Mathematics, 05.05.2020 10:37, janiya73
Four students took a national standardized test for which the mean was 500 and the standard deviation was 100. If a student's value was 1:75 on the test, what was the student's score?
a. 675
c. 645
b. 650
d.700
Answers: 2
Mathematics, 21.06.2019 19:00, lexipooh7894
What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)
Answers: 1
Mathematics, 22.06.2019 00:30, Haileydusenbery
How many doughnuts are equal to 20 cookies.? 3 apples = 5 bananas6 cookies = 7 apples2 doughnuts = 1 banana
Answers: 2
Mathematics, 22.06.2019 00:30, aspenbaxter201634
Astudent was asked to find the square of 7x+3. the student quickly wrote (7x+3)^3= 49x^2+9. identify the student's error and provide the correct answer.
Answers: 3
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