Please help...............................

Answer:

English

Step-by-step explanation:

hola soy dora dododododo Dora dododododo dora

Answer:

(-3,5) (-1,6)

Step-by-step explanation:

In quadrant 2, the x-axis is negative while the y-axis is a positive

~~~Hope this helps~~~ :)

Answer:

The probability that the sample average will be between $30.00 and $31.00 is 0.6553.

Step-by-step explanation:

Let X represent the hourly wage for Switzerland.

It is provided that the mean hourly wage for Switzerland was $30.67 and the standard deviation of hourly labor rates is $3.00.

A random sample of 36 manufacturing workers are selected randomly from across Switzerland and asked what their hourly wage.

According to the Central Limit Theorem if an unknown population is selected with mean μ and standard deviation σ and appropriately huge random samples (n > 30) are selected from this population with replacement, then the distribution of the sample means will be approximately normally.  

As n = 36 > 30, Central limit theorem is applicable.

Then, the mean of the sample means is given by,

[tex]\mu_{\bar x}=\mu=30.67[/tex]

And the standard deviation of the sample means is given by,

[tex]\sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}=\frac{3}{\sqrt{36}}=0.50[/tex]

Compute the probability that the sample average will be between $30.00 and $31.00 as follows:

[tex]P(30<\bar X<31)=P(\frac{30-30.67}{0.50}<\frac{\bar X-\mu_{\bar x}}{\sigma_{\bar x}}<\frac{31-30.67}{0.50})[/tex]

                         [tex]=P(-1.34<Z<0.66)\\\\=P(Z<0.66)-P(Z<-1.34)\\\\=0.74537-0.09012\\\\=0.65525\\\\\approx 0.6553[/tex]

Thus, the probability that the sample average will be between $30.00 and $31.00 is 0.6553.

Answer: The percentage of these cans will have less than 15.6 ounces = 2.28%

Step-by-step explanation:

Let x = amount of soda in a 16-ounce can which  is normally distributed.

[tex]\mu=16\text{ ounces},\ \ \ \ \sigma=0.20\text{ ounces}[/tex]

The probability that cans will have less than 15.6 ounces:

[tex]P(X<15.6)=P(\dfrac{X-\mu}{\sigma}<\dfrac{15.6-16}{0.20})\\\\=P(z<-2)=1-P(Z<2)\\\\=1-0.9772\ \ \ [\text{By p-value table}]\\\\=0.0228=2.28\%[/tex]

Hence, the percentage of these cans will have less than 15.6 ounces = 2.28%

The original price is $740.

[tex] \frac{(100 - 15)}{100} = \frac{629}{x} [/tex]

[tex]85x = 62900[/tex]

[tex]62900 \div 85 = x[/tex]

[tex]x = 740[/tex]

Let me know if you need more help understanding. :)

Answer:b

Step-by-step explanation:the answer is b just think about it

Answer:

s=x(20)

Step-by-step explanation:

s= solution

x= # of weeks

4x2=8

4x3=12

12+8=20

Answer:

Answer is D (no solution)

Step-by-step explanation:

-2(x + 3) = -2(x + 1) - 4 --------multiply what's on the outside with everything on the inside

-2x - 6 = -2x - 2 - 4 -----collect like terms

-2x + 2x = 6 - 2 - 4 --------- add/subtract

0 = 4 - 4

0 = 0

Step-by-step explanation:

i can fit 2 in my mouth 3 pushing

Given:

The probability of drawing a blue cube from a hat is 80%.

To find:

The probability of drawing 4 blue cubes in a row.

Solution:

Let E be the event of drawing a blue cube from a hat.

[tex]P(E)=80\%[/tex]

[tex]P(E)=\dfrac{80}{100}[/tex]

[tex]P(E)=0.8[/tex]

We need to find the probability of drawing 4 blue cubes in a row.

Let as consider each cube is replaced after being drawn. So, that probability of drawing a blue cube from a hat remains same.

Probability of drawing 4 blue cubes in a row is

[tex]P(E)\times P(E)\times P(E)\times P(E)=(P(E))^4[/tex]

                                                          [tex]=(0.8)^4[/tex]

                                                          [tex]=0.4096[/tex]

Therefore, the required probability is 0.4096.

Answer: 20

Step-by-step explanation:

Answer:

The probability is 0.9545

Step-by-step explanation:

We start by using z-scores here

Mathematically;

z-score = (x-mean)/SD

