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Talja [164]
2 years ago
9

What is the sum of the polynomials (-x^2 +9) + (-3x^2 - 11x + 4)

Mathematics
1 answer:
Triss [41]2 years ago
3 0

Answer:

4

−

4

+

8

2

+

8

Step-by-step explanation:

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Which of these angle pairs are congruent because they are corresponding
Vikentia [17]

Answer:

its c i think

Step-by-step explanation:

7 0
2 years ago
Geometry pls help if good!!!!<br><br> What is the circumference of the circle in terms of pi?
Tasya [4]

Answer:

Step-by-step explanation:

Because circumference is pi times diameter, you would multiply pi times 2 times 20 to get an answer of 40 pi inches. Just to clarify, the 2x10 would be the diameter

6 0
3 years ago
-3x^2+12x-8 in vertex form using the completing the square method! ASAP PLEASE WILL MARK U WHATEVER YOU WANT! WORK NEEDED
atroni [7]

Answer:

 -3x2 + 12x - 8

Step-by-step explanation:

Equation at the end of step 1

 ((0 -  3x2) +  12x) -  8

STEP

2

:

STEP

3

:

Pulling out like terms

3.1     Pull out like factors :

  -3x2 + 12x - 8  =   -1 • (3x2 - 12x + 8)  

Trying to factor by splitting the middle term

3.2     Factoring  3x2 - 12x + 8  

The first term is,  3x2  its coefficient is  3 .

The middle term is,  -12x  its coefficient is  -12 .

The last term, "the constant", is  +8  

Step-1 : Multiply the coefficient of the first term by the constant   3 • 8 = 24  

Step-2 : Find two factors of  24  whose sum equals the coefficient of the middle term, which is   -12 .

     -24    +    -1    =    -25  

     -12    +    -2    =    -14  

     -8    +    -3    =    -11  

     -6    +    -4    =    -10  

     -4    +    -6    =    -10  

     -3    +    -8    =    -11  

     -2    +    -12    =    -14  

     -1    +    -24    =    -25  

     1    +    24    =    25  

     2    +    12    =    14  

     3    +    8    =    11  

     4    +    6    =    10  

     6    +    4    =    10  

     8    +    3    =    11  

     12    +    2    =    14  

     24    +    1    =    25  

4 0
3 years ago
Read 2 more answers
Please help thank you.
andre [41]
You have a rectangle and 2 triangles:
 rectangle =  12 *6 = 72

larger triangle on left, find the base: 
base = 6 / tan(45) = 6

area = 1/2 x b x h = 1/2 x 6 x 6 = 18

smaller triangle:
 area = 1/2 x b x h
1/2 x 2 x 6 = 6
 

total area:
  72 +6 +18 = 96 cm^2




5 0
2 years ago
Made this question if you can able to make ​
Vilka [71]

Answer:Serkan teacher regularly buys 75 TL of gasoline in his car every week.

At the end of the 13th week, how much is the total gasoline expenditure made by the serkan teacher?

A)390 B)420 C)900 D)975

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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