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Stels [109]
3 years ago
10

What is hs the answer to this question? Y= 5x+5 Y - x=5

Mathematics
1 answer:
ANEK [815]3 years ago
3 0
Y = 5x + 5
y - x = 5

You can use substitution to solve this system. Use y's expression (5x + 5) for y in the second equation to solve for x:

y - x = 5
5x + 5 + x = 5
6x + 5 = 5
6x = 0
x = 0

Substitute your value for x into one of the original equations to y:

y = 5x + 5
y = 5(0) + 5
y = 5

Finally, substitute both values into both original equations to check your work:

5 = 5(0) + 5    -->    5 = 5    <--True
5 - 0 = 5    -->    5 = 5    <--True

Answer:
x = 0
y = 5
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stira [4]

Vertex form is

y = a(x-p)^2 + q

We're practically in vertex form,

y = 1(x - 0)^2 + 4

That's a vertex at x=0, y=4, (0,4)

choice C

5 0
3 years ago
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Simplify the following expression. 3x ^ 4 + 2x ^ 3 - 5x ^ 2 + 4x ^ 2 + 6x - 2x - 3x ^ 4 + 7x ^ 5 - 3x ^ 3
hammer [34]

Answer:

7x ^ 5  - x ^ 3- x ^ 2 + 4x

Step-by-step explanation:

1) 3x ^ 4 + 2x ^ 3 - 5x ^ 2 + 4x ^ 2 + 6x - 2x - 3x ^ 4 + 7x ^ 5 - 3x ^ 3

Rearrange the expression.

2) 7x ^ 5+3x ^ 4- 3x ^ 4 + 2x ^ 3  - 3x ^ 3- 5x ^ 2 + 4x ^ 2 + 6x - 2x

Solve.

3) 7x ^ 5  - x ^ 3- x ^ 2 + 4x

4 0
3 years ago
Have you ever been on or seen a ride like this at a fair or amusement park? Imagine being strapped into your seat at the bottom
Marysya12 [62]

The linear relationship is y = 20x, 0 ≤ x ≤ 17.5 and the quadratic relationship is y = -16x² + 288, 0 ≤ x ≤ 3√2

<h3>The equations that represent the relationships</h3>

<u>The linear relationship</u>

When making the trip up, we have:

Rate = 20 feet per seconds

This means that the relationship is:

Distance = Rate * Time

So, we have:

y = 20x

The height of the tower is 350.

So, we have:

20x = 350

Divide by 20

x = 17.5

Hence, the linear relationship is y = 20x, 0 ≤ x ≤ 17.5

<u>The quadratic relationship</u>

The quadratic equation can be represented as:

y = -0.5ax² + vx + h

Where:

  • a = acceleration due to gravity = 32
  • v = velocity = 0
  • h = height = 288

So, we have:

y = -0.5 * 32x² + 0 * x + 288

Evaluate

y = -16x² + 288

When you get to the ground level, we have:

-16x² + 288 = 0

Subtract 288 from both sides

-16x² = -288

Divide by -16

x² = 18

Take the square root of both sides

x = ±3√2

Remove negative domain

x = 3√2

Hence, the quadratic relationship is y = -16x² + 288, 0 ≤ x ≤ 3√2

Read more about linear and quadratic equations at:

brainly.com/question/72196

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larisa86 [58]

Answer:

48

Step-by-step explanation:

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can also be written as

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3√256

48

4 0
4 years ago
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Vlada [557]
2 - √5 the conjugate 2 + √5



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3 years ago
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