mean = 24 ounces

SD = 3 ounces

For 18, we have

z-score = (18-24)/3 = -6/3 = -2

For 30, we have

z-score = (30-24)/3 = 6/3 = 2

So the probability we want to calculate is;

P( -2 < x < 2)

We can use the standard normal distribution table for this

From the standard normal distribution table;

P(-2 < x < 2) = 0.9545

Answer:

x=-1

Step-by-step explanation:

y=-3x+3 would be the equation of the line. set y to 0 to get x intercept. 0=3x+3 x=-1

Answer:

X=1

Step-by-step explanation:

Answer:

The answer is below

Step-by-step explanation:

The time between arrivals of taxis at a busy intersection is exponentially distributed with a mean of 10 minutes. (a) What is the probability that you wait longer than one hour for a taxi? (b) Suppose that you have already been waiting for one hour for a taxi. What is the probability that one arrives within the next 10 minutes? (c) Determine x such that the probability that you wait more than x minutes is 0.10. (d) Determine x such that the probability that you wait less than x minutes is 0.90.

Answer:

A continuous variable is has a probability distribution function as:

[tex]f(x)=\lambda e^{-\lambda x}[/tex]

A continuous variable is has a cumulative distribution function as:

[tex]F(x)=1- e^{-\lambda x}[/tex]

Given mean  = 10 minutes

[tex]mean=\frac{1}{\lambda}\\ \\10=\frac{1}{\lambda}\\\\\lambda=\frac{1}{10}[/tex]

a) P(X > 1 hour) = P(X > 60 minutes) = 1 - F(60) = [tex]1-[1-e^{-60*0.1}]=0.0025[/tex]

b) P(X < 70 | x > 60) = P(X < 10) = [tex]1-e^{-10*0.1}=0.6321[/tex]

c) 0.1 = P(X > x)

0.1 = 1 - F(x)

[tex]0.1=1-[1-e^{-0.1*x}\\\\0.1=e^{-0.1x}\\\\ln(0.1)=-0.1x\\\\-2.3=-0.1x\\\\x=23\ minutes[/tex]

d) 0.9 = P(X < x)

0.9 = F(x)

[tex]0.9=1-e^{-0.1*x}\\\\e^{-0.1x}=1-0.9\\\\e^{-0.1x}=0.1\\\\ln(0.1)=-0.1x\\\\-2.3=-0.1x\\\\x=23\ minutes[/tex]

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[tex] {2}^{10} = {2}^{2 \times 5} = {2}^{ {2}^{5} } = {4}^{5} \\ [/tex]

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Answer:

A = - 0.3 and B = - 0.1.

Step-by-step explanation:

y(x) = A sinx + B cosx

y'(x) = A cosx - B sinx

y"(x) = -A sinx - B cos x

So, substituting we have:

y" + y' - 2y = -A sinx - B cos x + A cosx - B sinx - 2(A  sinx + B cosx)

=    -3A sin x - B sinx + A cosx  - 3B cos x = sinx

sin x (-3A - B) + cos x(A - 3B) = sin x

Since this is an identity then we equate coefficients:

-3A - B =  1

A - 3B = 0

Solving these we get A = - 0.3 and B = - 0.1.

Answer:

b is correct

Step-by-step explanation:

Answer:

I'm pretty sure it's the 3rd option.

Step-by-step explanation:

20x+6=22x-6

6+6=22x-20x

12=2x

x=12/2

x=6°

13x+8=112

13x=112-8

13x=104

x=104/13

x=8°

Answer:

27.7142857143 this is the awnser

Answer:

10-15 mins

Step-by-step explanation:

Answer:

10-15 minutes

Step-by-step explanation:

im not sure though because you didn't give me enough information

Answer:

0.288

Step-by-step explanation:

Given that :

Correlation (R) = 0.48

Slope of linear model which predicts Lifespan from years of education (m) = 0.8

To determine the value of slope of the model which predicts years of eductauoon from lifespan:

The square of the regression Coefficient is multiplied by the inverse of the slope of linear model which predicts Lifespan from years of education

Hence,

(R² * 1/m)

0.48² * 1/0.8

0.2304 * 1.25

= 0.288

Answer:

Step-by-step explanation:

15

Answer:

15

Step-by-step explanation:

mode is the most occurring

first let's put our data in order

2, 5, 6, 8, 10, 11, 15, 15, 16, 17, 20, 25

each number occurs once except 15

15 occurs twice which means it's the most occurring or mode

Answer:

4. is x = 9

but I don't know about 5. sorry.

Step-by-step explanation:

5x + 3 = 48

-3. -3

5x = 45

5. 5

x = 9

5(9) + 3 = 48

48 = 48

Answer:

C = 2.75 g

Step-by-step explanation:

Answer:

15

Thanks, lolllllllllll

Answer:

15

Step-by-step explanation: