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
marysya [2.9K]
3 years ago
12

What belongs in the box marked with the question mark in the proof?

Mathematics
1 answer:
koban [17]3 years ago
6 0
<span>the blank boxes are for you to plug in x=20 to prove its right. so it would be 3(20)-4=2(20+8) 60-4=2(28) 56=56 so its true!</span>
You might be interested in
Math help please I need it ASAP
statuscvo [17]

Answer:

x=10.5

Step-by-step explanation:

\frac{x}{6} =\frac{7}{4} \\x=\frac{7}{4} \times 6\\=\frac{21}{2} \\=10.5

4 0
2 years ago
PLEASE HELP FAST.....WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER ​
Lady bird [3.3K]

Answer:

False, the dilation factor is 2.

Step-by-step explanation:

Notice how each measure of the segments for the red quadrilateral is 2x the amount of the segments for the blue triangle? That right there is the dilation factor.

5 0
3 years ago
What is the answer to the following equation?<br>-x • 3x=?
Darina [25.2K]
The answer is -3 because:
A negative times a postive stays negative and also:
the variable "x" has an invisible one in front of it, so,
-1 x 3 = -3

Hope this helps :)
8 0
3 years ago
Multiply the polynomials (5x^2+4x-4)(4x^3-2x+6)<br> Explain your steps!!
Lapatulllka [165]
So distribute using distributive property
a(b+c)=ab+ac so

split it up
(5x^2+4x-4)(4x^3-2x+6)=(5x^2)(4x^3-2x+6)+(4x)(4x^3-2x+6)+(-4)(4x^3-2x+6)=[(5x^2)(4x^3)+(5x^2)(-2x)+(5x^2)(6)]+[(4x)(4x^3)+(4x)(-2x)+(4x)(6)]+[(-4)(4x^3)+(-4)(-2x)+(-4)(6)]=(20x^5)+(-10x^3)+(30x^2)+(16x^4)+(-8x^2)+(24x)+(-16x^3)+(8x)+(-24)
group like terms
[20x^5]+[16x^4]+[-10x^3-16x^3]+[30x^2-8x^2]+[24x+8x]+[-24]=20x^5+16x^4-26x^3+22x^2+32x-24

the asnwer is 20x^5+16x^4-26x^3+22x^2+32x-24




4 0
3 years ago
2.4 liters of water is poured into a pitcher that now contains 10.1 liters of water. Which equation represents this?
Alenkinab [10]
I couldn’t figure out d answer to This hope this helped
8 0
2 years ago
Other questions:
  • Which angle measures create a triangle with three different side lengths?
    11·1 answer
  • Adding Rational Expressions
    6·2 answers
  • Plz help. I need number 6 and 7
    8·1 answer
  • Explain how does knowing 1 + 7 helps you find the sum for 7 +1
    9·2 answers
  • Write a situation in which positive and negative numbers are used to describe values that have opposite meaning. What does 0 rep
    6·2 answers
  • |x+ 1/2| =3 2/3<br><br> What does x equal?
    6·1 answer
  • ANSWER THIS ASAP DONT SEND A FILE AT ALL !! I NEED THE ANSWER QUICK HELPP ONLY ANSKER IF YOY REALLY KNOW!!
    11·2 answers
  • Ok for this Simplify the following expression using the distributive property
    9·2 answers
  • Alright a real question I need help on
    8·1 answer
  • Help me with this parallelogram please :)
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!