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3 years ago

How to convert between this equation: 15x + 5y = 25 from Standard Form to Slope-Intercept Form?

Mathematics

1 answer:

Leona [35]3 years ago

6 0

hey buddy,

●15x + 5y = 25

5y = 25-15x

y = (25 - 15x) /5

y = 5 - 3x

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Identify the following data set: ... a survey from Gwinnett County Public Schools, required that all of the teachers fill out th

kozerog [31]

The following data set is A population ⇒ answer A

Step-by-step explanation:

Lets revise the definition of each choice

1. A population, is a discrete group of people, animals or things that

can be identified by at least one common characteristic for the

purposes of data collection

2. A sample is just a part of a population

3. The parameter is a fixed measure which describes the target population

Parameter is a fixed and unknown numerical value

4. A statistic is a characteristic of a small part of the population

The statistic is a variable and known number which depend on the

sample of the population

∵ All of the teachers in Gwinnett County Public Schools fill out the

survey

∴ The data set is population

The following data set is A population

Learn more:

You can learn more about statistic in brainly.com/question/13540962

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3 0

3 years ago

Two cars, one going due east at 25 m / sec and the second going due south at 50/3 m / sec are traveling toward the intersection

valkas [14]

Answer:

30 m/s

Step-by-step explanation:

Let's say the distance from the first car to the intersection is x, and the distance from the second car to the intersection is y.

The distance between the cars can be found with Pythagorean theorem:

d² = x² + y²

Taking derivative with respect to time:

2d dd/dt = 2x dx/dt + 2y dy/dt

d dd/dt = x dx/dt + y dy/dt

We know that x = 200, dx/dt = -25, y = 150, and dy/dt = -50/3.

To find dd/dt, we still need to find d.

d² = x² + y²

d² = (200)² + (150)²

d = 250

Plugging everything in:

250 dd/dt = (200) (-25) + (150) (-50/3)

dd/dt = -30

The cars are approaching each other at a rate of 30 m/s at that instant.

4 0

3 years ago

If α and β are the zeroes of the polynomial ax^2 + bx + c, find the value of α^2 + β^2

Pie

Answer:

Step-by-step explanation:

α + β = -b/a

αβ = c/a

α² + β² = (α + β)² - 2αβ

$= (\frac{-b}{a})^{2}-2\frac{c}{a}\\\\= \frac{b^{2}}{a^{2}}-\frac{2c}{a}\\\\=\frac{b^{2}}{a^{2}}-\frac{2c*a}{a*a}\\\\=\frac{b^{2}-2ca}{a^{2}}$

7 0

2 years ago

Solve For x. (-4x+5)-(6x+7)=0 (Pls Explain Your Answer in Simple Terms)

Alchen [17]

Answer:

$- 4x + 5 - (6x + 7) = 0\\ - 4x + 5 - 6x - 7 = 0 \\ - 10x - 2 = 0 \\ 10x + 2 = 0 \\ 10x = - 2 \\ x = \frac{ - 2}{10} \\ x = - .2 \\ thank \: you$

6 0

2 years ago

Read 2 more answers

A store mixes Kentucky bluegrass worth $12 per pound and chewings fescue worth $15 per pound. The mixture is to sell for $13 per

quester [9]

The solution for the problem is as follows:

((12x + 15y)/228) = 13
x + y =228

x = kentucky bluegrass
y = chewings fescue

By systems of linear equations, the answers would be:

x = 152
y = 76

Therefore, there should be 152 pounds of Kentucky bluegrass to be used and 76 pounds of chewings fescue.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

5 0

3 years ago