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liubo4ka [24]
3 years ago
7

Simplify 3 · 2x. What is the coefficient? • 2 • 3 • 6

Mathematics
2 answers:
fiasKO [112]3 years ago
7 0

Answer:

2x=6x so, answer is 6.

Step-by-step explanation:

icang [17]3 years ago
4 0

Answer:

6x coefficient is 6. the number next to the letter

Step-by-step explanation:

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The length of a rectangle is 4 cm less then twice it’s width the perimeter of the rectangle is 34 cm. What are the dimensions of
IRISSAK [1]
The lengths are 10 and the widthes are 7
8 0
3 years ago
Solve for d.<br> 19d -16d-d-d-1 = 12
Reika [66]

Answer:

d = 13

Step-by-step explanation:

19d - 16d - d - d - 1 = 12

19d + (-16 - 1d - 1d) - 1 = 12

19d + (--18d) - 1 = 12

19d - 18d - 1 = 12

1d = 12 + 1

d = 13

Check:

19*13 - 16*13 - 13 - 13 - 1 = 12

247 - 208 - 26 - 1 = 12

39 - 27 = 12

7 0
1 year ago
Find all solutions in the interval [0,2π) of the equation.
Sauron [17]

Step-by-step explanation:

2sin(x)cos(x) - sin(x) + 2cos(x)-1= 0

<=> sinx( 2cosx -1) + ( 2cosx -1) =0

<=> (sinx +1) + ( 2cosx-1)=0

<=> sinx=-1 or cosx= 1/2

+) sinx=1 => x= pi/2 + k×2pi

+)cosx=1/2 => x= pi/3+ k×2pi or x=-pi/3 + k×2pi

x€ [0,2pi] => x= pi/2, pi/3.

3 0
3 years ago
You want to purchase a pair of shoes for at least $150. You have $55 so far. You earn $10.00 per hour at your job write an inequ
VikaD [51]
55+10.00x ≥ 150 x ≥ 9.5 hours I hope that helps
7 0
3 years ago
the cost of old boiler is £775 per year,the new one is £1850 ,the cost of using a new boiler will be 1/5 less than the cost of u
Tanya [424]

Answer:

I think its 12.3 years

Step-by-step explanation:

a fifth of 775 is 155 and 155 x 12.3 = 1850

4 0
3 years ago
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