PLS HELP EASY ALGEBRA LOTS OF POINTSSS AND BRAINLIEST

Answer:

The Emperor Hotel in Bangkok has the higher z-score, so it is more expensive compared to other hotels in its city.

Step-by-step explanation:

Z-score:

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question:

The most expensive hotel has the higher z-score. So

Emerald Hotel in Moscow:

Costs $200, which means that [tex]X = 200[/tex]

The average hotel price in Moscow is $216 per night with a standard deviation of $32, which means that [tex]\mu = 216, \sigma = 32[/tex]. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{200 - 216}{32}[/tex]

[tex]Z = -0.5[/tex]

Ocean View Hotel in Cancun

Costs $183, which means that [tex]X = 183[/tex].

The average hotel price in Cancun is $161 per night with a standard deviation of $22, which means that [tex]\mu = 161, \sigma = 22[/tex]. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{183 - 161}{22}[/tex]

[tex]Z = 1[/tex]

Emperor Hotel in Bangkok

Costs $120, which means that [tex]X = 120[/tex].

The average hotel price in Bangkok is $100 per night with a standard deviation of $17, which means that [tex]\mu = 100, \sigma = 17[/tex]. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{120 - 100}{17}[/tex]

[tex]Z = 1.18[/tex]

The Emperor Hotel in Bangkok has the higher z-score, so it is more expensive compared to other hotels in its city.

Answer:

[tex]y = -\frac{3}{5}x -\frac{8}{5}[/tex]

Step-by-step explanation:

Given

[tex](x_1,y_1) = (-1,-1)[/tex]

[tex](x_2,y_2) = (4,-4)[/tex]

Required

Determine the line equation

First, calculate the slope (m)

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{-4 - (-1)}{4 - (-1)}[/tex]

[tex]m = \frac{-4 +1}{4 +1}[/tex]

[tex]m = \frac{-3}{5}[/tex]

[tex]m = -\frac{3}{5}[/tex]

The equation is then calculated using:

[tex]y - y_1 = m(x - x_1)[/tex]

This gives:

[tex]y - (-1) = -\frac{3}{5}(x - (-1))[/tex]

[tex]y + 1 = -\frac{3}{5}(x +1))[/tex]

Open bracket

[tex]y + 1 = -\frac{3}{5}x -\frac{3}{5}[/tex]

Make y the subject

[tex]y = -\frac{3}{5}x -\frac{3}{5}-1[/tex]

[tex]y = -\frac{3}{5}x +\frac{-3-5}{5}[/tex]

[tex]y = -\frac{3}{5}x +\frac{-8}{5}[/tex]

[tex]y = -\frac{3}{5}x -\frac{8}{5}[/tex]

Answer: -5/4

Step-by-step explanation:

The equation for solving for slope is y2-y1/x2-x1

substitute

-1-(-6) / 1-5

5/-4

slope= -5/4

Answer:

store A is 278.4 and store B is 260 and the cost for one shirt from store b is 8.125

Step-by-step explanation

6.96 x 40 gives you 278.4

325 - 20% gives you 260

325 divided by 40 gives you 8.125

then to check your answer you multiply 40 and 8.125 and it gives you 325

Answer:

$60.03

Step-by-step explanation:

7.06 x 4= 28.24

2.89 x 11 =31.79

28.24+31.79=60.03

Answer:

first one

just subtract 21 from each number

Answer:

C - {873, 894, 915, 936, …}

Step-by-step explanation:

Difference means subtraction. So, subtract -21 from the number to get your next value.

1245 - (-21) = 1266 So, A is not the answer

32 - (-21) = 53 So, B is not the answer.

873 - (-21) = 894 So, C is the answer.

1563 - (-21) = 1584 So, D is not the answer.

To double check, subtract -21 from the other numbers too.

873 - (-21) = 894

894 - (-21) = 915

915 - (-21) = 936

and so on...

This matches up with the list of numbers on option C so it it correct.

I hope this helps you Cheers!

Answer:

arithmetic

..........

Answer:  1. The right side of the real object is   4   units long.  

               2. The top side of the scale drawing is   6   units long.

Step-by-step explanation:

2:1

Scale drawing: 6x8

Object: 3x4

Divide the length in the scale drawing by 2--- The right side of the real object is   4   units long.  

8/2= 4

Multiply the top side in the real object by 2--- The top side of the scale drawing is   6   units long.

3x2=6

Answer: y=52x

at this rate, how many people will be transported on 30 buses? answer: 1560 you have to multiply 52x30=1560

Step-by-step explanation:

i’m doin this i-ready and got it right

Answer:

-5/7

Step-by-step explanation:

With the equation y = mx + b, m is the slope of the line.

Since the equation is y = -5/7x - 1, m is -5/7

So, the slope of the line is -5/7

Answer:

m = -5/7

slope = -5/7

Step-by-step explanation:

Use y = mx + b to find the slope m.

Answer:4.5 and 6 should be on there

Step-by-step explanation: multiply 1.5 by the number of candles to get the answer

Answer:

It would have to be 3x or 3(x)

Answer:

-4.125

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]\frac{21}{33}[/tex] simplified would be [tex]\frac{7}{11}[/tex]

The probability that they play violin or guitar is 7/11 .

Probability is the likeliness of an event to occur.

