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lesya [120]
3 years ago
12

|2x-1|=2 find the value of x

Mathematics
1 answer:
sattari [20]3 years ago
4 0

Answer:

x = 3/2, -1/2 OR x = 1.5, -0.5 OR x = 1 1/2, -1/2

Any of these above work!

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8_murik_8 [283]

Answer:

A

Step-by-step explanation:

We can see that the -5 means that we move 5 unites down

Only A has this option

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Galina-37 [17]

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Step-by-step explanation:

It is easy just: step 1: connect all dots then add your numbers up

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Xelga [282]
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4. Television viewing reached a new high when the Nielsen Company reported a mean daily viewing time of 8.35 hours per household
KonstantinChe [14]

Answer:

(a) 0.9838 (b) 0.6553 (c) 13.05198

Step-by-step explanation:

We have that the daily viewing time is a random variable normally distributed with mean and standard deviation

\mu = 8.35 hours  and

\sigma = 2.5 hours

respectively. If we call the random variable X, the density function of this random variable is given by

f(x) = \frac{1}{\sqrt{2\pi}2.5}\exp[-\frac{(x-8.35)^{2}}{2(2.5)^{2}}], and we can calculate the next probabilities using a computer or a table from a book.

(a) P(X>3)=\int\limits^{\infty}_3 {f(x)} \, dx=0.9838

in the R statistical programming language we use the instruction pnorm(3, mean = 8.35, sd = 2.5, lower.tail = FALSE)

(b) P(5\leq X\leq 10) = \int\limits^{10}_5 {f(x)} \, dx = 0.6553

in the R statistical programming language we use the instruction

pnorm(10, mean = 8.35, sd = 2.5) - pnorm(5, mean = 8.35, sd = 2.5)

(c) You should find a value x_{0} such that

P(X\geq x_{0}) = 0.03, this value is  x_{0}=13.05198

The instruction qnorm(0.03, mean = 8.35, sd = 2.5, lower.tail = FALSE) give us 13.05198 in the R statistical programming language.

3 0
3 years ago
Read 2 more answers
Different types of parallelograms have distinguishing traits. Compare and contrast the rectangle, rhombus, and square based upon
svetoff [14.1K]
In a rectangle and square, the opposites are parallel. In a rhombus, they are not parallel.

In a rectangle and square, the opposite sides are also congruent to each other.

In a square and rhombus, all 4 sides of the shape are congruent.
7 0
3 years ago
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