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iragen [17]
2 years ago
13

1. Mary is making a necklace by alternating red, yellow, and green beads. In

Mathematics
1 answer:
Feliz [49]2 years ago
6 0

Answer:    20/ 60 = 1/3

Step-by-step explanation:

60 beads in total which makes that the denominator and how many red beads in the numerator (20) then just reduce the fraction

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How many more dollars does she need
Ipatiy [6.2K]
Well for 5 movies, you do f(5) which is 32. So take 12 away from that because she already has 12, means that she still needs $20.
7 0
3 years ago
Solve for x in the equation x squared + 2 x + 1 = 17.
Papessa [141]

Answer:

x = - 1 + \sqrt{17}\\and\\x = - 1 - \sqrt{17}\\

Step-by-step explanation:

given equation

x^2 +2x +1 = 17

subtracting 17 from both sides

x^2 +2x +1 = 17\\x^2 +2x +1 -17= 17-17\\x^2 +2x - 16 = 0\\

the solution for quadratic equation

ax^2 + bx + c = 0 is given by

x = x = -b + \sqrt{b^2 - 4ac} /2a \\\\and \ \\-b - \sqrt{b^2 - 4ac} /2a

________________________________

in our problem

a = 1

b = 2

c = -16

x =( -2 + \sqrt{2^2 - 4*1*-16}) /2*1 \\x =( -2 + \sqrt{4  + 64}) /2\\x =( -2 + \sqrt{68} )/2\\x = ( -2 + \sqrt{4*17} )/2\\x =  ( -2 + 2\sqrt{17} )/2\\x = - 1 + \sqrt{17}\\and\\\\x = - 1 - \sqrt{17}\\

thus value of x is

x = - 1 + \sqrt{17}\\and\\x = - 1 - \sqrt{17}\\

3 0
2 years ago
If f(x) = 4 x^2 and g(x) = x+1, find (f•g)(x)
BaLLatris [955]

Answer:

D assuming the black dot means multiplied

Step-by-step explanation:

6 0
3 years ago
What is the answer to 7 7/8 - 3 1/4=
GenaCL600 [577]
4 5/8

Take 7 - 3 = 4 as the whole number 
Then take 1/4 change it to 5/8 by multiplying 1 x 2 = 2 then 4 x 2 = 8  = 2/8 
Take 7/8 - 2/8 = 5/8 

Answer 4 5/8
8 0
3 years ago
PLEASE HELP Provide 3 examples of how Franklin Delano Roosevelt changed the course of history 5-8 sentences PLEASE SOMEONE WHO W
Vesna [10]
Well, there are a lot of ways in which President Roosevelt impacted the US. He brought a nation to the brink of disaster from the Great depression and helped overcome it with his New deal which gave a lot of people jobs and helped rebuild America because of the CCC, among other programs in the New Deal. He also guided America through World War 2 and created peace between nations by signing the Atlantic Charter which then was the basis for the United Nations. As you can see President Roosevelt did alot to help America, he was a very good president



8 0
2 years ago
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