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2 years ago

PLEASE HELP! 15 POINTS AND FIRST PERSON TO ANSWER GETS BRAINLIEST!!!

Mathematics

1 answer:

Natalija [7]2 years ago

6 0

Answer:

This is a function because each x value has a different y value. If one of x values would of had two different y values then it would of not have been a function

Step-by-step explanation:

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If someone could work out the first half of the problem and explain that would be great!

andrew-mc [135]

Answer:

x = -5

y = -5

Step-by-step explanation:

If you multiply the top equation by negative 2, you can add it to the bottom equation and cancel out the x:

-2(-x + 5y = -20) --> 2x - 10y = 40

Add this to the bottom equation top to bottom:

2x - 10y = 40

-2x + 4y = -10

You get:

-6y = 30

Then solve for y:

y = -5

Plug this back in for either equation and solve for x:

-x + 5(-5) = -20

-x -25 = -20

-x = 5

x = -5

Your answers are:

x = -5

y = -5

7 0

2 years ago

Read 2 more answers

Write the statement as an algebraic expression.

Firdavs [7]

Answer:

$(c^{2}+d)+2(cd)$

Step-by-step explanation:

we know that

The algebraic expression of the phrase " The sum of square of c and d" is equal to adds the square of number c to the number d

$(c^{2}+d)$

The algebraic expression of the phrase " The sum of square of c and d increased by twice their product" is equal to

$(c^{2}+d)+2(cd)$

7 0

3 years ago

Read 2 more answers

What angle relationship Describes angles CBE and DEB? I need answered back quick

Usimov [2.4K]

same-side interior angles

3 0

3 years ago

Refer to the figure. Barton Road and Olive Tree Lane

Fantom [35]

Angles at right-angle add up to 90 degrees

The measure of acute angle Tryon Street forms with Barton Road is <em>33 degrees</em>

The angle is given as:

$\mathbf{A = 57^o}$ ---- <em>Angle formed by Tryon Street with Olive Tree Lane. </em>

The measure of the acute angle formed by Tryon Street with Barton Road (B) is calculated using:

$\mathbf{A + B = 90}$ ---- angle at right-angle

Make B the subject

$\mathbf{B = 90 - A}$

Substitute 57 for A

$\mathbf{B = 90 - 57}$

$\mathbf{B = 33}$

Hence, the measure of acute angle is 33 degrees