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
Paul [167]
2 years ago
9

Someone help plz? Will mark brainiest!

Mathematics
1 answer:
Alex2 years ago
4 0
2. (a+b)²=a²+2ab+b²
(5x-2)²=(5x)²-2×5x×2+2²
(5x-2)²=25x²-20x+4

4. (a+b)²=a²+2ab+b²
(2x+5)²=(2x)²+2×2x×5+5²
(2x+5)²=4x²+20x+25
∵a=4, b=20, c=25
∴a+b+c=4+20+25=49

Hope my answer helped u :)
You might be interested in
Part A: Solve the equation 4(x + 5) = 9x + 4x − 34, and show your work. (5 points)
nasty-shy [4]

The value of x in the equation 4(x + 5) = 9x + 4x − 34 is 6 after solving and applying properties.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have equation:

4(x + 5) = 9x + 4x − 34  (Given)

4x +20 = 9x + 4x − 34    (Distributive Property)

4x +20 +34 -4x = 9x + 4x − 34 + 34 -4x   (Subtraction Property of Equality)

54 = 9x + 4x − 34 + 34 -4x  (Addition Property of Equality)

54 = 9x  (Combine Like Terms)

x = 54/9   (Division Property of Equality)

x = 6

Thus, the value of x in the equation 4(x + 5) = 9x + 4x − 34 is 6 after solving and applying properties.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ1

3 0
1 year ago
How many solutions does the system have?
amid [387]

Answer:

A; infinitely many solutions

Step-by-step explanation:

first, let's simplify the first equation to make it simpler.

divide both sides by 5

y=3x-8

new system

y=3x-8

y=3x-8

as you can see, they are the same.

not mandatory but useful!⬇⬇⬇⬇

just to be more clear, let's substitute them. since they're both already in y=, we can make them both set to each other.

3x-8=3x-8

add 8 to both sides; subtract 3x from one side

0=0

the answer is A, Infinitely many solutions.

hope this helped <3333333

8 0
3 years ago
How I do 4 boxes that weighed total of 34 kilograms if each box had the same amount
Blizzard [7]
Each box would have exactly 8.5 kilograms each in them. Hope this helps mate =)

4 0
3 years ago
Read 2 more answers
Madeline solved this problem: A basketball player made 10 shots and scored 26 points. She made only two-point and three-point sh
ankoles [38]

Answer:

six is 3 pointers 4 is the 2 pointers

Step-by-step explanation:

3 0
3 years ago
X = In e10. What is x?
OlgaM077 [116]
X= 5 and have a nice day
7 0
3 years ago
Other questions:
  • A truck is being filled with cube-shaped packages that have side lengths of 1/4 foot. The part of the truck that is being filled
    7·1 answer
  • Judy kept track of how many miles she ran last week. She ran a total of 19.4 miles. This week, she wants to run only one-tenth t
    8·1 answer
  • Find value of z pls help:)
    15·1 answer
  • 7 identical toys weigh 1.4 kg.
    9·1 answer
  • Please help I will give brainliest!
    9·1 answer
  • ‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎
    9·1 answer
  • THIS IS A SYSTEMS OF EQUATIONS QUESTION-
    15·1 answer
  • I need help again, plsssssssss help
    6·2 answers
  • Plss help!!!!! Ty!<br><br> What is the area of this semicircle?
    8·2 answers
  • Please help I really need <br><br> Zoom in so it won’t be blurry
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!