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serg [7]
3 years ago
8

Help!! The table shows how many males and females

Mathematics
2 answers:
strojnjashka [21]3 years ago
4 0

Answer:

frequency of females watching action movie is 99

total participants 479

joint relative frequency of females and action movie = 99/479

your answer is D: divide 99 by 479

Step-by-step explanation:

Brut [27]3 years ago
4 0

Answer:

option d is right.

Step-by-step explanation:

Given is a table showing the list of males and females who attended two different movies.

Relative frequency of attending an action movie and being a female is required

First let us find joint frequency

This is represented by 2nd row I column i.e. 99

Relative frequency is obtained by dividing 99 by total of 479

Hence option d is right.

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You want to put $8,000 in a simple interest account. It has a 2% annual interest rate. How long must you invest that money to ea
Nutka1998 [239]

Answer:

2.5 years

Step-by-step explanation:

Interest= P×R×T÷100

T= 100I÷P×R

T= 100×400÷8000×2

T= 40000÷16000

T= 5÷2

T= 2.5 years

5 0
3 years ago
What is (5x-2)(4x^2 -3x-2)
Ronch [10]
Answer: 20x^3 - 23x^2 - 4x + 4

Explanation:

Use distributive property:

(5x-2)(4x^2 - 3x-2)
= 20x^3 - 15x^2 - 10x - 8x^2 + 6x + 4
= 20x^3 - 23x^2 - 4x + 4
8 0
3 years ago
Read 2 more answers
PLS HELP THIS IS HARD ANYONE PLS
drek231 [11]
I think it’s B (0, 0) (5, -3), (4, 1).
8 0
3 years ago
A meteorologist is studying the speed at which thunderstorms travel. A sample of 10 storms are observed. The mean of the sample
dezoksy [38]

Answer:

The 95% confidence interval for the true mean speed of thunderstorms is [10.712, 13.688].

Step-by-step explanation:

Given information:

Sample size = 10

Sample mean = 12.2 mph

Standard deviation = 2.4

Confidence interval = 95%

At confidence interval 95% then z-score is 1.96.

The 95% confidence interval for the true mean speed of thunderstorms is

CI=\overline{x}\pm z*\frac{s}{\sqrt{n}}

Where, \overline{x} is sample mean, z* is z score at 95% confidence interval, s is standard deviation of sample and n is sample size.

CI=12.2\pm 1.96\frac{2.4}{\sqrt{10}}

CI=12.2\pm 1.487535

CI=12.2\pm 1.488

CI=[12.2-1.488, 12.2+1.488]

CI=[10.712, 13.688]

Therefore the 95% confidence interval for the true mean speed of thunderstorms is [10.712, 13.688].

4 0
3 years ago
PLEASE ANSWER THIS IT'S 30 POINTS
sergey [27]

Answer:

Step-by-step explanation:

since we know that the 50 degrees is one side of the line then the angle that is strait opposite from this angle is 50 degrees, so 50+60=110degrees and 180-110=70, so x=70 degrees

5 0
2 years ago
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