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Tema [17]
3 years ago
15

What is the oposite of 42

Mathematics
2 answers:
o-na [289]3 years ago
6 0

Step-by-step explanation:

i think its 24

sorry, if its wrong

Dmitry [639]3 years ago
3 0

42 is an integer, for me i can assume you asking about the additive opposite.

so, the answer is -42

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The information below is the number of daily emergency service calls made by the volunteer ambulance service of Walterboro, Sout
mafiozo [28]

Answer:

Step-by-step explanation:

Hello!

The variable of interest is

X: The number of emergency service calls made by the volunteer ambulance service of Walterboro, South Carolina for 50 days.

a)

In the first column, you have the possible number of emergency calls made, in the second column, you have the observed absolute frequency (fi) for each value of the variable.

To establish the probability distribution you have to calculate the relative frequency (hi) for each value of X.

The formula for the relative frequency is

hi= fi*n where i= 0, 1, 2, 3, 4

X₁= 0

f₁= 8

h₁= 8/50= 0.16

X₂= 1

f₂= 10

h₂= 0.20

X₃= 2

f₃= 22

h₃= 22/50= 0.44

X₄= 3

f₄= 9

h₄= 9/50= 0.18

X₅= 4

f₅= 1

h₅= 1/50= 0.02

(See attachment)

b)

The variable of interest is a cuantitative discrete variable, so this is an example of a driscrete distribution.

Discrete variables are numerical and take certain numbers within its range of definition, contrary to the continuous variables that can take any value within the range of definition of the variable.

Another example of a discrete variable is "the money", If the variable is "I have at most 10 dollars in my wallet", the range of definition goes from 0 dollars to 10 dollars.

c) To calculate the mean when the data is arranged in a frequency table you have to use the following formula:

X[bar]= ∑Xihi= (0*0.16)+(1*0.2)+(2*0.44)+(3*0.18)+(4*0.02)= 1.7

This means that they expect an average of 1.7 calls per day.

d) The formula for the standard deviation is:

S=\sqrt{\frac{1}{n-1}[sumX^2fi-\frac{(sumXfi)^2}{n} ] }

∑X²fi= (0²*8)+(1²*10)+(2²*22)+(3²*9)+(4²*1)=  195

∑Xfi= (0*8)+(1*10)+(2*22)+(3*9)+(4*1)= 85

S=\sqrt{\frac{1}{49}[195-\frac{(85)^2}{50} ] }= 1.015

I hope this helps!

3 0
2 years ago
A line passes through the point (6, -2) and has a slope of 4/3 Write an equation in point-slope form for this line.​
kumpel [21]

Answer:

y = 4/3x - 10

Step-by-step explanation:

Slope: 4/3

y-intercept: -2 - (4/3)(6) = -2 - 8 = -10

5 0
2 years ago
Can somebody help me?
lubasha [3.4K]

Answer:

13, 13√3, 26

Step-by-step explanation:

30 60 90 right triangle

Ratio of short leg : long leg : hypo = a : a√3 : 2a

Given short leg = 13, so long leg = 13√3 and hypo = 13 * 2 = 26

Answer:

13, 13√3, 26

8 0
3 years ago
You have 68 feet of fencing to enclose a rectangular plot that borders on a river. If you DO NOT fence the side
Vladimir79 [104]

Answer:

168 = L + 2W

And you want to maximize LW.

Which means you want to maximize W (168 - 2W), or 168W - 2W^2.

To maximize that, the derivative must go to zero.

0 = 168 - 4W, or W = 42. And L = 84. Done. :-)

Step-by-step explanation:

3 0
2 years ago
For which equation is x=35 a solution​
SIZIF [17.4K]

Answer:

C- 105/35=3

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
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