Need in these 3 algebra questions 7. add: (3s2 + 7s + 2) + (5s2 + 9s – 1) a. 8s2 + 16s + 3 b. 8s4 + 16s + 1 c. 8s2 + 16s + 1 d. –2s2 – 2s + 1 8. (–3t2u3)(5t7u8) = a. –15t14u24 b. 2t9u11 c. –15t–5u–5 d. –15t9u11 11. the square of a number is equal to 6 more than the number. find all such numbers. a. –4; –3 b. –2 c. 3; –2 d. –3

Asoccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.1 in

Formulate the indicated conclusion in nontechnical terms. be sure to address the original claim. the foundation chair for a hospital claims that the mean number of filled overnight beds is over 523, and she is therefore justified starting a funding campaign to add a wing to the hospital. assuming that a hypothesis test has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.

The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?