What is an expression for the distance between the origin and a point P(x, y)? A. d=0
B. d = √ x² + y²
C. d = √x² - y²
D. d= Vy2 – 22

Ageologist had two rocks on a scale that weighed 4.6 kilograms together. rock a was 0.5 of the total weight. how much did rock a weigh?

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?

2x minus y equals 6, x plus y equals negative 3