What’s the answer??? ( ONLY ANSWER IF YOU KNOW)

Mathematics

1 answer:

Elena-2011 [213]4 years ago

4 0

The exponents of expression one are the same as the exponents of expression two

You might be interested in

State wether the product of √3 and √9 is rational or irrational. explain your answer

mrs_skeptik [129]

√9 is rational and √3 irrational number

3 0

3 years ago

Ustin is interested in buying a digital phone. he visited 20 stores at random and recorded the price of the particular phone he

Mekhanik [1.2K]

(a) 2.09302406 (b) Lower limit of 95% confidence interval = 185.85 (a) To get the t-score, first determine the number of degrees of freedom you have. That's simply the number of samples minus 1, so in this case we have 19 degrees of freedom. Then calculate (1-0.95)/2 = 0.05/2 = 0.025 which is the size of the tail for the confidence interval you want. Finally, lookup in a T-Distribution Table for the 19 degrees of freedom and tail size. The value looked up will be 2.09302406. (b) Once you have the t-score, to calculate your desired interval, calculate the following: V = T*SD/sqrt(n) where V = Variance T = T-score SD = Standard deviation n = number of samples So let's plug in the values and calculate V V = T*SD/sqrt(n) V = 2.09302406*21.02/sqrt(20) V = 2.09302406*21.02/4.472135955 V = 43.99536574/4.472135955 V = 9.837662849 Your 95% confidence interval is now the mean +/- V. So lower limit = 195.69 - 9.84 = 185.85 upper limit = 195.69 + 9.84 = 205.53

5 0

3 years ago

Earth rotates on an axis through its poles. The distance from the axis to a location on Earth at 40 degrees north latitude is ab

murzikaleks [220]

Answer: v = 793.77 mph

Step-by-step explanation: Linear speed of a circular movement is calculated by using the formula:

v = ω.r

where

ω is angular velocity

r is radius of the path

Angular velocity is the rate of change of the angular position of an object with respect of time, i.e., is how fast an object changes its angular position with time:

$\omega = \frac{d \theta}{dt}$