F(x)=... the f(x) is like the y in a regular equation.
Answer:
270 times
Step-by-step explanation:
The number of times Indian Ocean is bigger than Colorado = 28,080,000 ÷ 104,000 = 270 times.
Answer:
(4,-4)
Step-by-step explanation:
3*(6x+5y=4)
18x+15y=12
-) 18x – 4y = 88
19y = -76
y=-4
plug back into first equation
6x + 5(-4) = 4
6x = 4+20
x=4
Answer:
x = 2
Step-by-step explanation:
![log_525=x\\\Rightarrow 5^x=25](https://tex.z-dn.net/?f=log_525%3Dx%5C%5C%5CRightarrow%205%5Ex%3D25)
Taking logarithm to base 10 on both sides we get
![log5^x=log25](https://tex.z-dn.net/?f=log5%5Ex%3Dlog25)
From logarithm property
![logy^x=xlogy](https://tex.z-dn.net/?f=logy%5Ex%3Dxlogy)
![\Rightarrow xlog5=log25\\\Rightarrow x=\frac{log25}{log5}\\\Rightarrow x=2](https://tex.z-dn.net/?f=%5CRightarrow%20xlog5%3Dlog25%5C%5C%5CRightarrow%20x%3D%5Cfrac%7Blog25%7D%7Blog5%7D%5C%5C%5CRightarrow%20x%3D2)
![\therefore x=2](https://tex.z-dn.net/?f=%5Ctherefore%20x%3D2)
Also we know that
Hence, x = 2