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nordsb [41]
3 years ago
10

Select all of the chords:

Mathematics
2 answers:
Nostrana [21]3 years ago
7 0
The first two
hope this helps

tensa zangetsu [6.8K]3 years ago
5 0

Answer:

The answers are CD, JS, and CT.

Step-by-step explanation:

Even though CT is a diameter, it is still a chord because a diameter is a special chord: It's the longest chord of a circle, it has 3 collinear points, and it passes through the center of a circle.

The definition of "chord" is: a straight line segments whose endpoints both lie on the circle.

You might be wondering: how is JS a chord? Well, this is why.

Since this shape is 3-D, not 2-D, then the endpoints of a chord can be anywhere on the actual sphere, not inside it, and not outside of it. It this would be a 2-D shape, or a circle, then JS would not be a chord because its endpoints aren't on the actual circle. But since this shape is a sphere, JS is a chord. <em>I hope I explained it fine. Sorry if it's confusing.</em>

CD is a chord because both of its endpoints are on the sphere.

<em>By the way, I did this assignment, and I got it wrong because I did only CD and CT, not CD, JS, and CT. But now I understand why I got it wrong, and I hope you understand, too! :)</em>

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11x7/8 pls helpp i am so close from my test being over ty
Feliz [49]

Answer:

Exact Form:

77 /8

Decimal Form:

9.625

Mixed Number Form:

9  5 /8

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
Consider the equation 1+n+6/n+1=4/n-2
Inga [223]
A. The LCD is (n+1)(n-2)

B. n = -1, n = 2

C. n = negative 1 plus or minus the square root of 73, everything divided 2.

I’ve add a picture of the answers at the bottom in case I wasn’t clear on question C.

Hope that helps.

8 0
4 years ago
Read 2 more answers
Here are the first five terms of a sequence.
Snezhnost [94]

Step-by-step explanation:

3 to 8= 5

8 to 17= 9

17 to 30= 13

30 to 47= 17

47 to 68= 21

68 to 93= 25

93 to 122= 29

122 to 155= 33

155 to 192= 37

difference is 4

solve by

2 {n}^{2}  - n + 2 \\ 2 {(9)}^{2}  - 9 + 2 \\ 2(81) - 9 + 2 \\ 162 - 9 + 2 \\ 153 + 2 = 155

5 0
3 years ago
Claire walk 7 miles this week last week she walked to 1/3 miles how many times more miles to Claire walk this week than last
Lyrx [107]
Claire walked 2.3 miles last week
6 0
3 years ago
A production process is checked periodically by a quality control inspector. the inspector selects simple random samples of 30 f
777dan777 [17]

Answer:

Population Mean = 2.0

Population Standard deviation = 0.03

Step-by-step explanation:

We are given that the inspector selects simple random samples of 30 finished products and computes the sample mean product weight.

Also, test results over a long period of time show that 5% of the values are over 2.1 pounds and 5% are under 1.9 pounds.

Now, mean of the population is given the average of two extreme boundaries because mean lies exactly in the middle of the distribution.

So,   Mean, \mu = \frac{1.9+2.1}{2} = 2.0

Therefore, mean for the population of products produced with this process is 2.

Since, we are given that 5% of the values are under 1.9 pounds so we will calculate the z score value corresponding to a probability of 5% i.e.

             z = -1.6449 {from z % table}

We know that z formula is given by ;  

                Z = \frac{Xbar - \mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

              -1.6449 = \frac{1.9 - 2.0}{\frac{\sigma}{\sqrt{n} } }     ⇒  \frac{\sigma}{\sqrt{n} }  = \frac{-0.1}{-1.6449}  

                                           ⇒ \sigma = 0.0608 * \sqrt{30}  {as sample size is given 30}

                                           ⇒ \sigma = 0.03 .

Therefore, Standard deviation for the population of products produced with this process is 0.0333.

7 0
4 years ago
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