MATHEMATICS MIDDLE SCHOOL

1+4=5
2+5=12
3+6=21
8+11=?

Answers

Answer 1
Answer: Nice question! The rule is:

a + b = a(b + 1)

So...

1 + 4 = 1(4 + 1) = 1(5) = 5

2 + 5 = 2(5 + 1) + 2(6) = 12

3 + 6 = 3(6 + 1) = 3(7) = 21

8 + 12 = 8(12 + 1) = 8(13) = 104

The answer is 104.

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Alena is packing a box that has a height of one inch more than the width and a length of three inches more than the width, as shown in the diagram below. Write a polynomial expression, In simplified form, that represents the volume of the box.(I need help...)

Answers

Answer:

The polynomial that represent the volume of the box is V=(x^(3)+4x^(2)+3x)\ in^(3)

Step-by-step explanation:

we know that

The volume of the box is equal to

V=LWH

we have

L=(x+3)\ in

W=x\ in

H=(x+1)\ in

substitute in the formula

V=(x+3)(x)(x+1)\nV=(x^(2) +3x)(x+1)\nV=x^(3)+x^(2) +3x^(2) +3x\n V=(x^(3)+4x^(2)+3x)\ in^(3)

Aiden wants to find the mass of a bowling ball. which unit should he use?

Answers

he should use pounds!
because we know that bowling balls are not light enough to use ounces or grams. And they are not heavy enough to use tons. Usually when you go to bowling alleys they have different bowling balls because they all weigh different pounds :D
i hope this makes sense lol 
have a good one

merry christmas

Answer:

grams

Step-by-step explanation:

Round 8923 to the thousands

Answers

Answer:

9000  

Step-by-step explanation:

To  round a number to the nearest thousand, you look at the number in the hundreds place.

If the number in the hundreds place is

  • greater than 5, you add 1 to the number in the thousands place
  • less than 5, you keep the number in the thousands place
  • exactly 5 with only zeros following it, you round the number in the thousands place to the nearest even number

Here's how to round 8923 to the nearest thousand.

  1. The digit in the thousands place is the 8.
  2. The number in the hundreds place (8) is greater than 5.
  3. Add 1 to the digit in the thousands place.

The rounded number is 9000.

Answer:

9000

Step-by-step explanation:

When you are rounding to the thousands, if the hundreds place is 500 or greater you have to round up in the thousands place.

That would mean 8923 rounded to the thousands place would equal 9000

Hope This Helps!

What is 32 divided by 5.98

Answers

5.351 is the answer or 5.3117056856 is the non rounded answer 
5.341, hope this helps you!

What is a unit of area with dimensions 1unit x 1unit x 1unit= ?

 

Answers

Volume is measured in cm3

Thus, V = l x w x h = 1 u x 1 u x 1 u = u3


They relate because they can  be converted into a power of 10. For instance
! L = 1000cm3
1 ml = 1cm3

What's the ratio in simplest form 20/60

Answers

Answer: 1/3 is the simplest form.

Step-by-step explanation:

All I did was see if 60 could be divided into 20, and it can.

60 divided by 20 = 3

Now I have to do the same with the 20.

20 divided by 20 = 1

Now I have 1/3.

Thats how I solved it.

Hope that helps!
1/3 is the answer or in decimal it is 0.3
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