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nikklg [1K]
4 years ago
6

LOTS OF POINTS Please help

Mathematics
2 answers:
BabaBlast [244]4 years ago
4 0

Answer:

#1. The correct answer is C. 5b²-b-2

#2. The correct answer is A. 4x-5

Step-by-step explanation:

#1. (5b²-3b+2)+(2b-4), combine like terms. ----->  5b² doesn't have any like terms, so you would move onto -3b and 2b, -3+2= -1 or in other words, just b. Now move onto +2 and -4, 2+-4= -2. So, your answer would be 5b²-b-2.

#2. (6x-3)-(2x-2), also, combine like terms here. -------> 6x has a like term in the other set of parenthesis, 2x. So, you would subtract 6-2= 4, and you would now have 4x. Same thing with -3 and -2. -3-2= -5. So, now your answer would be 4x-5.

<em>Hope this helped you understand!! (:</em>

Komok [63]4 years ago
3 0

Answer:

1. 5b^2-b-2 (so option 3)

2. 4x-1 (so option 2)

Step-by-step explanation:

For the first one you need to just simplify the expression

For the second one you need to combine like terms

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6 0
3 years ago
The graph shows the dilation of quadrilateral MNOP with the origin as its center. Which rule describes this transformation?
lana66690 [7]

Answer:

D) (x, y) → (1/3x , 1/3 y)

Step-by-step explanation:

A dilation is a change of size, if the dilation factor is greater than 1, then the figure is enlarged.  If the dilation factor is smaller than 1, the figure is shrinked.  In both cases, the coordinates are MULTIPLIED by the dilation factor.

Among the 4 choices, only 2 are dilations.  One is with a dilation factor of 3 (A), which means the shape was enlarged.  And the other is with  dilation factor of 1/3, meaning the shape was shrinked.

Since we went from MNOP (LARGE one) to M'N'O'P' (small one), the dilation factor was < 1... so 1/3 is the answer.

Answers B and  C show a translation/movement of the shape, not a dilation.

8 0
3 years ago
How many inches are in 15 feet ?
Kay [80]
180................................................................................
6 0
3 years ago
Read 2 more answers
Find the value of Q in the following system so that the solution to the system is {(x,y) : x-3y=4}
Assoli18 [71]

Answer:

Q=2

Step-by-step explanation:

hello :

the solution to the system is

{(x,y) : x-3y=4} means infinty solution

X-3y=4 ....(*)

Qx-6y=8....(**)

multiply  (*) by -2

-2x+6y = -8 (***)

add (*) and (***) : (Q-2)x =0

this ie true for reals x when  Q=2

3 0
3 years ago
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7.5 weeks because 22÷3
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3 years ago
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