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aivan3 [116]
3 years ago
9

Rewrite the following polynomial in standard form. 9 + 3x – x2

Mathematics
1 answer:
Feliz [49]3 years ago
3 0

Answer:

it's already in standard form <3

Step-by-step explanation:

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7. The probability that a randomly chosen student will be left-handed is .09: a) In a class of 108, find the probability that th
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Solution :

Let x be student will be left handed

P = 0.09

Using the normal approximation to binomial distribution,

a). n = 108,

    μ = np = 9.72

    $\sigma = \sqrt{np(1-p)}$

       $=\sqrt{8.8452}$

       = 2.9741

Required probability,

P(x=8) = P(7.5 < x < 8.5)

$=P\left(\frac{7.5-9.72}{2.9741}< \frac{x-\mu}{\sigma}< \frac{8.5-9.72}{2.9741}\right)$

$=P(-0.75 < z < -0.41)$

Using z table,

= P(z<-0.41)-P(z<-0.75)

= 0.3409-0.2266

= 0.1143

b). P(x=12) = P(11.5 < x < 12.5)

$=P\left(\frac{11.5-9.72}{2.9741}< \frac{x-\mu}{\sigma}< \frac{12.5-9.72}{2.9741}\right)$

$=P(0.60 < z < 0.94)$

Using z table,

= P(z< 0.94)-P(z< 0.60)

= 0.8294 - 0.7257

= 0.1006

7 0
3 years ago
Dimensions of a house are 300 feet by 125 feet. If 1 inch represents 50 feet, what are the dimensions of the house on the drawin
Lubov Fominskaja [6]

Answer:

divide 300 feet by 50 which is 6, divide 125 ft by 50 which is 2.5. Therefore your dimensions are 6 in by 2.5 in

if you're in putting in the computer it may want 2.5 in fraction form which is 2 1/2 in or in improper fraction form 5/2 in

Step-by-step explanation:

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2 years ago
Camila tiene 5 años más que un tercio de la edad de Luis. Si Luis tiene 33 años, ¿cuántos años tiene Camila?
UNO [17]

Answer:

16

Step-by-step explanation:

33/3=11

11+5=16

3 0
3 years ago
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Answer:

The number of episodes you watch is independent.

The number of minutes you spend watching anime is dependent.

Step-by-step explanation:

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2 years ago
Mason is driving on a long road trip. He currently has 12 gallons of gas in his car. Each hour that he drives, his car uses up 1
egoroff_w [7]

After 2 hours it should have 9 gallons of gas left

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