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Leokris [45]
3 years ago
14

What are the solutions to this equation? 7x2 − 28 = 0

Mathematics
1 answer:
valentina_108 [34]3 years ago
8 0

Answer:

x = 2 or x = -2

Step-by-step explanation:

7x^2 - 28 = 0

7x^2 = 28

x^2 = 28/7 = 4

x = root(4)  or  x = -root(4)

x = 2 or x = -2

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Is -5 2/3 the multiplicative inverse of 3/-17? ​<br><br>PLEASE HELP!!
Ostrovityanka [42]

Answer:

Yes

Step-by-step explanation:

Multiplicative Inverse of rational number:

       When we multiply a rational number and its multiplicative inverse, we get 1

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  Now,multiply this with (3/-17)

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So, -5 2/3  is the multiplicatice inverse of 3/-17

3 0
2 years ago
Help please :) thanksss
Ahat [919]

Answer:

I agree with your answer

Step-by-step explanation:

4 0
3 years ago
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A bowling alley and a skating rink both offer birthday party rentals. The bowling alley costs $5 per person plus a $15 room rent
Gala2k [10]
For example: if you chose to invite 10 people the skating rink would cost a total of $50 including the room fee

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8 0
3 years ago
Factor the expression completely.
RSB [31]

 -9.75 + 3.25x

= -3.25(3) + 3.25(x)

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3 0
3 years ago
Image down below plz help
aleksley [76]

Answer:

12 boys and 18 girls

Step-by-step explanation:

the ratio from boys to girls is 2 to 3

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4 0
3 years ago
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