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Natasha_Volkova [10]
4 years ago
9

Will give brainliest to person who answers

Mathematics
1 answer:
Trava [24]4 years ago
3 0
I believe the answer is A
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Y=2x+9 y=4x-9 Solve the system of equations.
Deffense [45]

Answer:

Your solution is (9, 27) or x = 9, y = 27

Step-by-step explanation:

y = 2x + 9

y = 4x - 9

We can see that both of these equations equal y, so we can set them equal to each other.

2x + 9 = 4x - 9

Add 9 to both sides.

2x + 18 = 4x

Subtract 2x from both sides.

18 = 2x

Divide both sides by 2.

9 = x

Now we want to find y. To do this, plug x = 9 back into one of the original equations.

y = 2(9) + 9

Multiply.

y = 18 + 9

Add.

y = 27

Your solution is (9, 27)

Check your answer by plugging x = 9 and y = 27 back into the original equations.

y = 2x + 9

27 = 2(9) + 9

27 = 18 + 9

27 = 27

y = 4x - 9

27 = 4(9) - 9

27 = 36 - 9

27 = 27

Your answer is correct.

Hope this helps!

3 0
3 years ago
Read 2 more answers
Help!!!!! This is only a review!!!!!! Question is on image below.
solmaris [256]
No, the ratios aren’t equivalent
6 0
3 years ago
Simplify the problem: Sin theta Sec Theta
kherson [118]

Answer:

\tan \theta

Step-by-step explanation:

We have to simplify the following expression as given by

\sin \theta \times \sec \theta

= \frac{\sin \theta}{\cos \theta}

= \tan \theta ( Answer )

Because, we know that \sec \theta =\frac{1}{\cos \theta} and \tan \theta = \frac{\sin \theta}{\cos \theta}

If we consider \sin \theta = \frac{Perpendicular}{Hypotenuse} and \sec \theta = \frac{Hypotenuse}{Base},

then \sin \theta \times \sec \theta = \frac{Perpendicular}{Hypotenuse}\times \frac{Hypotenuse}{Base} = \frac{Perpendicular}{Base}= \tan \theta

3 0
3 years ago
Please help me<br><br>if don't know don't answer, if you answer i will report ​
Amanda [17]

Answer:

A.) m = 1.5 | B.) p = -1 | C.) t = 2

Step-by-step explanation:

A.)

4(m+3)=18\\4m+12=18\\4m=6\\m=3/2=1.5

B.)

-2(p+5)+8=0\\-2p-10+8=0\\-2p-2=0\\-2p=2\\p=-1

C.)

3+5(t-1)=8\\3+5t-5=8\\5t-2=8\\5t=10\\t=2

4 0
3 years ago
Read 2 more answers
ABCD is a trapezium.<br> DC = 3AB<br> DA=<br> (3)<br> DB<br> (1)<br> Find the exact magnitude of BC.
Whitepunk [10]
The exact mangitude of the BC would be
5 0
3 years ago
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