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pashok25 [27]
3 years ago
10

7x - 18 = 10x + 3 Simplified

Mathematics
1 answer:
Oxana [17]3 years ago
4 0

Answer:

x-7

Step-by-step explanation:

7x - 18 = 10x + 3

Subtract 7x  from each side

7x-7x - 18 = 10x-7x + 3

-18 = 3x+3

Subtract 3 from each side

-18-3 = 3x

-21 = 3x

Divide by 3

-21/3 =3x/3

-7=x

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Is the expression (-2m)^100 positive or negative when it is simplified?
Varvara68 [4.7K]

Answer:

positive

Step-by-step explanation:

the reasoning behind this is because when you do powers you multiply the number by itself. If you multiply -2x-2 then it turns into a positive number and will stay a positve number

have a great day :D

3 0
3 years ago
A TV has a rectangular picture with an area of 6 square feet. The picture has a length of 3 feet. What is the perimeter of
bagirrra123 [75]

Answer:

C. 10 ft.

Step-by-step explanation:

Area of 6 sq. ft. which is rectangular. The length is 3 ft and perimeter is l+l+w+w=perimeter. A rectangular shape has 2 sides of the same length and the other two are the same but, a different length the the other two sides.

Equation:

3+3+2+2=10

8 0
3 years ago
Read 2 more answers
What percent of 60 is 12? Show your work. Is this wrong or right. 60/100 = 0.6*12 7.2% or do i removes the .2 off the percentage
Troyanec [42]
You don't just go removing numbers here and there without a good reason. In any case, your whole approach here is wrong. You're calculating 60 percent of 12. But the question says to take 12 out of a group of 60 and tell what percent of the group you have. That's (12/60) x 100.
5 0
3 years ago
Put into scientific notation 2910000
dolphi86 [110]

Answer:

The Answer is: 2.91 x 10^6

Step-by-step explanation:

Move the decimal from the right to left and count the number of moves, stopping at the next to last number.

Given:

2,910,000

In Scientific notation:

2.91 x 10^6

Hope this helps! Have an Awesome Day!! :-)

7 0
3 years ago
For a certain​ drug, the rate of reaction in appropriate units is given by Upper R prime (t )equalsStartFraction 2 Over t plus 1
Tems11 [23]

Answer:

a) 8.13

b) 4.10

Step-by-step explanation:

Given the rate of reaction R'(t) = 2/t+1 + 1/√t+1

In order to get the total reaction R(t) to the drugs at this times, we need to first integrate the given function to get R(t)

On integrating R'(t)

∫ (2/t+1 + 1/√t+1)dt

In integration, k∫f'(x)/f(x) dx = 1/k ln(fx)+C where k is any constant.

∫ (2/t+1 + 1/√t+1)dt

= ∫ (2/t+1)dt+ ∫ (1/√t+1)dt

= 2∫ 1/t+1 dt +∫1/+(t+1)^1/2 dt

= 2ln(t+1) + 2(t+1)^1/2 + C

= 2ln(t+1) + 2√(t+1) + C

a) For total reactions from t = 1 to t = 12

When t = 1

R(1) = 2ln2 + 2√2

≈ 4.21

When t = 12

R(12) = 2ln13 + 2√13

≈ 12.34

R(12) - R(1) ≈ 12.34-4.21

≈ 8.13

Total reactions to the drugs over the period from t = 1 to t= 12 is approx 8.13.

b) For total reactions from t = 12 to t = 24

When t = 12

R(12) = 2ln13 + 2√13

≈ 12.34

When t = 24

R(24) = 2ln25 + 2√25

≈ 16.44

R(12) - R(1) ≈ 16.44-12.34

≈ 4.10

Total reactions to the drugs over the period from t = 12 to t= 24 is approx 4.10

3 0
3 years ago
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