44.4 miles per hour. You just divide 300 and 6.75 (Think as the 3/4 as quarters each 1 is .25) then you will get 44.4. To check your answer you would multiply 44.4 and 6.75 and get 299.7. This is not 300 but when you round that .7 to the nearest 10 you will get 300. Hope this helped.<span />
25 = 5*5 and 9 = 3*3, which we can exploit to write
![25^x-9^y=(5^2)^x-(3^2)^y=5^{2x}-3^{2y}=(5^x)^2-(3^y)^2](https://tex.z-dn.net/?f=25%5Ex-9%5Ey%3D%285%5E2%29%5Ex-%283%5E2%29%5Ey%3D5%5E%7B2x%7D-3%5E%7B2y%7D%3D%285%5Ex%29%5E2-%283%5Ey%29%5E2)
so that this expression is actually a difference of squares. We can factorize this to get
![(5^x-3^y)(5^x+3^y)=18](https://tex.z-dn.net/?f=%285%5Ex-3%5Ey%29%285%5Ex%2B3%5Ey%29%3D18)
and given that
, we divide both sides by this to get
![5^x+3^y=\dfrac{18}3=\boxed{6}](https://tex.z-dn.net/?f=5%5Ex%2B3%5Ey%3D%5Cdfrac%7B18%7D3%3D%5Cboxed%7B6%7D)
Answer: 9.6 km
Rounding of to nearest tens- 10KM
Answer:
Step-by-step explanation:
Find the parabola through (
−
8
,
6
) with vertex (
−
6
,
-5
)
.
Standard Form: y
=
−
11
/4x
²−
44
x
−
170
Vertex Form: y
=
−
11
/4
(
x
+
8
)
2
+
6
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark">
docx
</span>
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark">
docx
</span>