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lesya [120]
3 years ago
10

If f(x) = 2(x)^2+5 sqrt (x-2). complete the following statement. f(2)=_____

Mathematics
2 answers:
nataly862011 [7]3 years ago
8 0

Answer: 82

Step-by-step explanation:

apex

dangina [55]3 years ago
4 0

Answer:

The value of function at x = 2 is 8.

Step-by-step explanation:

Given : Function f(x)=2x^2+5\sqrt{x-2}

We have to find the value of given function at x = 2 , that is f(2)

Consider the given function  f(x)=2x^2+5\sqrt{x-2}

To find the value f(2) put x = 2 in given function ,

We have,

f(2)=2(2)^2+5\sqrt{2-2}

Simplify, we have,

f(2)=8+5\sqrt{0}

Simplify further, we have,

f(2)=8

Thus, the value of function at x = 2 is 8.

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1. consider a lottery with three possible outcomes: $125 will be received with probability 0.25, $100 will be received with prob
tigry1 [53]

The lottery's anticipated worth is $80.

Given that,

The probability of receiving $125 is 0.25; the likelihood of receiving $100 is 0.3; and the likelihood of receiving $50 is 0.45.

A) EV=125*.2+100*.3+50*.5=$80

The lottery's anticipated worth is $80.

The expected value is obtained by multiplying each result by its likelihood.

The expected value of the lottery is then calculated by adding up all of these.

This is what we have: ;;

125(0.2) + 100(0.3) + 50(0.5) (0.5)

= 25 + 30 + 25 = $80

B) This is the formula for variance is shown in figure :

So, we can calculate the variance as follows:

.2*(125-80)^2+.3*(100-80)^2+.5*(50-80)^2=975

C) A risk-neutral person would pay $80 or less to play the lottery.

To learn more about probability click here:

brainly.com/question/14210034

#SPJ4

4 0
1 year ago
Read 2 more answers
Over the course of 4 days the price of stock at a corporation fell $28. What was the average change in stock price per day?
bezimeni [28]
7 is the average stock change
5 0
3 years ago
The question is in the image below.
sineoko [7]

Answer:

The Recursive Formula for the sequence is:

\:a_n=\frac{1}{5}\left(a_{n-1}\right)     ; a₁ = 125

Hence, option D is correct.

Step-by-step explanation:

We know that a geometric sequence has a constant ratio 'r'.

The formula for the nth term of the geometric sequence is

a_n=a_1\cdot r^{n-1}

where

aₙ is the nth term of the sequence

a₁ is the first term of the sequence

r is the common ratio

We are given the explicit formula for the geometric sequence such as:

a_n=125\left(\frac{1}{5}\right)^{n-1}

comparing with the nth term of the sequence, we get

a₁ = 125

r = 1/5

Recursive Formula:

We already know that

  • a₁ = 125
  • r = 1/5

We know that each successive term in the geometric sequence is 'r' times the previous term where 'r' is the common ratio.

i.e.

a_n=ra_{n-1}

Thus, substituting r = 1/5

\:a_n=\frac{1}{5}\left(a_{n-1}\right)  

and a₁ = 125.

Therefore, the Recursive Formula for the sequence is:

\:a_n=\frac{1}{5}\left(a_{n-1}\right)     ; a₁ = 125

Hence, option D is correct.

3 0
3 years ago
Complete the equation of the line through (2, -2) and (4,1)
Ann [662]

Answer:

y = 3/2x - 5

Step-by-step explanation:

To find the equation of the line

Step 1: find slope

( 2 , -2) ( 4 , 1)

x_1 = 2

y_1 = -2

x_2 = 4

y_2 = 1

Insert the values into

m = (y_2 - y_1) / (x_2 - x_1)

m = ( 1 - (-2) / (4 - 2)

= ( 1 + 2) / ( 4 -2 )

= 3 / 2

m = 3/2

Step 2: substitute m into the equation

y = mx + c

y = 3/2x + c

Step 3: substitute any of the two points into the equation

Let's pick (4 , 1)

x = 4

y = 1

y = 3/2x + c

1 = 3/2(4) + c

1 = 3*4/2 + c

1 = 12/2 + c

1 = 6 + c

1 - 6 = c

c = 1 - 6

c = -5

Step 4 : substitute c into the equation

y = 3/2x + c

y = 3/2x - 5

The equation of the line is

y = 3/2x - 5

3 0
3 years ago
Can someone please help me and explain to me how to do this geometry problem please? thank you!! ❤
Dennis_Churaev [7]
Measures of angles 2, 3, 4, added equal 180

3 0
3 years ago
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