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

560 has 0.6 z-value, 450 has -0.5 z-value, 640 has 1.4 z-value, 530 has 0.3 z-value

Step-by-step explanation:

I had this qution on a test on time

please mark me as brainliest

"if it is my birthday, then it is snowing"

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option