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nikdorinn [45]
3 years ago
8

-x-8y=-18 x +9y=21 A) (-6,3) B) (6, -3) c) (6,9) D) (6,3)

Mathematics
1 answer:
gavmur [86]3 years ago
7 0

Answer:

A) (-6,3)

Step-by-step explanation:

-x-8y=-18

x +9y=21

Add the two equations together to eliminate x

-x-8y=-18

x +9y=21

-------------------

y = 3

Now we need to find x

x +9y = 21

Substitute in y

x +9(3)  =21

x+27 = 21

Subtract 27 from each side

x+27-27 = 21-27

x = -6

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If H is the circumcenter of triangle BCD, find each measure. CD, CE, HD, GD, HG, HF
Levart [38]

Answer:

H is the circumcenter of triangle BCD

  • CD = 2FD = 2*32 = 64
  • CE = BE = 26
  • HD = HC = 33
  • GD = 1/2BD = 1/2(58) = 29
  • HG = √HD ²-GD² = √33²-29² = 2√62 ≈ 15.75
  • HF = √HD ²-FD² = √33²-32² =√65 ≈ 8.06
7 0
3 years ago
In choosing this year 327 voted musical and 115 voted drama. How many more students voted musical than drama
Lapatulllka [165]

Answer:

212 more student voted musical than drama .

Step-by-step explanation:

As given

In choosing this year 327 voted musical and 115 voted drama.

More students voted musical than drama = Total students voted for musical - Students voted for drama .

Putting values in the above

More students voted musical than drama = 327- 115

                                                                      = 212

Therefore 212 more student voted musical than drama .

5 0
3 years ago
Chloe kicks a soccer ball across a field. The height of the ball above the ground is given by the equation
Reika [66]

Answer:

It takes 3.5 seconds for the ball to hit the ground

Step-by-step explanation:

By finding the x intercepts you can determine when the ball hits the ground.

the second x intercept is (3.5,0), which means the ball hits the ground at 3.5 seconds

4 0
3 years ago
PLEASE HELPPPPPPP
uysha [10]

Answer:

the answer would be 1,-8

6 0
2 years ago
What do you do to find m?
lesya692 [45]
Ok here is how to solve these I hope this helps
7       =      2-5m
+5m           +5m
7+5m =     2
-7               -7
5m      =    -5
/5              /5
m=-1


<span>-Hope this helps :)</span>
8 0
3 years ago
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