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2 years ago

What is the result of subtracting the second equation from the first? -2x+y=0, -7x+3y=2

Mathematics

1 answer:

kiruha [24]2 years ago

3 0

Answer:

y = 7 x 3 + 2 3

y = 2 x

Step-by-step explanation:

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What type of lines are shown on the graph on the right? Explain your answer.

Trava [24]

Answer: Parallel lines

Step-by-step explanation:

These lines are Parallel due to the fact that they will never cross each other. Since they are both perfectly lined up with each other, this makes them Parallel.

6 0

2 years ago

X^2+2x-5=0 quadratic form

julsineya [31]

Answer:

-1+√6

-1-√6

Step-by-step explanation:

x²+2x-5=0

x=(-2±√(2²-4(-5)))/2=(-2±√(4+20))/2=(-2±√24)/2

x₁=(-2+√24)/2 or x₂=(-2-√24)/2

x₁=(-2+2√6)/2 or (-2-2√6)/2

x₁=-1+√6 or x₂=-1-√6

3 0

3 years ago

Please help!!! ABCD is a square with diagonals intersecting at E. What is the length of BE

Snezhnost [94]

Answer:

$BE = 4\sqrt2$

Step-by-step explanation:

Given

The attached square

Required

Find BE

First, we calculate BD (the diagonal) using Pythagoras theorem.

$BD^2 = BA^2 + AD^2$

Since the shape is a square, then

$BA = AD = 8$

So:

$BD^2 = 8^2 + 8^2$

$BD^2 = 2(8^2)$

Take square roots

$BD = \sqrt{2(8^2)$

$BD = \sqrt{2} * 8$

$BD = 8\sqrt{2}$

BE is half BD.

So:

$BE = \frac{1}{2} * BD$

$BE = \frac{1}{2} * 8\sqrt2$

$BE = 4\sqrt2$

8 0

2 years ago

Should you use Sine, Cosine, or Tangent to solve the following problem

olga55 [171]

tangent

Step-by-step explanation:

because it gave u an angel and and adjacent so your x is the opposite so sin20=x÷17 just use your calculator u will find the ans

8 0

2 years ago

Is 0.23 or 2.3% greater?

Vaselesa [24]

Answer:

0.23

Step-by-step explanation:

If you convert 0.23 into a percent, it becomes 23%, which is more than 2.3%.

Hope that helps!

-Sabrina

5 0

2 years ago