1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zhannawk [14.2K]
3 years ago
7

What is the sum of 8.4*10^8 and 4.2*10^7 written in scientific notation?

Mathematics
1 answer:
anyanavicka [17]3 years ago
5 0
(8.4*10^8) + (4.2*10^7)

= 882,000,000
= 8.82*10^8

Hope it helped :)
You might be interested in
7. The following clues are given about a bucket of bubble gum.
scZoUnD [109]

There were 472 pieces of bubble gum in the bucket

Step-by-step explanation:

The following clues are given about a bucket of bubble gum

1. There are between 400 - 500 pieces of gum in the bucket

2. The bubble gum was purchased in 4 equally-sized bags

3. The product of all the digits is 56

Let us explain how to solve the problem

∵ The number of the pieces of gum is between 400 and 500

∴ The number of pieces is 3-digit number and its hundred digit is 4

∵ The product of all digits is 56

∵ One of the digit is 4

∵ 56 ÷ 4 = 14

∴ The product of the ten digit and the one digit is 14

∵ 14 = 2 × 7

∴ The ten digit and the one digit are 2 and 7 or 7 and 2

- If the ten digit is 2 and the one digit is 7

∴ The number of pieces is 427

∵ The bubble gum was purchased in 4 equally-sized bags

- That means there were 4 pieces of bubble gum in each bag

∴ The number of pieces must divisible by 4

- The number is divisible by 4 if it is an even number and the number

 formed from the ten digit and one digit is divisible by 4

∵ 427 is an odd number

∴ 427 not divisible by 4

- If the ten digit is 7 and the one digit is 2

∴ The number of pieces is 472

∵ 472 is an even number

∵ 72 divisible by 4

∴ 472 is divisible by 4

∴ There are 472 pieces of gum in the bucket

There were 472 pieces of bubble gum in the bucket

Learn more:

You can learn more about digits in brainly.com/question/547255

#LearnwithBrainly

7 0
4 years ago
A square has a perimeter of 100 square meters. What is the perimeter of the square
inna [77]
You mean a square has an AREA of 100 square meters?
The length of 1 side equals square root of 100 = 10 meters.
Therefore perimeter = 4 * 10 = 40 meters.


3 0
3 years ago
Read 2 more answers
Help please!!!!!! and explanation if possible
loris [4]
The correct answer is 3



the triangle sides are equal. so :
4x - 1 = 2x + 5 \\ 4x - 2x = 1 + 5 \\ 2x = 6 \\ x =  \frac{6}{2}  = 3



good luck
6 0
4 years ago
An 8-meter roll of blue ribbon costs $5.12. What is the unit price?<br> per meter<br> Submit
ivann1987 [24]

Answer:

$0.64

Step-by-step explanation:

Unit price is the cost of a single metre of ribbon

5.12/8=0.64

7 0
3 years ago
The perimeter of a rectangle is 162 inches. what are the dimensions of the rectangle if the length is 7 times than 3 times the w
ankoles [38]

Answer:

3.68 inches × 77.28 inches

Step-by-step explanation:

Given that,

The perimeter of a rectangle is 162 inches.

Let the width is b.

ATQ,

Length = 7 times than 3 times the width

l = 7(3b) = 21b ...(1)

The perimeter of a rectangle is given by :

P = 2(l+b)

Put all the values,

162 = 2(21b+b)

81 = 22b

b = 3.68 inches

Put the value of b in equation (1)

l = 21b

= 21 (3.68)

= 77.28 inches

Hence, the dimensions of the rectangle are 3.68 inches × 77.28 inches

7 0
3 years ago
Other questions:
  • How do I solve: 3w/x=6e
    5·1 answer
  • Graph the following equation
    11·1 answer
  • In 2005, the UT Longhorns scored 15 times to win the Big 12 Championship Game 70-3. All of their points came from touchdowns (6
    15·1 answer
  • What is the taxidistance between A (1,5) and B (6,2)?<br><br>A. 1<br>B. 2 <br>C. 8<br>D. 14
    6·1 answer
  • Joe has read 30% of a book. He has 49 more pages to finish. How many pages are there in the book?
    14·1 answer
  • Solve for x the triangles are the same
    7·1 answer
  • baa baa the black sheep had 7 pounds of wool if he separated the wool equally into 3 bags how much wool would be in 2bags
    12·1 answer
  • Misaki’s fish tank is half full of water because she is cleaning it. The tank is a right rectangular prism with a length of 8 in
    11·2 answers
  • 1. Choose the correct math expression for: 36 minus the quotient of a and 4.
    14·1 answer
  • Giving brainliest to someone earning it
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!