1 year ago

Super confused need help

Mathematics

1 answer:

Ainat [17]1 year ago

7 0

Round off to the nearest 100

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How many different 3-digit PIN codes are there that only include the digits 7, 4, 3 and 2?

KengaRu [80]

Answer:

Step-by-step explanation:

We can use the product rule of counting to answer this:

There are 4 possibilities for the 1st digit
There are 4 possibilities for the 2nd digit
There are 4 possibilities for the 3rd digit
So we use the product rule of counting to give us:

4×4×4=64

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2 years ago

What is the constant in the expression 8x + 7x

olga55 [171]

Answer:

15x

Step-by-step explanation:

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3 years ago

If y = 124 and x = 12, find y when x = -24.

tatyana61 [14]

Answer:

y = -248

Step-by-step explanation:

Hi there!

Set up a proportion:

$\displaystyle\frac{124}{12} =\frac{y}{-24}$

Cross-multiply:

$12y=(-24)(124)\\12y=-2976\\y=-248$

I hope this helps!

7 0

2 years ago

Property being illustrated 73=0+73

Bad White [126]

Answer:

yes???

Step-by-step explanation:

your question either doesn't make sense or I just don't know

8 0

2 years ago

Can someone help me out

seraphim [82]

A is addition
b is subtraction
c is division

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2 years ago