Evaluating





100 points worth is it worth it. Also giving out brainliest to the right or closest right answer.

Answer:

Step-by-step explanation:

The rate of change is also known as the slope or rise / run.

Slope Formula: (y2 - y1) / (x2 - x1)

First, we'll need two points that are on the line. You can choose any two points you want, as long as they are on the line.

Point 1 = (0, 1)

Point 2 = (-2, -3)

Then, we'll plug the two points into the formula and solve for the slope.

(-3 - 1) / (-2 - 0)

(-4) / (-2)

2

The rate of change of this line is 2.

Hope this helps!! :)

Answer: the rate of change is 2

Step-by-step explanation:

2² × 23

Step-by-step explanation:

92 = 2 × 46

92 = 2 × 2 × 23

92 = 2² × 23

Answer: Choice A

========================================================

Explanation:

A perfect square trinomial is of the form

(m+n)^2 = m^2 + 2mn + n^2

We can see why this works through use of the FOIL rule.

So the first and last terms must be perfect squares, and they must be positive. This rules out choices B and D since we have -4 and -9 as those last terms being negative.

Choice C is ruled out because the middle coefficient -9 isn't correct. The middle coefficient must be some even number since 2 is a factor of 2mn.

This leaves choice A. We can do a bit of trial and error to find that

(x-2)^2 = x^2 - 4x + 4

showing that choice A is a perfect square trinomial.

Answer:

A) x² - 4x + 4

Step-by-step explanation:

Given the following special factoring formulas on perfect square trinomials:

u² + 2uv + v² = (u + v)²

u² - 2uv + v² = (u - v)²

Apply these concepts on the given set of equations to see which special factoring formulas apply on the given options. I will only work on one of the given options, and you could apply these same techniques on the other ones to compare the results with your calculations.

To find the binomial factors of quadratic equations, you must find factors with product uv, and sum v.

In Option A: x² - 4x + 4

Right off the bat, it seems like the difference of squares may apply to this equation.  You must find the factors that will product of 4 and a sum of -4.

The possible factors are:

product uv: -2 × -2  = 4,

sum v :  -2 + -2 = -4

Hence, the binomial factor of x² - 4x + 4 =  (x - 2)²

If you expand this binomial through FOIL method:

(x - 2)(x - 2) = x² - 2x - 2x + 4 = x² - 4x + 4

This means that the trinomial x² - 4x + 4 produces a perfect square binomial factors of (x - 2)².

Therefore, the correct answer is Option A) x² - 4x + 4.

Please mark my answers as the Brainliest, if you find this helpful :)

Answer:

y = 1/3x + 10/3

Step-by-step explanation:

Slope: 1/3

Point (-4,2)

b = 2 - (1/3)(-4) = 10/3

Answer:

x=15,y=12

Step-by-step explanation:

Alternate angles are those angles that are on the opposite side of the parallel lines transverse with a line touching both parallel lines.

The value of x and y are 15 and 12.

x = 15

y = 12

Option A is the correct answer.

The angles that are in the same position on two parallel lines intersected by a transversal line on the parallel lines.

Corresponding angles are equal.

We have,

The figure contains four angles.

62 and (4x + 2) are alternate angles.

12y and 144 are alternate angles.

We know that alternate angles are equal.

So,

62 = 4x + 2 ____(1)

12y = 144 _____(2)

From (1) we get,

62 = 4x + 2

Subtract 2 on both sides.

62 - 2 = 4x + 2 - 2

60 = 4x

Divide both sides by 4.

4x = 60

x = 60/4

x = 15

From (2)

12y = 144

Divide both sides by 12.

y = 144/12

y = 12

Thus,

The value of x and y are 15 and 12.

x = 15

y = 12

Option A is the correct answer.

Learn more about corresponding angles here:

https://brainly.com/question/1597341

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Answer:

a) linear, straight when graphed and no exponents

b) quadratic, x has exponent

c) quadratic, x has exponent

d) linear, no exponent

e) quadratic, x has exponent

f) i think it's neither because there's two variables that can't add together

Step-by-step explanation:

Answer:

A is linear because a linear equation is mapped in the form y=ax+b and results in a straight line when graphed. This equation has a slope, 1, which occupies the space for a and a y-intercept of 3 which occupies the space for b

B is neither because it doesn't fit the linear form or the quadratic form (which is constrained by the equation y=ax^2+bx+c. The highest degree for this form is 2.) I believe this function is actually a type of cubic which is not an option for the question.

C is a quadratic because it follows the form y=ax^2+bx+c and results in a parabola

d. 3x-y=5 is linear because even though it is not in the y=ax+b form, it can be manipulated into it by subtracting 3x from both sides and then dividing by -1 on both sides to get y=3x-5 which fits the form and graphs a line.

e. 5-x^2=89 would be neither because there is only one variable and there is no value of y that can be solved for. While we can find an x value (or perhaps multiple x values depending on the equation) it wouldn't result in a graphable equation which is a necessity to be classified as a linear or quadratic. In fact, I believe this is actually just an equation and not a function at all and since linear and quadratics are forms of functions they cannot be either. This is because a function is defined as a relation between two variables where each input has one (and only one) output and this equation doesn't have two variables and wouldn't have an output.

f. Neither for the same reason as in e

Hope this helps!

