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julsineya [31]
4 years ago
8

Help me with this math problem please

Mathematics
1 answer:
Afina-wow [57]4 years ago
3 0

Answer:

The relative frequency of event "spin a 3" is calculated by:

F = number of elements/total number of elements

  = 24/50 = 0.48

Hope this helps!

:)

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Differentiate : <br> siny + 3 = y + cosx
Ivan
Cosy = y\frac{dy}{dx} - sinx

\frac{cosy+sinx}{y} =  \frac{dy}{dx}
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3 years ago
A fitness instructor measured the heart rates of the participants in a yoga class at the conclusion of the class. The data is su
fomenos

Answer and Explanation:

Please find full question attached

From the bar chart, we can see that the the interval 130-150 has two bars in it:

Interval 130-140 with the highest frequency of 5

Interval 140-150 with frequency of 2

Therefore to find the percentage between 130-150 we add up the frequencies 2+5=7 and divide by the total frequency of 15 people all multiplied by 100

=7/15×100= 46.67%

Percentage of participants with heart rate between 130 and 150 =46.67%

5 0
3 years ago
If 5 men dig a hole in 5 hours, how long will it take 2 men to dig half a hole?
kirill115 [55]

Answer:

Step-by-step explanation:

5 men do 1 unit of work in 1 hr. 1 man does 1/5 unit of work in 1 hr. 2 men do 2/5 units of work in 1 hr. Therefore 2 men will take 5/2 hours to dig 1 hole and take 5/4 hrs to dig half a hole.

5 0
3 years ago
Read 2 more answers
Given below are the rating and performance scores of 15 laptop computers. Performance Score 115 191 153 194 236 184 184 216 185
My name is Ann [436]

Answer:

moderate positive relationship

Step-by-step explanation:

From the data:

The linear relationship between score and rating can be obtained by calculating the Pearson correlation Coefficient between the two variables. This can be obtained more easily by using technology, a linear correlation Coefficient calculator. The result of the correlation Coefficient for the data above is about 0.66. This value is positive which shows that the association between the variables is positive, increase in one leads to increase in the other and vice versa. Also the value shows that the relationship is fairly strong.

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3 years ago
How much money has to be invested at 2.9% interest compounded continuosly to have 34,000 after 18 years
navik [9.2K]

Answer:

\$20,173.31  

Step-by-step explanation:

we know that

The formula to calculate continuously compounded interest is equal to

A=P(e)^{rt}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest in decimal  

t is Number of Time Periods  

e is the mathematical constant number

we have  

t=18\ years\\ A=\$34,000\\ r=0.029  

substitute in the formula above  

34,000=P(e)^{0.029*18}  

P=34,000/((e)^{0.029*18})=\$20,173.31  

7 0
4 years ago
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