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
aleksley [76]
3 years ago
13

What number should be added to the expression x^2 + 2x to change it into a perfect square trinomial?

Mathematics
1 answer:
horrorfan [7]3 years ago
6 0
The\ perfect\ scuare:(a+b)^2=a^2+2ab+b^2\\------------------\\\\x^2+2x\to a=x;\ 2ab=2xb\to b=1\\\\therefore\\\\x^2+2x\cdot1+1^2=x^2+2x+\boxed{1}\leftarrow\boxed{A}
You might be interested in
at a certain conference of 100 people there are 29 indian women and 23 indian men. out of these indian people, 4 are doctors and
tangare [24]

Answer:

4 women doctors

Step-by-step explanation:

because if 24 are men or doctor the 4 gotta be women doctor

3 0
2 years ago
During the quarantine, the Jones family installed a rectangular pool in their backyard that was 10 feet wide and 15 feet long. T
olganol [36]
15 feet martins family work for with the dodo code for a mask is a horrible thing to ware a little kid in a sweat room or the room with the kids and then they have a white black brown brown green green orange brown orange green green orange orange brown orange orange orange
5 0
3 years ago
When you were born, your uncle put $1000 into a bank account for you. According to the terms of the account, your investment
kompoz [17]

Answer:

D. Time; amount;  $2800

I hope this is right because I was looking for the answer to the same question and this is the solution I came up with.

Step-by-step explanation:

Time is the independent variable because it is the variable that is changed.

The Amount (dollars) is the dependent variable because it is effected by the independent variable.

4 0
3 years ago
What number would complete the pattern below? 66 73 13 21 52 __ 10 20
Serhud [2]
The answer is d.61. 66+7=73. 13+8=21. 52+9=61. 10+10=20
3 0
3 years ago
Read 2 more answers
Find the 72nd term of the arithmetic sequence -27, -11, 5, ...
MAXImum [283]

Step-by-step explanation:

first identify the common difference

The first term which i will define by u⁰=-27

u¹=u⁰+(1)d where d is the common difference and u¹ is the second term

u¹=-27+d

-11=-27+d

d=27-11=16

The 72nd term would be u⁷¹ since we started from u⁰ as our first term:

Use the explicit relation given by:

u(n)=u⁰+(n)d

u(71)=-27+71(d)

u⁷¹=-27+71(16)

u⁷¹=-27+1136

u⁷¹=1109

8 0
2 years ago
Other questions:
  • I need help with this am not smart pls help
    12·1 answer
  • In how many different ways can 3 identical green shirts and 3 identical red shirts be distributed among 6 children such that eac
    9·1 answer
  • Help wanted really don't k
    6·1 answer
  • Solve the triangle give the measure of x
    13·1 answer
  • Explain on how to do it for brainlist please
    11·1 answer
  • A cylinder has a volume of 3201 cubic inches and a height of 5 inches.
    9·1 answer
  • Find f (-2) f(x)= 3x^2 - 8x + 7
    7·1 answer
  • The area of the square is 25. What is each side length
    14·1 answer
  • Help me please... I don’t get dis T^T
    6·1 answer
  • 2. Which statement is not true in the equation
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!