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
charle [14.2K]
3 years ago
5

What number must be added to the expression below to complete the square ? x2+7x

Mathematics
1 answer:
stellarik [79]3 years ago
6 0

Answer:

you must add 2 to the equation

Step-by-step explanation:

You might be interested in
True or false: the relationship between the number of workers and the number of bars produced is proportional.
ValentinkaMS [17]

Answer:

True

Step-by-step explanation:

5 0
3 years ago
The sum of squares of two consecutive positive even integers is 52 more than their product. Find these numbers.
natulia [17]

Answer:

The first set of consecutive even integers equals (8 , 6)

The second set is ( - 8 and - 6) which also works.

Step-by-step explanation:

Equation

(x)^2 + (x + 2)^2 = (x)(x + 2) + 52            Remove the brackets on both sides

Solution

x^2 + x^2 + 4x + 4 = x^2 + 2x + 52        Collect the like terms on the left

2x^2+ 4x+ 4 = x^2 + 2x + 52                  Subtract right side from left

2x^2 - x^2 + 4x - 2x + 4 - 52  =  0          Collect the like terms

x^2 + 2x - 48 = 0                                     Factor

(x + 8)(x - 6) = 0

Answer

Try the one you know works.

x - 6 = 0

x = 6

Therefore the two integers are 6 and 8

6^2 + 8^2 = 100

6*8 + 52  = 100

So 6 and 8 is one set of  consecutive even numbers that works.    

========================

What about the other set.

x + 8 = 0

x = - 8

x and x + 2

- 8  and -8 + 2 = - 8, - 6

(- 8 )^2 + (- 6)^2 = 100

(-8)(-6) + 52 = 100

Both sets of consecutive numbers work.


5 0
3 years ago
Read 2 more answers
What is SV? Put the answer down below.
viktelen [127]

The measure of length SV is 60 units

<h3>Isosceles Right Triangle</h3>

An Isosceles right triangle is a right triangle that has equal opposite and adjacent sides.

The above means that:

SV = ST

Substitute values for SV and ST

2z = z + 30

Subtract z from both sides

z = 30

From the figure, we have:

SV = 2z

Substitute 30 for z

SV = 2 \times 30

SV = 60

Hence, the measure of length SV is 60 units

Read more about isosceles right triangle at:

brainly.com/question/3956010

8 0
3 years ago
The two opposite vertices of a square are (-2,2) and (1,-1). What are the other two vertices of the square?
drek231 [11]
Isn't it (-3,3) that's what I think because it's 1 2 3 but I don't know
3 0
4 years ago
Amy and her partners measured the pH of water samples from different ponds in her neighborhood. This data follows a normal distr
mrs_skeptik [129]
From the tables this would be 1 - 0.9773  =  0.0227  or 2.27%
3 0
4 years ago
Read 2 more answers
Other questions:
  • Write a real word problem in which multiplies decimals
    6·1 answer
  • What's the equivalent of 2/3 =9
    8·1 answer
  • 30 is 60% of what number?
    6·1 answer
  • Which statement is true about the graphs shown?
    15·2 answers
  • A $3,000 loan is taken out for 9% interest for 6 months. What is the amount of interest charged?
    10·1 answer
  • URGENT (math)
    12·1 answer
  • Which is the sum of and 3/10 and 1/3​
    14·2 answers
  • What anime does the main character say I'm gonna be king of the pirates? ​
    14·2 answers
  • Determine the equation of the line that passes through points (-4,5) and has a slope of m = -3
    15·1 answer
  • A large bottle of orange juice contains 400 mL of juice. A medium size bottle contains 60% as much. Find how many millilters are
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!