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
cluponka [151]
3 years ago
5

Help 39 point pic below Math

Mathematics
1 answer:
Kruka [31]3 years ago
8 0

Step-by-step explanation:

Remember the Difference of Squares:

a² - b² = (a + b)(a - b)

Therefore (√20 - √3)(√20 + √3)

= (√20)² - (√3)² = 20 - 3 = 17. (C)

You might be interested in
Rectangle is 2/5 in. long and 1/3 in. wide.
VARVARA [1.3K]
Answer:  "<span>\frac{2}{15}   in²</span> " . {that is:  " (2/15) in² . "}. 
___________________________________________
Explanation:
___________________________________________
The formula/equation for the Area of a rectangle:  

A = L * w  ;  

       in which:   L  =  <span>⅖ in ; 
</span>                       w =  ⅓ in;
___________________________
Find the area;  in a "fraction value" ;
_______________________________
   A = L * w    ;  
 
          →  Substitute the given values for "L" (length) and "w" (width);
       and solve for "A" (area) in the "form of a fraction:
__________________________________________________

A   = (2/15) in  *  (1/3)  in ;
 
→ A    = [(2*1) / (5*3)] *  in * in ; 
______________________________________________________
→  Answer:  The area is:  " \frac{2}{15}   in² " .
                                          
                                             {that is, "(2/15) in² " .}.  
______________________________________________________
8 0
3 years ago
How do I know which operation to use with a word math problem
Mamont248 [21]

Answer:

you use your biggest brain cell

Step-by-step explanation:

4 0
3 years ago
What is the equation of the line that is perpendicular to
s344n2d4d5 [400]

Answer:

y= x-6

Step-by-step explanation:

5 0
3 years ago
PLEASE PLEASE HELP ME WITH THIS!
andreev551 [17]

No. You can actually solve this question without doing any math. Her only score that is above a 90 is 93, so it will be brought down lower than a 90 very easily by the 77 and the 82.

5 0
4 years ago
Write an equation in standard form of the line passing through the points (12, 3) and (-3, 8).
aliya0001 [1]

Answer:

x + 3y = 21

Step-by-step explanation:

(x_{1},y_{1})=(12,3) \\\\(x_{2},y_{2})=(-3,8)\\\\Slope= \dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\= \dfrac{8-3}{-3-12}= \dfrac{5}{-15}\\\\= \dfrac{-1}{3}

Equation of the line: y =mx+ b

y =  \dfrac{-1}{3}x+b\\\\\\Plugin \ x = 12 \ and \ y=3 \ in \ the \ above \ equation\\\\3= \dfrac{-1}{3}*12+b\\\\3= -4+b\\\\3+4 = b\\\\b = 7\\\\\\\y=  \dfrac{-1}{3}x+7\\\\

Multiply the equation by 3

3y = -x + 21

x + 3y = 21

6 0
3 years ago
Other questions:
  • Find the domain and range of the function f(x) = 3x^2 - 5.Also find f(-3) and the numbers which are associated with the number 4
    15·1 answer
  • Ratios that show the same relationship are​
    13·1 answer
  • State whether the number is a solution to the given inequality <br> X&gt;-17;-14
    6·1 answer
  • HELPPPP!!!! PLEASEEE!!!
    8·1 answer
  • To describe a sequence of transformations that maps triangle ABC onto triangle A"B"C", a
    5·1 answer
  • Find the diameter of the circle whose conference is 53.38 cm
    15·1 answer
  • Which of the following is not a rigid transformation?
    9·2 answers
  • Mrs. Nelson asked students in her class to translate the statement “Remy lost some of the $14 his mom gave him” into an algebrai
    8·2 answers
  • 4/3(6y+21)-17&gt;43 help pls
    9·1 answer
  • Determine the similarity ratio (large to small) of the similar figures.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!