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FromTheMoon [43]
3 years ago
9

Is the ordered pair (5,2) a solution to the equation x+2y=9. Explain.

Mathematics
1 answer:
valina [46]3 years ago
5 0

Answer:

Yes.

Step-by-step explanation:

You are going to put the y coordinate where the y is in the problem.

Ex. x+2(2)=9

Now you will have x+4=9

The you'll put the x coordinate where the x is in the problem.

Ex. 5+4=9

5+4=9 is correct, so yes it is the solution to the equation.

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Help pls, answer choices listed also
viktelen [127]

Answer:

A.

Step-by-step explanation:

Hi there!

By factoring the trinomial, we end with (x-9)(x-4)

However, we aren’t done yet. To find the zeros, set each expression equal to zero, so it looks something like this.

0 = x - 9

0 = x - 4

Using orders of operations, x = 9 and x = 4

Therefore,  A is your answer.

I hope this helps!

5 0
3 years ago
Real life Applications of Polynomials?
ahrayia [7]

Since polynomials are used to describe curves of various types, people use them in the real world to graph curves. For example, roller coaster designers may use polynomials to describe the curves in their rides. Combinations of polynomial functions are sometimes used in economics to do cost analyses.

-Shin ( and no need to thank me vote and give brainliest if you want, because i only wanna help! )

3 0
4 years ago
HELPPPP I need this for a math quiz for my grade
Natasha2012 [34]

Answer: use photo math if u are virtually

Step-by-step explanation:

8 0
4 years ago
The lengths of three
True [87]

Answer:

90 cm, 180 cm, 240 cm

Step-by-step explanation:

Let the lengths of sides of the triangle be 3x, 6x and 8x

\therefore \: 3x + 6x + 8x = 5.1 \: m \\ \therefore \: 17x = 510 \: cm \\ \therefore \: x =  \frac{510}{17}  \\  \therefore \:x = 30 \: cm \\  \implies \\ 3x = 3 \times 30 = 90 \: cm \\ 6x = 6 \times 30 = 180 \: cm \\ 8x = 8 \times 30 = 240 \: cm

Hence, lengths of the sides of the triangle are 90 cm, 180 cm and 240 cm.

4 0
3 years ago
Every 9 out of 12 were chosen
katrin2010 [14]
I don’t understand your question
7 0
3 years ago
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