Answer:
answer is first option

wherein, a = 1, b = -3, c = -5
Hi there,
Please check the attached image for answer.
<em>Hope </em><em>it </em><em>helps </em><em>.</em><em>.</em><em>.</em>
Answer:
Step-by-step explanation:
Sin80° = opp/hyp
Sin80° = 21/y
ysin80° = 21
y = 21/sin80°
y = 21.3
Answer: she scored 4 points
Step-by-step explanation: 5% of 80=4
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Psi stands for pounds per square-inch.
It is a measure of pressure, and is the equivalent pressure of putting one pound on a square-inch of area.
For example, someone weighing 180 pounds standing on his feet, with a footprint area of 72 square-inches would exert a pressure of 180 pounds/72 square inches = 2.5 pounds per square-inch, or 2.5 psi.