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3 years ago

Between which pair of decimals should 4/7 be placed on a number line?

Mathematics

2 answers:

Gala2k [10]3 years ago

6 0

Answer:

The correct option is C) 0.5 and 0.6

Step-by-step explanation:

Consider the provided number $\frac{4}{7}$

First convert the number $\frac{4}{7}$ into decimal form as shown:

$\frac{4}{7}=0.57142857$

Here the number is greater that 0.5

But the number is less than 0.6

Between 0.5 and 0.6 the number $\frac{4}{7}$ can be placed.

Thus, the correct option is C) 0.5 and 0.6

Bingel [31]3 years ago

4 0

Answer: C

Step-by-step explanation: Yes Your Right! C Would Be The Best Choice

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I understand the switching of positive and negative signs but I don’t understand how to get to the next step which is the answer

Finger [1]

2ab - 3a = a.(2b-3)

now the same thing

let's say n=1

a.(2b-3) + n.(2b-3) = (2b-3).(a+n)

Understood?

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3 years ago

Can you please help me please?

VashaNatasha [74]

Answer:

K= -6

Step-by-step explanation:

-12 divided by 2. Hope this helps.

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3 years ago

Claim amounts for wind damage to insured homes are independent random variables with common density f(x) = ( 3 x4 , x > 1 0 ,

Irina-Kira [14]

$f_X(x)=\begin{cases}\dfrac3{x^4}&\text{for }x>1\\\\0&\text{otherwise}\end{cases}$

This distribution has expectation

$E[X]=\displaystyle\int_{-\infty}^\infty xf_X(x)\,\mathrm dx=\int_1^\infty\frac3{x^3}\,\mathrm dx=\frac32$

a. The probability that $X$ falls below the average/expectation is

$P\left(X$

b. Denote by $X_{(3)}$ the largest of the three claims $X_1,X_2,X_3$ . Then the density of this maximum order statistic is

$f_{X_{(3)}}(x)=3f_X(x)F_X(x)^2$

where $F_X(x)=P(X\le x)$ is the distribution function for $X$ . This is given by

$F_X(x)=\displaystyle\int_{-\infty}^xf_X(t)\,\mathrm dt=\begin{cases}0&\text{for }x$

So we have

$f_{X_{(3)}}(x)=\begin{cases}0&\text{for }x1\end{cases}$

and the expectation is

$E[X_{(3)}]=\displaystyle\int_{-\infty}^\infty xf_{X_{(3)}}(x)\,\mathrm dx=\int_1^\infty\frac9{x^3}\left(1-\frac1{x^3}\right)^2\,\mathrm dx=\frac{81}{40}=\boxed{2.025}$

c. Denote by $X_{(1)}$ the smallest of the three claims. $X_{(1)}$ has density

$f_{X_{(1)}}(x)=3f_X(x)(1-F_X(x))^2=\begin{cases}0&\text{for }x1\end{cases}$

so the expectation is

$E[X_{(1)}]=\displaystyle\int_{-\infty}^\infty xf_{X_{(1)}}(x)\,\mathrm dx=\int_1^\infty\frac9{x^9}\,\mathrm dx=\frac98=\boxed{1.125}$

3 0

4 years ago

Solve the equation<br><br> 9<br> - =18<br> X

BaLLatris [955]

Answer:

x=-0.5

Step-by-step explanation:

the question is -9=18x

we divide both sides by 9

-1=2x

divide both sides by 2

x=-0.5

8 0

3 years ago

An electrician charges a set fee of $50 for every house call and then charges an additional hourly rate. One day, the electricia

Serhud [2]

Answer:

$50+5t=C$

Step-by-step explanation:

Suppose the electrician spends t hours at the house working.

Amount charged for every house call by electrician = $50

The electrician earned a total of $400 for a 5 hour job.

Also, C denotes total cost of the electrician's services.

So, the equation for C in terms of t is given below.

$50+5t=C$

Here, $C=400$

7 0

4 years ago