Mathematics, 25.01.2021 20:20 keke2933
A school district has 1,200 students entering the first grade. Each child is administered an
irytelligence test that is known to have a mean of 100 and a standard deviation of 15. State guidelines
require that children scoring either above 125 or below 75 be enrolled in special enrichment
programs. How many children will the school district expect to enroll in the enrichment programs
for this group of first graders?
(A) 50 (B) 57 (C) 114 (D) 120 (E) 1085
Answers: 2
Mathematics, 21.06.2019 21:30
At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.
Answers: 1
Mathematics, 21.06.2019 23:00
The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z
Answers: 2
Mathematics, 22.06.2019 00:30
Efficient homemakers ltd. makes canvas wallets and leather wallets as part of a money-making project. for the canvas wallets, they need two yards of canvas and two yards of leather. for the leather wallets, they need four yards of leather and three yards of canvas. their production unit has purchased 44 yards of leather and 40 yards of canvas. let x be the number of leather wallets and y be the number of canvas wallets. draw the graph showing the feasible region to represent the number of the leather and canvas wallets that can be produced.
Answers: 1
A school district has 1,200 students entering the first grade. Each child is administered an
irytel...
Mathematics, 28.07.2019 17:30
Mathematics, 28.07.2019 17:30
Biology, 28.07.2019 17:30