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3 years ago

Pls solve this besties 5^-2

Mathematics

2 answers:

geniusboy [140]3 years ago

8 0

Answer:

0.04

Step-by-step explanation:

Anna71 [15]3 years ago

6 0

Answer: 1/25

Step-by-step explanation: when you go to a negative exponent you get a fraction and .04 is the same as 1/25 by the ways.

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Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the mean, median, mode, and midra

Svetlanka [38]

Answer:

a. 20.23

b. 14.1

c. 8.3, 9.2, 9.8, 12.1, 13.5, 14.7, 26.5, 34.7, 36.5, 37

d. 22.65

Step-by-step explanation:

Sum = 202.3

Count = 10

Mean = 202.3 / 10

Mean = 20.23

Since there is an even number of data values the median is the mean of the two data values in the middle, calculated as follows;

8.3, 9.2, 9.8, 12.1, 13.5, 14.7, 26.5, 34.7, 36.5, 37

Median = (13.5 + 14.7) / 2

Median = 14.1

Mode is the value or values in the data set that occur most frequently. Since all are occurred once so all the values will be considered as Mode;

Mode = 8.3, 9.2, 9.8, 12.1, 13.5, 14.7, 26.5, 34.7, 36.5, 37

Midrange = (Highest Value + Lowest Value) / 2

Midrange = (37 + 8.3) / 2

Midrange = 22.65

7 0

4 years ago

Please help me !! due today:(

raketka [301]

Answer:

$\huge\boxed{\sf x = 65 \textdegree}$

Step-by-step explanation:

Using trigonometric ratio cos.

Here,

Theta = θ = x
Adjacent = 12
Hypotenuse = 28

<h3><u>Finding x:</u></h3>

$\displaystyle cos \theta =\frac{adjacent}{hypotenuse} \\\\cos \ x =\frac{12}{28} \\\\cos \ x = 0.43\\\\x = cos^{-1} 0.43\\\\x = 65 \textdegree\\\\\rule[225]{225}{2}$

7 0

2 years ago

Really stuck on this question

Ainat [17]

Base * width * height

4 0

3 years ago

A radio station claims that the amount of advertising per hour of broadcast time has an average of 13 minutes and a standard dev

zimovet [89]

Answer:

$Z = 3.33$

Step-by-step explanation:

Z-score:

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question:

$\mu = 13, \sigma = 1.2$

You listen to the radio station for 1 hour, at a randomly selected time, and carefully observe that the amount of advertising time is equal to 17 minutes. Calculate the z-score for this amount of advertising time.

We have to find Z when X = 17. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{17 - 13}{1.2}$

$Z = 3.33$

5 0

3 years ago

You purchase a $220 airline ticket. You have a discount code to receive 10% off. How much will your ticket cost you?

lutik1710 [3]

Answer:

$198

Step-by-step explanation:

Take 220 then multiply it by .10 (10%)=22

Then subtract that from 220

220*.10=22

220-22=198

7 0

3 years ago