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seraphim [82]
2 years ago
15

Solve the equation x^2-18x+21=-3x to the nearest tenth

Mathematics
2 answers:
pav-90 [236]2 years ago
4 0

Answer:

x=1.6 and x=13.4

Step-by-step explanation:

First we must bring -3x over to the left side by addin git the both sides

Maru [420]2 years ago
3 0

Answer:

x=13.4 or x=1.6

Step-by-step explanation:

use the quadratic formula x= -b±√(b²-4ac) all divided by 2

Where a = 1 b= -15 c=21

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In the figure below, FH= 14 and GH=6. Find FG.
Katyanochek1 [597]

Answer:

Let's see what to do buddy....

Step-by-step explanation:

_________________________________

FG = FH + HG ----¢ FG = 14 + 6 = 20

FG = 20

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

4 0
3 years ago
Solve for x <br><br> Please help
Elodia [21]

Answer:

The answer to your question is below

Step-by-step explanation:

1) Alternate interior angles measure the same

       10x - 10° = 100°

       10x = 100° + 10°

        10x = 110°

           x = 110° / 10°

           x = 11°

2) Alternate exterior angles measure the same

       x + 99° = 90°

       x = 90° - 99°

       x = -9°

3) Supplementary angles measure 180°

       (6x + 12) + (14x + 8) = 180°

        6x + 12 + 14x + 8 = 180°

        20x + 20 = 180

        20x = 180 - 20

        20x = 160

            x = 160 / 20

            x = 8

4)  Alternate exterior angles measure the same

           26x + 1 = 131°

            26x = 131° - 1°

            26x = 130°

            x = 130° / 26°

            x = 5

5) Consecutive interior angles measure 180°

             x + 100 + 85° = 180°

             x + 185 = 180

            x = 180 - 185

              x = -5

             

6) Corresponding angles measure the same

            7x - 7 = 70

            7x = 70 + 7

            7x = 77

              x = 77 / 7

              x = 11

7) Supplementary angles measure 180°

            (12x + 8) + (100°) = 180°

              12x + 8 + 100 = 180

              12x + 108 = 180

              12x = 180 - 108

              12x = 72

                  x = 72 / 12

                  x = 6

8) Consecutive interior angles measure 180°

              18x + 8x - 2 = 180°

              26x = 180 + 2

               26x = 182

                   x = 182 / 26

                   x = 7

9) Corresponding angles measure the same

               27x + 7 = 28x + 3

              27x - 28x = 3 - 7

              -1x = -4

                x = -4/-1

                x = 4

10) Consecutive interior angles measure 180°

              (x + 107) + (x + 87) = 180

               x + 107 + x + 87 =  180

               2x + 194 = 180

               2x = 180 - 194

               2x = -14

                 x = -14 / 2

                 x = -7

   

         

       

5 0
3 years ago
At a department store, a total of 12,568 DVDs were sold last year. The circle graph below shows the percentage of each type of D
Zina [86]

Answer:

C

Step-by-step explanation:

12568*.45 = 5655.6

c is best answer here

3 0
3 years ago
What is the value of 5/zwhen z=2
AveGali [126]

Step-by-step explanation:

When

z = 2

Then

5/z

= 5 / 2

= 2.5

Hope it will help :)

7 0
3 years ago
Tim spent half of his my allowance going to the movies. He washed the family car and earned 6 dollars. What was his weekly allow
puteri [66]
17 - 6 = 11
11 * 2 = 22
22 + 6 = 28
Weekly allowance = $28
4 0
2 years ago
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