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pshichka [43]
3 years ago
12

The area of a square is 16 square units. Since 42 = 16 and (-4)2 = 16, both 4 and -4

Mathematics
2 answers:
Elodia [21]3 years ago
3 0

It is true that (-4)^2 = 16; however, it doesn't make sense to have a square with a negative side lengths. Lengths and distances must be positive numbers.

So in many problems, we'll just ignore the negative solution to equations like x^2 = 16. It makes sense to only consider x = 4 for situations like this.

Vikentia [17]3 years ago
3 0
67572882737478282847474738374
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Please help me out with this so I can keep my kitten.
notka56 [123]

Answer:

y = \frac{32}{3}

Step-by-step explanation:

Firstly, move over the negative 3/4 fraction (don't forget to swap the operation i.e subtract to add):

\frac{y}{8} = \frac{7}{12}  + \frac{3}{4}

Now, to add the two fractions, simply multiply the numerator and denominator by 3:

\frac{3*3}{4*3} = \frac{9}{12}

Now add this to the other fraction:

\frac{9}{12} + \frac{7}{12} = \frac{16}{12}

This can be simplified down by dividing both the numerator and denominator by 4:

\frac{4}{3}

Which now simplifies the original equation to:

\frac{y}{8}  = \frac{4}{3}

Remove the y out of the fraction:

\frac{1}{8}y = \frac{4}{3}

Now multiply both sides by 8:

(\frac{1}{8}y) * 8 = (\frac{4}{3}) * 8

y = \frac{4*8}{3}

y = \frac{32}{3}

Hope this helps!

5 0
3 years ago
Read 2 more answers
Alex purchased
Aleks [24]

Answer:

1/11 of a gallon

Step-by-step explanation:

He used 2/11 of 1/2 gallon

2/11 * 1/2 = 1/11 of a gallon

5 0
2 years ago
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abby and her 5 friends went to a restaurant to buy sodas. if they bought 2 of each size soda which expression should be used to
I am Lyosha [343]
If they EACH bough 2 of EACH size soda, then it would be.

S: # of different sized sodas
P: Price of soda

5×2(S×P)

but if each sized sodas cost a different amount it would be

S: Price of first size
S2: Price of second size
S3: Price of third size
and so on.

5×2(S+S2+S3...)

but if they all together bought 2 of EACH size soda, then it is.

2(S×P)

but if each sized sodas cost a different amount it would be

S: Price of first size
S2: Price of second size
S3: Price of third size
and so on.

2(S+S2+S3...)
8 0
3 years ago
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elixir [45]

Answer:

a) 3/4

b) 75%

Step-by-step explanation:

5 0
3 years ago
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The perimeter of a rectangular dining room is 22 meters. The dining room is 3 meters wide. How long is it?​
Maksim231197 [3]

Answer:

8 meters

Step-by-step explanation:

perimeter of a rectangular figure = 2( length + width)

=> 22 = 2 ( length + 3)

  • dividing both sides by 2

=> 11 = length + 3

  • subtracting 3 from both sides

=> length = 8

7 0
3 years ago
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