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4 years ago

Which statement is true?

Mathematics

2 answers:

hoa [83]4 years ago

6 0

Answer:

a) Point estimates are used to make inferences about population parameters.

Explanation:

Point estimation is defined as an approximate and single numeric value representing a population. This is given as an estimate of a parameter of certain population. So, population parameter helps in determining a population by randomly selecting a part of people from that population through some survey.

anyanavicka [17]4 years ago

5 0

A!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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At Joyce's school, tickets for a concert were sold at the rate of 40 per half hour. How many tickets were sold in 7 hours

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170 tickets were sold

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An initial population of 415

slamgirl [31]

Answer:

The exponential function to model the duck population is:

f(n)=415*(1.32)^n, where:

x is the duck population

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Step-by-step explanation:

In order to calculate the duck population you can use the formula to calculate future value:

FV=PV*(1+r)^n

FV=future value

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r=rate

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In this case, the present value is the initial population of 415 and the rate is 32%. You can replace these values on the formula and the exponential function to model the duck population would be:

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3 years ago

What is the gcf of 96 and 40

Naddika [18.5K]

Answer:

Step-by-step explanation:

40 factors: 1 2 4 5 8 10 20

96 factors 1 2 3 4 6 8 12 16 24 32 48

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3 years ago

Which of the following is the equation of the line that is parallel to y=35x+8 y = 3 5 x + 8 and goes through point (-10,4)?

xeze [42]

Slope-intercept form of a line is y=mx+b.

Where m= slope and b= y-intercept.

First step is to compare the given equation y=35x+8 with the above equation to get the value of m.

After comparing the two equations we will get m=35.

Slope of paralle lines always equal which means slope of a line which is parallel to the above line will also be 35.

Now the line is passing through (-10,4).

Point slope form of a line is :

$y-y_{1} =m(x-x_{1} )$

Next step is to plug in m=35, x1=-10 and y1=4 in the above equation. So,

y-4=35(x-(-10)

y-4=35(x+10)

y-4=35x+350

y=35x+350+4

y=35x+354.

So, the equation of the line is y=35x+354.

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