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RUDIKE [14]
3 years ago
5

Calculati:

Mathematics
1 answer:
kramer3 years ago
5 0

Answer:

7

Step-by-step explanation:

[(1/3 – 1/9)² + (1/3)³] : (1/3)⁴

Next, we shall simplify (1/3 – 1/9)². This is illustrated below:

(1/3 – 1/9)² = ((3 – 1)/9)² = (2/9)²

[(1/3 – 1/9)² + (1/3)³] : (1/3)⁴

= [(2/9)² + (1/3)³] : (1/3)⁴

= [4/81 + 1/27] : 1/81

= [(4 + 3)/81 ] : 1/81

= 7/81 : 1/81

= 7/81 ÷ 1/81

Invert

= 7/81 × 81/1

= 7

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What statement is used to prove quadrilateral ABCD is a parallelogram
Nookie1986 [14]

Answer:

I believe D is the answer. (Triangles BPA and DPC are congruent.)


Angles BAD and ADC are not congruent.

Sides CD and DA are also not congruent


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4 years ago
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The number of coins Jada will have on the eighth day, if Jada starts with one coin and the number of coins doubles every day. (S
Katyanochek1 [597]

Answer:

256 Coins

Step-by-step explanation:

On the first day, Jada starts with one coin, so all you have to do here is multiply it by 2.

Day 1: 2 coins

Day 2: 2 x 2 = 4 coins

Day 3: 4 x 2 = 8 coins

Day 4: 8 x 2 = 16 coins

Day 5: 16 x 2 = 32 coins

Day 6: 32 x 2 = 64 coins

Day 7: 64 x 2 = 128 coins

Day 8: 128 x 2 = 256 coins

Hope this helps! Just message me if you have more questions or need more help! :)

8 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST AND EXTRA POINTS!
Amanda [17]
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4 0
3 years ago
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Flura [38]

Answer:

Number 3 5x + 2y =z

Step-by-step explanation:

4 0
3 years ago
a book store cost $80 a day to keep open, and it spends $15 for each book that it sells. if each book sells for $23, what is the
aalyn [17]

The break even point for this book store is 10

<em><u>Solution:</u></em>

Given that, book store cost $80 a day to keep open, and it spends $15 for each book that it sells

Cost to open the book store = $ 80

<em><u>The formula for solving the break even point (BEP) is:</u></em>

BEP = \frac{\text{Fixed cost}}{\text{Selling price - variable cost}}

Fixed Cost is the cost that remains constant whether the services provided or products sold increases or decreases

Variable Cost is the cost that varies or differs in proportion to the products or services produced, whether they increased or decreased

In this problem,

Fixed cost = $ 80

Selling price = $ 23

Variable cost = $ 15

Therefore,

BEP = \frac{80}{23-15}\\\\BEP = \frac{80}{8}\\\\BEP = 10

Thus break even point for this book store is 10

In order for the bookstore to continue its business, it should sell at least 10 books to meet its $80 cost

6 0
4 years ago
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