Here you should add the like terms; so 6 + 3 = 9 and 5*(sq.root of 5) - 2*(sq.root of 5) = 3*(sq.root of 5), therefor the answer would be 3*(sq.root of 5) + 9
Remember that surds can be added or subtracted if the term underneath the square root sign is the same :)
Answer:
Step-by-step explanation:
Hi there!
Replace all x's with a-1:
I hope this helps!
(B) "antithesis"
"Antithesis" refers to the complete opposite. The line would read "At the family reunion Hiroko found her cousin lovely and gentle, the antithesis of his earlier unpleasant and dominating nature," if one were to introduce this word into the text.
The phrase implies a significant shift in Hiroko's cousin. Now "charming and gentle," he was formerly "rude and overbearing." The word "antithesis" aptly captures this abrupt shift.
The meanings of the remaining choices, A, C, D, and E, are all inappropriate, hence they are all incorrect.
Here's another question with an answer similar to this about passage reading: brainly.com/question/3521530
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Answer: option C
Step-by-step explanation:
The diagram of the triangle is shown in the attached photo. The triangle is a right angle triangle ABC
Assuming the given angle is #,
Recalling the trigonometric ratio,
tan # = opposite / adjacent
If tan # = 4, it means
opposite / adjacent = 4/1
Therefore, opposite = 4 and adjacent = 1
Applying Pythagoras theorem,
Hypotenuse^2 = opposite ^2 + adjacent ^2
Hypotenuse = AC
Opposite = 4
Adjacent = 1
AC^2 = 4^2 + 1^2 = 17
AC = ± √17
To determine cos #, we would apply another trigonometric ratio,
Cos# = adjacent /hypotenuse
Cos# = 1/±√17
Cos # =-1 /√17 or 1/√17