Which pattern follows the given rule? rule: start with 10 and then multiply each term by 3 to get the next term. a. 10, 13, 20, 23, . . b. 10, 13, 16, 19, . . c. 10, 30, 90, 270, . . d. 10, 30, 60, 120, . .

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is