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kakasveta [241]
2 years ago
7

How many reflection lines are there in a rotation and how are they related?

Mathematics
2 answers:
asambeis [7]2 years ago
8 0
2 parallel lines. i hope this helps !!
Vlada [557]2 years ago
4 0
There are 2 parralel lines
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Products produced by a machine has a 3% defective rate. What is the probability that the first defective occurs in the fifth ite
labwork [276]

Answer: The required probability is 0.1328.

Step-by-step explanation:

Since we have given that

n = 5

Probability of success = p = defective rate = 3% = 0.03

Probability of failure = q = 1-p = 1 - 0.03 = 0.97

So, we will use "Binomial distribution":

probability that the first defective occurs in the fifth item inspected would be

P(X=1)=^5C_1(0.03)^1(0.097)^4\\\\P(X=1)=0.1328

Hence, the required probability is 0.1328.

6 0
3 years ago
PLEASE HELP!!!<br> Find each measure
Amanda [17]

Answer:

7.)

m<1 = 141

m<2= 39

m<3 = 141

8.)

m<1 = 17

m<2 = 73

m<3 = 107

9.)

m<1 = 101

m<2 = 33

m<3 = 71

Step-by-step explanation:

use the postulates and theorems your teacher gave you.

Also you need some logic

5 0
3 years ago
Read 2 more answers
What is the ratio 5:3 to make 20 gallons​
Tomtit [17]

Answer:

2.5

Step-by-step explanation:

5x+3x=20

8x=20

x=20/8=2.5

7 0
3 years ago
Formula for 4,9,14 19 nth term ​
dusya [7]

Answer:

first get their difference and then get positions of the difference and get the factors and then you will get the nth term

6 0
3 years ago
In rectangle abcd measure of angle d =(3x+15) measure b =(6x-42) find measure of angle a
slava [35]
5) So for parallelogram ABCD, ∠B ≅ ∠D, and ∠A ≅ ∠C. Further, ∠B and ∠A are supplementary (i.e., their sum is 180°), and ∠D and ∠C are also supplementary.
So, we have that m∠B = m∠D. Therefore, 
6x-42=3x+15\\3x=57\\x=19

Now, let's substitute for x back into the expression for either ∠B or ∠D to find it's angle measure.
m∠B = 6(19)-42=72
Now, remember that ∠B or ∠D are supplements of ∠A. 
So, m∠B + m∠A = 180°.
That means m∠A = 180° – 72° = 108°.
That seems reasonable, because A appears to be an obtuse angle.
6 0
3 years ago
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