how many 4-digit natural numbers are there?

Answers

Answer 1

Answer:

9000

Step-by-step explanation:

There are 4 numbers (any number from 0-9) in a 4-digit number and the starting number should be 1 or bigger than 1. The thousands place in a 4-digit number cannot be 0. The smallest 4 digit number is 1000 and the greatest 4 digit number is 9999. There are 9000 four-digit numbers in all


Related Questions

If a train travels 156 miles in 4 hours how many miles per hours dose it travel

Answers

39 miles per hour

156/4=39

Answer:

39mph

Step-by-step explanation:

plz mark brainliest

help in pic ANYONE??

Answers

Gs umm 222 x 666 the woods on bay bay and I =372828

What is the combined area of the left and right faces of the prism? ___in. 2

Answers

Answer: 72

Step-by-step explanation:

Answer:

72 in.2

Step-by-step explanation:

Did it :)

Solve for x: - 3x + 5 = -8x + 10​

Answers

The answers is X=1 because it is

Find the missing side lengths.

Can someone please help???

Answers

Answer:

x = sqrt (2), y = sqrt (2)

Step-by-step explanation:

Here is how we can approach this problem in a step by step solution:

Look at what we are given - we know that the triangle is a right triangle (has a square on one of its angles representing 90 degrees), and the hypotenuse (the side opposite 90 degree angle) is 2 units long, and one of the other angles is 45 degreesUsing this information about angle measurements, we can solve for the third angle using the sum of angles in a triangle equals 180 degrees theorem: 180 - 90 - 45 = 45. After solving, we get that the final angle is 45 degreesNow, we know that the angles of the triangle are 90, 45, and 45 degrees. Using the base angle theorem, we know that his triangle must be an isocoles right triangleThat means that both legs of the triangle must be congruent (x = y)Finally, we can use the Pythagorean theorem because this is a right triangle to solve for the missing sides 4 = x^2 + y^2, 4 = 2 + 2, x = sqrt (2) y = sqrt (2)

*Also, if you knew that a 45-45-90 triangle's sides form a ratio of a, a, and sqrt (2) a, you could also use that and substitute in the values to solve. Both ways work! Hope this helps!!

The population of Jefferson City is 95000. Assuming a growth rate of 2.5% per year, what will the population be in 15 years?

Answers

Answer:

Yearly growth: 137,588

Continuous growth: 3,971,611

In 2.5 hours, 0.64 inch of rain fell. At about what rate did the rain fall? A 0.18 inch per hour 8 0.26 inch per hour 0 0.32 inch per hour D 1.60 Inches per hour​

Answers

Answer:

0.26 per Hour

Step-by-step explanation:

0.26x2=0.52

0.26/2=0.13

0.52+0.13=0.65

0.65 is the closest to your question

you deposit $1050 into an account that pays 7.25% interest per year. find the amount after six year given the following: a) compounded semiannually b) compounded monthly

Answers

Answer:

semiannually = $1609.77

monthly = $1128.71

Step-by-step explanation:

Can you please help me

Answers

Answer:

Each term in pattern X is 1/3 of the corresponing

in patter Y

Step-by-step explanation:

5 is 1/3 of 15

Answer:

the answer would be the top left one, because if you look at the X and times it by 3 you will get the Y

Step-by-step explanation:

0×3=0

5×3=15

10×3=30

15×3=45

20×3=60

that is what I think it is

A graph of a system of two equations is shown. HELP!!!!!

Answers

Answer:

8 and 2

Step-by-step explanation:

8 and 2 because y=5x +3 would be 5+3 which is 8 and y= 3x - 1 would be 3 - 1 which equals 2.

What is the volume of the sphere in terms on pie?
(Answer only with correct answers no links)

Answers

Answer:

The answer is A.

Step-by-step explanation:

Formula = 4/3pir^3

Diameter = 3

Radius = 3/2 = 1.5

Using the formula

1.5^3 = 3.375

3.375 * 4/3 = 4.5

Volume = 4.5 pi yd^3

Consider the equation y=97x+8000, what is the y-intercept?

Answers

Answer:

8000

Step-by-step explanation

In a school with 2,000 students, 250 are athletes. Of those athletes, 120 lift weights in addition to participating in their primary sport. Thirty-seven athletes lift weights as their primary sport. The newspaper wants to select five athletes at random from the school to interview. What is the population size?

A.) 37
B.) 120
C.) 250
D.) 2,000

Answers

Answer:

c

Step-by-step explanation:

A bag contains 8 red pens, 7 blue pens, and 14 black pens. Denato wants to pull a blue pen from the bag. What is the sample space for this experiment?

