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2 years ago

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

Mathematics

1 answer:

valina [46]2 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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7-14m=2m=5 please help

Firdavs [7]

Answer:

M=1/6

Step-by-step explanation:

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3 years ago

Order of operations- what does each letter represent? P, D, M, A, S

allsm [11]

P, D, M, A, S.

P: Parenthesis

D: Divide

M: Multiply

A: Add

S: Subtract

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3 years ago

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Find the value of a and b if root3-1/root3+1+ root3+1/root3-1=a+root3 b

Digiron [165]

Answer:

a=4 and b = 0

Step-by-step explanation:

Given : $\dfrac{\sqrt 3 -1}{\sqrt 3+1}+\dfrac{\sqrt 3+1}{\sqrt 3-1}=a+\sqrt 3 b$

To find, The value of a and b

Solution,

Solving LHS of the given equation,

$\dfrac{(\sqrt 3-1)^2+(\sqrt3+1)^2}{(\sqrt 3+1)(\sqrt 3-1)}=a+\sqrt 3 b$

Since,

$(a-b)^2=a^2+b^2-2ab\\\\(a+b)^2=a^2+b^2+2ab\\\\(a-b)(a+b)=a^2+b^2$

So,

$\dfrac{3+1-2\sqrt 3+3+1+2\sqrt 3}{3-1}=a+\sqrt 3 b\\\\4=a+\sqrt 3 b$

$4+0=a+\sqrt 3 b$

On comparing we get :

a = 4 and b = 0

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3 years ago

Which angles are corresponding angles?

Reptile [31]

Answer:

1 and 3

15 and 13

15 and 7

1 and 9

Step-by-step explanation:

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3 years ago

2x 26<br> Please I need help I am failing math !!

almond37 [142]

Answer:

2*26=52

Step-by-step explanation: you can just use a calculator to find 2*26 and you will find that the answer to your question is 52.

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3 years ago

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