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dangina [55]
3 years ago
6

The circumference of a circle is 7π in. Find its radius, in inches.

Mathematics
2 answers:
natka813 [3]3 years ago
7 0

Answer:

\bf \huge \: 11 \: inches.

Step-by-step explanation:

<h2>Given :</h2>

  • The circumference of a circle is 7π in.

<h2>to find :</h2>

  • Find its radius, in inches.

<h2>formula used :</h2>

  • r = c/2

where,

  • r = radius
  • c = circumference

<h2>explanation :</h2>

⟼ r = c/2

⟼ r = 7×22÷7/2 in

⟼ r = 22/2 in

⟼ r = 11 in.

  • Hence, radius is <u>11 inches.</u>
mezya [45]3 years ago
4 0

Answer:

3.5 in

Step-by-step explanation:

Circumference = 2π(radius)

7π = 2π (radius)

7π/2π = radius

Pi in numerator and denominator cancel each other.

7/2  = radius

3.2 in = radius

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two dice are rolled until a sum of either 5 or 7 occurs. estimate the probability that a 5 occurs first g
Ierofanga [76]

Answer:

The correct answer is "\frac{2}{5}". A further solution is provided below.

Step-by-step explanation:

According to the question,

The probability of getting a 5 will be:

= \frac{4}{36}

= \frac{1}{9}

The probability of getting a 7 will be:

= \frac{6}{36}

= \frac{1}{6}

The probability of not a 5 nor a 7 will be:

= 1-[\frac{4}{36} +\frac{4}{36} ]

= \frac{26}{36}

= \frac{13}{18}

Now,

For roll of 2 dice,

⇒ P=\frac{1}{9} +{\frac{1}{9}\times (\frac{13}{18} ) }+{(\frac{1}{9} )\times (\frac{13}{18} )^2}+{\frac{1}{9}\times (\frac{13}{18} )^3 }+...

        =\frac{1}{9} [1+\frac{13}{18} +\frac{13^2}{18^2} +\frac{13^3}{18^3} +...]

        =\frac{1}{9} [\frac{1}{1-\frac{13}{18} } ]

        =\frac{1}{9} [{\frac{1}{\frac{5}{8} } ]

        =\frac{2}{5}

6 0
2 years ago
0.5 L/s = ml/h I need help
qwelly [4]

0.5 L/s = ml/h would be clearer if written as 0.5 L/sec = ml/hr.


Start with 0.5 L/sec:


0.5 L/sec 1000 ml 3600 sec

--------------- * ------------- * ---------------- = 1,000,000 ml/hr

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8 0
3 years ago
What is the length of segment AB?
allochka39001 [22]
The answer to this question is 8
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LiRa [457]

The answer & explanation for this question is given in the attachment below.

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3 years ago
Find the equation of a line that contains the points (−3,−1) and (−4,−7). Write the equation in slope-intercept form
BARSIC [14]

Answer:

y =6x+17

Step-by-step explanation:

First we need to find the slope

m = (y2-y1)/(x2-x1)

   = (-7- -1)/(-4 - -3)

   = (-7+1)/(-4+3)

   -6/-1

   6

The slope intercept form of the equation is

y = mx+b  where m is the slope and b is the y intercept

y = 6x+b

Substitute a point into the equation

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Add 18 to each side

17 =b

The equation is

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8 0
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