All categories

3 years ago

What the freak is this 4^(x)-2^(x+1)=48

Mathematics

2 answers:

Dmitry_Shevchenko [17]3 years ago

7 0

Answer:

4^x - 2^(x+1) = 48

x=3

Step-by-step explanation:

kolbaska11 [484]3 years ago

3 0

Answer:

4^x+2^2x=47

Step-by-step explanation:

4^x+2^2x+1=48

We move all terms to the left:

4^x+2^2x+1-(48)=0

We add all the numbers together, and all the variables

4^x+2^2x-47=0

We move all terms containing x to the left, all other terms to the right

4^x+2^2x=47

You might be interested in

Helppppppppppppppppppppppppp

KiRa [710]

<h2>Answer:</h2><h2>52.7856 cm</h2>

Solution,

diameter=16.8 cm

radius=8.4 cm

Circumference of circle=2 pi r

 = 2*3.142*8.4

 =52.7856 cm

Hope it helps

Good luck on your assignment

5 0

3 years ago

A paint company claims their paint will be completely dry within 45 minutes after application. Recently, customers have complain

Angelina_Jolie [31]

Answer:

The probability of observing a sample mean of x = 52 or greater from a sample size of 25 is 0.0000026

Step-by-step explanation:

Mean = $\mu = 45$

Population standard deviation = $\sigma = 6$

Sample size = n =25

Sample mean = $\bar{x} = 52$

We are supposed to find the probability of observing a sample mean of x = 52 or greater from a sample size of 25 i.e. $P(x\geq 52)$

$Z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}\\Z=\frac{52-45}{\frac{6}{\sqrt{25}}}$

Z=5.83

P(Z<52)=0.9999974

$P(Z\geq 52)=1-P(z$

Hence the probability of observing a sample mean of x = 52 or greater from a sample size of 25 is 0.0000026

3 0

3 years ago

A circle in the XY-plane has center (5, 7) and radius 2. Which of the following is an equation of the circle?

MAXImum [283]

Answer: A, because the equation of a circle is $(x-h)^2+(y-k)^2=r^2$ . So, if the point of the center is $(5,7)$ and the radius $2$ , then on the equation should be changed as negative and the radius should be multiplied as $4$ , which is $(x-5)^2+(y-7)^2=4$