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3 years ago

If someone is smart enough to do this your a genius and I will give you a brainless

Mathematics

1 answer:

barxatty [35]3 years ago

6 0

A. 107
B. 29
C. 70
D. 73
E. 73
F. 151
G. 151
H. 110
I. 110
J. 44
K. 41
L. 107
M. 107
N. 73
O. 73
P. 44
Q. 119

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Write an equation for the line parallel to y= -2x+1 that contains (-2,5)

grin007 [14]

Answer:

y = - 2x + 1

Step-by-step explanation:

Parallels line have the same slope, when an equation is in the form y= mx + b, m is the slope. In this problem slope = - 2

Now with the slope what is missing is the y-intercept, the problem says that the line contains the point (-2, 5), replacing that point in the equation you can solve it to find the y-intercept

y = mx + b

5 = (-2)(-2) + b

5 = 4 + b

1 + b

y = - 2x +1

5 0

3 years ago

(60 + 10) 130 Solve for a

forsale [732]

Answer:

Step-by-step explanation:

here you go mate'

step 1

(60 + 10)130 equation

step 2

(60 + 10)130 simplify with the brackets

step 3

130(70) multiply the numbers

answer

9100

5 0

3 years ago

2. You are buying school supplies and pencils cost $.30 each, paper costs $1.00 a package, and a folder

zimovet [89]

the awnser is $2.17. you add 12 more cents to the $2.05 and you get $2.17

5 0

2 years ago

A card is drawn randomly from a deck of 52 cards.

Stels [109]

The probability of drawing a red face card from a deck of cards is 3/26

Explanation:

In a deck of cards, there are 6 red-faced cards.

Probability = No. of favourable events / Total no. of events

So, the probability of drawing a red-faced card is 6 out of 52 cards.

Thus, the probability of drawing a red face card from a deck of cards is 6/52 = 3/26.

8 0

3 years ago

Read 2 more answers

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 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:
 $S= a_{1} * \frac{1- r^{n} }{1-r}$
Where:
S -> sum
a1 -> first member of a sequence
r -> ratio
n -> number of elements

For this question:
a1 = 2
r = 2
n = 40
 $S= 2* \frac{1- 2^{40} }{1-2} =2 199 023 255 550$

b.
1 generation = 25 years
40 generations = 40 * 25 = 1000 years

c.
Total number of people who have ever lived = $10^{10}$
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