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antiseptic1488 [7]
3 years ago
7

PLEASE HELP, and dont forget to show work!

Mathematics
1 answer:
weeeeeb [17]3 years ago
6 0
Answer: -rad7, +rad7

Explanation:
- Divide the equation by 6 (x^2-7=0)
- Add 7 (x^2=7)
- Square root x to find solutions (x=rad7)
- Dont forget the radical means that there are two solutions!
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Tickets at a school play cost $4 in advance or $5 at the door. Total ticket sales for an evening production were $440. If no tic
lisov135 [29]
5x=440
×=the number of tickets sold

then you woukd just divide 440÷5=88
88 tickets were sold at the door
4 0
3 years ago
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Can someone help?
babymother [125]

Answer:

  • 0, 3, 8, 15, 24
  • y = x² + 2x

Step-by-step explanation:

<u>The pattern is</u>

  • Step 1  ⇒ 1*3 = 3
  • Step 2 ⇒ 2*4 = 8
  • Step 3 ⇒ 3*5 = 15

<u>Next step would be</u>

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<u>Step zero would be</u>

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<u>The equation</u>

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3 years ago
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Two cars leave the same parking lot, with one heading north and the other heading east.
Otrada [13]

Answer:

wouldn't it be 3 kilometers because 3 this way plus 3 that way = 6 away from each other?

8 0
3 years ago
If \: x + y + z = 0 \: then \: show \: that \: {x}^{3} + {y}^{3 } + {z}^{3} =3xy<br>​
tankabanditka [31]

Answer:

Given

x+y+z=0

⟹x+y=−z

Cubing on both sides

(x+y) 3 =(−z) 3

⟹x 3 +y 3 +3x 2y+3xy 2 =−z 3

⟹x 3 +y 3 +3xy(x+y)=−z 3

⟹x 3+y 3+3xy(−z)=−z 3

⟹x 3 +y 3−3xyz=−z 3

⟹x 3 +y 3 +z 3 =3xyz

Step-by-step explanation:

Hope it is helpful.....

8 0
3 years ago
X+3+5x= <br> x plus three plus five x equal
choli [55]

Answer:

6x+3

Step-by-step explanation:

If you're just combining like terms this is the correct answer

5 0
3 years ago
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