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Tasya [4]
3 years ago
13

Find thr valuse of x, rounded to the nearest tenth.3.842.72.9​

Mathematics
2 answers:
ratelena [41]3 years ago
7 0

Answer:

Option 2. x = 4 is the correct option.

Step-by-step explanation:

Given parameters are two chords with the length of 6, 8 with the segments x and 3 respectively.

As we know from the theorem of secants drawn in a circle from a point outside the circle is

3 × 8 = x × 6

x = (3 × 8)/6 = 24/6 = 4

therefore x = 4 is the correct answer.

irina1246 [14]3 years ago
3 0

Answer: 4  (OPTION 2)

Step-by-step explanation:

1. To solve this problem you must apply the  Intersecting secants  theorem, as you can see below:

(A+B)B=(C+D)D

Where:

(A+B)=6

B=x\\(C+D)=8\\D=2

2. Then you must susbstitute values and solve for x, as following:

6x=24\\x=24/6\\x=4

Therefore the answer is the second option.

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Jeremy's score was 1.75 standard deviations above the mean. which kf thr following is closest to his percentile rank
Gelneren [198K]
The answer is 96%.

Explanation:
It is generally presumed that the scores are normally distributed.

1) You are given how many standard deviations from the mean Jeremy's score is. This is exactly the definition of the z-score. Therefore z = 1.75

2) Look at a left-tail z-table in order to find the area of the normal curve on the left of your z-score (see picture attached). A = 0.9599

3) Multiply the area by 100 in order to find the percentile:
<span>0.9599 </span>× 100 = 95.99
Therefore, 95.99% of the students scored less than Jeremy.

Hence, the answer is 96%.

4 0
4 years ago
Explau why 3.14 us rational but pi is not
saw5 [17]

If  3.14  is rational, why should pi also be rational ?

The answer to your question is:  Because pi is not 3.14 .

8 0
4 years ago
Determine if the sequence below is arithmetic or geometric and determine the
algol13

9514 1404 393

Answer:

  r = 2

Step-by-step explanation:

The first differences between successive terms are ...

  10 -5 = 5

  20 -10 = 10

The differences are not constant, so the sequence is NOT arithmetic.

__

The ratios of successive terms are ...

  10/5 = 2

  20/10 = 2

The ratios are constant, so the sequence is ...

  geometric with a common ratio of 2.

4 0
3 years ago
PLEASE HELP! INVERSE QUESTION!
Katena32 [7]

Last one.

Hope this helps.

3 0
3 years ago
Need help now!! 20 points!!
Gelneren [198K]

When you have something like this, all you need to do is substitute the values, the last is for what value of x

For the first one;

((x^2+1)+(x-2))(2)

(x^2+x-1)(2)

(2)^2+(2)-1

4+2-1

5

For the second one;

((x^2+1)-(x-2))(3)

(x^2-x+3)(3)

(3)^2-(3)+3

9-3+3

9

For the last one;

3(x^2+1)(7)+2(x-2)(3)

3((7)^2+7)+2((3)-2)

3(49+7)+2(3-2)

3(56)+2(1)

168+2

170

3 0
3 years ago
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