What is the value of 13x^-3y^-1 when x=-1 and y=4
A)-13/14
B)-52
C)-4/13
D)-156
(If you go to connections academy PLEASE GIVE THE ANSWERS I WANNA MAKE SURE IM RIGHT I REALLY NEED THIS) lesson 9 unit test
Y’all the answer was -13/4
no clue about how the 13x^-3y^-1 suppose to be looked like. Please make it clear if you really want help.
Well, let me calculate that for you ... with a twist of humor!
First, let's take care of those negative exponents. Remember that when we have a negative exponent, it means we flip the base to the other side of the fraction. So, x^-3 becomes 1/x^3, and y^-1 becomes 1/y.
Now let's substitute the values of x and y. We have 13(1/(-1)^3)(1/4).
Simplifying the expression inside the parentheses, we get 13(1/-1)(1/4), which is -13/4.
Multiplying it all together, we have -13/4, which simplifies to -3.25.
But hey, your answer choices aren't in decimal form, so let's convert it. -3.25 can be written as -13/4, which is option A!
I hope that helped, and remember, even when you're doing math, it's important to find the fun in it!
To find the value of 13x^(-3)y^(-1) when x = -1 and y = 4, we can substitute these values into the expression and simplify.
Step 1: Substitute the values of x and y into the expression:
13(-1)^(-3)(4)^(-1)
Step 2: Simplify the expression, remembering that a negative exponent means taking the reciprocal:
13(1/(-1)^3)(1/4)
Step 3: Simplify further:
13(1/(-1))(1/4)
Step 4: Perform the calculations:
13(-1)(1/4) = -13/4 = -3 1/4
Therefore, the value of 13x^(-3)y^(-1) when x = -1 and y = 4 is -3 1/4, which is not one of the given answer choices. Please double-check the expression and answer choices provided in your question before making a final choice.
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13x^-3y^-1
= 13(1/x^3)(1/y)
might be easier to sub your values of x and y into that