What is 2.1 x 10^4written in standard form is

Answers

Answer 1

Answer:

21000

Step-by-step explanation:

You move the decimal point over that many times as the power of 10.

Answer 2

IT is found that [tex]2.1 \times 10^4[/tex] can be written in standard form as 21,000.

Since Scientific notations have some of the profits are Better readability due to compact representation

The value in terms of power of 10 is known, which helps in easy comparison of quantities differing by a large value.

To convert from scientific notation to standard form, we simply move the decimal point to the right by the number of places indicated by the exponent (4 in this case).

Starting with  [tex]2.1 \times 10^4[/tex] , we move the decimal point four places to the right to get 21,000.

Hence,   [tex]2.1 \times 10^4[/tex] in standard form is 21,000.

Learn more about scientific notation here:

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Related Questions

Express sin I as a fraction in simplest terms 28 21

Answers

Answer:

4/3

Step-by-step explanation:

First, you need to find the greatest common factor between the numerator and denominator. Then you divide the numerator and denominator by thetheir greatest common factor in order to simplify the fraction.

Hilary was scuba diving. She was 30 feet below the surface when she swam toward the dive platform. She dropped her camera when she was 10 feet from the surface and had to swim down 15 feet to get it. At what elevation did Hilary retrieve her camera? Negative 10 feet Negative 15 feet Negative 25 feet Negative 30 feet

Answers

Answer:

She picked up her camera at -25ft

Step-by-step explanation:

Given

[tex]Initial\ Position = -30ft[/tex]

Required

Determine the position she retrieved her camera

The position where she dropped her camera is given as:

[tex]Position = -10ft[/tex]

She swim down 15ft;

So, the nee position is

[tex]New\ Position = -10ft - 15ft[/tex]

[tex]New\ Position = -25ft[/tex]

Hence; She picked up her camera at -25ft

Note that: Negative signs represent that she is below the sea level

Answer:

C

Step-by-step explanation:

Hilary was scuba diving. She was 30 feet below the surface when she swam toward the dive platform. She dropped her camera when she was 10 feet from the surface and had to swim down 15 feet to get it. At what elevation did Hilary retrieve her camera?

-25feet

in the rectangle below, AC=48 units. what is DE

Answers

The answer for DE is, DE: 0.5 x 48 = 24

HELP ASAP!!! BRAINLIEST!!! Write a cubic function whose graph passes through the given points.
(-1,0) (0,2) (2,0) (1,0)

Answers

f(x) = (3/16)(x+4)(x-4)(x-2)

Does this help?

Write an explicit formula for a_na n ​ , the n^{\text{th}}n th term of the sequence 6, 12, 18, '

Answers

Here , we need to find a formula for nth term of the sequence 6 , 12 , 18 , .....

Now , here if you notice carefully ,then you can notice that 12 - 6 = 6 and 18 - 12 = 6 , So the given sequence is an AP ( Arithmetic Progression ) with common difference being 6 , first term being 6 , so now as we know that :

[tex]{\boxed{\bf{a_{n}=a+(n-1)d}}}[/tex]

Where , [tex]\bf a_n[/tex] is nth term of AP , [tex]\bf a[/tex] being first term while [tex]\bf d[/tex] is the common difference . So , now putting the values in above formula ;

[tex]{:\implies \quad \sf a_{n}=6+(n-1)6}[/tex]

[tex]{:\implies \quad \sf a_{n}=6+6n-6}[/tex]

Cancelling 6 will yield :

[tex]{:\implies \quad \bf \therefore \quad \underline{\underline{a_{n}=6n}}}[/tex]

Henceforth , nth term of the sequence is 6n

Solve x-4<3. Graph the solution

Answers

Step-by-step explanation:

I hope this helps you on your question

Find the slope of the line that passes through (10,-8) and (1, 12).

