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Lunna [17]
3 years ago
11

Perform the indicated operation.

Mathematics
2 answers:
kirza4 [7]3 years ago
7 0

Step-by-step explanation:

1st.

(7x+2×2-6x-4) - (2x+3×2-3x+11)

(7x+4-6x-4)-(2x+6-3x+11)

collect like terms

(7x-6x-4+4)-(2x-3x+11+6)

(x+0)-(-x+17)

multiply - by the bracket

x+0+x-17

collect like terms

x+x+0-17

2x-17=0

2x=17

divide both sides by the coefficient of x

2x/2=17/2

x=17/2

Ivanshal [37]3 years ago
5 0

Answer Solution:4x2 - 2x) - (-5x2 - 8x)

4x2 - 2x) - (-5x2 - 8x)= 4x2 - 2x + 5x2 + 8x.

4x2 - 2x) - (-5x2 - 8x)= 4x2 - 2x + 5x2 + 8x.= 4x2 + 5x2 - 2x + 8x.

4x2 - 2x) - (-5x2 - 8x)= 4x2 - 2x + 5x2 + 8x.= 4x2 + 5x2 - 2x + 8x.= 9x2 + 6x.

but this is the answer = 3x(3x + 2).

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HELP ASAP!!!
andreyandreev [35.5K]

Step-by-step explanation:

great circle = 9\pi = r^2.\pi --> r = 3 m

Surface area S = 4\pi.r^2 = 36\pi m^2

Volume V = 4/3\pi.r^3 = 36\pi m^3

6 0
4 years ago
What is the solution set for the inequality |-3-5x|-8<-2
castortr0y [4]
|-3-5x|-8
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3 years ago
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A football team has a net yardage of -26 1/3 yards on a series of plays. The team needs a net yardage of 10 yards to get a first
katrin [286]
Original position was let's say 40 yard line.
You must get to the 50 yard line for a first down.
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4 years ago
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s2008m [1.1K]

9514 1404 393

Answer:

  51

Step-by-step explanation:

The rule gives the sequence ...

  75, 69, 63, 57, 51, 45, ...

The 5th number in the sequence is 51.

__

<em>Alternate solution</em>

The equation for the general term of an arithmetic sequence is ...

  an = a1 +d(n -1) . . . . . for first term a1 and common difference d

Your sequence has first term 75 and common difference -6, so the equation is ...

  an = 75 -6(n -1)

Then for n=5, the term is ...

  a5 = 75 -6(5 -4) = 75 -24 = 51

The 5th term is 51.

4 0
3 years ago
If the height of a cone is cut in half, the volume of the cone is multiplied by what number?
Assoli18 [71]
We know that
volume of a cone=(1/3)*pi*r²*h

<span>If the height of a cone is cut in half
so
h=h/2
and 
new volume of a cone=</span>(1/3)*pi*r²*(h/2)----> (1/2)*[(1/3)*pi*r²*h)

the answer is
<span>the volume of the cone is multiplied by 1/2</span>
7 0
3 years ago
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