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
Lostsunrise [7]
3 years ago
6

To solve the equation below by completing the square, what is your first step? 3x^2+18x=21

Mathematics
1 answer:
Margarita [4]3 years ago
6 0

Answer:

Multiply both sides of the equation by 1/3

Step-by-step explanation:

3x^2+18x=21

The first step is to get the x term with a coefficient of 1, so divide by 3 on both sides of the equation

This is the same as multiplying by 1/3

1/3 * (3x^2+18x)=21*1/3

x^2 +6x = 7

You might be interested in
A,B and c lie on a straight line segment A , E and d lie on a straight line segment AB = 5cm AC= 30cm and EB = 4cm work out the
pav-90 [236]
I'm not sure, I don't no
4 0
3 years ago
information from research studies is sometimes taken out of context. explain why the claims of these studies might be suspect
Oxana [17]
<span>Information from research studies is sometimes taken out of context. This may happen because the researcher's interpretation of the data is being altered by their own preconceived notions, ideas, beliefs, even cultural values. To correctly interpret data, the researcher must remain completely objective.</span>
3 0
3 years ago
-1.6 + (-2.4) add. write your answer in simplest form
alukav5142 [94]

Answer:

-4

Step-by-step explanation:

<u>Step 1:  Combine</u>

Adding a negative number is same as subtracting a number.

-1.6 + (-2.4)

-1.6 - 2.4

-4

Answer:  -4

5 0
3 years ago
Read 2 more answers
A coin is tossed 11 times. a) How many different outcomes are possible? b) How many different outcomes have exactly 8 heads? c)
larisa86 [58]

Answer:

a) 2048

b)164

c)54

d) 11

Step-by-step explanation:

a) A coin has two faces.

Outcome possible =2^11= 2048

b) 8 heads possible outcome = 11!/8!3! = 3971688/241/920= 164 ways

c)2 heads outcome= 11!/2!8!= 39716800/725760=54

d) 7 heads= 11!/7!6! =39716800/3628800 = 11

5 0
3 years ago
Read 2 more answers
What is the value of X as a decimal?
marishachu [46]
X is a number so when u plus a letter that's still a number
6 0
3 years ago
Other questions:
  • Explain how you would find the number of ounces in 0.25 tons
    14·1 answer
  • Express answer in exact form. Show all work for full credit.
    9·1 answer
  • Which property says that (-4/7× -5/3)(1/2) = -(-5/3 ×1/2 )
    6·2 answers
  • Which scatterplot shows that there is a relationship between the variable x and the variable y? On a graph, points are grouped t
    14·2 answers
  • Angle 1 is in a triangle with angle 4 and a 53 degrees angle. What is the sum of the measures of those two angles?
    7·2 answers
  • 20 POINTS!!HELP PLEASE!!! PICTURE IS PROVIDED!!QUESTION 6
    11·1 answer
  • Relation between inputs and outputs
    8·1 answer
  • Find the exact perimeter of the circle with a radius of 5 and round your answer to 2 decimal places
    10·1 answer
  • The county fair charges $1.00 per rode and an additional $3.00 to get in the fair. Write an equation to represent the total cost
    10·1 answer
  • Help help help math math
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!