It is given that

The number of students who only play violin is 8

The number of students who only play guitar is 10

The number of Students who play both is 3

The number of students who don't play either is 12

Total Students = 8+10+3+12 = 33

Total favorable outcomes (violin or guitar) = 8 + 10 +3

Probability = Total favorable outcomes / Total outcomes

Probability = 21 / 33

Probability = 7/11

Therefore the probability that they play violin or guitar is 7/11 .

To know more about Probability

https://brainly.com/question/11234923

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Answer: the equation will be  y = 5/2x -5

Step-by-step explanation:

First find the slope of the line by finding the change in the y coordinates and diving it by the change in the x coordinates.

(6,10)

(4,5)  

5 - 10 = -5

4 - 6 =  -2

Slope: 5/2

(4,5)

(-2,-10)

-10 - 5 = - 15

-2-4= - 6

-15/-6 = 5/2

Now we know the slope is 2, so use the formula y=mx + b to solve for the y intercept which is b by using one of the given points.

y = mx + b

5 = 5/2(4) + b

5 = 10 + b

b =   -5

Answer:

60cm³

Step-by-step explanation:

Answer:

Average speed of Aouita = 6.68 meter per second.

Step-by-step explanation:

To create a world record Aouita ran a distance = 3000 m

He took the time to cover this distance = 7 minutes 29.45 seconds

                                                                 = (7×60) + 29.45 seconds

                                                                 = 449.45 seconds

Since, formula for the average speed is given by,

Average speed = [tex]\frac{\text{Total distance covered}}{\text{Total time taken}}[/tex]

Therefor, average speed of Aouita = [tex]\frac{3000}{449.45}[/tex]

                                                          = 6.675

                                                          ≈ 6.68 meter per second

Average speed of Aouita was 6.68 meter per second.

Answer:

6.67 m/s

Step-by-step explanation:

7 * 60 = 420

420 + 29.45 = 449.45

V = 3000. / 449.45= 6.67 m/s

Answer:

Step-by-step explanation:

From the given information:

Let A be the event where an item is identified as defective;

B₁ to be  the event where an item is actually defective

B₂ to be the event that the item is good

So;

P(B₁) = 0.009

P(B₂) = 0.991

Probability that an item is classified as defective when it is actually defective is P(A|B₁) = 0.99

Probability that an item is classified as defective when it is actually good is P(A|B₂) = 0.005

∴

Probability of classifying a product as defective = P(A)

P(A) = P(A|B₁) × P(B₁) +  P(A|B₂) × P(B₂)

P(A) = 0.99 × 0.009 + 0.005 × 0.991

P(A) = 0.0139

P(A) = 1.39%

Answer:

Step-by-step explanation:

3/3y=y/2y

3y=6

y=2

Answer:

We conclude that the total amount accrued, principal plus interest,  from compound interest on an original principal of  $4,500.00 at a rate of 3.2% per year  compounded continuously  over 1.5 years is $4,721.27.

Step-by-step explanation:

Given

To determine

Accrue Amount A = ?

Using the formula

[tex]A\:=\:Pe^{rt}[/tex]

substitute r = 0.032, P = 4500, and t = 1.5

[tex]A\:=\:4,500.00\left(2.71828\right)^{\left(0.032\right)\left(1.5\right)}[/tex]

A = $ 4721.27

Therefore, we conclude that the total amount accrued, principal plus interest,  from compound interest on an original principal of  $4,500.00 at a rate of 3.2% per year  compounded continuously  over 1.5 years is $4,721.27.

Answer:

2

Step-by-step explanation:

15y-30. Factor by finding the larger common factor.

15*y-15*2

15(y-2)

You can't solve this unless it is written as an equation:

15(y-2)=0

%2815%2F15%29%28y-2%29=0%2F15

y-2=0

y-2%2B2=0%2B2

y=2

Happy Calculating!!!

Answer: 7) -12;

               8) 0 или 1.

Step-by-step explanation:

7.

x ≤ - 12

x ∈ ( - ∞; - 12]

Наибольшее целое значение, при котором верно неравенство равно -12.

8.

-9,6*8 > - 9,627

Варианты возможных чисел: -9,618 и -9,608.

Значит вместо звездочки можно подставить цифры 0 или 1.

Answer:

1.7

Step-by-step explanation:

4.25 : 2.5 = 1.7 per hour

Answer:

0.0082 = 0.82% probability that the height of a randomly selected tree is as tall as mine or shorter.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Assume that X has a normal distribution with a mean of 191.8 ft and a standard deviation of 4 ft.

This means that [tex]\mu = 191.8, \sigma = 4[/tex]

A tree of this type grows in my backyard, and it stands 182.2 feet tall. Find the probability that the height of a randomly selected tree is as tall as mine or shorter.

This is the pvalue of Z when X = 182.2. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{182.2 - 191.8}{4}[/tex]

[tex]Z = -2.4[/tex]

[tex]Z = -2.4[/tex] has a pvalue of 0.0082

0.0082 = 0.82% probability that the height of a randomly selected tree is as tall as mine or shorter.

Answer:

44

Step-by-step explanation:

Answer:

use the pythagorean theorem to solve for the sides and the degree for both triangles so your using cos sin or tan im not sure which one

Step-by-step explanation:

i really hope this helps the question is really vague im sorry if this wasnt a help

sin(θ) = Opposite / Hypotenuse

cos(θ) = Adjacent / Hypotenuse

tan(θ) = Opposite / Adjacent

Answer:

c=2

Step-by-step explanation:

Divide the equation with b

a/b=c

4/2=c

c is equal to 2