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2 years ago

Find the value of X

Mathematics

2 answers:

emmasim [6.3K]2 years ago

7 0

Answer: 20 i think srry if its wrong

Step-by-step explanation:

HACTEHA [7]2 years ago

6 0

Answer:

x = -1

Step-by-step explanation:

<u>To solve this type of mathematical problem, you need to set up an equation.</u>

Since AB = 5 and BC = 2x + 6, AC must = 2x + 6 + 5.

AC is also given another equivalent value, x + 10. That means an equation is given to solve for x:

2x + 6 + 5 = x + 10

<u>Time for solving!</u>

2x + 6 + 5 = x + 10 First, bring x to one side by subtracting x on both sides.

x + 6 + 5 = 10 Now, simplify the equation to make it more readable.

x + 11 = 10 Lastly, isolate x by subtracting 11 from both sides.

x = -1

The value of x is -1

You might be interested in

The product of two rational numbers is irrational.

PtichkaEL [24]

Answer:

The statement is false.

Step-by-step explanation:

Here we need to remember some things:

Integer numbers are closed under multiplication.

This means that for two integers a and b, the product a*b is also an integer.

A rational number is a number that can be written as the quotient of two integer numbers.

An irrational number is a number that can't be written as the quotient of two rational numbers.

Now let's see the statement:

"The product of two rational numbers is irrational."

The product of two rational numbers is written as:

$\frac{a}{b} *\frac{c}{d}$

Where a, c, b, and d are integers.

We can rewrite that product as:

$\frac{a*c}{b*d}$

Because of the first property, we know that a*c is an integer, and b*d is also an integer, so here we have a quotient of two integer numbers, so this is a rational number.

Then the product of two rational numbers is a rational number.

Then the statement is false.

7 0

2 years ago

What is the definition of y=mx+b

Brut [27]

Answer:

In the equation of a straight line (when the equation is written as "y = mx + b"), the slope is the number "m" that is multiplied on the x, and "b" is the y-intercept (that is, the point where the line crosses the vertical y-axis).

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

I need to know the letter order these go in

Serjik [45]

Answer:

if you are talking about the sentence you just said themln

go i in know letter need order the these to

Step-by-step explanation:

if thats not what you want then you gotta elaborate

4 0

2 years ago

Read 2 more answers

Which type of interest is earned on both the principal plus any previous interest earned?

NemiM [27]

Answer:

compound interest

Step-by-step explanation:

The interest charged on the principal for the entire loan term is known as Simple Interest. The interest computed on both principal and the previously earned interest is known as Compound Interest. Compound Interest gives a high return as compared to Simple Interest.

6 0

3 years ago

Thirty percent of all telephones of a certain type are submitted for service while under warranty. Of these, 70% can be repaired

Varvara68 [4.7K]

Answer:

$X \sim Binom(n=10, p=0.3)$

And for this case we want to find this probability:

$P(X =2)$

And we can use the probability mass function and we got:

$P(X=2)=(10C2)(0.3)^2 (1-0.3)^{10-2}=0.233$

Step-by-step explanation:

Previous concepts

A Bernoulli trial is "a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted". And this experiment is a particular case of the binomial experiment.

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".

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:

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

Solution to the problem

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

$X \sim Binom(n=10, p=0.3)$

And for this case we want to find this probability:

$P(X =2)$

And we can use the probability mass function and we got:

$P(X=2)=(10C2)(0.3)^2 (1-0.3)^{10-2}=0.233$

4 0

2 years ago