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kipiarov [429]
3 years ago
12

Find the perimeter of a rectangle with a width of (x - 3) and a length of 4x ​

Mathematics
1 answer:
Firdavs [7]3 years ago
7 0

Step-by-step explanation:

        4x

   __________

   |                     |

x-3|                    |     x-3

   |                     |

   |__________

           4x

Add all sides together to get perimeter

2(4x)+2(x-3)=10x-6

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Simplify -8x^2-3y+4x-2y^3+x^2-7x^3
rewona [7]

Answer:-7x(to the power of 2)-3y+4x-2y(to the 3rd power)-7x( to the third power)

Step-by-step explanation:

Collect like terms

5 0
3 years ago
Need all these tomorrow!!!!! thank you all soooooOOOOOOooOoOOooOOoO much!!!!!
nordsb [41]
1.) 6% of 38 1% of 38 = 3.8 ( you just move the decimal placement over by one. 1% * 6 = 6% 3.8 * 6 = 6% 3.8 * 6 = 22.8 6% =22.8 2.) 5% of 90 90/5 = 5% 90/5 = 18 18 = 5% 3.) 15/5 = 9/x 15/5 = 3 3 = 9/x (nine divided by ? is three?....3!) 3 = 9/x(3) 3 = 9/3 3 = 3 x = 3 4.) 1/12 = .8/x Multiply each side by ten. 1/12 * 10 = 5/6 .8/x * 10 = 8/x 5/6 = 8/x Cross Multiply (switch the second numbers around) 5x = 6*8 Simplify 5x = 48 Divide both sides by 5 to get x by itself 5x/5 = x 48/5 = 9.6 *Whoo last problem lol* 5.) A three liter bottle costs $2.97 what is the unit rate. Well the unit is the object we're talking about, in this case a liter bottle. The unit rate is how much it costs or is per unit. Now that that's out of the way... 3L = 2.97 Like the other problems we want to get x by itself, so we'll divide by three) 3L/3 = L 2.97/3 = .99 L = .99 The Unit Rate is $0.99 per liter bottle. Hope this helped :)
3 0
3 years ago
Determine which equations below, when combined with the equation 3x minus 4y equals 2, will form a system with no solutions. cho
kirill115 [55]
The two equations would yield no solution if they are dependent. That means that both equations are equivalent. You can determine this by manipulating the equations through simplification. For example, a dependent equation would be:

3x - 4y = 2
3x/2 - 2y = 1

Another dependent equation is when you multiply the whole equation with a number, say 3.
(3x - 4y = 2)3
9x - 12y = 6
8 0
3 years ago
What is the slope of the line passing through (2,9) and (2,-14)
Brilliant_brown [7]

Answer:

The slope is undefined

Step-by-step explanation:

When graphed, the two points form a vertical line, since we can't divide the slope by zero thw slope is considered as undefined

6 0
3 years ago
In two or more complete sentences, compare the number of x-intercepts in the graph of f(t) = t2 to the number of x-intercepts in
Strike441 [17]
F rests at (0/0) and grows upwards, so there is only a single x-intercept. g is f moved 3 to the left, so it also only has one intercept but at (-3,0).
6 0
3 years ago
Read 2 more answers
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