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3 years ago

Math question, need help

Mathematics

2 answers:

AleksandrR [38]3 years ago

5 0

Answer:

$\boxed{\red{2x - 1 = 5x - 14}}$

First answer is correct.

Step-by-step explanation:

we know that,

${x}^{a} = {x}^{b}$

$a = b$

So, according to that,

${5}^{(2x - 1)} = {5}^{(5x - 14)}$

Therefore,

$2x - 1 = 5x - 14$

Iteru [2.4K]3 years ago

3 0

In general, if we have $x^a=x^b,$ then $a=b.$ Thus, the first answer choice is correct.

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Equation to find three consecutive odd integers whose sum is 3

KiRa [710]

The equation computed shows that the numbers will be 9, 11 and 13.

<h3>How to illustrate the information?</h3>

Let the numbers be:

First number = x

Second number = x + 2,

Third number = x + 4.

Total of the numbers = 33

The equation will be:

= first + second + third number

x + x + 2 + x + 4 = 33

3x + 6 = 33

Collect like terms

3x = 33 - 6

3x = 27.

Divide both side by 3

3x/3 = 27/3

x = 9

First number = x = 9

Second number = x + 2 = 9 + 2 = 11

Third number = x + 4. = 9 + 4 = 13

The numbers will be 9, 11, and 13.

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Illustrate the equation to find three consecutive odd integers whose sum is 33.

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1 year ago

What is the length of the unknown leg in the right triangle? A right triangle has a side with length 20 meters, hypotenuse with

galben [10]

The length of the unknown leg of the triangle is 15 m.

<u>Step-by-step explanation:</u>

Length of one leg = 20 m

Length of the hypotenuse= 25m

As it is a right angled triangle we can use pythogoras theorem.

Let the unknown length be y

(20) (20) + y(y) = (25) (25)

400 + y(y) = 625

y(y) = 225

y = √225

y = 15

The length of the unknown leg is 15 m.

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2 years ago

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What is 224 blocks with 8 blocks in each row how many rows would I make

NikAS [45]

You will need 28 rows because if you divide 224 by 8 you would get 28 (:

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3 years ago

What are the different methods in finding the LCM

Nezavi [6.7K]

Answer:

4 methods are there

Step-by-step explanation:

Find the prime factorization of each number.
Write each number as a product of primes, matching primes vertically when possible.
Bring down the primes in each column.
Multiply the factors to get the LCM.

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2 years ago

For a binomial process, the probability of success is 40 percent and the number of trials is 5. Find the standard deviation.

Yakvenalex [24]

Answer:

$Sd(X) =\sqrt{1.2}=1.095$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=5, p=0.4)$