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
Volgvan
3 years ago
10

Which property justifies his step in simplifying an expression?

Mathematics
1 answer:
Dimas [21]3 years ago
3 0
The distributive property
Hope this helps!
Vote me brainliest!
You might be interested in
Harper has $14 in her piggy bank. Her mom pays her $12 for chores. How much does Harper now have in the piggy bank?
vovikov84 [41]

Answer:

26

Step-by-step explanation:

14+12=26

1+1=2

4+2=6

7 0
3 years ago
Read 2 more answers
In order to solve the following system of equations by subtraction, which of the following could you do before subtracting the e
Whitepunk [10]
I can't see the options, but you would need to multiply (4x - 2y = 7) by 3, and (3x - 3y = 15) by 4 so that you get 12x in both equations. Then when you subtract, you eliminate 12x. I hope this helps!
7 0
3 years ago
Read 2 more answers
How can i solve this ?
ExtremeBDS [4]

Answer: X > 100

Step-by-step explanation:

X - 19 < 81

Once the less than sign is turned over

X > 81 +19

X > 100

Thus, the value of X must be greater than 100

6 0
3 years ago
Let e1= 1 0 and e2= 0 1 ​, y1= 4 5 ​, and y2= −2 7 ​, and let​ T: ℝ2→ℝ2 be a linear transformation that maps e1 into y1 and maps
Furkat [3]

Answer:

The image of \left[\begin{array}{c}4&-4\end{array}\right] through T is \left[\begin{array}{c}24&-8\end{array}\right]

Step-by-step explanation:

We know that T: IR^{2}  → IR^{2} is a linear transformation that maps e_{1} into y_{1} ⇒

T(e_{1})=y_{1}

And also maps e_{2} into y_{2}  ⇒

T(e_{2})=y_{2}

We need to find the image of the vector \left[\begin{array}{c}4&-4\end{array}\right]

We know that exists a matrix A from IR^{2x2} (because of how T was defined) such that :

T(x)=Ax for all x ∈ IR^{2}

We can find the matrix A by applying T to a base of the domain (IR^{2}).

Notice that we have that data :

B_{IR^{2}}= {e_{1},e_{2}}

Being B_{IR^{2}} the cannonic base of IR^{2}

The following step is to put the images from the vectors of the base into the columns of the new matrix A :

T(\left[\begin{array}{c}1&0\end{array}\right])=\left[\begin{array}{c}4&5\end{array}\right]   (Data of the problem)

T(\left[\begin{array}{c}0&1\end{array}\right])=\left[\begin{array}{c}-2&7\end{array}\right]   (Data of the problem)

Writing the matrix A :

A=\left[\begin{array}{cc}4&-2\\5&7\\\end{array}\right]

Now with the matrix A we can find the image of \left[\begin{array}{c}4&-4\\\end{array}\right] such as :

T(x)=Ax ⇒

T(\left[\begin{array}{c}4&-4\end{array}\right])=\left[\begin{array}{cc}4&-2\\5&7\\\end{array}\right]\left[\begin{array}{c}4&-4\end{array}\right]=\left[\begin{array}{c}24&-8\end{array}\right]

We found out that the image of \left[\begin{array}{c}4&-4\end{array}\right] through T is the vector \left[\begin{array}{c}24&-8\end{array}\right]

3 0
3 years ago
A circle has a diameter of 16 mm. How long is its radius?
konstantin123 [22]
Radius = half of diameter
16 mm/2 = 8 mm
Solution: 8 mm
8 0
2 years ago
Read 2 more answers
Other questions:
  • Charlie runs at a speed of 3 yards per second. About how many miles per hour does Charlie fun?
    8·2 answers
  • -5-3 what does it equal
    11·2 answers
  • Solution for 5-4(2.1x+9.2)&lt;3.5(6-14x)
    7·1 answer
  • Represents the puud<br> x + 4y = 25.50<br> 3x + 2y = 24.00
    7·1 answer
  • X - Зу = -2<br> X - Зу = 16
    13·1 answer
  • The airports in the United States serve more than 635,000,000 people each year. Which of the fallowing is the same number writte
    14·1 answer
  • Show me step by step multiplication on how to answer : 1 2/5 x 1/4
    5·1 answer
  • The answer please answer
    12·2 answers
  • Any one for talk by oning video<br>100% safe <br><br>fna-yzqk-yus. come okaa<br>im arun​​
    9·1 answer
  • 3,6,6,12,9,?,12 what comes next. Options <br>A.15<br>B.18<br>C.11<br>D.13​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!