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Elenna [48]
3 years ago
12

C=2πr Solve for r R=2π/C R=C/2π R=2C/π R=π/2C

Mathematics
1 answer:
Evgen [1.6K]3 years ago
7 0
I hope this helps you


2pi.r=C


r=C/2pi
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Brendan has 33 coins in his pocket, all of which are dimes and quarters. if the total value of his change is 615 cents, how many
Amanda [17]
If all were dimes, the value would be $3.30. Brendan has $2.85 more than that. Each quarter that replaces a dime increases the value by $0.15, so Brendan must have $2.85/$0.15 = 19 quarters.

Brendan has 14 dimes and 19 quarters.
6 0
3 years ago
Chose 1 answer:<br> A. 5.4<br> B. 5-4<br> C. 4/5<br> D. 5/4
umka2103 [35]

Answer:

D. 5/4

Step-by-step explanation:

A. 5.4 can't be 'cause the shade did not reach 5 on number line.

B. 5 - 4 = 1 can'e be 'cause it pass 1.

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3 years ago
In JKL, k=4.1 cm,j=3.8 cm and angle J=Q3^ Find all possible values of angle K , to the nearest inch of a degree .
spayn [35]

Answer:

74.0°

Step-by-step explanation:

In triangle JKL, k = 4.1 cm, j = 3.8 cm and ∠J=63°. Find all possible values of angle K, to the  nearest 10th of a degree

Solution:

A triangle is a polygon with three sides and three angles. Types of triangles are right angled triangle, scalene triangle, equilateral triangle and isosceles triangle.

Given a triangle with angles A, B, C and the corresponding sides opposite to the angles as a, b, c. Sine rule states that for the triangle, the following holds:

\frac{a}{sin(A)}=\frac{b}{sin(B)}=\frac{c}{sin(C)}

In triangle JKL, k=4.1 cm, j=3.8 cm and angle J=63°.

Using sine rule, we can find ∠K:

\frac{k}{sin(K)}=\frac{j}{sin(J)}   \\\\\frac{4.1}{sin(K)}=\frac{3.8}{sin(63)}  \\\\sin(K)=\frac{4.1*sin(63)}{3.8}\\\\sin(K)=0.9613\\\\K=sin^{-1} (0.9613)\\\\K=74.0^o  \\

6 0
3 years ago
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madreJ [45]
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : 

                    <span> x^2-14*x+31-(63)=0                     </span><span>x = 16
</span>
4 0
3 years ago
Read 2 more answers
Can someone please help me? 100% sure please
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Part C

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b = gloves' price
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3 years ago
Read 2 more answers
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