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Ira Lisetskai [31]
3 years ago
10

In a circle, the circumference and diameter vary directly. Which of the following equations would allow you to find the diameter

of a circle with a circumference of 154 if you know that in a second circle the diameter is 14 when the circumference is 44? A.154d = (14)(44) B.154/d = 44/14 C.14d = 154/44
Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
8 0
The answer is <span>B.154/d = 44/14 
</span>
<span>In a circle, the circumference (C) and diameter (D) vary directly:
C = kD
k = C/D

Circle 1: k = C1/D1
Circle 2: k = C2/D2</span>

C1/D1 = C2/D2
C1 = 154
D1 = ?
C2 = 44
D2 = 14

154/D1 = 44/14
So, the choice B. is correct.
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I ready know the answer i just need to know how to explain it plz help MARK BRAINLIEST TO THE FIRST ONE (32 points)
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Question 3<br> Show work and solve 3 = 5*+1 using change of base formula.
Romashka [77]

Answer: x=\frac{\log (3/5)}{\log 5}

Step-by-step explanation:

3=5^{x+1}\\\\\log_{5} 3=x+1\\\\x=\log_{5} 3-1\\\\x=\log_{5} 3-\log_{5} 5\\\\x=\log_{5} \left(\frac{3}{5} \right)\\\\x=\frac{\log (3/5)}{\log 5}

7 0
2 years ago
D. What value should be assigned to choosing two chips with the number 1 to make
Snezhnost [94]

The value should be assigned to choosing two chips with the number 1 to make the game fair is 5

<h3>What is probability?</h3>

It is a branch of mathematics that deals with the occurrence of a random event.

The complete question is....

Miguel is playing a game in which a box contains four chips with numbers written on them. Two of the chips have the number 1, one chip has the number 3, and the other chip has the number 5. Miguel must choose two chips, and if both chips have the same number, he wins $2. If the two chips he chooses have different numbers, he loses $1 (–$1). a. Let X = the amount of money Miguel will receive or owe. Fill out the missing values in the table. (Hint: The total possible outcomes are six because there are four chips and you are choosing two of them.) Xi 2 –1 P(xi) b. What is Miguel’s expected value from playing the game? c. Based on the expected value in the previous step, how much money should Miguel expect to win or lose each time he plays? d. What value should be assigned to choosing two chips with the number 1 to make the game fair? Explain your answer using a complete sentence and/or an equation.

Now, for fair game the expected value =0

let the amount assigned be x

So,

1/6x-5/6=0

1/6x=5/6

x=5.

Learn more about this concept here:

brainly.com/question/11905174

#SPJ1

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fiasKO [112]
It is a parallelogram
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