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Lena [83]
3 years ago
7

Combine like terms to simplify the expression: -7x + 3y - 2 + 6x - 1 - y2

Mathematics
2 answers:
diamong [38]3 years ago
5 0
It seems that the expression is - 7x + 3y - 2 + 6x -1 - y^2

like terms:

-7x + 6x = - x

3y stands alone

-2 - 1 = -3

- y^2 stands alone

Answer: - x + 3y - 3 - y^2

[note: if the last term is not y^2 but 2y, then you have to combine +3y - 2y = y and the answer would be - x + y - 3]
grigory [225]3 years ago
3 0
-x+y-3
this is the final answer
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Person A buys 12 granola bars and 7 cups of yogurt for $15.50. Person B buys 6 granola bars and 11 cups of yogurt for $11.50. Fi
nlexa [21]

By trial and error, I got it first correctly. The granola bars cost $1 each and the yogurt is $.50 per cup. By plugging this in to each equation, you'll see that 12 granola bars equals $12, and 7 cups of yogurt equals $3.50, for a total of $15.50. The second account would produce $6 + $5.50, which equals $11.50.

3 0
3 years ago
PLEASE HELP!! I NEED THIS TO PASS.
Tanzania [10]
Let's apply the Law of Cosines here.  We want the measure of the angle opposite the side with length 16.

Call that angle C.

Then 16^2 = 36^2 + 28^2 - 2(36)(28)cos C.

Solving for C:  cos C = 16^2 - 36^2 - 28^2 
                                     -------------------------  = 0.904, and C = 0.44 rad
                                         -2(28)(36)                           or  C = 25.21 degrees

So each of the 2 equal angles shown has the measure 25.21 degrees.

Unfortunately, I don't know the direction we should go from this point on.




3 0
3 years ago
100% of 80 is what number?<br> Select one:<br><br> 160<br><br> 80<br><br> 8<br><br> 100
beks73 [17]

Answer:

80

explanation:

100% means that its the whole of something so all of the said number

7 0
3 years ago
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Mark and his three friends ate out at Applebee’s. (Hint* 4 total people)
ICE Princess25 [194]

Answer:

16 each

Step-by-step explanation:

15.71

3 0
2 years ago
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-2/3 x - 1 =19 yeah its -2over3 with x to the right then -1 = 19
baherus [9]

Answer:

x = 30

Step-by-step explanation:

Given the expression

-2/3 x - 1 =19

We are to find the value of x

Add 1 to both sides

2/3 x -1 +1 = 19+1

2/3 x =20

Multiply

2/3x × 3 = 20×3

2x = 60

x = 60/2

x = 30.

Hence the value of x is 30

5 0
2 years ago
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