can someone please help me with this geometry question?

Answer:

(a) less than 10 minutes

= 0.5

(b) between 5 and 10 minutes

= 0.5

Step-by-step explanation:

We solve the above question using z score formula. We given a random number of samples, z score formula :

z-score is z = (x-μ)/ Standard error where

x is the raw score

μ is the population mean

Standard error : σ/√n

σ is the population standard deviation

n = number of samples

(a) less than 10 minutes

x = 10 μ = 10, σ = 2 n = 50

z = 10 - 10/2/√50

z = 0 / 0.2828427125

z = 0

Using the z table to find the probability

P(z ≤ 0) = P(z < 0) = P(x = 10)

= 0.5

Therefore, the probability that the average waiting time waiting in line for this sample is less than 10 minutes = 0.5

(b) between 5 and 10 minutes

i) For 5 minutes

x = 5 μ = 10, σ = 2 n = 50

z = 5 - 10/2/√50

z = -5 / 0.2828427125

= -17.67767

P-value from Z-Table:

P(x<5) = 0

Using the z table to find the probability

P(z ≤ 0) = P(z = -17.67767) = P(x = 5)

= 0

ii) For 10 minutes

x = 10 μ = 10, σ = 2 n = 50

z = 10 - 10/2/√50

z = 0 / 0.2828427125

z = 0

Using the z table to find the probability

P(z ≤ 0) = P(z < 0) = P(x = 10)

= 0.5

Hence, the probability that the average waiting time waiting in line for this sample is between 5 and 10 minutes is

P(x = 10) - P(x = 5)

= 0.5 - 0

= 0.5

Answer:

D) 3x+13

Step-by-step explanation:

f(x+5)

-2+3(x+5)

-2+3x+15

3x+15-2

3x+13

Answer:

d. accuracy

Step-by-step explanation:

In measurements, accuracy is a term that is used to describe the closeness of a measured value to the actual or true value. While precision describes how close different measured values are to each other.

Thus when a measured value is accurate, it implies that the value is very close or almost equal to the true value. The correct answer to the question is  is option D.

Answer:

Approximately 14.4 inches

Step-by-step explanation:

A 16-inch laptop means that a diagonal across the screen is 16 inches.

Imagine that the laptop is a triangle, with 2 sides: the height and the width of screen, and a hypotenuse, the diagonal across the screen (see attached image).

Here, we can use the Pythagorean theorem to find the width.

The relationship is the following

[tex]diagonal^2 = height^2 + width^2[/tex]

We can rearrange this to find the width of the screen:

[tex]diagonal^2 = height^2 + width^2\\diagonal^2 -height^2 = width^2\\width^2 = diagonal^2 -height^2\\width = \sqrt{diagonal^2 - height^2}[/tex]

Let's put in our values for the diagonal and the height:

Diagonal = 16

Height = 7

[tex]width = \sqrt{16^2 - 7^2}\\ width = \sqrt{256 - 49} \\width = \sqrt{207}\\width = 14.3874946[/tex]

As we can see, the width of our laptop is around 14.4 inches.

Answer: approximately 14.4 inches

The width of the laptop screen is x = 14.3inches.

Given that,

A 16 inch laptop has a screen that is 7 inches tall.

We have to determine,

How wide is the screen.

According to the question,

 Diagonal length of the laptop = 16 inches

Length of the laptop = 7 inches

Width of the laptop = x inches

By using Pythagoras theorem,

[tex](Diagonal)^2 = (length)^{2} +( width)^{2}\\\\(16)^2 = (7)^2 + x^{2} \\\\x^{2} = 256 - 49\\\\x^{2} = 207\\\\x = \sqrt{207}\\\\x = 14.38 \ inches[/tex]

Hence, The width of the laptop screen is x = 14.3inches.

