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mel-nik [20]
2 years ago
5

A $1 lottery ticket offers a grand prize of $18000; 10 runner-up prizes each pay $1800; 100 third-place prizes each pay $180; an

d 1,000 fourth-place prizes each pay $10. To the nearest penny, find the expected value of entering this contest if 1 million tickets are sold.
Mathematics
1 answer:
andre [41]2 years ago
6 0

Answer:

$64 000 add all thNk you hehehe

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How do I find the arc length with given radius & central angel?
ella [17]

The length of an arc subtended by a central angle is proportional to the circle's circumference. If the given central angle has measure \theta and the circle has radius r, then the arc has length \ell such that

\dfrac{\ell}\theta=\dfrac{2\pi r}{2\pi}=r

where \theta is given in radians. Then

\ell=r\theta

If \theta is given in degrees, then

\dfrac{\ell}\theta=\dfrac{2\pi r}{360}\implies\ell=\dfrac{\theta\pi r}{180}

8 0
3 years ago
8 divide by 1 1/4 KCF
Diano4ka-milaya [45]

Answer:

32/5

Step-by-step explanation:

K=Keep the first Fraction (You can rewrite 8 as 8/1 for when you multiply across.)

C=Change the Division Sign to a Multiplication Sign

F=Flip the Second Fraction

First, rewrite 1 1/4 as 5/4 (A mixed number can be changed to a fraction by multiplying the outside whole number by the denominator or bottom number of the fraction, then add the new rewritten whole number and the original fractional piece. In this case you would multiply the outside 1 by the bottom 4 and add it to the original 1/4. 4/4+1/4=5/4)

Second, Flip 5/4 to 4/5 and change your equation so it now reads: 8/1 x 4/5

Third, use simple fraction multiplication and multiply across to get 8/1 x 4/5=32/5

6 0
3 years ago
Can u answer dis?<br><br> will mark brainliest
Grace [21]
The correct answer is B
325-45=280
8x35=280
3 0
2 years ago
Find the slope of the line.
OleMash [197]

Answer:

-30 is the correct answer

Step-by-step explanation:

As we know,

Slope(m) = y2 - y1 / x2 - x1

After calculating we get the answer -30.

5 0
3 years ago
Find the inverse of the rational function f(x)=2x/x+3
SashulF [63]

Answer:

{f(x)}^{ - 1}  =    \frac { - 3x}{x   - 2}

Step-by-step explanation:

check image above

sorry for my handwriting

5 0
3 years ago
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