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
lidiya [134]
2 years ago
6

Which value must be added to the expression x2 + 12x to make it a perfect-square trinomial?

Mathematics
2 answers:
stellarik [79]2 years ago
8 0

Answer:

D) 81

Step-by-step explanation:

Alexxx [7]2 years ago
7 0

Answer:36

When you factor X^2+12x+36 you get a perfect square trinomial which is (x+6)^2

Hope this helps!

You might be interested in
Which expression correctly represents “six more than the product of five and a number, decreased by one”?
Nataly_w [17]

Answer:

Step-by-step explanation:

Product of 5 and a number:  5n

Six more than that would be 5n + 6

Finally, "six more than the product of 5 and a number, decreased by one" would be

5n + 6 - 1, or 5n + 5

7 0
2 years ago
Find the intersection points using substitution or elimination for each system of equations:
natka813 [3]

Answer:

Step-by-step explanation:

Okay, so I think I know what the equations are, but I might have misinterpreted them because of the syntax- I think when you ask a question you can use the symbols tool to input it in a more clear way, otherwise you can use parentheses and such.

Problem 1:

(x²)/4 +y²= 1

y= x+1

*substitute for y*

Now we have a one-variable equation we can solve-

x²/4 + (x+1)² = 1

x²/4 + (x+1)(x+1)= 1

x²/4 + x²+2x+1= 1

*subtract 1 from both sides to set equal to 0*

x²/4 +x^2+2x=0

x²/4 can also be 1/4 * x²

1/4 * x² +1*x² +2x = 0

*combine like terms*

5/4 * x^2+2x+ 0 =0

now, you can use the quadratic equation to solve for x

a= 5/4

b= 2

c=0

the syntax on this will be rough, but I'll do my best...

x= (-b ± √(b²-4ac))/(2a)

x= (-2 ±√(2²-4*(5/4)*(0))/(2*(5/4))

x= (-2 ±√(4-0))/(2.5)

x= (-2±2)/2.5

x will have 2 answers because of ±

x= 0 or x= 1.6

now plug that back into one of the equations and solve.

y= 0+1 = 1

y= 1.6+1= 2.6

Hopefully this explanation was enough to help you solve problem 2.

Problem 2:

x² + y² -16y +39= 0

y²- x² -9= 0

6 0
3 years ago
Mike began with $20 in savings and increased his savings by $10 every month. Lindsay began with $5 in savings and doubled her sa
MrMuchimi

Answer:

Lindsay...................................

3 0
2 years ago
IF YOU ANSWER RIGHT I MIGHT GIVE BRAINLIST!!!
Pie

Answer:

1. Positive, 1+2=3

2. Negative, -1-2=-3

Step-by-step explanation:

If you look at both in a graphing perspective, the point (1,2) is in Quadrant I. likewise, adding 2 to the x-coordinate will also result in the point (3,2), also in Quadrant I, where the x coordinate is positive. The point (-1,2) is in Quadrant II, and adding -2 to the x coordinate keeps it in Quadrant II, where the x-coordinate is negative.

8 0
2 years ago
Read 2 more answers
What is a base in an exponent
Mnenie [13.5K]
The base is the number that the exponent is attached to. So ten squared, the base is ten.
4 0
3 years ago
Read 2 more answers
Other questions:
  • -20y + 4y = 4 - 8y - 4
    7·1 answer
  • Suppose f(x)= x^2 and g(x)= (1/5x)^2. Which statement best compares the graph of g(x) with the graph of f(x)?
    13·2 answers
  • A sample of 5 buttons is randomly selected and the following diameters are measured in inches. Give a point estimate for the pop
    15·1 answer
  • a movie sells tickets for for the cost of 4$ and 6$.there is a total of 75 tickets for a total of 400$,how many tickets were sol
    12·1 answer
  • The mean of data set A is 43.5 and the MAD is 3.7. The mean of data set B is 12.8 and the MAD is 4.1.
    11·2 answers
  • Benjamin works at a printing company. He is making T-shirts for a high school volleyball team. The press he runs can imprint 3 T
    8·1 answer
  • Can you please help me answer this picture​
    5·1 answer
  • Please give the explanation and the answer
    9·1 answer
  • Find the area of each. Use pi = 3.14
    5·1 answer
  • What is the surface area of the composite solid? a rectangular prism with a length of 2 meters, width of 8 meters, and height of
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!