If seven x multiple by 3 is 63, what is x?
2 answers:
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Answer:
B
Step-by-step explanation:
Use SOHCAHTOA.
sinθ =
Opposite side length= 12
Hypotenuse length = 37
Find the adjacent side length (b) using the Pythagorean theorem.
b = 35
tanθ = = 12/35
Choice B is the correct answer.
Positive exponent? An index would imply that the base, x, had a fractional exponent.
My Dear Aunt Sally used to say, "If there's a negative exponent in your face, then flip your base!"
In other words, if the exponent is negative, take the reciprocal of the base, x →
and change the exponent to positive.
Therefore:
I have cross the fraction bar line change the exponent sign.
My Dear Aunt Sally used to say, "If there's a negative exponent in your face, then flip your base!"
In other words, if the exponent is negative, take the reciprocal of the base, x →
Therefore:
I have cross the fraction bar line change the exponent sign.