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
Hunter-Best [27]
3 years ago
15

What number should be added to this expression to change it into a perfect square trinomial?

Mathematics
2 answers:
Reptile [31]3 years ago
4 0
C. 4 makes this equation a perfect trinomial
Licemer1 [7]3 years ago
3 0
C. 4 because 4 is a perfect square, as well as x^2 and 4x


I hope that helps!
You might be interested in
A circle has a circumference of 907.46 What is the diameter of the circle?
mafiozo [28]
The diameter would be d≈288.85!

I hope this helped! Brainliest? :) -Raven❤️
7 0
3 years ago
What is the approximate area of a circle with a radius of 4 feet? Use 3.14
Eva8 [605]

Answer:

≈ 50 ft²

Step-by-step explanation:

<u>Area of circle:</u>

  • A = πr²

<u>Given:</u>

  • r = 4 ft, π = 3.14

<u>Then:</u>

  • A= 3.14 * 4² = 50.24 ≈ 50 ft²
8 0
3 years ago
Factor the expression. Use the fundamental identities to simplify, if necessary.
Rasek [7]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

sin²x + cos²x = 1 ⇒ sin²x = 1 - cos²x

Given

sin²x + 7cosx + 17

=1 - cos²x + 7cosx + 17

= - cos²x + 7cosx + 18 ← factor out - 1 from each term

= - (cos²x - 7cosx - 18)

Consider the factors of the constant term (- 18) which sum to give the coefficient of the cosx term (- 7)

The factors are - 9 and + 2, thus

= - (cosx - 9)(cosx + 2) ← in factored form

3 0
3 years ago
PLEASE HEEEELP,WILL GIVE BRAINLIEST<br> Also can you explain how you got your answer
Anastasy [175]

Answer:

what the question

Step-by-step explanation:

can you help me with my question The surface of the Gilded Age was of great prosperity, while the interior was corrupt; the "gilding" or good exterior of the Gilded Age came from which of the following? A. Rebuilding the nation from the left over money from the War B. The technological advancements of the industrial revolution C. The mass movement of people from the country into the cities D. New monuments and buildings built in honor of the war heroes

5 0
3 years ago
Wrote the number in 2 other forms 15,409
myrzilka [38]
10,000+5,000+400+9
there is one and the other you just put in word form
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the amplitude, period, and phase shift of f(x) = −5 sin(x + 2π) − 4? 1. Amplitude = −5; period = π; phase shift: x = 2π
    7·2 answers
  • What is the answer to this question
    15·1 answer
  • Simplify 3m2 (−6m3 )
    6·1 answer
  • Find the area of the polygon.
    9·1 answer
  • The equivalent rational number of 5 by 15 is
    14·1 answer
  • Karen and her friends went to dinner at Olive Garden. Their bill was $58 including tax.
    13·1 answer
  • Help asap! Will give brainliest
    14·1 answer
  • How many pints are in 1 gallon?
    5·1 answer
  • Simplify the expression.<br> 3(a – 7) =
    5·2 answers
  • 2/x-4/y/-5/y+3/x<br><br><br> Pls help
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!