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Drupady [299]
3 years ago
8

Simplify the Expression 2(x +14) - (2x - 5)

Mathematics
1 answer:
elena55 [62]3 years ago
7 0

your answer would be 33.

step 1

2(+14)−1(2−5)

2+28−1(2−5)

step 2 distribute

2+28−1(2−5)

2+28−2+5

step 3 then add the numbers

2+28−2+5

2+33−2

combine

2+33−2

ANSWER IS

33

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1.) 3.06 x10^13
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3 years ago
Given parallelogram ABCD, m\angle A=5x+18 and m\angle B=3x-6 find find m\ C
WARRIOR [948]

Answer:

57

Step-by-step explanation:

Firstly, we will need to calculate what x is.

To calculate this, the important property of the parallelogram to use is that adjacent angles are supplementary.

This means A and B are supplementary while B and C are also supplementary

what we are trying to say is that they add up to be 180

Thus,

5x + 18 + 3x -6 = 180

8x +12 = 180

8x = 180-12

8x = 168

x = 168/8

x = 21

Thus, the measure of angle B is 3x-6 = 3(21) -6 = 63-6 = 57

Now, another important property of parallelograms is that opposite angles are equal. This means that angle B= C = 57

6 0
3 years ago
Daniel tosses his basketball onto the ground from his second story window.He tosses the basketball with an initial downward velo
lorasvet [3.4K]
Set the quadratic = to 0 and solve for time, t:

-16t^2 - 8t + 20 = 0

Reduce this to:

-4t^2 - 2t + 5 = 0

 Here a= -4, b= -2 and c =5.  Then,

       2 plus or minus sqrt( 4-4(-4)(5) )
t = ---------------------------------------------
                            -8
        2 plus or minus sqrt(84)
  = ------------------------------------
                          -8

Finish evaluating this.  If either outcome is negative, discard it.
The result will be the number of seconds required for the ball to hit the grnd.


4 0
3 years ago
Multiply the rational expressions 2x^2 - 4x - 6 x^2 - 4 ——————- • ——————— x + 2 2x^2 + 2x
lorasvet [3.4K]

Answer:

C =(x-3)(x-2)/x

or

x²-5x+6/x

Step-by-step explanation:

2x^2 - 4x - 6/x + 2 * x^2 - 4/2x^2 + 2x

Factorizing the given factors

1) 2x^2 - 4x - 6

= 2x^2 - 6x+2x - 6

= 2x(x-3) +2(x-3)

= (x-3)(2x+2)

2) x^2 - 4

= (x+2) (x-2)

3) 2x^2 + 2x

= 2x( x+1)

Putting the factors

(x-3)(2x+2)/x + 2   *  (x+2) (x-2)/2x( x+1)

= (x-3)(2x+2) (x-2)/2x( x+1)

= 2(x-3)(x+1) (x-2)/2x( x+1)

=(x-3)(x-2)/x

Now multiply

(x-3)(x-2) =x²-5x+6

Then the answer becomes  x²-5x+6/x

8 0
3 years ago
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