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
Travka [436]
3 years ago
5

Solve by factoring 4x^2-25=0

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
3 0
                               4x² - 25 = 0
            4x² - 10x + 10x - 25 = 0
2x(2x) - 2x(5) + 5(2x) - 5(5) = 0
          2x(2x - 5) + 5(2x - 5) = 0
                   (2x + 5)(2x - 5) = 0
       2x + 5 = 0    U    2x - 5 = 0
             - 5  - 5              + 5 + 5
             2x = -5               2x = 5
              2      2                2     2
               x = -2¹/₂             x = 2¹/₂

Solution Set: {-2¹/₂, 2¹/₂}
You might be interested in
He floor of a moving van is 3 feet off of the ground. The ramp into the van makes a 12° angle with the ground. About how long is
soldier1979 [14.2K]

Given :

Hight of the van from the ground, h = 3 feet.

The ramp into the van makes a 12° angle with the ground.

To Find :

How long is the ramp.

Solution :

Let, length of ramp is l .

So, height of ramp in terms of length is given by :

h = l \times sin\ 12^o\\\\l = \dfrac{h}{sin \ 12^o}\\\\l = \dfrac{3}{sin \ 12^o}\\\\l = 14.429 \ feet

Hence, this is the required solution.

8 0
2 years ago
How is the equation Y= 2X similar to the equation Y = 2X +3. how is it different
Svetlanka [38]

Answer:

2x in common (slope)

Step-by-step explanation:

similar because they both have a slope of 2

different because the 2nd equation has a y intercept of 3

8 0
3 years ago
Read 2 more answers
I need help with this question!!
Mashcka [7]

Answer:

QR = 5.

Step-by-step explanation:

Because the parallelograms are similar then the corresponding sides are in the same ratio.

So AB / PQ = BC / QR

9/3 = 15 / QR

15 / QR = 3

QR = 15/3

= 5.  (answer)

7 0
3 years ago
An acute angle θ is in a right triangle with sin θ = five sixths. What is the value of cot θ?
Molodets [167]
<span>The value of cot is √13/6</span>
6 0
3 years ago
Pleaze Help! Due in 15 min!!!! Will give Brainliest to first correct answer to show steps!
Grace [21]
Your answer is5x^4 * sqrt 3x
4 0
3 years ago
Other questions:
  • PLEASE HELP PICTURE SHOWN
    8·1 answer
  • PLEASE SOMEONE HELP EASY Y6 QUESTION
    6·2 answers
  • Scenario: Two people in a major city with a population of 450,000 get infected with a rapidly spreading virus. If each day the i
    15·1 answer
  • Solve the following system of equations:<br><br> x + 3y = −4<br> x + 5y = −6<br><br> pls and thx
    8·2 answers
  • Mr. Malone is contemplating which chauffeured car service to take to the airport. The first costs $28 upfront and $2 per mile. T
    10·1 answer
  • What is the expressions factor for -12x+24-18y?
    15·2 answers
  • Answer this for branlist if get right
    12·1 answer
  • Person who answers this question correctly first with everything in the sentence get 100 points depending on the sentence or sen
    6·2 answers
  • Which of these statement is true about this graph
    8·2 answers
  • YeS mOrE 9Th GrAdE mAtH (question for smart people)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!