Answer:
not sure lol but, like it up
Step-by-step explanation:
Answer:
1/729
Step-by-step explanation:
According to the Order of Operations, the expression will be evaluated like this.
![\left(9^3\cdot9\cdot\dfrac{9^0}{9^4}\cdot9^1\right)^{-3}\\\\=\left(729\cdot9\cdot\dfrac{1}{6561}\cdot9\right)^{-3}\\\\=\left(\dfrac{6561}{6561}\cdot9\right)^{-3}=9^{-3}=\boxed{\dfrac{1}{729}}](https://tex.z-dn.net/?f=%5Cleft%289%5E3%5Ccdot9%5Ccdot%5Cdfrac%7B9%5E0%7D%7B9%5E4%7D%5Ccdot9%5E1%5Cright%29%5E%7B-3%7D%5C%5C%5C%5C%3D%5Cleft%28729%5Ccdot9%5Ccdot%5Cdfrac%7B1%7D%7B6561%7D%5Ccdot9%5Cright%29%5E%7B-3%7D%5C%5C%5C%5C%3D%5Cleft%28%5Cdfrac%7B6561%7D%7B6561%7D%5Ccdot9%5Cright%29%5E%7B-3%7D%3D9%5E%7B-3%7D%3D%5Cboxed%7B%5Cdfrac%7B1%7D%7B729%7D%7D)
__
If you were to combine exponents before doing the evaluation, you would have ...
(9^3·9^1·9^0·9^-4·9^1)^-3 = 9^((3+1+0-4+1)·(-3)) = 9^-3 = 1/729
Note that the 9^1 term in the original expression is <em>not in the denominator</em>. The preceding division is done before the result is multiplied by 9^1, <em>according to the order of operations</em>.
Some authors use the ÷ symbol to mean "everything on the left divided by everything on the right". Some students fail to put needed parentheses around denominators. As a consequence we're not sure precisely what it is we're supposed to evaluate without seeing the original typeset expression.
Answer:8.66?
Step-by-step explanation:
pythagoras theorum finding the shorter side
A=C²-B²
10²-5²
=√10² - 5²
=8.66
Answer:
15
Step-by-step explanation:
Answer:
4 x minus 5 y = negative 5 and 3 x + 10 y = negative 20
Step-by-step explanation:
The equations
4 x - 5 y = 5 (red)
3 x + 10 y = 20 (blue)
4 x - 5 y = -5 (green)
3 x + 10 y = -20 (purple)
are shown in the picture attached. As we can see there, the point (–2.7, –1.2) is on the intersection of the purple and green lines. Therefore is the solution of the system:
4 x - 5 y = -5
3 x + 10 y = -20