Best first answer will get ! 25 ! harold wants to get at least a grade of 90 in math class. his grade will be the average of two test scores. he got a 86 on the first test. what is the lowest grade harold needs to get on his second test to meet his goal?

Find the value of the variable and the length of each chord for #5 and #6.

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect

Which is an example of using the distributive property to multiply -5x^3(3x^2+3x-1) ?