21.5 degrees
Subtract 180 from 48.3 and then add it to 26.8. Take this value and subtract it from 180 and you will get a final answer of 21.5
76.88 I just typed it in on a calculator.
The amount of roses given out would be 300 roses in total.
Multiplying the linear expressions, the correct sequence is given as follows:
<h3>How are linear expressions multiplied?</h3>
They are multiplied applying the distributive property, in which all the terms are multiplied and the like terms are combined.
Hence:
5x(-3 -7x)
(5x)(-3) + (5x)(-7x)
-15x - 35x²
Hence the last option is correct.
More can be learned about the multiplication of linear expressions at brainly.com/question/14758247
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Rewriting the left hand side,
csc²t - cost sec t
= (1/sin²t)-(cost)(1/cost)
= 1/sin²t - 1
= 1/sin²t - sin²t/sin²t
= (1-sin²t)/sin²t
= cos²t/sin²t
= cot²t
