MATHEMATICS MIDDLE SCHOOL

Which polynomial represents a sum of cubes?x^3+9

4x^3+1

8x^3+1

64x^3-27


Which of the following polynomials represents a difference of squares?


4x^2-8

9x^2+16

16x^2-2

49x^2-25

Answers

Answer 1
Answer:

Answer:

1) The polynomial8x^3+1represents a sum of cubes

2) The polynomial49x^2-25represents a difference of squares

Step-by-step explanation:

1) To find the polynomials represents a sum of cubes :

8x^3+1 represents a sum of cubes

For 8x^3+1

=2^3x^3+1^3

=(2x)^3+1^3

Therefore 8x^3+1=(2x)^3+1^3

Therefore 8x^3+1 represents a sum of cubes

2)To find the polynomials represents a difference of squares :

49x^2-25 represents a difference of squares

For 49x^2-25

=7^2x^2-5^2

=(7x)^2-5^2

Therefore 49x^2-25=(7x)^2-5^2

Therefore 49x^2-25 represents a difference of squares

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Sam worked on his science fair project for 1/4 hour on Friday and 1/2 hour on Saturday. What are four common denominators for the fractions? Explain your reasoning.
In the diagram shown, line mm is parallel to line nn. Cruz says that ∠4∠4 and ∠6∠6 are congruent angles. Is he correct? Why or why not?a) Yes, because they are both obtuse angles b)Yes, because ∠4∠4 and ∠7∠7 are congruent corresponding angles, and ∠6∠6 and ∠7∠7 are vertical angles. c)No, because ∠4∠4 and ∠6∠6 are not right angles. d)No, because ∠4∠4 and ∠5∠5 are not congruent, and ∠5∠5 and ∠6∠6 are not congruent.
Someone plz help to become brainliest and get points !! :) plz answer truthfully

What point on the number line represents sea level?

Answers

Zero because the height of land and depth of places is measured according to sea level which is considered the baseline
the answer here would be 0
.................

What series of transformations would carry trapezoid ABCD onto itself? (x + 0, y − 4), 90° clockwise rotation, reflection over the y-axis (x + 0, y − 4), 180° rotation, reflection over the y-axis (x + 6, y + 0), 90° clockwise rotation, reflection over the x‐axis (x + 6, y + 0), 180° rotation, reflection over the x‐axis

Answers

A trapezoid is a quadrilateral containing at least one or two parallel sides. Since the other two sides of these figures were parallel, these fulfill not only the trapezoid requirements, as well as the trapezoid requirements.

  • It is reflective thinking over the \bold{x-axis\ (x + 6, y + 0), 180^(\circ)} rotation, reflection over the x-axis would enable the parallel edges to grow in value.
  • It increases the trapezoid's size, 180° rotation will indeed leave the same trapezoid in the opposite situation, and a reflection over through the x-axis.
  • It will indeed bring it below the trapezoid as a result, transformed trapezoid A'B'C'D' will absorb original trapezoid ABCD.

Therefore, the answer is "Last choice."

Learn more:

brainly.com/question/14009875

Answer:

D, reflection over the x‐axis (x + 6, y + 0), 180° rotation, reflection over the x‐axis

Step-by-step explanation:

Here are some numbers.5 4 3 9 7
Which of these numbers is:

a factor of 32?
a common factor of 12 and 21?

Answers

A factor is an integer multiplied with another integer to get the product.

Factors of 32 are 1, 2, 4, 8, 16, 32. Among the given choices, 4 is the factor of 32.

Factors of 12 are 1, 2, 3, 4, 6, 12
Factors of 21 are 1, 3, 7, 21
The common factors of 12 and 21 are 1 and 3. Among the given choices, 3 is the common factor of 12 and 21.
4 is a factor of 32
and 3 is a common factor of 12 and 21

Help me out with these last two problems

Answers

A)
x = number of days 
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B) 
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x = 166.7 days

11. In a box-and-whisker plot, the interquartilerange is a measure of the spread of the
middle half of the data. Find the interquartile
range for the data set: 10, 3, 7, 6, 9, 12, 13.
A 12
© 6
B 7
D 8

Answers

The answer to the question would be 6 because it’s in the middle
6. The range is the middle number in a sequence. That’s how you will find your awsner. You are welcome:)

A historical marker is in the shape of a parallelogram. The height is 5.7 M. Area of the marker is 22.8 m to the power of 2. What is the length of the base of the marker?

Answers

If the area is 22.8^(2) and the height is 5.7...
you simply divide 22.8 by 5.7
giving you the base of 4metres

to double check try...
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