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Anton [14]
3 years ago
15

How do I express four less than the square number

Mathematics
2 answers:
netineya [11]3 years ago
5 0

Answer:

x^2 - 4

Step-by-step explanation:

Number squared (x)^2

less than is a subtraction term

put them together you get x^2 - 4

kobusy [5.1K]3 years ago
4 0

Answer:

X^2-4

Step-by-step explanation:

Let x be our number.

So we square the number because it says 4 less than the square number.

So we have x^2.

Now, we have to take 4 less than that.

So x^2-4 is our answer.

(This can also be factored because it is in the form a^2-b^2)

(This can be rewritten as (x+2)(x-2))

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How many natural numbers N have the property among 1,2,..........,N exactly 30% are divisible by 3?
k0ka [10]

Answer:

The answer is B. 2.

Step-by-step explanation:

We know that for N = 1 and N = 2, none of them are divisible by 3.

For N = 3, 33.33% are divisible by 3.  For N = 4, 25% (which is already less than 30%), so N = 5 would also be less.

At N = 6, we're back up to 33.33%.  N = 7 is already less than 30%.

At N = 9, you guessed it, 33.33%.  N = 10 is 30% (3, 6, and 9).  So we have one case.

Moving along, at N = 18, 33.33%.  N = 20 is again 30% (3, 6, 9, 12, 15, and 18).  Two cases now.

Finally, at N = 21, again 33.33%.  N = 22 and N = 23 are both greater than 30%.  As we continue this, for any N after 20, we will always be greater than 30%.

4 0
3 years ago
Which statement correctly compares two value?
tresset_1 [31]

Answer:

The value of the 5 in 50.89 is 100 times the value of the 5 in 261.58

Step-by-step explanation:

The 5 in 50.89 is in the 10's place

The 5 in 261.58 is in the 1/10's place

1/10(100) = 10

6 0
3 years ago
Abigail's rectangular flower garden has a width of 4 1/4feet and an area of 12 3/4 square feet.
tresset_1 [31]

Answer:

3 feet long

Step-by-step explanation:

4 1/4x3=12 3/4

6 0
3 years ago
Two numbers, a and b, have a sum of 24. The
mina [271]

Answer:

a= -12 and b=36

Step-by-step explanation:

a+b=24 and 3a+b

a-3a+b=24

-2a+b-b=24

-2a/-2=24/-2

a= -12

then substitute the value of a in a+b=24 to get the value of b

so let see -12+b=24

b=24+12

b=36

we can check it by the equation -2a+b-b=24

-2(-12)+36-36=24

24=24 so as you have seen the answer is correct

thanks!!!

7 0
2 years ago
1:30 o clock in words​
Mashutka [201]
It would be one-thirty o clock

Hope this helps

Have a great day/night
4 0
3 years ago
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