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AlekseyPX
4 years ago
15

12+5x-8=12x-10 Help me solve it step by step

Mathematics
1 answer:
9966 [12]4 years ago
6 0
The first thing you want to do is combine like terms

4 + 5x = 12x -10

and make x on one side alone

14 = 7x


divide by 7 to make x alone

2 = x

The answer is 2
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The position equation for a particle is s of t equals the square root of the quantity t cubed plus 1 where s is measured in feet
vladimir1956 [14]
\bf s(t)=\sqrt{t^3+1}
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\cfrac{d^2s}{dt^2}=\cfrac{6t(2\sqrt{t^3+1})-3t^2\left( \frac{3t^2}{\sqrt{t^3+1}} \right)}{(2\sqrt{t^3+1})^2}\implies 
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\bf \cfrac{d^2s}{dt^2}=\cfrac{6t[2(t^3+1)]-1}{4(t^3+1)\sqrt{t^3+1}}\implies 
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8 0
3 years ago
Read 2 more answers
Alexandria High School scored 37 points in a football game. Six points are awarded for each touchdown. After each touchdown, the
galben [10]

Answer:

Five touchdowns were made in the game

Step-by-step explanation:

Here, we want to know the number of touchdowns made during the game.

We proceed as follows;

Let the number of touch downs be x

So the total points earned through touchdowns is 6 * x = 6x

The number of scores is 10 times

Let the number of extra kick be y which means that the number of conversions will be (y-1)

So the total number of score times will be ;

x + y + y-1 = 10

x + 2y = 11 •••••••••(i)

Now let’s work with points

Touch down points = 6 * x = 6x

Points from extra kick = 1 * y = y

Points from 2-point conversions = 2(y-1) = 2y - 2

So;

6x + y + 2y -2 = 37

6x + 3y = 37 + 2

6x + 3y = 39

divide through by 3

2x + y = 13 •••••••(ii)

So now solve simultaneously

From ii, y = 13 - 2x

Put this into i

x + 2(13-2x) = 11

x + 26 - 4x = 11

x -4x = 11-26

-3x = -15

x = -15/-3

x = 5

There are five touchdowns in the game

6 0
3 years ago
For the sphere shown, r = 4.2 cm.<br> What is its volume, to the nearest cubic centimeter?
DochEvi [55]
V = 4/3(pi)(r^3)
V = 4/3(pi)(4.2^3)
V = 310 cm^3

Good luck!
8 0
3 years ago
Pls tell the answer for 50 points!
White raven [17]

Answer:

7*11^5

Explanation:

(the photo)

5 0
3 years ago
The volume of this cylinder is 2,769.48 cubic meters, the height is 18 cubic meters. What is the radius? Use ​ ≈ 3.14 and round
Firdavs [7]

Answer: r = 7 meters

Step-by-step explanation:

The formula for determining the volume of a cylinder is expressed as

Volume = πr²h

Where

r represents the radius of the cylinder.

h represents the height of the cylinder.

π is a constant whose value is 3.14

From the information given,

Volume = 2,769.48 cubic meters

Height = 18 meters

Therefore,

2769.48 = 3.14 × r² × 18

2769.48 = 56.52r²

r² = 2769.48/56.52 = 49

Taking square root of the left hand side and the right hand side of the equation, it becomes

r = √ 49 = 7 meters

5 0
3 years ago
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