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Answer:
Step-by-step explanation:
The prime numbers between 1 and 10 are;
1, 2, 3, 5, 7
The probability of drawing the first card =
Since there is no replacement, the probability of drawing the second card =
The probability of selecting two prime numbers between 1 and 10 without replacement = ×
=
Answer:
b = - 21
Step-by-step explanation:
calculate m using the gradient formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (- 4, - 5) and (x₂, y₂ ) = (- 6, 3)
m = =
= - 4
y = - 4x + b ← is the partial equation
to find b substitute either of the 2 given points into the partial equation
using (- 4, - 5 ), then
- 5 = 16 + b ⇒ b = - 5 - 16 = - 21