1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Katena32 [7]
3 years ago
10

Kylie explained that (negative 4 x + 9) squared will result in a difference of squares because (negative 4 x + 9) squared = (neg

ative 4 x) squared + (9) squared = 16 x squared + 81. Which statement best describes Kylie’s explanation?
Kylie is correct.
Kylie correctly understood that it is a difference of squares, but she did not determine the product correctly.
Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.
Kylie determined the product correctly, but she did not understand that this is a perfect square trinomial.
Mathematics
2 answers:
PtichkaEL [24]3 years ago
8 0

Answer:C, Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.

Step-by-step explanation:

Eva8 [605]3 years ago
4 0

Given:

The given expression is:

(-4x+9)^2

According to Kylie,

(-4x+9)^2=(-4x)^2+(9)^2

(-4x+9)^2=16x^2+81

To find:

The correct statement for Kylie's explanation.

Solution:

We have,

(-4x+9)^2

According to the perfect square trinomial (a+b)^2=a^2+2ab+b^2.

(-4x+9)^2=(-4x)^2+2(-4x)(9)+(9)^2

(-4x+9)^2=16x^2-72x+81

Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.

Therefore, the correct option is C.

You might be interested in
Searches related to Elon sat on the dock with his fishing rod, when suddenly he felt the rod being pulled down! He reeled in his
Ray Of Light [21]
The graph is attached.

We first graph the point where his catch reached the surface, (35, 0).  Since it travels upward at a constant rate, the graph will be linear.  We also need to know where it starts (what depth it is at when he begins reeling it in).  We can use the formula d=rt as a template for our function.  d would be distance (in our case, depth), r is the rate (speed) and t is the amount of time.

To find how far the catch had to travel to reach the surface, we set up our equation as:
d = 0.1(35) 

This will tell us how much distance it traveled in 35 seconds.  0.1(35)=3.5, so the catch started 3.5m under water.  It then travels up at 0.1 m per second.

3 0
2 years ago
A combinatio of a translations and a reflection can always be replaced with one transformation
Tema [17]

Answer:

It is correct according to the laws

4 0
1 year ago
Ms. Bloom brought 4 packs of treats for Halloween. She gave away 2 1/9 packs of treats to her class and gave away 5/9 packs of t
Eddi Din [679]

Answer: 1 1/3 packs of treats


Step-by-step explanation:

2 1/9 + 5/9 = 2 6/9, which can be simplified to 2 2/3.

We subtract 2 2/3 from 4, giving us 1 1/3

8 0
3 years ago
What name best describes this polygon? trapezoid rectangle quadrilateral rhombus
8_murik_8 [283]
Could you please send a picture of the polygon?
3 0
2 years ago
jasmine has taken an online boating safety course and is now completing her end of course exam.As she answers each question, the
Alexus [3.1K]
20% of 16 which is. 10%=1.6 and another that would = 3.12
6 0
3 years ago
Other questions:
  • A survey of 1,108 employees at a software company finds that 621 employees take a bus to work and 445 employees take a train to
    6·1 answer
  • Line m is parallel to line n. The measure of angle 3 is 86. What is the
    11·1 answer
  • ? Do you believe you have a certain mindset when confronted with a math<br> ?
    6·1 answer
  • How do i solve this problem?? helpppp!!!!!
    14·1 answer
  • PLEASE ANSWER MATH WORK - ASAP
    13·1 answer
  • Finish this simile. Use your imagination to complete the description.
    7·2 answers
  • Multiple choice pls help
    14·2 answers
  • The reflection of point S across the y-axis is point
    6·1 answer
  • Pls help <br> -21 ÷ b = 3, b = ? and uhm this one too<br> 3c + 1 = 10, c = ?
    14·1 answer
  • Solve for x assume that lines appear tangent are tangent
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!