step explanation:

Dollars is the dependent quantity because it depend on the gallons of gas we have pumped and changes accordingly. The volume of gasoline is an independent variable which price depends on.

A dependent variable is one, who depends on other entities. If the value of one entity changes, the value of the dependent variable also changes.

malfutka [58]3 years ago

3 0

Dollars per gallon because the dependent quantity is the dollars

Dollars is the dependent quantity because the amount you pay depends on how many gallons you've pumped.

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Vikki [24]

Answer:

$Area = 112.1 m^2$

Step-by-step Explanation:

Given:

∆WXY

m < X = 130°

WY = x = 31 mm

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Required:

Area of ∆WXY

Solution:

Find the length of XY using Law of Sines

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x = WY = 31 mm

W = 180 - (130 + 26) = 24°

w = XY = ?

$\frac{w}{sin(24)} = \frac{31}{sin(130)}$

Multiply both sides by sin(24) to solve for x

$\frac{w}{sin(24)}*sin(24) = \frac{31}{sin(130)}*sin(24)$

$w = \frac{31*sin(24)}{sin(130)}$

$w = 16.5 mm$ (approximated)

$XY = w = 16.5 mm$

Find the area of ∆WXY

$area = \frac{1}{2}*w*x*sin(Y)$

$= \frac{1}{2}*16.5*31*sin(26)$

$= \frac{16.5*31*sin(26)}{2}$

$Area = 112.1 m^2$ (to nearest tenth).

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