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
kramer
3 years ago
9

Show that |3+10|=|3|+ |10|?

Mathematics
1 answer:
Viefleur [7K]3 years ago
8 0
|3+10|=|3|+|10|
|13|=|13|
13=13
You might be interested in
Find each absolute value<br><br>| 4+2i |<br><br>| 5-i |<br><br>| -3i |
galina1969 [7]

How to get answer for number 1: | 4+2i |

\left|a+bi\right|\:=\sqrt{\left(a+bi\right)\left(a-bi\right)}=\sqrt{a^2+b^2}\\\mathrm{With\:}a=4,\:b=2\\=\sqrt{4^2+2^2}\\Refine\\=\sqrt{20}\\\sqrt{20}=2\sqrt{5}\\=2\sqrt{5}

How to get answer for number 2: | 5-i |

\left|a+bi\right|\:=\sqrt{\left(a+bi\right)\left(a-bi\right)}=\sqrt{a^2+b^2}\\\mathrm{With\:}a=5,\:b=-1\\=\sqrt{5^2+\left(-1\right)^2}\\=\sqrt{26}

Number 3 how to get answer: | -3i |

\left|a+bi\right|\:=\sqrt{\left(a+bi\right)\left(a-bi\right)}=\sqrt{a^2+b^2}\\\mathrm{With\:}a=0,\:b=-3\\=\sqrt{0^2+\left(-3\right)^2}\\Refine\\=\sqrt{9}\\\sqrt{9}\\\mathrm{Factor\:the\:number:\:}\:9=3^2\\=\sqrt{3^2}\\\mathrm{Apply\:radical\:rule}:\quad \sqrt[n]{a^n}=a\\\sqrt{3^2}=3\\= 3

4 0
2 years ago
Read 2 more answers
How do i graph a quadratic function with only a a and c
Gnoma [55]

easy

Step-by-step explanation:

if you have for example x^2-4

just graf x^2 and that put down all point for 4

5 0
2 years ago
The difference between twice a number, x, and a smaller number, y, is 3. The sum of twice the number and the smaller number is –
Sergio [31]

Answer:

I think the answer is  <u>y = 2 x minus 3 and y = negative 2 x minus 3 . </u>

I'm sorry if it's incorrect

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
A new shoe comes in two colors,black or red,and in sizes 5 to 12,including half sizes.If a pair of the shoes is chosen at random
Dima020 [189]
Less then 50% thats foshow
5 0
2 years ago
If h(x) = 48, find x
babymother [125]

Answer: 0523 i think this the answer i don't know

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • What are all of the factors of 23 and 126??? Please help with them and write them separate.
    13·1 answer
  • What is the answer to the equation ?. 6a - b= -5
    14·1 answer
  • A rectangle has a height of 4x^34x 3 4, x, cubed and a width of x^3+3x^2+2xx 3 +3x 2 +2xx, cubed, plus, 3, x, squared, plus, 2,
    12·1 answer
  • Jalyn plans to sell Algebra Nation t-shirts as a fundraiser for a new scholarship initiative. The wholesale t-shirt company char
    10·1 answer
  • Please help — Which ratio represents cos(c)?
    5·1 answer
  • Alex's car depreciates in value by 18% per year.
    14·1 answer
  • Please use the image to solve it
    8·1 answer
  • 40 ft converted into yards
    7·2 answers
  • K = [ 14 -13 0 3 8 -1 -10 -2 5 ] find the determinant of K
    15·1 answer
  • HALP PLS Which expressions are equivalent to this expression?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!