4. A comprehensive study conducted by the National Institute of Child Health and Human Development tracked more than 1,000 child
ren from an early age through elementary school (New York Times, November 1, 2005). The study concluded that children who spent more time than 30 hours a week in child care before entering school tended to score higher in math and reading when they were in the third grade. The researchers cautioned that the findings should not be a cause for alarm because the differences were found to be small. Explain how the difference between the math and reading score for the child care group and the overall mean for third graders could be small but the researchers could still reach the conclusion that the mean for the child care group is significantly higher than the overall mean.
1 answer:
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well, a right-triangle has 90° total, so if one of the acute angles is taking up 74°, then the other is just 90° - 74°.
Answer:
there is only one solution
3x - 1 = 2x
x - 1 = 0
x = 1
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90
Step-by-step explanation:
9^2 = 81 and 3^2 = 9
81 + 9 = 90
Answer:
180 -88 = 92 degrees
Step-by-step explanation:
The answer is A- 3.84 meters