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1 year ago

The question is in the link pls help me, fast.

Mathematics

1 answer:

MrRa [10]1 year ago

5 0

Answer:

The answer is B.

Step-by-step explanation:

The circle is filled in so we know the answer cannot be A. All the numbers after 4 are greater than or equal to 4. The arrowing is pointing toward the numbers after 4.

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If the square root of 1 over 2 x - 10 added by 3, which inequality can be used to find the domain of f(x)?

jeyben [28]

From the description, we have the function $f(x)= \sqrt{ \frac{1}{2x-10}+3 }$
Since the square root cannot be a negative number, the only thing need to do to find the domain of the function $f(x)$ is take the expression inside the square rot and set it greater or equal than zero:
$\frac{1}{2x-10}+3 \geq 0$
$\frac{6x-29}{2x-10} \geq 0$
$\frac{6x-29}{2(x-5)} \geq 0$
$x \leq \frac{29}{6}$ or $x\ \textgreater \ 5$

We can conclude that we can use the inequality $\frac{1}{2x-10}+3 \geq 0$ to find the domain of $f(x)$ . Also, the domain of $f(x)$ is (∞, $\frac{29}{6}$ ]U(5,∞).

4 0

4 years ago

Which of the sets of ordered pairs represents a function?

drek231 [11]

The answer is both A and B

8 0

3 years ago

Read 2 more answers

Some parts of California are particularly earthquake-prone. Suppose that in one metropolitan area, 32% of all homeowners are ins

Bumek [7]

Answer:

$P(X = 0) = 0.2138$

$P(X = 1) = 0.4025$

$P(X = 2) = 0.2841$

$P(X = 3) = 0.0891$

$P(X = 4) = 0.0105$

Step-by-step explanation:

For each homeowner, there are only two possible outcomes. Either they have invested in earthquake insurance, or they have not. The probability of a home owner having invested in earthquake insurance is independent from other homeowners. So we use the binomial probability distribution to solve this question.

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.

32% of all homeowners are insured against earthquake damage.

This means that $p = 0.32$

Four homeowners are to be selected at random.

This means that $n = 4$

Find the probability distribution of X.

This is the probability of each outcome

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

$P(X = 0) = C_{4,0}.(0.32)^{0}.(0.68)^{4} = 0.2138$

$P(X = 1) = C_{4,1}.(0.32)^{1}.(0.68)^{3} = 0.4025$

$P(X = 2) = C_{4,2}.(0.32)^{2}.(0.68)^{2} = 0.2841$

$P(X = 3) = C_{4,3}.(0.32)^{3}.(0.68)^{1} = 0.0891$

$P(X = 4) = C_{4,4}.(0.32)^{4}.(0.68)^{0} = 0.0105$

6 0

3 years ago

Given below are the coordinates of the vertices of a triangle. Find the lengths of the sides of the triangle, then click to iden

vodomira [7]

In order to find the lenght of the triangles you may use the next formula
<span>A(x1 , y1) , B(x2 , y2) </span>
<span>AB = sqrt[(x1-x2)^2+(y1-y2)^2]
</span>Still I have to say that the triangle you are describing is definitely Isosceles
I hope this works for you

8 0

3 years ago

Read 2 more answers

-5.225 as a mixed number.

gregori [183]

Answer:

-5 9/40

Step-by-step explanation:

3 0

3 years ago