Arectangular box has the dimensions shown. (a) determine the angle bac to the nearest degree. (b) determine the area of the triangle abc to the nearest tenth of a cm. useful relations: law of cosines: c2 a2 b2 2ab cos n)c2=a2+b2? 2ab* heron’s formula for triangular area: a=\sqrt{p(p-a)(p-b)(p-c)}a=p(p? a)(p? b)(p? c), where p=\frac{a+b+c}{2}

answer:

an example of solubility is salt or sugar dissolving in water.

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the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

explanation:

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