Answer:
About 68% will make between $200000 and $240000.
Step-by-step explanation:
C. About 68% will make between $200000 and $240000. If the standard deviation is $18,000, then add that to $225000. That equals $243000. Subtract $18000 from the average, you end up with $207000. So it is close, but about 68% will make between $200000 and $240000.
Try this suggested option:
Step-by-step explanation:
f(x)=2(2x²+4x)+3; ⇔
f(x)=4(x²+2x)+3; ⇔
f(x)=4(x²+2x+1)+3-4; ⇔
f(x)=4(x+1)²-1; ⇔
f(x)=(2x+1)(2x+3).
Then the roots are:
![\left[\begin{array}{ccc}x=-1.5\\x=-0.5\end{array}.](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx%3D-1.5%5C%5Cx%3D-0.5%5Cend%7Barray%7D.)
Answer:
picture?
Step-by-step explanation:
3. B. 90 degrees clockwise rotation around point C
4. C reflection over CF
Answer:
I think its opinion 3 or all the above am not sure