What is the expanded form of 430,290,100

Mathematics

2 answers:

Alisiya [41]4 years ago

7 0

You would break each part down as if it was an addition problem....
400,000,000+30,000,000+200,000+90,000+100

mariarad [96]4 years ago

3 0

So,

When you write a number in expanded form, you separate each non-zero digit and write it according to its place value.

430,290,100

400,000,000
30,000,000

We don't put anything for the millions place because there are none.

200,000
90,000
100

Then we join each of them with a plus sign.

400,000,000 + 30,000,000 + 200,000 + 90,000 + 100

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The product of two numbers is 36 and their sum is 37. What is their difference?

hichkok12 [17]

Hello,
Let's be a the greatest number, b the smallest

Method 1:

a+b=37 ==>b=37-a
a*b=36==>a(37-a)=36
==> a²-37a+36=0
==>a²-36a-a+36=0
==>a(a-36)-(a-36)=0
==>(a-36)(a-1)=0
(a=36 and b=37-36=1) or (a=1 and b=37-1=36) but a>b ==>exclude
==>a-b=35

Method 2:

a*b=36
a+b=37 ==>(a+b)²=37²
(a+b)²-4ab=37²-4*36
==>a²+2ab+b²-4ab=1225
==>(a-b)²=35²
==>a-b=35 or a-b=-35 (to exclude since a>b)

7 0

3 years ago

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ra1l [238]

Answer:

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4 years ago

Factor each by using the GCF. a) 36x+81 b) 24a+36

nydimaria [60]

The Greatest Common Factor (GCF) is very important when factoring. Later on, you will forget to pull out a GCF and the answer will be wrong. Always look for a GCF before doing anything.

Let's try factoring these:

a.) $36x+81$