MATHEMATICS MIDDLE SCHOOL

2x^3+17x^2+23x-42; 2x+7

Answers

Answer 1
Answer:

Answer:

(x−1)(x+6)(2x+7); 2x+7

Step-by-step explanation:

2x3+17x2+23x−42

=(x−1)(x+6)(2x+7)

i could just simplify the first part

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Heres 1. Use the table and the graph to answer the questions.
(a) What is the rate of change for each function? Show your work.
(b) Which function has the greater rate of change?
can you help me do these things

Answers

For the rate of change of Function 1, it is 2 because when I did delta y over delta x (3/-1)-(5/-2) i got negative 2 over negative 1. Two negatives equal a positive. For the rate of change of Function 2, it is 4. I picked two points that can even meet. Then I use the formula of rise over run to comes out as 4/1 simplified to 4. So Function 2 has the greater rate of change.

Answer:

The rate of change of first function is -2.

The rate of change of second function is 4.

Function 2 has greater rate of change.

Step-by-step explanation:

If a line passes through two points (x_1,y_1) and (x_2,y_2), then the formula for rate of change is

m=(y_2-y_1)/(x_2-x_1)

From the table and graph consider any two points to find the rate of change of each function.

From the table, let as consider two point (-1,3) and (-2,5). The rate of change of first function is

m=(5-3)/(-2-(-1))

m=(2)/(-2+1)

m=-2

The rate of change of first function is -2.

From the graph, let as consider two point (-1,0) and (0,4). The rate of change of second function is

m=(4-0)/(0-(-1))

m=(4)/(1)

m=4

The rate of change of second function is 4.

Since -2<4, therefore function 2 has greater rate of change.

4. Martha must finish her math quiz in 35 minutes. She knows thatthere are 10 multiple-choice questions and 5 word problems.If each word problem takes her exactly 3 minutes to complete, howmuch time can she spend on each multiple-choice question?

Answers

My answer is 2 because since she'll take a total of 15 minutes for the word problems, 35-15 is 20 minutes left, there's 10 multiple choice, 20 divides by 10 is 2 minutes each multiple choice question.. hope this helped:)

To the nearest​ millimeter, a cell phone is 135 mm long and 66 mm wide. What is the ratio of the width to the​ length?

Answers

66 to 135
Because it say width to length. if you replace it like 66 to 135

What is the HCF of 2 x y and 6 x y?

Answers

(2 x y) is a factor of (6 x y), so it's the highest common factor of both expressions.
3y is the ans to your question

5(x + 3)= 4(x -3)
What is x?

Answers

Answer:

Step-by-step explanation:

We will have to open the bracket first followed by collecting the like terms

Open the bracket first

5(x+3)=4(x-3)

5x+15=4x-12

Collect like terms

5x-4x=-12-15

x=-27

So the final answer is-27

Answer:

-27

Step-by-step explanation:

5(x+3) = 4(x-3)

5x + 15 = 4x - 12

5x - 4x = -12 - 15

X = -27

Namd the terms in the expression

3n + 4p + 2
​

Answers

The terms are 3n, 4p, and 2.
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