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3 years ago

I need help please help me asap!

Mathematics

1 answer:

Tju [1.3M]3 years ago

4 0

Here is the formula:

d=C/ $\pi$
Dividing fractions is the same as multiplying the reciprocal, but inorder to multiply fractions you need to convert the mixed number to an improper fraction. so .....
Formula for mixed numbers to improper fraction is:

(whole number*denominator)+numerator and you put your answer over the denomiator.

Solving everything
37 5/7 = 264/7

264/7*7/22 (reciprocal of 22/7)=
1848/154=
12

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According to a study done by a university student, the probability a randomly selected individual will not cover his or her mou

Igoryamba

Answer: kindly check explanation

Step-by-step explanation:

Probability of not covering mouth = p(success) = 0.267

Hence, p(covering mouth) = 1 - 0.267 = 0.733

a) What is the probability that among 12 randomly observed individuals exactly 8 do not cover their mouth when sneezing?

Number of samples (n) = 12

P(X = 8)

Using binomial distribution :

P(x) = nCx * p^x * (1-p)^(n-x)

P(x =8) = 12C8 * 0.267^8 * 0.733^(12-8)

P(x =8) = 12C8 * 0.267^8 * 0.733^4

= 0.00369

b) What is the probability that among 12 randomly observed individuals fewer than 6 do not cover their mouth when sneezing?

P(X < 6) = p(5) + p(4) + p(3) + p(2) + p(1) + p(0)

To save computation time, we can use an online binomial probability calculator :

P(X < 6) = 0.9275

C.) Yes, I will be surprised, because from the binomial probability obtained above, there is a high probability (0.9275) that fewer than half do not cover their mouth.

5 0

3 years ago

Factorise completely

Andreyy89

1. Number that adds up to -12 and multiplied by the same # that gives u -13. Set it up like this because both are negative so, u need 1 negative and 1 positive.
(x-13)(x+1)

2. Same rule applies. GCF
8y(4y+1)

3. (x+3)(x-3)

4 0

2 years ago

Okay so I need to know what 1 + 1 =?

Kobotan [32]

i know but yes i need to know it

4 0

2 years ago

Read 2 more answers

0.4/0.01=40 how does the quotient relate to divide

valkas [14]

Quotient is the answer of the division
0.4/0.01 = 40 x 10 = 4/0.1 = 40 x 10 = 40/1 = 40

8 0

3 years ago

Help please, see image!

nignag [31]

S is 27. SRT is 63 becuase of the vertical angles theorem. All angles of a triangle add up to 180, and you already have the other two angles. So its 27

8 0

3 years ago