Type the correct answer in each box. Use numerals Instead of words. If necessary, use / for the fraction bar(s). The grades recelved by 200 students follow a normal distribution. The mean of the grades is 70%, and the standard deviation is 7%.
The number of students who received a grade greater than 70% is about
and the number of students who got a grade higher than
8496 is about
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Which of the following is true for the relation f(x)=2x^2+1

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b