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IgorLugansk [536]
2 years ago
12

The circumference of a circle is 31.4 inches. Enter the radius of the circle, in inches. Round your answer to the nearest whole

number.
Mathematics
1 answer:
Masteriza [31]2 years ago
3 0

Answer:

Should be 5 in.

Step-by-step explanation:

C=2*Pi*R

31.4=2*3.14*R

substitute 5 for radius= 2*5=10

10*3.14=31.4

You might be interested in
Please help!
Paraphin [41]
#1) A
#2) E
#3) C
#4) 0.5840
#5) 0.6945
#6) 0.4911
#7) D
#8) G
#9) 0.4375
#10) 0.5203

The formula we use for this is
v_w=f\lambda,
where v_w is the speed of sound, f is the frequency (or pitch) of the note, and λ is the wavelength.

#1) 0.77955f = 343

Divide both sides by 0.77955:
0.77955f/0.77955 = 343/0.77955
f = 439.997 ≈ 440. This is the pitch for A.

#2) 0.52028f = 343
Divide both sides by 0.52028, and we get f = 659.260.  This is the pitch for E.

#3) 0.65552f = 343
Divide both sides by 0.65552, and we get f = 523.25.   This is the pitch for C.

#4) 587.33λ = 343
Divide both sides by 587.33 and we get λ = 0.583999 ≈ 0.5840.

#5) 493.88λ = 343
Divide both sides by 493.88, and we get λ = 0.6945.

#6) 698.46λ = 343
Divide both sides by 698.46 and we get λ = 0.49108 ≈ 0.4911.

#7) 0.5840f = 343
Divide both sides by 0.5840 and we get f = 587.3288 ≈ 587.33.  This is the pitch for D.

#8) 0.4375f = 343
Divide both sides by 0.4375 and we get f = 784. This is the pitch for G.

#9) 783.99λ = 343
Divide both sides by 783.99 and we get λ = 0.4375.

#10) 659.26λ = 343
Divide both sides by 659.26 and we get λ = 0.52028 ≈ 0.5203.
6 0
2 years ago
Write it as a single logarithm
WINSTONCH [101]

Answer:

0

Step-by-step explanation:

log b (3-3)

log b (0)

6 0
2 years ago
Initially Sam receives $40 and every year she receives a deposit that increases the amount by $20 from
erastova [34]

Answer:

1080

Step-by-step explanation:

5 0
3 years ago
The sum of two numbers is 14. The first number is 2/5 of the second number. What are the numbers?​
zlopas [31]

Answer:

4 and 10

Step-by-step explanation:

To solve this problem, we need to find all the numbers between 1 and 13 that have a sum of 14. The list is shown below:

1 + 13,   2 + 12,   3 + 11,   4 + 10,   5 + 9,   6 + 8,   7 + 7

Now we must figure out which set of numbers include one number that is 2/5 of the value of the other. We can do that by turning the sets of numbers into fractions as shown below:

\frac{1}{13}\neq \frac{2}{5}

\frac{2}{12}\neq \frac{2}{5}

\frac{3}{11}\neq \frac{2}{5}

\frac{4}{10}= \frac{2}{5}    (answer)

\frac{5}{9}\neq \frac{2}{5}

\frac{6}{8}\neq \frac{2}{5}

\frac{7}{7}\neq \frac{2}{5}

8 0
3 years ago
Find all the roots of the polynomial equation<br><br> x^3-2x^2+5x-10=0
saul85 [17]

Step-by-step explanation:

x^3+x^2+4x+4=0

x³+x²+4x=-4

x(x²+x+4)=-4

either

x=-4

or

x²+x+4=-4

x²+x+4+4=0

x²+x+8=0

comparing with ax² +bx+c

a=1

b=1

c=8

x={-1±√{1²-4×1×8}}/2×1

x={-1±√{-31}}/2

7 0
2 years ago
Read 2 more answers
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