N=10-7
n=3
Now
2n-2
2*3-2
6-2
4
-8≤8x
Divide both side by 8
-1≤x
x≤1
(When u multiply or divide by a negetive number direction of inequality chenges)
Answer:
824
Step-by-step explanation:
the answer is 824
Answer:
11
Step-by-step explanation:
-4x + 7 ; x = -1
-4x (-1) + 7
4 + 7 = 11
Answer:
C
Step-by-step explanation:
Finding the z-score:
z = (x - μ) / σ
z = (66 - 57) / 9
z = 1
Using a z-score table or calculator:
P(z < 1) = 0.8413
84.13% of 4000 is:
0.8413 (4000) = 3365.2
Rounding up to the nearest whole number, approximately 3366 students will score less than 66. Answer C.
