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
6

Rút gọn : (x+2)^2+(3-x)^2= ?

Mathematics
1 answer:
Yanka [14]3 years ago
6 0

Step-by-step explanation:

=x^2+2x+4+9-6x+x^2

=2x^2-4x+13

You might be interested in
A new field has a perimeter of 220 m and a width of 62 m. A bag of canola seed will cover 185 m2 of ground. How many bags of can
siniylev [52]

Answer:

17

Step-by-step explanation:

Assuming the field is a rectangle, the perimeter is found through the equation:

P = 2l + 2w

Since we know the perimeter and width, we can substitute and solve for the length.

(220) = 2l + 2(62)\\220 = 2l + 124\\96 = 2l\\l = 48\\

Using the length and width, we can find the area.

A = lw\\A = (48)(62)\\A = 2976

The area is 2976 squared meters. We divide by the area a bag of canola seed can cover and round up if necessary to find the total number of bags.

n = 2976 / 185\\n = 16.09

Because we need a whole bag in order to cover for the decimal area, we round up to 17 bags.

7 0
3 years ago
39<br> 125°<br> Find the value of x
Savatey [412]

Answer:

Step-by-step explanation:

The sum of the interior angles of this triangle must be 180 degrees.

Thus, angle x is 180 degrees less (39 degrees plus 125 degrees), or

x = 180 degrees - 164 degrees = 16 degrees.

Because of the 125 degree angle, this is an obtuse triangle.

8 0
3 years ago
Find the sum of the series. ∞ 5(−1)nπ2n + 1 32n + 1(2n + 1)! n = 0
wlad13 [49]
Could you give the question more clear?
5 0
4 years ago
Fill in the table so it represents a linear function.
olga2289 [7]

Answer:

(From left to right) 2  5  8

Step-by-step explanation:

1. Find the gap (between the first and last terms) 11 - (-1) = 12

2. Divide by the number of times the linear term is added: 12/4=3

3. Use the common difference to find the missing values.

6 0
3 years ago
Help me plz thank you
Travka [436]

Answer: 2nd one

Hard to explain

Pls give brainliest.

3 0
3 years ago
Other questions:
  • I need help ASAP ! I don't understand it! Anyone??
    15·2 answers
  • the price of an item has been reduced by $1.35. the new sale price is &amp;18.58. what was the original price?
    15·1 answer
  • To solve the equation 2x−3=3x−7 , Esin graphs the functions f(x)=2x−3 and g(x)=3x−7 on the same set of coordinate axes.
    8·1 answer
  • How many pounds of newspapers did Mrs. Tobia's class recycle?​
    5·1 answer
  • There are 16 bacteria in a beaker.Four hours later there are 228 bactriea in the beaker.What is the rate of change per hour in t
    13·1 answer
  • Trình bày một số ứng dụng của công thức cộng , công thức nhân trong ghép nối các thiết bị để tăng độ tin cậy trong hệ thống
    14·1 answer
  • Samantha invested $670 in an account paying an interest rate of 5.5% compounded daily. Assuming no deposits or withdrawals are m
    6·1 answer
  • This line has a slope<br> of -3 and passes<br> through the point<br> (4, -10)
    11·2 answers
  • Solve the inequality 5y+4 ≤ 22-y and graph the solution set on a number line. Please explain how to do it!
    5·2 answers
  • Which statement is false?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!