Answer:
10k-5x-12.2
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Look at the X and Y coordinates carefully. X and Y coordinates are swapped and Y coordinate got negative sign.
Step-by-step explanation:
z = (x − μ) / σ
z = (65 − 69) / 3.5
z = -1.14
Answer:
a + b =1
Step-by-step explanation:
Write the given quadratic as x^2 – 1x – 90 = 0. This factors into
(x - 10)(x + 9) = 0, and so the roots/solutions are {-9, 10}.
If we call -9 "a" and 10 "b," then the sum a + b is -9 + 10, or a + b =1.