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
CaHeK987 [17]
3 years ago
8

How To work this out ?

Mathematics
1 answer:
MrMuchimi3 years ago
6 0
(a) Using the completing the square method, we need to write  into the form of  where , so
Expand to find the value of c
Notice that we get back the first two terms, the  and the .We need to get rid of the last term of '9' as the term was not in the original form. The final form will look like
Hence, 
(b)          
(c) , square root both sides      plus and minus of 2     Hence           
 
You might be interested in
Solve 5x+2y=4 x-y=5 (by elimination)I really need help
Ray Of Light [21]
I hope this helps you



x=5+y



5 (5+y)+2y= 4



25+5y+2y=4



7y= -21



y= -3



x=5+y


x=5-3 x= 2
6 0
3 years ago
Write the equation in function form. Show your steps. <br> 2x-3y=0
skad [1K]

Answer: Heyaa!

Your Answer is... \frac{3y}{2}

Step-by-step explanation:

Substitute the value of the variable into the equation and simplify.

Hopefully this helps <em>you !</em>

<em />

- Matthew ~

8 0
2 years ago
Jeff drinks 2/3 of a glass of juice. Write <br> a fraction equivalent to 2/3
Rufina [12.5K]
A fraction that means the same as 2/3 is 4/6.

To find this, you can simply multiple both the numerator and denominator (top and bottom) by any number as long as it's the same number for both top and bottom.
In this case, we used 2 as the number, and multipled it to the top and bottom of 2/3, to get 4/6.

I hope this helps!
7 0
4 years ago
Which number line model represents the expression -4+7.5?
vlada-n [284]

Answer:

A)

Step-by-step explanation:

6 0
3 years ago
The cost of five books is 71 dollars what is the cost of each book
Sedbober [7]
Divide 71 and 5 to get a decimal since 71 does not end with 5 or 0. Do it to get 14 1/5 or 14.2
5 0
3 years ago
Read 2 more answers
Other questions:
  • A line passes through (-1, 7) and (2, 10).
    8·1 answer
  • Write 84.8 in words. please and thank you.
    14·2 answers
  • Javier had 2 passes intercepted out of 17 attempts in his last football game. What percent of Javier's passes were intercepted?
    9·2 answers
  • Adventura needs to know animals weight in kilograms is 20 pounds is about 9 kilograms and a dog weighs 30 pounds use a ratio tab
    13·1 answer
  • FAST PLEASE 50 POINTS :D
    11·2 answers
  • Two triangles that have the same side length will always be congruent true or false?
    14·2 answers
  • Please help me and thank you :)
    10·1 answer
  • Write the equations of the lines with the following descriptions
    7·1 answer
  • Sj2dg3h3fvehdvddddddddddddd-=
    11·1 answer
  • What is this? Solve 4x+11=k for x
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!