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
lilavasa [31]
3 years ago
8

What number would you add to both sides of x2 + 7x = 4 to complete the square? o 22

Mathematics
1 answer:
Vika [28.1K]3 years ago
4 0

Answer:

49/4

Step-by-step explanation:

x^2 + 7x = 4

Take the coefficient of x

7

Divide by 2

7/2

Square it

(7/2) ^2 = 49/4

Add this to each side

x^2 + 7x  +49/4= 4+49/4

You might be interested in
The short sides of a rectangle are 2 inches. The long sides of the same rectangle are three less than an unknown
Brums [2.3K]

Answer:

The first student is correct

Step-by-step explanation:

With the given information there is already 4 inches on the rectangle. 13 x2 = 26. 26+4=30. For student two if the unknown number was 10 it would not work because the longest side is 3 less then the unknown number. 10-3=7. 7x2=14. 14+4= 28<30

8 0
3 years ago
Which value of HNK are used to write the function f(x) = x2 + 12x + 6 in vertex form?
anygoal [31]

Answer:

( − 6 , − 30 )

Step-by-step explanation:

Rewrite in vertex form and use this form to find the vertex  ( h , k ) .

6 0
3 years ago
Sven participates in his employer’s 401k plan. His annual salary is $52,000. Sven contributes 7.5% of his annual salary. His emp
IgorLugansk [536]

Answer:

$ 6,500

Step-by-step explanation:

(52,000)(0.075)+(52,000)(0.05) = 3,900 + 2,600

= 6,500

5 0
2 years ago
A typist can type 4800 words per hour. How many words can she type in 1 minute?
Colt1911 [192]

Answer: 80

1 hour= 60mins

So to know how many words can she type in 1 min, we do the math "4800 : 60"

5 0
2 years ago
There are 451 children in Lia's school. Write a number greater than 451
fiasKO [112]
452, 453, 454, 456, etc.
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the square root of 200
    12·1 answer
  • When Andrei surveyed 36 random seventh-grade students in the lunchroom, he found that 7 out of 9 would like to try or have alrea
    6·1 answer
  • The company also discovers that it costs $15.50 to produce 3 camera cases, $23.50 to produce 7 camer cases, and $56 to produce 1
    11·1 answer
  • Suppose a railroad rail 2 kilometers in length expands 16 centimeters on a hot day. How many meters would the center rise above
    14·1 answer
  • The sum of three consecutive integers is 189. What are the integers?
    13·1 answer
  • When 10 is added to the number that is produced by doubling the number x, the result is equal to 5 times the number that is 7 le
    12·1 answer
  • How many solutions does the system have?
    15·1 answer
  • PLZ HELP URGENT!!! DUE TOMORROW
    10·1 answer
  • What must you do when you divide and multiply by a negative number?
    14·1 answer
  • 1
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!