Answers

Answer:

m= -20/9

Step-by-step explanation:

Solve for m.

m/10 - 1/2 = 1/5

Answers

m is equal to 7

Step-by-step explanation:

trust me bro

Answer:

m=7

Step-by-step explanation:

[tex]\frac{m}{10}-\frac{1}{2}=\frac{1}{5}[/tex]

[tex]\mathrm{Add\:}\frac{1}{2}\mathrm{\:to\:both\:sides}[/tex]

[tex]\frac{m}{10}-\frac{1}{2}+\frac{1}{2}=\frac{1}{5}+\frac{1}{2}[/tex]

[tex]\mathrm{Simplify}[/tex]

[tex]\frac{m}{10}=\frac{7}{10}[/tex]

[tex]\mathrm{Multiply\:both\:sides\:by\:}10[/tex]

[tex]\frac{10m}{10}=\frac{7\cdot \:10}{10}[/tex]

[tex]\mathrm{Simplify}[/tex]

[tex]m=7[/tex]

~Learn with Lenvy~

Just solve for 50 points and brainliest!

10-5+3=

6-4+10=

Answers

Answer:

10-5+3=8

Step-by-step explanation:

6-4+10=12

Answer:

number 1 - 10-5+3=8

number 2 - 6-4+10=12

For which polygon is the sum of the exterior angles equal to 360o?.

Answers

Answer:

equiangular polygons

Step-by-step explanation:

The sum of exterior angles in a polygon is always equal to 360 degrees. Therefore, for all equiangular polygons, the measure of one exterior angle is equal to 360 divided by the number of sides in the polygon.

Some decimals are rational numbers and some are irrational. Which decimal does NOT represent a rational number?
A. 1.25
B. 1.22222...
C. 0.555555
D. 6.01001000100001...

Answers

Answer:

D

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Which statement below is false about equations and inequalities?

A. Equations have one solution, while inequalities have multiple.

B. The solution(s) to an equation or inequality can be graphed on a number line.

C. Equations and inequalities have multiple solutions.

D. Equations and inequalities are solved the same way.

Answers

the answer is C

have a nice day ☀︎︎

What is the area of the triangle?
4
6
units?

I NEED HELP

Answers

Answer:

12 centeters squared (cm^2)

Step-by-step explanation:

Area of a triangle is 1/2(base x hieght),

6 is h & 4 is b.

I need help plzzz
ASAP plzz

Answers

Answer:

25

Step-by-step explanation:

I hope this helps, and good luck!

Answer: 20

There are 1,000 milliliters in 1 liter. You have 50 milliliters. So 1,000 / 50 = 20.

Janet has 3 cube-shaped boxes. Each box has a side length of 10 inches. What is the minimum amount of wrapping paper needed, in square feet, to wrap all 3 boxes

Answers

Answer:anyone here watch anime

Step-by-step explanation:

EREN JEAGER

The minimum amount of wrapping paper needed, in square feet, to wrap all 3 boxes is  12.5 square feet.

Side of each cube = 10 inches

Number of cubes =3

As we know The minimum amount of wrapping paper needed, in square feet, to wrap all 3 boxes will be the total surface area of all 3 boxes.

What is the total surface area of a cube?

The total surface area of a cube with side a is 6a².

So, the total surface area of a cube with a side of 10 inches will be 6*10² = 6*100 = 600 square feet.

So, the total surface area of 3 cubes with a side of 10 inches will be 600*3 = 1800 square inches.

As we know that 1 square inch = 0.00694444 square feet

So, 1800 square inches = 1800*0.00694444 = 12.5 square feet.

Therefore, the minimum amount of wrapping paper needed, in square feet, to wrap all 3 boxes is  12.5 square feet.

To get more about cubes visit:

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Help ASAP please!!!!!!!

Answers

i am pretty sure that it is the same thing just all the numbers are negative, i really hope that is right

help with quadratic equations ​

Answers

Answer:

Step-by-step explanation:

Discriminant = b² - 4ac

a = 3 ; b = 24  and c = 48

Discriminant = 24² - 4*3*49

                     = 576 - 576

                      = 0

As discriminant is 0, there is only 1 real root.

1,368 divided by 12. Please help

Answers

Answer:

114

Step-by-step explanation:

Answer:

114

Step-by-step explanation:

because desmos. com/ scientific

What is the value of n in the proportion below?
n/28=4/7
1
12
14
16

Answers

Answer:

16.

Step-by-step explanation:

Solution,

or , N/28 = 4/7

or N = 4 × 28 / 7 = 16.

