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
Vera_Pavlovna [14]
3 years ago
10

What is the completely factored form of 25x4 – 16y2?

Mathematics
2 answers:
erastovalidia [21]3 years ago
3 0

Answer:

(5x^2+4y)(5x^2-4y)

Step-by-step explanation:

25x^4-16y^2 has the form a^2-b^2 known as a difference of squares. It factors into (a+b)(a-b). To find a and b you take the square root.

\sqrt{25x^4} =5x^2

\sqrt{16y^2} =4y

The factored for is (a+b)(a-b).

In this case, it is (5x^2+4y)(5x^2-4y)


matrenka [14]3 years ago
3 0

Answer:

c. (5x2 4y)(5x2-4y)

Step-by-step explanation:

Just did the assignment

You might be interested in
Please help thank you!
kotegsom [21]

Answer:

Note that PQ + QR = PR:

Once:  

PR = 15x-11\\PQ=3x+6

PQ + QR = PR\\\\(3x+6)+QR=(15x-11)\\\\QR=(15x-11)-(3x+6)\\\\QR=15x-11-3x-6\\\\QR=12x-17\\

Therefore, the answer is letter B

8 0
3 years ago
Round 8 3/8 to the nearest whole number
kicyunya [14]
The exact form of 8 3/8, is 67/8 Decimal Form: 8.375 & Mixed number: 8 3/8
8 0
3 years ago
Franco read 3/8 of a chapter of his history book in 1/5 of an hour. At this rate, how many chapters of his history book can he r
Irina18 [472]

He can read 1\frac{7}{8} chapters of his history book in 1 hour.

<em><u>Explanation</u></em>

Franco read 3/8 of a chapter of his history book in 1/5 of an hour.

Suppose, he can read x chapters of his book in 1 hour at this rate.

So, the equation according to the <u>ratio of 'the chapter to the time'</u> will be....

\frac{x}{1}= \frac{\frac{3}{8}}{\frac{1}{5}}\\ \\ \frac{x}{1}=\frac{3}{8}*\frac{5}{1}\\ \\ \frac{x}{1}=\frac{15}{8} \\ \\ x= \frac{15}{8}= 1\frac{7}{8}

So, he can read 1\frac{7}{8} chapters of his history book in 1 hour.

6 0
4 years ago
Question in the file below. (Khan Academy)
vitfil [10]
We can suggest this equation.
(6x+x)+(6x+x)+110º+110º=360º
7x+7x+220º=360º
14x=360º-220º
14x=140º
x=140º/14
x=10º

Answer. x=10º
5 0
3 years ago
Read 2 more answers
Tan 9x - tan 5x/ 1+ tan 9x tan 5x
NeTakaya

Answer:

tan 4x

Step-by-step explanation:

Note the difference identity for tangent ratio is

tan(x - y) = \frac{tanx-tany}{1+tanxtany}

Given

\frac{tan9x-tan5x}{1+tan9xtan5x} ← in the form of the right side of the expansion, thus

= tan(9x - 5x)

= tan 4x

8 0
3 years ago
Other questions:
  • A medical website states that 40% of U.S. adults are registered organ donors. A researcher believes that the proportion is too h
    15·2 answers
  • Can someone please explain how to solve it ?? ​
    11·1 answer
  • From a point T on a horizontal ground, the angle of
    9·1 answer
  • Joel made some muffins he gave 1/4 of the muffins to a neighbor. He took 3/8 of the muffins to school. What fraction of the muff
    5·1 answer
  • HELP ASAP!
    9·2 answers
  • I need help please?!!!
    6·1 answer
  • Ten percent of the engines manufactured on an assembly line are defective.
    7·1 answer
  • Abargain clothing store is selling 5 shirts for $20.
    5·1 answer
  • Some one help plz I need to find the area /:
    5·1 answer
  • What is the value of the expression (-12) (-5) +4 divided by (-2)?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!