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3 years ago

Is the expression (3^3)-2

Mathematics

1 answer:

Ivan3 years ago

6 0

Answer:

Step-by-step explanation:

(3^3)-2=25

step by step

(3^3)=3^3

=3^3-2

=3^3=27

=27-2

so if we subtract the #: 27-2

The answer will be 25

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The school library had a used book sale. paperbacks were $2 each and hardcover books were $3 each. there were 54 paperbacks and

ANEK [815]

Answer:

Total money made is $597, $489 from hardbacks and $108 from paperbacks.

Step-by-step explanation:

$3 x 163= $489

$2 x 54= $108

total $= 3(163)+2(54)

total $= 489 + 108

total $ = 597

6 0

3 years ago

7x² + 6x - 1<br> Algebra 3|factoring

GaryK [48]

Answer:

(7 x - 1) (x + 1)

Step-by-step explanation:

Factor the following:

7 x^2 + 6 x - 1

Factor the quadratic 7 x^2 + 6 x - 1. The coefficient of x^2 is 7 and the constant term is -1. The product of 7 and -1 is -7. The factors of -7 which sum to 6 are -1 and 7. So 7 x^2 + 6 x - 1 = 7 x^2 + 7 x - x - 1 = (7 x - 1) + x (7 x - 1):

(7 x - 1) + x (7 x - 1)

Factor 7 x - 1 from (7 x - 1) + x (7 x - 1):

Answer: (7 x - 1) (x + 1)

5 0

4 years ago

2. Candles normally cost £6 each.

saw5 [17]

Answer: candies are us has a better offer

Step-by-step explanation:

for the candies r us website, the price of the candies is 30*6 then times 0.8=$144

and for waxz, if you buy 3 get 1 free, then you at least have to buy 3 candies 9 times, and that would be 18*9 which equals 162, which is more expensive then waxz

hope this helps!

please make me brainliest! thanks!

8 0

3 years ago

Please help with this, thank you

worty [1.4K]

Answer:

7.2% increase (rounded up to the nearest tenth of a percent)

Step-by-step explanation:

The price of the notebook today is $3.70

The price of the same notebook (original price) yesterday was $3.45

Increase in price = $3.70 - $3.45 = $0.25