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3 years ago

AM i correct? rational expression question

Mathematics

1 answer:

Basile [38]3 years ago

8 0

Answer:

$\frac{16}{7(x + 4)} + \frac{5}{7(x - 3)}$

your answer is not correct.

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Which expression is equal to 6(-3m)4?

hichkok12 [17]

Answer: -72m

Step-by-step explanation:

Simplify

7 0

3 years ago

Please I need help with this problem

Assoli18 [71]

The answer is believed to be around 1500

8 0

3 years ago

PQ is a straight line segment.According to the information marked in the figure, (I) Find the magnitude of PÔS. (ii) Find magnit

9966 [12]

Answer:

magnitude of PÔS = 60°

magnitude of SÔQ = 120°

<u>note</u>: a straight line has always 180°

<u>solve for x</u>:

PÔS + SÔQ = 180°

3x + 2x + 80° = 180°

5x = 180° - 80°

5x = 100°

x = 20°

m∠POS

3(20°)

60°

m∠SOQ

2x + 80°

2(20°) + 80°

40° + 80°

120°

5 0

2 years ago

Read 2 more answers

Assume that random guesses are made for seven multiple choice questions on an SAT test, so that there are nequals7 trials, eac

Ket [755]

Answer:

$P(X < 4)=0.1335+0.3115+0.3115+0.1730=0.9295$

Step-by-step explanation:

Question assumed: Find the probability that the number x of correct answers is fewer than 4.

1) 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".

2) Solution to the problem

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

$X \sim Binom(n=7, p=0.25)$

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:

$P(X < 4)=P(X=0)+P(X=1)+P(X=2)+P(X=3)$

$P(X=0)=(7C0)(0.25)^0 (1-0.25)^{7-0}=0.1335$

$P(X=1)=(7C1)(0.25)^1 (1-0.25)^{7-1}=0.3115$

$P(X=2)=(7C2)(0.25)^2 (1-0.25)^{7-2}=0.3115$

$P(X=3)=(7C3)(0.25)^3 (1-0.25)^{7-3}=0.1730$

$P(X < 4)=0.1335+0.3115+0.3115+0.1730=0.9295$

3 0

4 years ago

Which of the following sentences has a relative clause?

OlgaM077 [116]

B. The audience applauded the ambassador, who spoke for one-half hour.

A relative clause is a clause that starts with relative pronouns. These relative pronouns are who, that, which, whose, where, when. They are used to define the noun that precedes them.

In this case, the relative clause started with the relative pronoun who defining the ambassador.

3 0

3 years ago