Which expression is equivalent to the given expression? Please help
1 answer:
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Use ratios.
AC is in the same place as XZ.
Put them over each other. Put two ther sides over each other. In this case, we don't know the side that goes with AB so we're trying to find it.
Cross multiply. (Bottom 14 by the twelve divided by the top 14.)
You get 12. Side XY is 12.
Normally, you'd do the same to find side BC, but it's already obvious the sides equal each other. BC = 10
Add ABC's sides to find the perimeter.
Your answer is 36.
Hope this helps!
:)
AC is in the same place as XZ.
Put them over each other. Put two ther sides over each other. In this case, we don't know the side that goes with AB so we're trying to find it.
Cross multiply. (Bottom 14 by the twelve divided by the top 14.)
You get 12. Side XY is 12.
Normally, you'd do the same to find side BC, but it's already obvious the sides equal each other. BC = 10
Add ABC's sides to find the perimeter.
Your answer is 36.
Hope this helps!
:)
Answer:
See Below.
Step-by-step explanation:
We are given the function:
And we want to show that it has at least one zero between <em>x</em> = 1 and <em>x</em> = 2.
Because the function is a polynomial, it is everywhere continuous.
Evaluate the function at <em>x</em> = 1 and <em>x</em> = 2:
And:
Therefore, because the function changes signs from <em>x</em> = 1 to <em>x</em> = 2 and is continuous on the interval [1, 2], by the intermediate value theorem, there must exist at least one zero in the interval.