Answer:132 combinations
Step-by-step explanation:
<span>In the Granger cases of the 1870s involving railroad regulation, Supreme Court decisions were significant because the decisions established that
</span><span>2. government can regulate private business in the public interest
In response to the Supreme Court's 1886 ruling with regards to the Granger cases, Congress passed the Interstate Commerce Act of 1887. This act allowed federal regulations to be implemented on interstate lines.</span>
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<u>Given</u>:
The length of DE is 8 cm and the measure of ∠ADE is 60°.
We need to determine the surface area of the pyramid.
<u>Length of AD:</u>
The length of AD is given by
Length of AD = 8 cm
<u>Slant height:</u>
The slant height EF can be determined using the trigonometric ratio.
Thus, we have;
Thus, the slant height EF is 4√3
<u>Surface area of the square pyramid:</u>
The surface area of the square pyramid can be determined using the formula,
Substituting the values, we have;
The exact form of the area of the square pyramid is
Substituting √3 = 1.732 in the above expression, we have;
Rounding off to one decimal place, we get;
Thus, the area of the square pyramid is 174.8 cm²