Which one of the following examples represents a proper fraction?
Answers
Answer 1
Answer:
B. because its not an improper fraction and a proper fraction is the numerator is less than the denominator
Answer 2
Answer:
The answer is B because this is the only one where both numerator and denominator don't have a common factor or can be changed into a mixed number.
2) C, 3:5 Because there are 9:15 boys, so divide by 3
3) C, 33 yards Convert 1200 inches into yards, it makes 33.3
1) What is the mathematical relationship between a^n and a^-n ? Explain
2) A positive exponent shows repeated multiplication . What repeated operation does a negative exponent show ?
I really need your help ! Thanks
Answers
A negative exponent (-n) just means that your base (a) is on the wrong side of the fraction bar meaning you would need to flip it to the other side. For example; if you have to write 2x^-3 using only positive exponents. you have 2x^-3/1 so you would have to move the negative exponent to the bottom which gives you 2/1x^3.
make sense?
Your sister is starting 9th grade next year and is thinking about going to college. What step would you recommend she take first?
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Take a placement test and she if the college she want to go to will take someone her age usually Tech school have some programs that will take people at 16 but some might not.
have her score high on standardized tests, research interests, figure out transportation/accommodation once she leaves HS.
The roller on a computer printer makes 2200 revolutions per minute. what is its angular velocity?
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(2200 rev/min) x (360 deg/rev) x ( min/60 sec) = 13,200 degrees per second
(2200 rev/min) x (2 pi radians/rev) x (min / 60 sec) = 73 and 1/3 pi radians/sec
Can you name the trigonometric expression that is equivalent to the following expression 1/secant of x?
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The answer to your question is: Yes, I can.
You haven't asked for the trigonometric expression, but here it is anyway:
The cosine function is the reciprocal of the secant function.