Answer:
f(a) = 1,5
Step-by-step explanation:
-3a + 6b = a + 4b
[+3a] [+3a]
6b = 3a + 4b
[-4b] [-4b]
2b = 3a
[÷2] [÷2]
b = 1,5a
Answer:
-55.1
Step-by-step explanation:
2x + 553x - 10
-2x -2x
551x - 10
/551 /551
x = -55.1
Answer:
(1,4)
Step-by-step explanation:
Remember that an exponent means repeated multiplication.
The exponent of 4 means you have four
's mutiplied together:
![\big(b^2\big)\cdot\big(b^2\big)\cdot\big(b^2\big)\cdot\big(b^2\big)](https://tex.z-dn.net/?f=%5Cbig%28b%5E2%5Cbig%29%5Ccdot%5Cbig%28b%5E2%5Cbig%29%5Ccdot%5Cbig%28b%5E2%5Cbig%29%5Ccdot%5Cbig%28b%5E2%5Cbig%29)
And then each exponent of 2 inside means you have two
's multiplied inside each set of parentheses.:
![\big(b\cdot b\big)\cdot\big(b\cdot b\big)\cdot\big(b\cdot b\big)\cdot\big(b\cdot b\big)](https://tex.z-dn.net/?f=%5Cbig%28b%5Ccdot%20b%5Cbig%29%5Ccdot%5Cbig%28b%5Ccdot%20b%5Cbig%29%5Ccdot%5Cbig%28b%5Ccdot%20b%5Cbig%29%5Ccdot%5Cbig%28b%5Ccdot%20b%5Cbig%29)
There are 8 b's there when you expand this out.