PLEASE HELP‼️
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The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

Which of the following is true for the relation f(x)=2x^2+1

What is the equation of a line passing through (-6,5) and having a slope of 1/3