Answers

Answer:

The sample space is 29........

Express as a trinomial.
(2x – 9)(3x +4)

Answers

Answer:

5x^2-19x-36

Step-by-step explanation:

(2x)(3x) + (2x)(4) - (9)(3x) - (9)(4)

5x^2 + 8x - 27x - 36

5x^2 - 19x - 36

Expression as a trinomial is  6x² -19x -36.

What is a quadratic function?

A polynomial function with one or more variables, where the largest exponent of the variable is two, is referred to as a quadratic function. In other terms, a "polynomial function of degree 2" is a quadratic function.

Given:

An expression,

(2x – 9)(3x +4).

To express as a trinomial:

(2x – 9)(3x +4),

= 6x² -27x + 8x -36

= 6x² -19x -36

Trinomial is a quadratic function.

Therefore, as a trinomial is 6x² -19x -36.

To learn more about the quadratic function;

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1. Find the area of the composite figure to the nearest hundredth.
55 mm
32.5 mm
12.5 mm
12.5 mm
total area =
mm?

Answers

Answer:

[tex]745.45 mm^{2}[/tex]

Step-by-step explanation:

(semicircle) A1 = 245.45 mm

(rectangle) A2 = 312.5 mm

(triangle) A3 = 187.5 mm

Formula for semicircle = [tex]A = \frac{1}{2} \pi r^{2}[/tex]

[tex]\frac{1}{2}\pi 12.5^{2} = 78.13\pi = 245.45 mm[/tex]

Formula for rectangle = [tex]A = lw[/tex]

[tex]25 x 12.5 = 312.5 mm[/tex]

Formula for triangle = [tex]A = \frac{1}{2} bh[/tex]

[tex]\frac{1}{2} 30(12.5) = 187.50mm[/tex]

Now we add them all up to get our answer

[tex]245.45 + 312.5 + 187.5 =745.45mm^{2}[/tex]

The area of the composite figure is 741.31 mm².

What is area?

The area of any object is given by the space covered by it.

Given is a composite figure having shapes, a semicircle, a triangle and rectangle,

We need to find the area of the composite figure,

So, to find the same we will find the areas of the figure and then add them,

So,

Area of a semicircle = π × radius² / 2
= 3.14 × 12.5² / 2

= 245.31 mm²

Area of a triangle = 1/2 × base × height

= 1/2 × 12.5 × 30

= 187.5 mm²

Area of a rectangle = length × width

= 12.5 × 25

= 312.5 mm²

Now, the whole area = 245.31 + 187.5 + 312.5 = 741.31 mm²

Hence the area of the composite figure is 741.31 mm².

Learn more about area click;

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What is the area of the circle? I need help please!

Answers

Answer:

Area is π(Pi) × Radius².

Soo, 3,14×5×5=78,54

I hope this is right

What is the scale factor of the dilation?
Parallelogram FGHJ was dilated and translated to form
similar parallelogram FG'H'J'.
1. 1/8
2. 1/4
3. 4
4. 8

Answers

Answer:

3

Step-by-step explanation:

Can anyone help me with 6? Please

Answers

Answer:   (2)

Step-by-step explanation:  y=18(0.75)  0.75 as a percent is 75%, kind of like what would happen in the graph with the mathematical term Pneumonoultramicroscopicsilicovolcanoconiosis.

A basketball team wants to see if its fans like its new uniforms. Which description represents a population?
A basketball team wants to see if its fans like its new uniforms. Which description represents a population?

A. children who root for the team
B. season ticket holders
C. employees who work for the basketball team
D. fans of the basketball team

Answers

Answer:

xd

Step-by-step explanation:

xd

se pone primero la x y despues la d, se dice gracias crick

3 + 2a - 7x + 2.5 + 5x
help pls and thank u

Answers

Answer:

2 a − 2 x + 5.5

Step-by-step explanation:

Answer:

5.5+2a_2x

Step-by-step explanation:

we add the numbers 3+2.5

The area of a rectangle is 8w + 18 square feet. The length of the rectangle is 2 feet. Use factoring to write an expression to represent the width of the rectangle.

Answers

Answer:

The expression that represents the width of the rectangle is 4w + 9

Step-by-step explanation:

The formula of the area of the rectangle is A= length x width

The area of a rectangle is 8w+18 square feet.

