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charle [14.2K]
3 years ago
10

What is the simplest form of the expression 2x(x − 6) − 7x2 − (13x − 3)?

Mathematics
2 answers:
NikAS [45]3 years ago
8 0
We have the following expression:
 2x (x - 6) - 7x2 - (13x - 3)
 We will solve the expression step by step.
 We solve the parentheses:
 2x ^ 2 - 12x - 7x ^ 2 - 13x + 3
 Now we add similar terms:
 x ^ 2 (2-7) + x (-12-13) + 3
 Rewriting:
 -5x ^ 2 - 25x + 3
 Answer:
 
The simple form of the expression is:
 
B.) -5x2 - 25x + 3
Anna [14]3 years ago
5 0
First reduce the brackets
Next Expand the expression
Then gather all like terms
And lastly simplify

Answer: B) 

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Triangle L M Q is cut by perpendicular bisector L N. Angle N L Q is 32 degrees and angle L M N is 58 degrees.
Serga [27]

Answer:

Yes

Step-by-step explanation:

ΔMNL ≅ ΔQNL  by ASA or AAS

by ASA

Proof:

∠ LNM = ∠LNQ    =90

LN = LN   {Common}

∠MLN = ∠QLN     {LN bisects ∠ L}

By AAS

∠Q + ∠QLN + ∠LNQ = 180  {Angle sum property of triangle}

∠Q + 32 + 90 = 180

∠Q  + 122 = 180

∠Q = 180 -122 =

∠Q = 58

∠Q = ∠M

∠MNL =∠QNL = 90

LN = LN {common side}

8 0
3 years ago
Diego drank x ounces of juice. Lin drank 1/8 less than that.
Varvara68 [4.7K]

Answer:

Step-by-step explanation:

5 0
3 years ago
Assuming the pattern continues, what are the next two terms in this
pshichka [43]
D. 53, 107
The pattern is multiplying the previous number by two and then adding one to it.
4 0
3 years ago
Whats the length of A, B and C
kondaur [170]

Answer:

B should be 3 inches long because the area of the square above is 48 inches squared, so that long side is probably 8. B is 3 inches long. As for A, this should be simple. since we know the longer side of the room has the area of 27, we can tell the length(longest side) is 9. 14 minus 9 is equal to 4. A's width is 4 inches long.

Step-by-step explanation:

for the rest, since we know one of the widths is 6 inches, we know that the length of the room with an area of 32 inches is 8. therefore, since 8 times 4 equals the number 32, C is 4 inches long. back to B. since we know that c is 4 inches long and that there is a length of 11 inches, we can tell the longest side of room A is 7. 4 Times 7 equals 28, so B is 28 inches squared.

3 0
3 years ago
A bowl contains 3 red, 8 blue, and 7 black beads. Margaret randomly selects 3 beads one after the other without replacement. Fin
castortr0y [4]
Since your second pick is affected by your first pick & your third pick is affected by the first two, it is dependent. 

First pick: 18 marbles, 3 are red, so odds are 3/18 = 1/6 

Second pick: 17 marbles, 8 are blue, odds are 8/17 

Third pick: 16 marbles, 7 are black, odds are 7/16 

<span>1/6 * 8/17 * 7/16 = 56/1632 = 7/204 & as mentioned before it's dependent</span>
3 0
3 years ago
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