I like the coefienti in front of 2nd degree to be positive
times -1
x^2-4x=-x+4
add x to both sides and minus 4 from both sides
x^2-3x-4=0
factor
what 2 numbers multiply to get -4 and add to get -3?
-4 and 1
(x-4)(x+1)=0
set to zero
x-4=0
x=4
x+1=0
x=-1
-1 and 4
C is answer
Answer:
4/7
Step-by-step explanation:
Probability is the likelihood or chance that an event will occur.
Probability = Expected outcome/Total outcome
Given
Total outcome = 2blue ties+1red tie+2blue coats+2orange coats
Total outcome = 7
If he wears a blue tie, then the expected outcome will be 2.
Probability that he wears blue tie = 2/7
If he wears a blue coat, then the expected outcome will be 2.
Probability that he wears blue coat = 2/7.
The probability that he wears either a blue tie or a blue coat will be 2/7+2/7 = 4/7
Answer:
Step-by-step explanation:
What’s that tho?
-7 is less than 16 because -7 goes behind 0 and 6 is a positive number