To know about Measurement click the link given below.

https://brainly.com/question/17690582

(x + y)³

  use (a + b)³ = a³ + 3a²b + 3ab² + b³

x³ + 3x²y + 3xy² + y³ =

= (x + y)³

Answer:

3/4=75%

75%/5=15%

15% of a pound is 0.15 pound. 75% of a pound is 0.75 pound. If David ate 0.15 pound of the 0.75 pound then he has 0.60 pound left. 0.75-0.15=0.6

Answer:

Step-by-step explanation:

(-3, -6) (0, -4)

(-4 + 6)/(0 + 3)= 2/3

y + 4 = 2/3(x - 0)

y + 4 = 2/3x - 0

y = 2/3x - 4

answer is c

Answer:

d

Step-by-step explanation:

Answer:

co ordinates of X is (-8,4)

Answer:

8

Step-by-step explanation:

68/8.2=8

Answer:

Population in 2100 is 17.99 billion.

Step-by-step explanation:

The population of the world in 2020  = 7.8 billion.

The growth rate = 1.05%

Now find the population after 2100. Use the below formula to find the population.

Population in 2100 = Population of 2020 (1 + growth rate)^n

Population in 2100 = 7.8 (1 + 0.0105)^80

Population in 2100 = 17.99 billions.

Now, find the growth rate in 2100.

dN/dt = [r N (K – N) ] / K

r = Malthusian parameter

K = carrying capacity.

Now divide both sides by K, now x = N/K then do the differential equation.

dx/dt = r x ( 1- x)

Now integrate, x(t) = 1/ [ 1 + (1/x – 1) c^-rt

From the first equation = dN/dt = (13 – 7.8) / 80 = (r × 7.8×(13 – 7.8) / 12

0.065 = (r × 7.8× 5.2) / 12

0.065 = r × 3.38

r = 1.92%

Answer:

Step-by-step explanation:

-12 = 4p

-12/4 = p

-3 = p

Answer:

-3

Step-by-step explanation:

-12 =4p

p =-12:4

p =-3

Answer: 4,607 would be the correct answer. Hope your having a great day!!!

Answer:

x=3 LA=12

Step-by-step explanation:

PL plus PA is equivalent to LA. So, (x+4)+(2x-1)=5x-3, which can be rewritten as 3x+3=5x-3. Now we can add 3 to both sides to get 3x+6=5x and subtract 3x from both sides to get 6=2x. Now we divide by 2 on both sides to get x, which is 3, and we can plug that into the equation for LA. So we get 5(3)-2=LA. LA equals 12.

Steps to solve (x+4)+(2x-1)=5x-3:

1: (x+4)+(2x-1)=5x-3

2: 3x+3=5x-3 Rewrite equation

3: 3x+6=5x Add 3 to both sides

4: 6=2x Subtract 3x from both sides

5: 3=x Divide by 2 on both sides

The value of x is 3 and the value of LA is 12.

PL = x + 4,

PA = 2x − 1,

LA = 5x − 3.

Since P is between L and A, then the equation to get x will be:

PL + PA = LA

(x + 4) + (2x - 1) = (5x - 3)

Open the bracket

x + 4 + 2x - 1 = 5x - 3

Collect like terms

3x + 3 = 5x - 3

5x - 3x = 3 + 3

2x = 6

x = 6/2

x = 3

LA = 5x - 3

LA = 5(3) - 3

LA = 15 - 3.

LA = 12

Read related link on:

https://brainly.com/question/9497968

Answer: (4,15)

Step-by-step explanation

just did it

Answer:

(4,15) answer is D

Step-by-step explanation:

Hey there!

[tex]Answer:\boxed{r>1}[/tex]

[tex]-26+13r+2>2-13r[/tex]

Let's start by simplifying both sides of the inequality.

[tex]13r-24>-13r+2[/tex]

Now add 13r to both sides of the inequality.

[tex]13r-24+13r>-13r+2+13r\\26r-24>2[/tex]

Now add 24 to both sides of the inequality.

[tex]26r-24+24>2+24\\26r>26[/tex]

In our fourth/last step, we will divide both sides of the inequality by 26.