Answer:

21

Step-by-step explanation:

for the 42.

21×2=42

t t t t t t. t tt. t t t. r r r 4 4 4. r r r t t t t t t t t r r r r r r t. tt t t f f. re enne e r r r

Answer:

greatest (2, 13/15, -0.75, -2) least

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

6-3=3

8-5=3

so that is the answer

Answer:-3/2

Step-by-step explanation: transform the expression from 3/4+-9/4 to 3-9/4=-6/4 then reduce 6/4 to -3/2

Answer:

Step-by-step explanation:

Answer: its graph C!, I got it right

Answer:

3

Step-by-step explanation:

Answer:

4x² - 6x

Step-by-step explanation:

2x(2x - 3)

Distribute 2x into the parenthesis:

2x(2x - 3)  = 4x² - 6x

Answer:

Step-by-step explanation: to solve this we'd do 2-(-5) which is the same as  2 + 5 which is 7. final answer is 7/3 or if its a mixed number, 2 1/3

Answer:

the following ordered pairs are your coordinates: (-3,-10), (-1, -4), (0,-1), (4,11)

Step-by-step explanation:

We can find these algebraically. First, you need to put your equation into the form y=mx+b. The m is the slope and the b is your y intercept. Once we have that equation, we just plug in the given X values to find their Y counterparts. The domain is simply the X coordinate and the range is the Y. I hope this helps!

Answer:

[tex](\frac{5}{2}, 2)[/tex]

Step-by-step explanation:

Hi there!

We are given this system of equations:

2x + y = 7

2x - 3y = -1

And we want to find the solution

There are multiply ways to solve systems of equations, but let's solve this one by elimination, where we will add the two equations together to clear one of them, solve for the un-cleared variable, and then use the value of the un-cleared variable to solve for the cleared one

Before clearing a variable, we need to make sure that the signs on the variables are opposites; for example, -3 and 3, which will add together to get 0

We can multiply the equations beforehand if needed in order to manipulate the numbers.

For example, we can multiply the second equation by -1 in order to switch the signs of each number in that equation:

-1(2x-3y=-1)

-2x+3y=1

Now the signs in front of x are 2 and -2, so we can add the equations together to clear them:

2x + y = 7

-2x + 3y = 1

Add the equations together

4y = 8

Divide both sides by 4

y=2

Now let's use 2 as y to solve for x

In the first equation, substitute 2 for y:

2x + 2 = 7

Subtract 2 from both sides

2x = 5

Divide both sides by 2

[tex]x=\frac{5}{2}[/tex]

As a point, the answer is [tex](\frac{5}{2}, 2)[/tex]

Hope this helps!

Answer:

-9 degrees

Step-by-step explanation:

workings -3 * 3 =  -9 degrees

So you know that all the angles in a triangle must add up to 180. Therefore, you can make this equation:

[tex](-20x+3)+(-40x+18)+(-15x+9)=180[/tex]

And now just solve for x!

[tex]-75x+30=180\\-75x=160\\x=\frac{160}{-75}\\x=-2.4[/tex]

So, your answer is:

x = -2.4

Answer:

y=-2x-6

Step-by-step explanation:

You put the slope before the x and the y intercept goes at the end.

Answer:

Well think about it, the key words there are more than and less than so if he traveled let's say from his house until the first city that's 100 miles for the first one and then they say that he traveled 10 miles less than the distance from the first city until the second city. The total distance is 280 because if you read the very last sentence it says that from the original distance from the first city is about 100 miles and then it says if the the distance from the second city to the third city was the same that means that the equation goes like this: (90*2)+100 and in order to get this correctly you must do P.E.M.D.A.S which is parenthesis, exponents, multiplying, dividing, adding and subtracting so there you go.  

Answer:

Well think about it, the key words there are more than and less than so if he traveled let's say from his house until the first city that's 100 miles for the first one and then they say that he traveled 10 miles less than the distance from the first city until the second city. The total distance is 280 because if you read the very last sentence it says that from the original distance from the first city is about 100 miles and then it says if the the distance from the second city to the third city was the same that means that the equation goes like this: (90*2)+100 and in order to get this correctly you must do P.E.M.D.A.S which is parenthesis, exponents, multiplying, dividing, adding and subtracting so there you go.  

Step-by-step explanation:

Answer:

1/2(7.9-0.08) = 3.91

Step-by-step explanation:

Answer:

Length = 6 + 23 = 29 feet

Step-by-step explanation:

Width = x

Length = x + 23

2x + 2(x+23) = 70

2x + 2x + 46 = 70

4x = 70-46

x = 24/4

x = 6

Answer:

about 32 books (rounded)

Step-by-step explanation:

1412/135=32

Answer:

x= -2

TO MUCH STEPS