Answer:
4
Step-by-step explanation:
2×4 is the only one that equals less than 9, 2× 4.5 is 9, 2×5.5 is 11, 2×6 is 12, and the question is trying to get below 9, so 4 is the only answer that can get below 9
Answer:7x-29
Step-by-step explanation: simplify and open the brackets.remember that a letter and a number cannot be sumed up but can my multipled together
67.50 + 12.50 = 80
80/100 = 0,8 x 3 = 2.4
so, the total bill was 80 + 2.4 = 82.4
<em>hope it helps :)</em>
Answer:
22
Step-by-step explanation:
So we have the two functions:
![f(n)=3n-5\text{ and } g(n)=2n-1](https://tex.z-dn.net/?f=f%28n%29%3D3n-5%5Ctext%7B%20and%20%7D%20g%28n%29%3D2n-1)
And we want to find (fog)(5). This is the same as:
![(f\circ g)(5)=f(g(5))](https://tex.z-dn.net/?f=%28f%5Ccirc%20g%29%285%29%3Df%28g%285%29%29)
So, find g(5) first:
![g(5)=2(5)-1\\](https://tex.z-dn.net/?f=g%285%29%3D2%285%29-1%5C%5C)
Multiply and subtract:
![g(5)=10-1=9](https://tex.z-dn.net/?f=g%285%29%3D10-1%3D9)
So, we can substitute:
![f(g(5))=f(9)](https://tex.z-dn.net/?f=f%28g%285%29%29%3Df%289%29)
Find the value:
![f(9)=3(9)-5](https://tex.z-dn.net/?f=f%289%29%3D3%289%29-5)
Multiply and subtract:
![f(9)=27-5=22](https://tex.z-dn.net/?f=f%289%29%3D27-5%3D22)
So:
![(f\circ g)(5)=22](https://tex.z-dn.net/?f=%28f%5Ccirc%20g%29%285%29%3D22)
And we're done!
Step-by-step explanation:
![\sqrt{65}](https://tex.z-dn.net/?f=%20%5Csqrt%7B65%7D%20)
As it can't be expressed in the form p/q, where q is not equal to 0,
<em><u>Hence</u></em><em><u>,</u></em>
<em><u>square</u></em><em><u> </u></em><em><u>root</u></em><em><u> </u></em><em><u>65</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>an</u></em><em><u> </u></em><em><u>irrational</u></em><em><u> </u></em>