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Andrews [41]
2 years ago
5

A circle has a circumference of 907.46 units. What is the diameter of the circle?

Mathematics
2 answers:
natulia [17]2 years ago
6 0

Answer:

d=288.8535units

Step-by-step explanation:

Given:

C=907.46 units

With the information given, we can use the circumference formula to find the diameter. We need to solve for r.

C=2\pi r

907.46=2\pi r

453.73=\pi r

144.426744658=r

We just found the radius. To find the diameter, we have to multiply the radius by 2.

2r=d

2(144.426744658)=d

d=288.853489316

This would be your final answer, you should probably round to the hundredths or thousandths place.

Bas_tet [7]2 years ago
5 0

Answer:

d≈288.85

C Circumference  

907.46

Step-by-step explanation:

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In a recent year, a sample of grade 8 Washington State public school students taking a mathematics assessment test had a mean sc
Daniel [21]

Answer:

The  number is  N  =1147 students

Step-by-step explanation:

From the question we are told that

    The population mean is  \mu  =  281

     The standard deviation is  \sigma  =  34.4

    The sample size is  n = 2000

percentage of the would you expect to have a score between 250 and 305 is mathematically represented as

      P(250 <  X <  305 ) =  P(\frac{ 250 - 281}{34.4 }  <  \frac{X - \mu }{\sigma }  < \frac{ 305 - 281}{34.4 }   )

Generally  

             \frac{X - \mu }{\sigma }  =  Z  (Standardized \ value \  of  \  X )

So  

         P(250 <  X <  305 ) =  P(-0.9012<  Z

       P(250 <  X <  305 ) = P(z_2 < 0.698 ) -  P(z_1 <  -0.9012)

From the z table  the value of  P( z_2 < 0.698) =  0.75741

                                         and  P(z_1 < -0.9012) =  0.18374

     P(250 <  X <  305 ) = 0.75741 - 0.18374

      P(250 <  X <  305 ) =  0.57

The  percentage is  P(250 <  X <  305 ) =  57\%

The  number of students that will get this score is

           N  = 2000 * 0.57

           N  =1147

6 0
2 years ago
Eight times the reciprocal of a number equals 2 times the reciprocal of 9. Find the number
vfiekz [6]

Answer:

8 * 1/x = 1/9 *2

7 0
2 years ago
Ramina found the length of two pieces of ribbon to be 47.6 inches and 39.75 inches. Which is an effective estimation strategy fo
lukranit [14]

Answer:

<h3>Add 47.6 and 39.75, then round the answer</h3>

Step-by-step explanation:

If Ramina found the length of two pieces of ribbon to be 47.6 inches and 39.75 inches, the effective strategy of finding the sum of the two lengths is to:

1) First is to add the two values together

47.6 + 39.75

= (47+0.6)+(39+0.75)

= (47+39)+(0.6+0.75)

= 86 + 1.35

= 87.35

2) Round up the answer to nearest whole number.

87.35 ≈ 87 (note that we couldn't round up to 88 because the values after the decimal point wasn't up to 5)

Option C is correct

7 0
2 years ago
Read 3 more answers
In Martian Poker, the game is played with 8 cards drawn from a 52 card deck.
WITCHER [35]

Step-by-step explanation:

In Martian Poker, the game is played with 8 cards drawn from a 52 card deck.

What is the probability of a Martian drawing “two trips and a pair". They get 2

three of a kinds and a pair.

6 0
1 year ago
Zachary weighs 37 kilograms 95 grams. Gabe weighs 4,650 grams less than Zachary. Harry weighs 2,905 grams less than Gabe. How mu
Archy [21]
First make the numbers the same.
37 kilograms is 37000 grams, for there are 1000 grams in a kilograms.
Zachary weighs 37095 grams
37095-4650= Gabes weight = 32445 grams
32445-2905= Harry's weight = 29540 grams or 29,54 kilograms
5 0
2 years ago
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