You would have to do this (1.25X3)+(0.45X2)=x then x=4.65, because 3X1.25=3.75 and 2X0.45=90 and 3.75+90=4.65
Answer:
5 + x
Step-by-step explanation:
x more than 5 is 5 + x
Answer:
7
Step-by-step explanation:
Let’s think about this like a number line.
If we have a number line with the ends of F and H, and G is somewhere in between, it would look something like this.
F———-G———H
We know that FH = 19 and that FG is 12.
This means that GH will be the FH - FG

So FG is 7.
Hope this helped!
Answer:
Step-by-step explanation:
(cos A+ cos B)-cos C
![=2cos \frac{A+B}{2}cos \frac{A-B}{2}-cos C~~~...(1)\\A+B+C=180\\A+B=180-C\\\frac{A+B}{2}=90-\frac{C}{2}\\cos \frac{A+B}{2}=cos(90-\frac{C}{2})=sin \frac{C}{2}\\cos C=1-2sin^2\frac{C}{2}\\(1)=2 sin \frac{C}{2} cos \frac{A-B}{2}-1+2sin^2\frac{C}2}\\=2sin\frac{C}{2}[cos \frac{A-B}{2}+sin \frac{C}{2}]-1~~~...(2)\\\\now~again~A+B+C=180\\C=180-(A+B)\\sin\frac{C}{2}=sin(90-\frac{A+B}{2})=cos \frac{A+B}{2}\\(2)=2sin\frac {C}{2}[cos \frac{A-B}{2}+cos \frac{A+B}{2}]-1\\](https://tex.z-dn.net/?f=%3D2cos%20%5Cfrac%7BA%2BB%7D%7B2%7Dcos%20%5Cfrac%7BA-B%7D%7B2%7D-cos%20C~~~...%281%29%5C%5CA%2BB%2BC%3D180%5C%5CA%2BB%3D180-C%5C%5C%5Cfrac%7BA%2BB%7D%7B2%7D%3D90-%5Cfrac%7BC%7D%7B2%7D%5C%5Ccos%20%5Cfrac%7BA%2BB%7D%7B2%7D%3Dcos%2890-%5Cfrac%7BC%7D%7B2%7D%29%3Dsin%20%5Cfrac%7BC%7D%7B2%7D%5C%5Ccos%20C%3D1-2sin%5E2%5Cfrac%7BC%7D%7B2%7D%5C%5C%281%29%3D2%20sin%20%5Cfrac%7BC%7D%7B2%7D%20cos%20%5Cfrac%7BA-B%7D%7B2%7D-1%2B2sin%5E2%5Cfrac%7BC%7D2%7D%5C%5C%3D2sin%5Cfrac%7BC%7D%7B2%7D%5Bcos%20%5Cfrac%7BA-B%7D%7B2%7D%2Bsin%20%5Cfrac%7BC%7D%7B2%7D%5D-1~~~...%282%29%5C%5C%5C%5Cnow~again~A%2BB%2BC%3D180%5C%5CC%3D180-%28A%2BB%29%5C%5Csin%5Cfrac%7BC%7D%7B2%7D%3Dsin%2890-%5Cfrac%7BA%2BB%7D%7B2%7D%29%3Dcos%20%5Cfrac%7BA%2BB%7D%7B2%7D%5C%5C%282%29%3D2sin%5Cfrac%20%7BC%7D%7B2%7D%5Bcos%20%5Cfrac%7BA-B%7D%7B2%7D%2Bcos%20%5Cfrac%7BA%2BB%7D%7B2%7D%5D-1%5C%5C)

Answer:
c,d
Step-by-step explanation: