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sp2606 [1]
3 years ago
14

HURRY I NEED HELP!!!!!!!!!!!!! A circle is drawn within a square as shown.

Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
5 0

Answer:

Step-by-step explanation:

Anton [14]3 years ago
3 0
The width of the square is 7 cm. This is also the diameter of the circle.

To find the area of the square, you do 7², which is 49 cm². 

To find the area of a circle, you do πr².

The radius is half the diameter, so it's 7 ÷ 2, which is 3.5 cm.

π3.5² ≈ 38.4845100065 cm².

The shaded region is the area of the square minus the area of the circle.  

49 - 38.4845100065 = <span>10.5154899935, but because you're using 3.14 to approximate pi, the closest answer is 10.54 cm</span>².

The answer is 10.54 cm².
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nadya68 [22]
The correct answer is 27
3 0
3 years ago
4m=n+7 3m+4n +9 =0 ​
Vlada [557]

Answer:

n=-3

m=1

Step-by-step explanation:

get m by itself then plug it in for the other m and solve, then solve for n.

3 0
3 years ago
24. Seven tenths of a number plus 14 is less than forty-nine.<br>​
andriy [413]

Answer:

50. ☺️☺️

Step-by-step explanation:

I'm going to assume you need this inequality solved.

First, write it as numbers, not words.

7/10n + 14 < 49

where "n" is the unknown number.

Second, if I were you, I'd change that fraction into a decimal, as it'll make life easier later on.

7/10 = 0.7

Now, solve it like you would any other equation.

0.7n + 14 < 49

0.7n +14 - 14 < 49 - 14

0.7n < 35

0.7n ÷ 0.7 < 35 ÷ 0.7

n < 50

The answer is n < 50

7 0
3 years ago
Read 2 more answers
HELP PLEASE!!<br> 100 POINTS!!
Brut [27]

Answer:

x=2

Step-by-step explanation:

We are given:

\displaystyle \frac{w^{-x+4}}{w^{-3}}=w^{2x+1}

First, by the quotient property:

w^{(-x+4)-(-3)}=w^{2x+1}

Since they both have the same base, their exponents must be equivalent:

(-x+4)-(-3)=2x+1

Solve for x. Simplify:

-x+7=2x+1

Therefore:

3x=6\Rightarrow x=2

4 0
3 years ago
Read 2 more answers
Simplify: (5x2 - 8x + 2) - (7x + 2x2 - 5)
Allushta [10]

Answer: =3x^2-15x+7

Step-by-step explanation:

\left(5x^2-8x+2\right)-\left(7x+2x^2-5\right)

=5x^2-8x+2-\left(7x+2x^2-5\right)

=5x^2-8x+2-7x-2x^2+5

=3x^2-15x+7

7 0
3 years ago
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