What is the radius of a sphere that has a total area of ​​

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Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x