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3 years ago

A man is walking down a very long flight of

Mathematics

1 answer:

Alex3 years ago

5 0

Answer:

33.6 seconds

Step-by-step explanation:

if he begins at 136 feet and wants to go to 42 feet, the distance is 94 feet

d = 94

r = 2.8

d = rt; solving this formula for 't':

t = d/r

t = 94/2.8

t = 33.6 seconds

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1. f(x) = x(x-6)(x+3)

maks197457 [2]

Answer:

x3squared-3x2squared-18x

Step-by-step explanation:

1 Expand by distributing terms.

({x}^{2}-6x)(x+3)(x

−6x)(x+3)

2 Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd(a+b)(c+d)=ac+ad+bc+bd.

{x}^{3}+3{x}^{2}-6{x}^{2}-18xx

+3x

−6x

−18x

3 Collect like terms.

{x}^{3}+(3{x}^{2}-6{x}^{2})-18xx

+(3x

−6x

)−18x

4 Simplify.

{x}^{3}-3{x}^{2}-18xx

−3x

−18x

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3 years ago

What is the value of p?

vfiekz [6]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The probability that an egg on a production line is cracked is 0.01. Two eggs are selected at random from the production line. F

musickatia [10]

Answer:

$P(X \geq 1)=1-P(X$

$P(X=0)=(2C0)(0.01)^0 (1-0.01)^{2-0}=0.9801$

And replacing we got:

$P(X \geq 1) = 1-0.9801 = 0.0199$

Step-by-step explanation:

Let X the random variable of interest "number of craked eggs", on this case we now that:

$X \sim Binom(n=2, p=0.01)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find this probability:

$P(x \geq 1)=1-P(X$

And we can find the probability:

$P(X=0)=(2C0)(0.01)^0 (1-0.01)^{2-0}=0.9801$

And replacing we got:

$P(X \geq 1) = 1-0.9801 = 0.0199$

5 0

2 years ago

HELP ASAP

Ilya [14]

Answer:

Step-by-step explanation:

it is an adjacent/linear pair

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3 years ago

A construction team has enough asphalt to cover 600 square feet of ground.

julsineya [31]

D. 24ft by 24ft

24x24 = 576 ft squared

3 0

3 years ago