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4 years ago

Which number is the best approximation for

Mathematics

1 answer:

olga_2 [115]4 years ago

6 0

It should be C, I got 7.1.

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Simplify -2(-9x+3) Show work

KiRa [710]

Answer:

see attached image

Step-by-step explanation:

3 0

3 years ago

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Find the value if x and if nessesary express your answer as a simplified radical

tekilochka [14]

Answer:

10 rad 3 / 2

Step-by-step explanation:

x = missing angle of the full traingle

180 - (90 + 60) = x

180 - 150 = x

30 = x

10 rad 3 / 2 = x

this is just my understanding of the problem- im sorry if im incorrect

4 0

4 years ago

Solve this equation will mark brainlyest

Ahat [919]

Answer:

x > 1⅘

Step-by-step explanation:

(⅔)x - ⅕ > 1

(⅔)x > 1⅕

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7 0

3 years ago

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Find the circumference of the pizza to the nearest whole number.

Sonja [21]

C= 2πr

C= 2 x 3.14 x 7

C = 43.96 inches

4 0

3 years ago

In a given region, the number of tornadoes in a one-week period is modeled by a Poisson distribution with mean 2. The numbers of

klio [65]

Answer:

0.1512 = 15.12% probability that fewer than four tornadoes occur in a three-week period.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given interval.

In a given region, the number of tornadoes in a one-week period is modeled by a Poisson distribution with mean 2

Three weeks, so $\mu = 2*3 = 6$

Calculate the probability that fewer than four tornadoes occur in a three-week period.

This is:

$P(X < 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)$

In which

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-6}*6^{0}}{(0)!} = 0.0025$

$P(X = 1) = \frac{e^{-6}*6^{1}}{(1)!} = 0.0149$

$P(X = 2) = \frac{e^{-6}*6^{2}}{(2)!} = 0.0446$

$P(X = 3) = \frac{e^{-6}*6^{3}}{(3)!} = 0.0892$

Then

$P(X < 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0025 + 0.0149 + 0.0446 + 0.0892 = 0.1512$

0.1512 = 15.12% probability that fewer than four tornadoes occur in a three-week period.

7 0

3 years ago