Answer: -6
Step-by-step explanation: the first step is divide 3 from -18 to get X by its self the correct answer is x=-6
The two roots 
and 
are called <u>conjugate</u> radicals
<h3>Conjugate of a radical </h3>
The conjugate of a radical is the value which when multiplied with the radical expression clears the radical. Conjugates have the same numbers but the opposite sign in the middle.
The given roots are
and
They have the same numbers but opposite signs in the middle.
Hence, the two roots and are called <u>conjugate</u> radicals
Learn more on Conjugate radicals here: brainly.com/question/20523059
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Answer:
Y=6
Step-by-step explanation:
What it means is that the x is -3, so you take the -3 and plug it into the x.
Y=-1/3(-3)+5.
Y=1+5
Y=6 is your answer.
The answer is a bc it’s pointing upwards which makes it positive and the rise is 5 and the run making it 2/5
Answer:
therefore x = 600 mph
therefore the speed of the other plane y = x - 110 = 600 - 110 = 490 mph
Step-by-step explanation:
i) Two planes are 2725 miles apart and are travelling towards each other.
ii) One plane is travelling 110 mph faster than the other plane.
iii) the planes pass each other in 2.5 hours
iv) let the speed of one plane be x mph
v) let the speed of another plane be y mph
vi) therefore x - y = 110 mph
vii) and also x + y = 2725/2.5 = 1090
viii) adding the equation in vi) to the equation in vii) we get 2x = 1200
therefore x = 600 mph
ix) therefore the speed of the other plane y = x - 110 = 600 - 110 = 490 mph
