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Reika [66]
2 years ago
14

Help me help me help me help me

Mathematics
1 answer:
madreJ [45]2 years ago
8 0

Answer:

12.56%

Step-by-step explanation:

Total Area = bh = 10*10 = 100 square units.

Area of the red circle = \pi r^2=3.14\cdot 2^2=12.56\: square units.

\frac{12.56}{100}\cdot 100\%=12.56\%

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Please help me with these questions
Jlenok [28]
Posted 5 days ago no need for an answer now.

3 0
3 years ago
Which expression is equivalent to xy^2/9?
Law Incorporation [45]

Answer:

xy^\frac{2}{9} = x*\sqrt[9]{y^2}

Step-by-step explanation:

Given

xy^\frac{2}{9}

Required

The equivalent expression (see attachment)

We have:

xy^\frac{2}{9}

Split

xy^\frac{2}{9} = x*y^\frac{2}{9}

Apply the following laws of indices

y^\frac{m}{n} = \sqrt[n]{y^m}

So, we have:

xy^\frac{2}{9} = x*\sqrt[9]{y^2}

<em>Hence (d) is correct</em>

5 0
2 years ago
A box holding pennies, nickels and dimes contains thirteen coins with a total value of 83 cents. How many coins of each type are
Art [367]

Answer:

The number of pennies,nickels and dimes are (p,n,d)=(3,4,6).

Further explanation:

Given:

A box holding pennies, nickels and dimes contains thirteen coins in a box.

Total value is 83 cents.

Calculation:

Consider p,n and d be the number of pennies, nickel and dimes.

Now, total is 13 coins so p+n+d=13

As we know that these following are US coin.

Penny=1 cent

Nickel=5 cents

Dime=10 cents

Step 1:

The value is already given as 83 cents that is 80+3 cents.

80 cents can be possible in many combinations as follows:

(N,D)=(0,8),(2,7),(4,6),(6,5),(8,4),(10,3),(12,2),(14,1),(16,0)

It is given that the total number of cents is 13 so we choose (4,6) as (n,d) .

So the value of nickel n=4

Dimes d=6

Step 2:

The value of p is calculated as follows:

Substitute 4 for n, 6 for d in equation p+n+d=13 as follows:

p+4+6=13

p+10=13

p=13-10

p=3

Thus, the number of pennies,nickels and dimes are (p,n,d)=(3,4,6).

3 0
3 years ago
A student spends 40 minutes a day studying how many days per year does the student study?
melomori [17]
All you would have to do is do 40x365 then divide that by 24 hours and that’s you answer!
3 0
3 years ago
What does the Lorenz curve measure in the economy?
AnnZ [28]

Answer:

a graphical representation of the distribution of income or of wealth.

8 0
3 years ago
Read 2 more answers
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