The answer is d, 65.1. 18.6•3.5=65.1
The first digit could be any of these: 1, 2, 3, 4, 5, 6, 7, 8, 9
There are 9 choices, and only one is 1, so, the probability is 1/9
The second digit could be these(because the number is even): 2, 4, 6, 8
There are 4 choices, and only one is 8, so the probability is 1/4
Multiply the fractions:
1/9*1/4=1/36
The probability of his house number being 18 is 1/36
Good luck!
Answer:
We conclude that the expression of the price p of a coat reduced by a 5% discount will be: 0.95 p
Step-by-step explanation:
Let 'p' be the original price
Discount = 5% = 0.05
The discount amount can be calculated by multiplying the original price by 5% or 0.05
Discount Amount = 5% × p
= 0.05 × p
= 0.05 p
Given that the price p of a coat reduced by a 5% discount.
Thus, the price after 5% discount can be calculated by subtracting the discount amount i.e. 0.05 p from the original price p.
Thus,
The expression of the price p after 5% discount = p - 0.05 p
= 0.95 p
Therefore, we conclude that the expression of the price p of a coat reduced by a 5% discount will be: 0.95 p
![b\in(0,\ 1)\ \cup\ (1,\ \infty)\\x > 0\\y\in\mathbb{R}\\--------------------------\\\\y=\log_bx\\\\For\ (1,\ 0)\to x=1,\ y=0.\ Substitute:\\\\\log_b1=0\to b^0=1\to b\in(0,\ 1)\ \cup\ (1,\ \infty)\\\\For\ (116,\ 2)\to x=116,\ y=2.\ Substitute:\\\\\log_b116=2\to b^2=116\to b=\sqrt{116}\\\to b=\sqrt{4\cdot29}\to b=\sqrt4\cdot\sqrt{29}\to b=2\sqrt{29}\\\\For\ (4,\ -1)\to x=4,\ y=-1.\ Substitute:\\\\\log_b4=-1\to b^{-1}=4\to b=\dfrac{1}{4}](https://tex.z-dn.net/?f=b%5Cin%280%2C%5C%201%29%5C%20%5Ccup%5C%20%281%2C%5C%20%5Cinfty%29%5C%5Cx%20%3E%200%5C%5Cy%5Cin%5Cmathbb%7BR%7D%5C%5C--------------------------%5C%5C%5C%5Cy%3D%5Clog_bx%5C%5C%5C%5CFor%5C%20%281%2C%5C%200%29%5Cto%20x%3D1%2C%5C%20y%3D0.%5C%20Substitute%3A%5C%5C%5C%5C%5Clog_b1%3D0%5Cto%20b%5E0%3D1%5Cto%20b%5Cin%280%2C%5C%201%29%5C%20%5Ccup%5C%20%281%2C%5C%20%5Cinfty%29%5C%5C%5C%5CFor%5C%20%28116%2C%5C%202%29%5Cto%20x%3D116%2C%5C%20y%3D2.%5C%20Substitute%3A%5C%5C%5C%5C%5Clog_b116%3D2%5Cto%20b%5E2%3D116%5Cto%20b%3D%5Csqrt%7B116%7D%5C%5C%5Cto%20b%3D%5Csqrt%7B4%5Ccdot29%7D%5Cto%20b%3D%5Csqrt4%5Ccdot%5Csqrt%7B29%7D%5Cto%20b%3D2%5Csqrt%7B29%7D%5C%5C%5C%5CFor%5C%20%284%2C%5C%20-1%29%5Cto%20x%3D4%2C%5C%20y%3D-1.%5C%20Substitute%3A%5C%5C%5C%5C%5Clog_b4%3D-1%5Cto%20b%5E%7B-1%7D%3D4%5Cto%20b%3D%5Cdfrac%7B1%7D%7B4%7D)
Different values of b.
<h3>Answer: There is no logarithmic function whose graph goes through given points.</h3><h3 />
Maybe the second point is ![\left(\dfrac{1}{16},\ 2\right)](https://tex.z-dn.net/?f=%5Cleft%28%5Cdfrac%7B1%7D%7B16%7D%2C%5C%202%5Cright%29)
Substitute:
![\log_b\dfrac{1}{16}=2\to b^2=\dfrac{1}{16}\to b=\sqrt{\dfrac{1}{16}}\to b=\dfrac{1}{4}](https://tex.z-dn.net/?f=%5Clog_b%5Cdfrac%7B1%7D%7B16%7D%3D2%5Cto%20b%5E2%3D%5Cdfrac%7B1%7D%7B16%7D%5Cto%20b%3D%5Csqrt%7B%5Cdfrac%7B1%7D%7B16%7D%7D%5Cto%20b%3D%5Cdfrac%7B1%7D%7B4%7D)
<h3>Then we have the answer:</h3>
![\boxed{y=\log_{\frac{1}{4}}x}](https://tex.z-dn.net/?f=%5Cboxed%7By%3D%5Clog_%7B%5Cfrac%7B1%7D%7B4%7D%7Dx%7D)