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STALIN [3.7K]
2 years ago
9

Simify

Mathematics
1 answer:
Harlamova29_29 [7]2 years ago
4 0

Step-by-step explanation:

1. -9x - 3 - 3 + 2x

-7x - 6

3. 3 - 4x - 7x - 2

-11x - 1

4. 5x - 1 + 3 + 2x

7x + 2

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What is the greatest number that has one comma when written with numerals and with number names?
Soloha48 [4]
I believe it would be 999,999

7 0
3 years ago
Please help<br> calculate the coefficient of x^14y^4 in the expansion of (x+y)^18
stellarik [79]
..................(1x+14y)4
3 0
3 years ago
F(x) = x2 + 1 g(x) = 5 – x (f – g)(x) =
Blizzard [7]

Answer:

x^2+x-4

Step-by-step explanation:

(f-g)=(x^2+1)-(5-x)

     =x^2+1-5+x

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4 0
3 years ago
Solve for x...........................
yaroslaw [1]

Answer:

Option A is correct, i.e. x = -3, x = 7.

Step-by-step explanation:

Given the equation is x² -4x -21 = 0.

We can compare it with general quadratic equation i.e. ax² +bx +c =0.

then a = 1, b = -4, c = -21.

We can use Quadratic formula as follows:-

x = ( -b ± √(b²-4ac) )/2a

x = ( +4 ± √(16-4*1*-21) )/2*1

x = ( +4 ± √(16+84) )/2

x = ( +4 ± √(100) )/2

x = ( +4 ± 10 )/2

x = (4+10)/2 or x = (4-10)/2

x = 14/2 or x = -6/2

x = 7 or x = -3

Hence, option A is correct, i.e. x = -3, x = 7.

5 0
2 years ago
Which are true about the area of a circle? Check all that apply. The diameter is used in the formula. The units are always squar
jenyasd209 [6]

Answer:

selected the correct ones in bold

Step-by-step explanation:

The diameter is used in the formula. The units are always squared. The area can be found when given the diameter by first finding the radius. The area is the distance around the circle. Circumference can be used to find area.

8 1
3 years ago
Read 2 more answers
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