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3 years ago

Consider the ratio 3:5.can you create an equivalent ratio by adding the same number to each quantity in the ratio?Explain

Mathematics

1 answer:

soldi70 [24.7K]3 years ago

8 0

Answer: no

Step-by-step explanation: the ratio 3:5 can be written as 3/5 which 3/5 is not equal to 4/6 or 7:9

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What point is the solution to the system of equations y = -1/2 and y = 2x - 5?

tatuchka [14]

Answer:

(2.25,-0.5)

Step-by-step explanation:

If you were to graph the equations, they intersect at the points 2.25, and -0.5.

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3 years ago

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Assume that a procedure yields a binomial distribution with a trial repeated n = 5 times. Use some form of technology to find th

Digiron [165]

Answer:

$P(X = 0) = 0.0263$

$P(X = 1) = 0.1407$

$P(X = 2) = 0.3012$

$P(X = 3) = 0.3224$

$P(X = 4) = 0.1725$

$P(X = 5) = 0.0369$

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

And p is the probability of X happening.

In this problem we have that:

$n = 5, p = 0.517$

Distribution

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{5,0}.(0.517)^{0}.(0.483)^{5} = 0.0263$

$P(X = 1) = C_{5,1}.(0.517)^{1}.(0.483)^{4} = 0.1407$

$P(X = 2) = C_{5,2}.(0.517)^{2}.(0.483)^{3} = 0.3012$

$P(X = 3) = C_{5,3}.(0.517)^{3}.(0.483)^{2} = 0.3224$

$P(X = 4) = C_{5,4}.(0.517)^{4}.(0.483)^{1} = 0.1725$

$P(X = 5) = C_{5,5}.(0.517)^{5}.(0.483)^{0} = 0.0369$

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4 years ago

242,628 written in word form

Svet_ta [14]

Two hundred forty two thousand, six hundred twenty eight.

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3 years ago

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Find the balance in Grace’s account after 2 years for a principal of $2500 if the bank pays simple interest at a rate of 5.25%.

zavuch27 [327]

Answer:

2762.5

Step-by-step explanation:

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3 years ago

A piece of cable 1/2 cm long weighs 25 grams. What will a 1 1/2cm length of the same cable weigh?

Likurg_2 [28]

Answer:

75 grams

Step-by-step explanation:

1/2 cm = 25 grams

(1 1/2) /( 1/2) = 3 times as much

1 1/2 cm = 3 x 25 75 grams

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3 years ago