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Rus_ich [418]
3 years ago
13

These lines are below are parallel if the slope of the green line is -4 what is the slope of the red line

Mathematics
2 answers:
Alja [10]3 years ago
7 0

Answer:

The slope would also be -4.

Step-by-step explanation:

This is because parallel lines have the exact same slope. Since these two lines are parallel and the first has a slope of -4, the second must as well.

Daniel [21]3 years ago
6 0

Answer: The correct answer is -4 :)

Step-by-step explanation:

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You have two parents, four grandparents, eight greatgrandparents, and so forth.
Leviafan [203]
A.
In the first generation we have 2 ancestors.
In the second generation we have 4 ancestors or 2^{2} ancestors.
In the third generation we have 8 ancestors ot 2^{3} ancestors.

We can see that each succesive generation has two times more members. The sum is:
2+4+8+16+...+ 2^{40}

To calculate number of ancestors we can use formula <span>for the sum of a geometric sequence. Geometric sequence is sequence of numbers that differ by a certain factor. This factor is called ratio. Formula is:
</span>S= a_{1} * \frac{1- r^{n} }{1-r}
<span>Where:
S -> sum
a1 -> first member of a sequence
r -> ratio
n -> number of elements

For this question:
a1 = 2
r = 2
n = 40
</span>S= 2* \frac{1- 2^{40} }{1-2} =2 199 023 255 550
<span>
b.
1 generation = 25 years
40 generations = 40 * 25 = 1000 years

c.
Total number of people who have ever lived = </span>10^{10}
Number of ancestors in 40 generations = 2.2*10^{12}

The number of ancestors is greater than total number of people who have ever lived. This means that not all ancestors were distinct and that in each generation both men and women had children with more than one partner.
8 0
3 years ago
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Free_Kalibri [48]
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2 years ago
What is the value of the expression 2x3y when x= −2 and y = 3?
klemol [59]
I think it’s -36, not 100% sure though
6 0
2 years ago
A Number is multiplied by itself. The product is 5 4/9 Find the number​
Over [174]

Answer:

it is 2/3

Step-by-step explanation

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8 0
2 years ago
Read 2 more answers
you correctly answered 2/3 of the questions on your history exam there were 75 questions on the exam how many questions did you
GaryK [48]
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8 0
2 years ago
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