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
Anuta_ua [19.1K]
4 years ago
10

How do you solve 4x^2+20x+25=0 by completing the square

Mathematics
1 answer:
svlad2 [7]4 years ago
3 0
(2x+5)(2x+5)= 0

2x+5=0. 2x+5=0

x= -5/2, x= -5/2
You might be interested in
Evaluate 4x^2-12x+5 at x=6. A. 67 B. 77 C. 105 D. 221
Kamila [148]

Answer: B. 77

Sub x =6 into the given expression

4x^2 - 12x + 5

= 4(6)^2 - 12(6) + 5

= 144 - 72 + 5

= 77

3 0
3 years ago
Which expressions are equivalent to -6 + 3(2+(+-4t))
elena-s [515]

Answer:

-12<em>t </em>

<em>Simplify the expression and combine like terms.</em>

5 0
3 years ago
What = variable
prisoha [69]
74.4 is the answer.
hope this helps.
6 0
3 years ago
Read 2 more answers
If Mike does his mathematics homework today, the probability that he will do it tomorrow is 0.8. The probability that he will do
harina [27]

Answer:

d. 14:11

Step-by-step explanation:

There is a 7 in 10 chance that Mike does his homework today and a 8 in 10 chance he will do it tomorrow,  the probability that he will do it both today and tomorrow is:

P = \frac{7}{10}* \frac{8}{10}\\P=\frac{56}{100}=0.56

The odds are the probability that an event occurs over the probability that it does not occur:

Odds = \frac{0.56}{1-0.56}=\frac{56}{44}=\frac{14}{11}

The odds that he will do it both today and tomorrow are 14:11.

3 0
4 years ago
What is the equation of a line that is perpendicular to 8x+6y=-5?
masha68 [24]

what is the equation of a line that is perpendicular to 8x+6y=-5 the answer is b

4 0
3 years ago
Other questions:
  • A square pyramid with a height of 7 inches has volume of 47.25 cubic inches. Find the side length of the square base
    6·1 answer
  • Find the volume 3yd 6yd 7yd
    12·2 answers
  • Word form for 18,429,000,050,000
    8·1 answer
  • How much higher is 500 than 400 m?
    13·2 answers
  • Here are two rational numbers 7/25 and 3/10
    10·2 answers
  • What is the end behavior of f(x)=4x^4-3x^2?
    10·1 answer
  • -9 - (-4) = <br> What does that equal to?
    12·1 answer
  • I need the answer for this one please
    9·1 answer
  • PLS HELP MEE this one math problem:(
    12·2 answers
  • Use completing the square to determine which of the following gives the solutions to 3x2 - 24x + 40 = 28.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!