Zoe wants to make a driveway. the driveway is going to be straight with width 6.2m and length 4.9m zoe works out she needs to dig out earth to a depth of 0.225m to make the driveway. she will put the earth she digs out into skip bags. each skip bag can hold 0.87m³. zoe has 8 skip bags. does zoe have enough skip bags for the earth? write your answer show a check of your answer show your working and check clearly

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

72 the length of a side of a triangle is 36. a line parallel to that side divides the triangle into two parts of equal area. find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.