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natka813 [3]
3 years ago
5

What is 4 1/3 + (5+6 2/3) ?

Mathematics
2 answers:
Vitek1552 [10]3 years ago
6 0

Answer:

16

Step-by-step explanation:

do the parenthesis first, you get 11 2/3 from that. Then do 4 1/3 + 11 2/3, you get 16

shepuryov [24]3 years ago
4 0

Answer:

16

Step-by-step explanation:

add 4 1/3 and 6 2/3 first which gets you to 11 then you add five

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Help me out :) 15 points! Show work, and only answer if you know how to do it correctly.
Volgvan

Answer:

28

Step-by-step explanation:

First u have to find the bisector,then u have to descrese 18

8 0
3 years ago
Simplify the following expression. (4x − 8)(4x + 8)
vitfil [10]

Answer:

16x^2 - 64

Step-by-step explanation:

(4x − 8)(4x + 8)

We recognize that this is the difference of squares

(a-b) (a+b) = a^2 - b^2

                 =(4x)^2 - 8^2

                 =16x^2 - 64

4 0
3 years ago
Solve the system of equations algebraically. Show all of your steps
Katyanochek1 [597]
I am going to explain this using the substitution method, considering it appears to be the best in this situation.

We know (from the bottom equation) that y can equal 3x+20. Using this knowledge, we substitute the y in the top equation for 3x+20. Now, we have an equation that looks like this:

3x+20=x^2+2x

Now we need to move x to one side and then do some radicals (square roots).
Subtract the 2x on the right (since it is smaller, negatives = NONONO), which will give you

x+20=x^2

Now, we take the square root of both sides to get

rad(x+20)=x

Now we have to simplify. 20 doesn't have a square root, but 4 goes into 20, and 4 has a square root of 2. This now becomes

2rad(x+5)

This doesn't simplify any further... we have a problem... no way to isolate x as far as my knowledge goes... Sorry, can't help you any further than that, but another person or your teacher might be able to. R.I.P...
4 0
3 years ago
Can someone help me with these Algebra 1 questions, they are pretty tough and i need help since i don't fully understand it yet.
Hatshy [7]
I will answer second attachment and after since I can't see the firs attachment



2nd attachment

if x is negative, then the first number gets infinitely small
look at the second number, the first 2 is -2 which is wrong since it should be +2
3rd option is not because if x=-2, then y=1
answer is D


3rd attachment
2nd: f(x)=60*1.15^x
3rd: no xint
6th: after 7.86 years value tripples
7th maybe: after 8 years value is 183.51, not exatly 184.00


4th attachment
nth score is
f(n)=57+4(n-1)
9th is
f(9)=57+4(9-1)
57+32=89
answer is C 89


5th
f(t)=23000(1.02)^t
t=time in years from 23000
4 0
2 years ago
Lee can type 1 1/3 pages every 15 minutes. How many hours does it take him to type 10 2/3 pages
natta225 [31]

Answer:

2 hours

Step-by-step explanation:

if you can type 1 1/3 pages every 15 minutes than you can type 5 1/3 pages every hour. you divide 10 2/3 pages by how many pages Lee can type every hour and the result is 2 hours

8 0
3 years ago
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