Jenny is making a tie-dyed shirts for her class with her school colors

Answers

Answer:

2 ounces of yellow, six of  blue.

Step-by-step explanation:

If you teacher wants you to simplify put: yellow: 1, blue: 3

If not, put: yellow: 2, blue: 6

x2−10x+29=5
Step 1 of 2: Using the standard form ax2+bx+c=0 of the given quadratic equation, factor the left hand side of the equation into two linear factors.

Answers

Answer:

(x-6)(x-4) = 0

Step-by-step explanation:

Subtract 5 from both sides to make the equation equal to 0. You will get the equation x2-10x+24=0. Now think of two numbers that multiply to get 24 but add to get -10. These numbers are -6 and -4. The factors of x2 are x and x which multiply to get x2.  Now put two linear factors into parathesis to get (x-6)(x-4) = 0.

Find the missing number in this proportion. 9 = 18/32

Answers

Seems like they simplified the nine by dividing it by two, therefore divide the 32 by two as well and you get 16 so 9/16

The local newspaper has letters to the editor for 40 people if this is the number represents 5% of all the newspaper readers how many readers does the newspaper have. fill in the blanks

Answers

40/5= 8  8 is 1% of the total people, 1% x 100 = 100%

8 x 100 = 800 people

The answer to this question would be: The newspaper has Eight hundred  readers.

Part = Percent x Whole

40 = 5% x 800

Do the equation above to make sure your correct( it is) and if it doesn't come back to 40 then your math is incorrect and you have the incorrect answer

Do that with all math that your trying to find the whole for, its a helpful thing.

There are 300 kids who go to school 5/8 are intermediate 1/3 are junior the rest are primary

(from my call to teach grade 7 math fractions,decimals,percentages

Answers

Answer:

188 kids in intermediate, 100 juniors, and 13 children that attend primary school.

Step-by-step explanation:

K there are 300 kids.

5/8 are intermediate, so 5/8 * 300 = 187.5, you can't have half a kid, so we can round to 188 kids are intermediates.

1/3 are juniors, so 1/3 * 300 = 100 are juniors.

The rest are primary:

(1)-(5/8 + 1/3)= 1/24

Thus, 1/24 are primary students, so 1/24 * 300 = 12.5 and again we will round up to 13 children in primary classes.

I am not sure if this is answering your question since you don't specifically have one listed.

how to find the area of a cricle

Answers

Answer:

A=πr2

Step-by-step explanation:

radius is half a circle and pi is 3.14

Write the equation y=3/4x-4 in standard form

Answers

Answer:

-3x+4y=-16

Step-by-step explanation:

what’s the first 6 nonzero multiples of 12?

Answers

6 non zero multiple of 12 are 24,36,48,72,84,96.
12 24 36 48 60 72
you just multiply 12x1 12x2 12x3 and so on

A scientist studies a pod of humpback whales to determine the migration of humpback whales. What is the population?



Group of answer choices:

A. all whales

B. dolphins

C. all humpback whales

D. a pod of humpback whales

Answers

d . a pod of humpback whales ( sorry if it’s wrong )

Find the Area of the figure below, composed of a rectangle and a semicircle. The radius of the circle is shown. Round to the nearest tenths place.

Answers

By dividing the figure in a rectangle and a circle, we will see that the area of the composited figure is equal to 149.25 square units.

How to find the area of the image?

The area will be the area of the rectangle plus the area of the semicircle.

We can see that the width of the rectangle is equal to the diameter of the semicircle, and the radius of the semicircle is 5 units, so its diameter is:

2*5 = 10 units.

Then the rectangle measures 11 units by 10 units, then its area is:

A = 10*11 = 110 square units.

In another hand, for a semicircle of radius R the area is:

A = 0.5*3.14*R^2

In this case we have R = 5, replacing that we get:

A = 0.5*3.14*5^2 = 39.25 square units.

Adding these two we get:

Area = 110 square units + 39.25 square units = 149.25 square units.

If you want to learn more about areas, you can read:

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Number two please I need it real quick

Answers

Answer:

B

Step-by-step explanation:

When you add 2 of the sides together, they are always greater than the other

The answer is b because 15+ 9 is greater then 23 so yeah
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