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MariettaO [177]
3 years ago
9

What is 3y mean in a math problem

Mathematics
2 answers:
madreJ [45]3 years ago
6 0
It is a number that has a variable and the variable can change to anything that you multiply by the factor it sits with. So basically it’s a number (3) that multiplies by whatever y equals to.

Please mark this as the brainliest answer thank you !
elixir [45]3 years ago
4 0

Answer:

3y means 3 * y

Step-by-step explanation:

I think it is written as 3y instead of 3*y or 3 x y because, 3*y is a bit too cluttered, and 3xy or 3 x y means (Three times X times Y) because X is its own variable.

In other words, 3y means 3 times y

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Elina [12.6K]
1= 0.25
2=1.12
3= -075
4 0
3 years ago
What are the factors of
Veronika [31]

Step 1: Trying to factor as a Difference of Squares:

Factoring:  x²⁰⁰² - 1

Theory : A difference of two perfect squares,  A² - B²  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

A² - AB + BA - B² =

A²  - AB + AB - B²

 A² - B²

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check : 1 is the square of 1

Check: x²⁰⁰²  is the square of  x¹⁰⁰¹

Factorization is :       (x¹⁰⁰¹ + 1) × (x¹⁰⁰¹ - 1)

7 0
2 years ago
Find the partial fraction decomposition of x-3/x(x^2+3)
Setler [38]

Answer:

-1 / x + (x + 1) / (x² + 3)

Step-by-step explanation:

(x − 3) / (x (x² + 3))

There are two factors in the denominator, so split this into two fractions with unknown numerators:

A / x + (Bx + C) / (x² + 3)

Combine back into one fraction:

(A (x² + 3) + (Bx + C) x) / (x (x² + 3))

Now equate this numerator with the original:

A (x² + 3) + (Bx + C) x = x − 3

Ax² + 3A + Bx² + Cx = x − 3

(A + B) x² + Cx + 3A = x − 3

Match the coefficients:

A + B = 0

C = 1

3A = -3

Solve:

A = -1

B = 1

C = 1

Therefore, the partial fraction decomposition is:

-1 / x + (x + 1) / (x² + 3)

Here's a graph showing that the two are the same:

desmos.com/calculator/hrxfnijewh

3 0
3 years ago
In a recent year, 27.4% of all registered doctors were female. If there were 44,700 female registered doctors that year, what wa
Sophie [7]

Answer:

1,224,780

Step-by-step explanation:

44,700 × 27.4= 1,224,780

7 0
3 years ago
What’s this I don’t know
avanturin [10]

Answer:

C.

Step-by-step explanation:

its C.

7 0
2 years ago
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