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3 years ago

Will give brainlst!!

Mathematics

1 answer:

Serhud [2]3 years ago

8 0

Answer: 2.5, 21/8, √25, pi, √19

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Write 0.9 as a fraction

Grace [21]

Answer:

The answer is 9/10

Step-by-step explanation:

it's 9/10

5 0

3 years ago

Read 2 more answers

What is the value of 4x to the third +4x if x is 4

weqwewe [10]

The correct answer of
$4{x}^{2} + 4x$
if x=4 is 272.

to solve the equation if x equals 4, you must substitute the x of the 4.
$4( {4}^{3} ) + 4(4)$
then solve by order of operations.
solve what is inside the parentheses first
$4(64) + 4(4)$
then do the multiplication of the factors
$256 + 16$
then the final step, adding, to get the solution of 272

5 0

4 years ago

Helpppp

Morgarella [4.7K]

1. y = c - x
2. y = ( t - 3x ) / 2
3. y = ( 4p ) / 3
4. y = ( 2 - 4s ) / 3s

8 0

3 years ago

An article reports that 1 in 500 people carry the defective gene that causes inherited colon cancer. In a sample of 2000 individ

Tema [17]

Answer:

a) P=0.558

b) P=0.021

Step-by-step explanation:

We can model this random variable as a Poisson distribution with parameter λ=1/500*2000=4.

The approximate distribution of the number who carry this gene in a sample of 2000 individuals is:

$P(x=k)=\frac{\lambda^ke^{-\lambda}}{k!} =\frac{4^ke^{-4}}{k!}$

a) We can calculate that the approximate probability that between 4 and 9 (inclusive) as:

$P(4\leq x\leq 9)=\sum_{k=4}^9P(k)\\\\\\ P(4)=4^{4} \cdot e^{-4}/4!=256*0.0183/24=0.195\\\\P(5)=4^{5} \cdot e^{-4}/5!=1024*0.0183/120=0.156\\\\P(6)=4^{6} \cdot e^{-4}/6!=4096*0.0183/720=0.104\\\\P(7)=4^{7} \cdot e^{-4}/7!=16384*0.0183/5040=0.06\\\\P(8)=4^{8} \cdot e^{-4}/8!=65536*0.0183/40320=0.03\\\\P(9)=4^{9} \cdot e^{-4}/9!=262144*0.0183/362880=0.013\\\\\\$

$P(4\leq x\leq 9)=\sum_{k=4}^9P(k)=0.195+0.156+0.104+0.060+0.030+0.013=0.558$

b) The approximate probability that at least 9 carry the gene is:

$P(x\geq9)=1-P(x\leq 8)\\\\\\$

$P(0)=4^{0} \cdot e^{-4}/0!=1*0.0183/1=0.018\\\\P(1)=4^{1} \cdot e^{-4}/1!=4*0.0183/1=0.073\\\\P(2)=4^{2} \cdot e^{-4}/2!=16*0.0183/2=0.147\\\\P(3)=4^{3} \cdot e^{-4}/3!=64*0.0183/6=0.195\\\\P(4)=4^{4} \cdot e^{-4}/4!=256*0.0183/24=0.195\\\\P(5)=4^{5} \cdot e^{-4}/5!=1024*0.0183/120=0.156\\\\P(6)=4^{6} \cdot e^{-4}/6!=4096*0.0183/720=0.104\\\\P(7)=4^{7} \cdot e^{-4}/7!=16384*0.0183/5040=0.06\\\\P(8)=4^{8} \cdot e^{-4}/8!=65536*0.0183/40320=0.03\\\\$

$P(x\geq9)=1-P(x\leq 8)\\\\P(x\geq9)=1-(0.018+0.073+0.147+0.195+0.195+0.156+0.104+0.060+0.030)\\\\P(x\geq9)=1-0.979=0.021$

8 0

3 years ago

Factor completely. (3.2² - 12x)(x2 – 2x + 1) =

pychu [463]

Answer:

3x • (x - 4) • (x - 1)2

Step-by-step explanation:

5 0

3 years ago