Rita discovered that a lab thermometer in her Chemistry class is not accurate. She created the table to show the relationship be
tween x, the thermometer’s temperature reading, and y, the actual temperature. Which equation represents the relationship between x and y shown in the table?
A. y=x+1
B. y=-x
C. y=4x
D.y=x+4
A. y=x+1
B. y=-x
C. y=4x
D.y=x+4
2 answers:
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Answer:
x = 7.99 cm
Step-by-step explanation:
By applying cosine rule in the given triangle,
AC² = AB² + BC² - 2(AB)(AC)cosC
Substitute the measures of the sides and the angle in this formula,
x² = 6² + 10² - 2(6)(10)cos(53°)
x² = 36 + 100 - 72.217
x² = 63.782
x = √(63.782)
x = 7.99 cm
