Jen ZanUniversity of British Columbia
A pom-pom manufacturer makes each of its pom-poms with 35% white strands (w), 25% blue strands (b), and 40% red strands (r). If each pom-pom has a total of 80 strands, how many of strands of each color are needed to make a pair of pom-poms? In this activity, you'll work through this pom-pom problem step by step. See attached filed for further information.
- What behavioural expectations would you set for Bradley to improve his interactions with other children and educators? List three expectations/goals.
Bradley is a three-year-old boy who attends your service two days a week. He has been in the pre-school room for the last three months and during that time his behaviour has become increasingly challenging. Bradley is openly defiant to all but one of the educators. He refuses to follow directions, join in on group time, or participate in planned activities. When asked to join a group, he screams ‘No’, and, if pressed, will swear and throw objects at the educators. He wanders aimlessly around the room, sabotaging the other children’s work, knocking over their block constructions, or scribbling on their drawings. He lashes out physically towards the other children for no apparent reason, and they are now so scared of him that they avoid him whenever possible. When the educators have tried to discuss Bradley’s increasingly disturbing behaviour with his family they have appeared disinterested and make flippant remarks like ‘kids will be kids’ or ‘that’s boys for you’.
Yesterday Bradley attempted to run away from the service by sneaking out to the outdoor play area and trying to scale the fence. When an educator tried to get him down from the fence, he kicked her in the face, causing her nose to bleed.
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. A 1.248 g limestone rock, which contains CaCO3 and other compounds, is pulverized and treated with 30.00 mL of 1.035 M HCl solution. The excess acid requires 11.56 mL of 1.010 M NaOH for neutralization. Calculate the percent by mass of calcium carbonate in the rock, assuming it is the only substance reacting with the HCl solution.
The volume V of an ideal gas varies directly with the temperature T and inversely with the pressure P. A cylinder contains oxygen at a temperature of 310 degrees K and a pressure of 18 atmospheres in a volume of 120 liters. Find the pressure if the volume is decreased to 105 liters and the temperature is increased to 350 degrees K.
Round your answer to two decimal places.
A survey of 1800people who took trips revealed that 128 of them included a visit to a theme park. Based on those survery results, a management consultant claims that less than 88 % of trips include a theme park visit. Test this claim using the 𝛼=0.01significance level.
The test statistic is
The critical value is