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krok68 [10]
3 years ago
14

What's the radius of a circle who's circumference is 135.648

Mathematics
2 answers:
xeze [42]3 years ago
6 0
Circumference=diamter times pi
diamter=2 times radius
circumference=radius times 2 times pi
circunference=135.648
aprox pi to 3.14
subsitute
135.648=radius times 2  times 3.14
135.648=radius times 6.28
divide both sides by 6.28
21.6=radius
aswe ris radous=21.6 units
lawyer [7]3 years ago
4 0
So, you know the circumference is 135.648, since you are trying to find the radius. We know C=π*d

135.648=3.14*d
135.648/3.14=d

thus, your diameter is 43.2

but remember, diameter is r^2

so 43.2/2

your radius is 21.6 
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SU is a midsegment of AQRT.
I am Lyosha [343]

Answer:

z = 58

Step-by-step explanation:

Since SU is a midsegment of QRT, the length of SU is one-half the length of RQ.

\frac{1}{2} (z - 40) = z - 49

z - 40 = 2z - 98

z = 58

5 0
3 years ago
Can u pls help me with this question ​
saul85 [17]

Answer:

The answer is D, 43  \frac{1}{2}

Step-by-step explanation:

If the pile gets bigger by 8 \frac{7}{12} each week, and you want to find out how big the pile is after 3 weeks, then you have to multiply 8 \frac{7}{12\\} by 3 to find out how much the pile increased by.

8 \frac{7}{12\\} × 3 = 25 \frac{3}{4}

Now, you need to add this to your initial value to get the answer.

25 \frac{3}{4} + 17 \frac{3}{4} = 42 \frac{6}{4}

Now simplify.

43 \frac{1}{2}

3 0
3 years ago
Please help me with 22 and 24
ValentinkaMS [17]
22)
The formula for the area of a circle is:
π*radius^2

Input the information we already know:
π*5^2
Follow BEDMAS
π*25
=78.5398163
Since half of the circle is shaded, divide the area by 2
78.5398163/2
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The area of the shaded sector is 39.2699081 meters²



8 0
4 years ago
Anybody know the answer?
marysya [2.9K]
I'd start by writing an equation for each of the right triangles. (Pythagorean theorem)

y² + 9² = z²
x² + z² = (4+9)²
4² + y² = x²

we want to find z so combine the equations by substituting the other variables x,y out.

substitute y² for (x² - 4²) in 1st equation.

(x² - 4²) + 9² = z²

now by rearranging the 2nd equation we can substitute x² for (13² - z²)

(13² - z²) - 4² + 9² = z²
169 - z² - 16 + 81 = z²
234 - z² = z²
234 = 2z²
234/2 = z²
117 = z²
√(117) = z
√(9*13) = z
3√(13) = z

13 goes in the box




































6 0
3 years ago
Help me please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
laiz [17]

Answer:

sound like a personal problem

Step-by-step explanation:

cuz

7 0
3 years ago
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