Answer:
B
Step-by-step explanation:
total 180
180-84=96
96/2/4=48/4=12
25cm.
This is because 18-17=1 and then take away 75 from the 1m and then youre left with 25cm.
Answer:
3.06
Step-by-step explanation:
![\log_{5}(\dfrac{2}{3}x-2)+2=0\\\\\log_{5}(\dfrac{2}{3}x-2)=-2\\\\](https://tex.z-dn.net/?f=%5Clog_%7B5%7D%28%5Cdfrac%7B2%7D%7B3%7Dx-2%29%2B2%3D0%5C%5C%5C%5C%5Clog_%7B5%7D%28%5Cdfrac%7B2%7D%7B3%7Dx-2%29%3D-2%5C%5C%5C%5C)
This means that 5 to the power of -2 is
, meaning that:
![\dfrac{2}{3}x-2=5^{-2}=\dfrac{1}{25} \\\\\dfrac{2}{3}x=\dfrac{51}{25} \\\\2x=\dfrac{153}{25} \\\\x=\dfrac{153}{50}=3.06](https://tex.z-dn.net/?f=%5Cdfrac%7B2%7D%7B3%7Dx-2%3D5%5E%7B-2%7D%3D%5Cdfrac%7B1%7D%7B25%7D%20%5C%5C%5C%5C%5Cdfrac%7B2%7D%7B3%7Dx%3D%5Cdfrac%7B51%7D%7B25%7D%20%5C%5C%5C%5C2x%3D%5Cdfrac%7B153%7D%7B25%7D%20%5C%5C%5C%5Cx%3D%5Cdfrac%7B153%7D%7B50%7D%3D3.06)
Hope this helps!
True but you did not attach the picture
2.
![\frac{4^3-2^2}{ \sqrt{81} - \sqrt{16}}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%5E3-2%5E2%7D%7B%20%5Csqrt%7B81%7D%20-%20%5Csqrt%7B16%7D%7D%20)
=
![\frac{64-4}{9-4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B64-4%7D%7B9-4%7D%20)
=
![\frac{60}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B60%7D%7B5%7D%20)
= 12
'B. 12' is the answer to question 2.
3. The answer to this question is 'B. No, because -1(-1) = 1'