[tex]\frac{26r}{26}>\frac{26}{26}\\ r>1[/tex]

[tex]\boxed{r>1}\text{ is your final answer.}[/tex]

Hope this helps!

[tex]\text{-TestedHyperr}[/tex]

Answer:

B and c and e

Step-by-step explanation:

Sorry if late I need points

The sums 5 + (–2), –3 + 4, and –2 + 4 are positive option (B), (C), and (E) are correct.

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

It is given that:

A.–5 + (–2)

= -5 + (-2)

= -5 - 2

= -7 (negative)

B. 5 + (–2)

= 5 - 2

= 3 (positive)

C. –3 + 4

= -3 + 4

= 1 (positive)

D. 0 + (–3)

= -3 (negative)

E. –2 + 4

= -2 + 4

= 2 (positive)

Thus, the sums 5 + (–2), –3 + 4, and –2 + 4 are positive option (B), (C), and (E) are correct.

Learn more about the arithmetic operation here:

brainly.com/question/20595275

#SPJ2

Answer:

The answer is 527745.098

Step-by-step explanation:

527,381 + 364.098 = 527745.098

Answer:

30 and 60 degrees

Step-by-step explanation:

30 and 60 are complementary angles. 60 is two times the measure of its complementary angle, or 30. 60+30=90.

Complementary angles are angles that add up to 90 degrees.

Angle one = x

Angle two = 2x

2x + x = 90 degrees

Combine like terms.

3x = 90 degrees.

Divide both sides by 3

x = 30

Angle one = x = 30 degrees

Angle two = 2x = 2(30) = 60 degrees.

Answer: [tex]\frac{355}{7}[/tex]

Decimal Answer: 47.857143

Please Mark Me As Brainliest If I Helped. Have a Great Day :D

Answer:

1

Step-by-step explanation:

Answer:

The first thing to do is to find out which answer choices are similar and then it will be easier to find an answer.

Step-by-step explanation:

Answer:

Unit rate are

22 words per minute

34 miles for each gallon

60 miles per hour

$8 for every hour

Not a unit rate

168 hours in 7 days

$15 for 2 DVDS

Answer:

$47.25

Step-by-step explanation:

Earnings = (rate of pay)(number of hours worked)

Here,

Earnings last weekend = ($8.75/hr)(5.4 hrs) = $47.25

Answer:

135

Step-by-step explanation:

To answer this question you would write down 105+165 you'll get 260 then to know how much wilma will have to pay you would take the amount wilma pays monthly which is 395 and the answer you got from 105+165 which is 260 and add 395-260 so, 395-260=135

Answer: Wilma should also consider the expenses of fuel, maintenance, and repairs. These are variable expenses and can vary greatly from month to month. To make sure that she can afford a new car, she needs to include these variable expenses in her car budget calculations. If Wilma can’t afford these expenses, she may need to choose a different car with a lower monthly payment or one that requires fewer maintenance costs.

Step-by-step explanation:

Trust / plato / edmentum

Answer:

A chord is the line segment joining two points on a curve. The endpoints of a chord always lies on the circle.

It has a formula of ;

 [tex]2r sin\frac{\theta}{2}[/tex]

Step-by-step explanation:

a

Step-by-step explanation:

you are trying to divide x by 7 to isolate x. so you divide by 8 on both sides.

Answer:

y = 12x -18

Step-by-step explanation:

12x−y−8=10

Slope intercept form is

y = mx+b where m is the slope and b is the y intercept

Solve for y

Add 8 to each side

12x−y−8+8=10+8

12x -y = 18

Subtract 12x from each side

-y = -12x +18

Divide by -1

y = 12x -18

Answer:

y=12x-18

Step-by-step explanation:

12x-y-8=10

12x-y=18

-y=-12x+18

y=12x-18

Answer:

You can spend all of the money by getting 1 sandwich and 2 things of chips

Step-by-step explanation:

1 sandwich =4$

1 bag of chips =3$

4 + 3 =7

7+ 3= 10