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Mkey [24]
3 years ago
7

You are playing a game where you win $5 if you draw a card that is 9 or lower. J, Q, K, and A count as 10. How much should you b

et to break even?
$3.46

$3.08

$3.14

$3.64
Mathematics
1 answer:
GaryK [48]3 years ago
5 0
3.08 hjknhuiniuniuhybybybyyby
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If a 10 cm radius wheel rotates through 2 radians how many meters has it rolled?
IrinaK [193]
2 radians = 2 full rotations
pi = 3.14

circumference of wheel = 2(pi)r
= 20 * 3.14
=62.8 cm
= 0.628m

meters rolled = 0.628 * 2
=1.256 m
6 0
3 years ago
Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the proporti
hodyreva [135]

Answer:

The sample size n = 4225

Step-by-step explanation:

We will use maximum error formula = \frac{z_{a} S.D}{\sqrt{n} }

but we will find sample size "n"

\sqrt{n}  = \frac{z_{a} S.D}{maximum error}

Squaring on both sides , we get

n  = (\frac{z_{a} S.D}{maximum error})^2

Given 99% confidence interval (z value) = 2.56

given maximum error = 0.02

n  = (\frac{z_{a} p(1-p)}{maximum error})^2

n≤ (\frac{2.56X\frac{1}{2} }{0.02}) ^{2}    ( here S.D = p(1-p) ≤ 1/2

on simplification , we get n = 4225

<u>Conclusion</u>:

The sample size of two samples is  n = 4225

<u>verification</u>:-

We will use maximum error formula = \frac{z_{a} S.D}{\sqrt{n} } = \frac{2.56 1/2}{\ \sqrt{4225} }  = 0.0196

substitute all values and simplify we get maximum error is 0.02

4 0
3 years ago
The value of P where P= (1)2 + (3)2 + (5)2 +......... + (25)?
kramer

Answer:

338

Step-by-step explanation:

1×2=2 2+6+10+14+18+22+26+30

3×2=6 +34+36+38+42+46+50=338

5×2=10

7×2=14

9×2=18

11×2=22

13×2=26

15×2=30

17×2=34

19×2=38

21×2=42

23×2=46

25×2=50

6 0
3 years ago
8 - 1/3x = 16 <br> PLEASE ANSWER ITS DUE TOMORROW
Ilya [14]
X = 8/(-1/3) therefore the answer is -24
5 0
3 years ago
Convert 12 cups to quarts
eduard

Answer:

3 quarts

Step-by-step explanation:

divide the volume value by 4

4 0
3 years ago
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