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
White raven [17]
3 years ago
9

Solve the equation by completing the square 5x(x+6)=-50

Mathematics
1 answer:
motikmotik3 years ago
3 0
First lets distribute the 5x 
5x^2 + 30x = -50

Lets divide every term by 5 
x^2 + 6x = -10 

To complete the square we have to half the b value, which in this case is 6. Then square it. 
Half of 6 is 3, 3 squared is 9 

Add that to both sides of the equation 
x^2 + 6x + 9 = -1 

Find the binomial squared
(x+3)^2 (If you're wondering how i got that please comment) 

(x+3)^2 = -1 

Take the square root of the equation of both sides
(x+3) = +/- i
x = -3 +/- i
x = -3 - i
and 
x = -3 + i


You might be interested in
PLEASE HELP! I HAVE A TIME LIMIT AND IM BEHIND
Kipish [7]

Answer:

Part A none

Part B drawn

Step-by-step explanation:

Suppose the transversal intersects a pair of parallel lines it creates two pairs of alternate exterior angles.

Now if we look at the first figure we find that the alternate exterior angle 1 and 4 are equal . Also 3 and 2 are equal.

But <1 and < 2 are not equal . They are supplementary angles. Their sum is equal to 180 degrees.

Similarly angles 3 and4 are supplementary angles.

This situation does not support Ricky's claim. So you will select none in part A.

Now in part B we see that angle 5 &8 are equal and 6 & 7 are congruent.

This refutes Ricky's claims and this can be proved mathematically.

Angles 5 & 6 are supplementary angles. Similarly 7 & 8 are supplementary therefore they cannot be equal as they are unequal and a transversal is drawn not a perpendicular.

3 0
3 years ago
What is the sum of all the integers between
horsena [70]

Answer:

D

Step-by-step explanation:

√20 = 4.472135955

√50 = 7.0710678119

are them and you get 11.5432037669

The close answer Is d

5 0
2 years ago
Read 2 more answers
Lauren and Aidan left their offices at 6:15 p.m. and drove to meet at a restaurant the same distance away from their offices for
klasskru [66]
Lauren arrived at 6:48pm. why? each mile is one (1) minute, if Aidan got at the restaurant at 6:35 at 42mph and lauren was at 39mph add 3 which would make that 42 and yea
8 0
2 years ago
You have an ant farm with 35 ants. The population of ants in your farm will double every 3 months. The table shows the populatio
vfiekz [6]

Answer:

560 ants and non linear function

Step-by-step explanation:

12 months divided by 3 months is 4. 35 times 2 is 70. Again is 140. Again is 280. Again a 4th time is 560 ants. It is not linear because it does not increase the same amount each time.

7 0
3 years ago
Can you please help me figure out 6m=<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B-1%7D%7B3%7D%20" id="TexFormula1" title=" \f
Rainbow [258]
-1/3 divided by six... m=-1/18
8 0
3 years ago
Read 2 more answers
Other questions:
  • What related number sentence shows the Commutative Property of Addition? 3+9=12
    6·2 answers
  • Round 5649 to the nearst ten hundred thousand
    14·1 answer
  • What is the square root of 2197?
    11·1 answer
  • Which ratios are proportional to 14:21? choose all the answers that are correct
    11·1 answer
  • How to find Sin67/2 and 97/2 without using the calculator? I need a step by step explanation plz...​
    6·1 answer
  • Can someone help me with these 2 questions?
    6·1 answer
  • Can I see a picture of this
    6·2 answers
  • The following dot plot represents a random sample of elementary students and the number of children that live in their home. If
    12·2 answers
  • A=1/2bh solve for b then h
    6·2 answers
  • Find the area of the regular polygon. Give the answer to the nearest tenth.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!