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kati45 [8]
3 years ago
14

Which shows a perfect square trinomial? 50y^2-4x^2 100-36x^2y^2 16x^2+24xy+9y^2 49x^2-70xy+10y^2 ~ please answer, i will mark br

ainliest ~
Mathematics
2 answers:
kompoz [17]3 years ago
5 0

Answer:

3. 16x^2+24xy+9y^2

Step-by-step explanation:

<em>A perfect square trinomial has the form of:</em>

<em>a^2+2ab+b^2= (a+b)^2</em>

<u>Let's see which of the given is equivalent to perfect square</u>

1. 50y^2-4x^2

No, this is not a trinomial

2. 100-36x^2y^2

No, this is not a trinomial

3. 16x^2+24xy+9y^2 = (4x)^2 + 2*4x*3y+ (3y)^2 = (4x+3y)^2

Yes, this is a perfect square

4. 49x^2-70xy+10y^2= (7x)^2- 2*7x*10y + 10y^2

No, this is a trinomial but not a perfect square because 10y^2 is not equal to (10y)^2

As per above, the answer is the 3rd choice

frosja888 [35]3 years ago
3 0

Answer:

C

Step-by-step explanation:

the answer is c, hope this helped :)

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A recipe for making 3 dozen muffins requires 1 1/2 cups of flour. How many cups of flour are required to make 5 dozen of the sam
Scilla [17]

Answer:

2 1/2 cups

Step-by-step explanation:

3 dozen muffins = 1 1/2 cups

divided by 3, you get 1 dozen muffins = 1/2 cup of flour

multiply by 5 you get 2 1/2 cups of flour

7 0
2 years ago
20a + 158 +6c = 20 (6) + 15 (4) + 6(8)<br> +<br> ?<br> +<br> ?
Jobisdone [24]

Step-by-step explanation:

20a + 158+6c=you will expand the brackets

= so it is 120+60+48

20a+158+6c=120+60+48

20a+ 6c=120+60+48-158

20a+6c=70

20a divide by 20+6c divide by 6 on both side

a + c = 0.58

7 0
2 years ago
In a particular year, the United States had a national debt of 1.1 x 1013 U.S. dollars.
kolezko [41]
The answer is to your question is 100:1
4 0
3 years ago
What is 500 rounded to the nearest hundred
rosijanka [135]

Answer: 500

Step-by-step explanation:

The reason why it's 500 because it's already been rounded. 500 stays as 500 bc numbers 4 and below goes down to 0 when rounding. When rounding 0-4 with just the ones place it stays the same.

3 0
3 years ago
2. Write a quadratic function that has -intercepts (- 3, 0) and (4, 0) and passes through the point (5, 8)
Reptile [31]

Answer:

f(x)=x^2-x-12

Step-by-step explanation:

<u>Quadratic Function</u>

Standard Form of Quadratic Function

The standard representation of a quadratic function is:

f(x)=ax^2+bx+c

where a,b, and c are constants.

When the zeros of f (x1 and x2) are given, it can be written as:

f(x)=a(x-x1)(x-x2)

Where a is a constant called the leading coefficient.

We are given the two roots of f: x1=-3 and x2=4, thus:

f(x)=a(x+3)(x-4)

We also know that f(5)=8, thus:

f(5)=a(5+3)(5-4)=8

Operating:

a(8)(1)=8

Solving:

a=1

The function is:

f(x)=1(x+3)(x-4)

Operating:

\boxed{f(x)=x^2-x-12}

5 0
2 years ago
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