Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence interval of (3.1,4.1) when estimating the mean height (in centimeters) of a sample of seedlings. The estimated margin of error is square

pand and simplify (4x+3)(x+

Vhat is the value of d+5 when d=3

< Previous Bookwork code: 4G Work out the value of r in the equality below. 0.0058=5.8times 10^r (1) Watch video Calculator not allowed Answ ier

P=5^2times 18^2 Write P as a product of its prime factors. Give your answer in index form. P=Theta square

) Dan calculates that 43-17=26 Write an inverse calculation he could use to check his answer. square

(b) Simplify 3xy+2xy-xy

IS Write 0.0008 in standard index form. Watch video Answe

1. HaǐTH lim _(xarrow -infty )(1+(2)/(x))^x+5

MaRS Task: Nachines Machines Robert works in a factory that manufactures parts. He thinks that as the machines in the factory get older they make fewer parts each day. He collects the following data to see if he is correct. Machine A B C D E F G H I j Age in months 108 82 100 96 88 84 88 90 100 94 Number of parts made each day 110 300 160 200 270 290 190 230 170 220 Robert plots the number of parts made each day against the age of each machine. 1. The data for the first five machines Ato E,has been plotted for you. Plot the points for the rest of the machines.

Find the value of p in this equation: 3p+2=7p-10