A= 8w+18

The HCF of 8 and 18 is 2

Divide each term of the area by 2 to get 2 as a common factor

8 /2 =4 and 18 /2 = 9

A=2(4w+9)

The length of the rectangle is 2 feet

Substitute it in the formula of the area above

A=2 x width

A=2 width

Equate the two right sides of the area

2 width =2(4w+9)

Divide both sides by 2

The width = 4w+9

Find the discount savings on a bicycle that originallycosts $230 but is on sale for 40% off. Show yourwork.

Answers

Answer:

You would save 92$

Step-by-step explanation:

Discount = Original Price x Discount 40/100

Discount = 230 × 40/100

Discount = 230 x 0.4

You save = $92.00

Final Price = Original Price - Discount

Final Price = 230 - 92

Final Price = $138.00

Hope this helps

Solve the quadratic equation by factoring.
4x² - 20x + 28 = 3

A) x = 5
B) x = 5/2
C) x = 2/5
D) x = - 5/2

Answers

Answer:

B)  x = 5/2

Step-by-step explanation:

subtract 3 from each side to get:

4x² - 20x + 25 = 0

this is the difference of 2 squares:

(2x -5)² = 0

one solution, x = 5/2

Answer:

B)  x = 5/2

Step-by-step explanation:

4x² - 20x + 28 = 3

Move terms to the left side

4x² - 20x + 28 - 3 = 0

Subtract the numbers

4x² - 20x + 25 = 0

Use the quadratic formula

[tex]x =\frac{-b+\sqrt{b^{2}-4ac } }{2a}[/tex]

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

4x² - 20x + 25 = 0

a = 4

b = -20

c = 25

x = [tex]\frac{-(-20)+\sqrt{(-20)^{2}-4x4x25 } }{2x4}[/tex]

Evaluate the exponent

x = [tex]\frac{20+\sqrt{400-4x4x25 } }{2x4}[/tex]

Multiply the numbers

x = [tex]\frac{20+\sqrt{400-400 } }{2x4}[/tex]

Subtract the numbers

x = [tex]\frac{20+\sqrt{0} }{2x4}[/tex]

Evaluate the square root

x = [tex]\frac{20+0 }{2x4}[/tex]

Add zero

x = 20 / 2 x 4

Multiply the numbers

x = 20 / 8

Cancel terms that are in both the numerator and denominator

x = 5/2

Solve y=f(x) for x. Then find the input when the output is −3. f(x)=−7x−2 x= The input is when the output is −3.

Answers

Answer:

The input is 1/7

Step-by-step explanation:

If y =f(x)

Given that f(x) = -7x -2, then y = -7x-2

x is the input

y is the output

Given the output y = -3, we are to find the input value x

Recall that y = -7x-2

On substituting the value of y into the equation

-3 = -7x - 2

-7x = -3+2

-7x = -1

x = -1/-7

x = 1/7

Hence the input is 1/7

You are the owner of the biggest and newest roller coaster called the Gentle Giant. The roller coaster costs $6 to ride. The operator of the ride must pay $200 per day for the ride rental and $65 per day for a safety inspection. If you want to make a profit of at least $1,000 each day, what is the minimum number of people that must ride the roller coaster? Write an inequality that can be used to find the minimum number of people, , which must ride the roller coaster each day to make the daily profit.

Answers

Answer:

Inequality: 6r - 200 - 65 [tex]\geq[/tex] 1000  and minimum of 211 people

Step-by-step explanation:

Let r = rides

6r - 200 - 65 [tex]\geq[/tex] 1000

6r - 265 [tex]\geq[/tex] 1000

6r [tex]\geq[/tex] 1265

r [tex]\geq[/tex] 210 [tex]\frac{5}{6}[/tex]

Needs 211 people to make a profit of at least $1000

❤️❤️Помогите❤️❤️!!!!

Answers

Answer:

i dont understand russian

Step-by-step explanation:

Find the arithmetic and the geometric means of 5 and 125

Answers

Answer: The geometric mean of 125 and 5 is 25

Answer:

Arithmetic Mean: 65

Geometric Mean: 25

Step-by-step explanation:

Arithmetic Mean Formula: Sum / # of values

(5 + 125) / 2

130 / 2

65

Geometric Mean Formula: √Product of the values

√(5*125)

√625

25

HELP PLEASE I WOULD REALLY BE THANKFUL IF YOU HELP, I'VE BEEN STUCK ON THIS

Answers

Answer:

Median Range IQR

Northside players. 37 33. 17

Southside players. 37. 43. 30

Pleaasseee helppppp.

Answers

Answer:

180+12x

Step-by-step explanation:

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