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Sladkaya [172]
3 years ago
8

Giving brainlest and 20 points

Mathematics
1 answer:
Natali5045456 [20]3 years ago
4 0

Answer:

C. 40 square inches but i could be wrong

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PLS HELP ASAP! GIVING BRAINLY<br><br> ignore the highlighted answer
gladu [14]

Answer:

the first one

35 (that symbol i cant find it on the computer) 5

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Solve the equation x^2 – 16x + 25 = 0 to the nearest tenth.
iren [92.7K]

Answer:

1.8 and 14.3

Step-by-step explanation:

Our equation is a quadratic equation so we will use the dicriminant method

  • Let Δ be our dicriminant
  • a=1
  • b= -16
  • c= 25
  • Δ= (-16)²-4*25*1=156≥0
  • so we have two solutions : x and y
  • x= (16-\sqrt{156})/2= 1.7555≈ 1.8
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5 0
3 years ago
Can someone help me please
postnew [5]

Answer:

1/5

Step-by-step explanation:

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An equivalent fraction would be, 2/12
6 0
3 years ago
Based on past experience, 1 % of the telephone bills mailed to house-holds in Hong Kong are incorrect. If a sample of 10 bills i
nikdorinn [45]
<h2>Answer with explanation:</h2>

Given : The probability that telephone bills mailed to house-holds in Hong Kong are incorrect.=0.01

<h2>Binomial distribution :-</h2>

P(x)=^nC_xp^x(1-p)^{n-x}

If a sample of 10 bills is selected, then the probability that at least one bill will be incorrect :-

P(x\geq1)=1-P(0)\\\\=1-^{10}C_{0}(0.1)^0(0.9)^{10}\\\\=1-(0.9)^{10}=0.6513

Hence, the probability that at least one bill will be incorrect =0.6513

<h2>Poisson distribution: </h2>

P(x;\mu)=\dfrac{e^{-\mu}\mu^x}{x!}

Mean : \mu=np=10\times0.1=1

Then , If a sample of 10 bills is selected, then the probability that at least one bill will be incorrect :-

P(x\geq1)=1-P(0)\\\\=1-\dfrac{e^{-1}1^0}{0!}\\\\=1-0.3678=0.6321

Hence, the probability that at least one bill will be incorrect =0.6321

3 0
3 years ago
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