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Anni [7]
3 years ago
14

Pls!! Which sum or difference is modeled by the algebra tiles?

Mathematics
2 answers:
lidiya [134]3 years ago
8 0

Answer:

<h2>Option C.</h2>

Step-by-step explanation:

Basically, to solve this problem, we just have to find the sum or difference that results in 2x^{2}+2x+2

Option A:

(x^{2}+4x-2)+(x^{2}-2x-4)=2x^{2}+2x-6

Option B:

(x^{2}+4x-2)+(x^{2}+2x+4)=2x^{2}+6x+2

Option C:

(x^{2}+4x-2)-(-x^{2}+2x-4)=x^{2}+4x-2+x^{2}-2x+4=2x^{2}+2x+2

Therefore, option C is the expression which models the algebra tiles.

nasty-shy [4]3 years ago
3 0

Answer: your answer is C

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Complete the solution of the equation. find the value of y when x equals -8 <br> 8x+8y=-48
Korvikt [17]
<span>8x + 8y = -48
-------------------------
Plug in -8 for x
(8) (-8) + 8y = -48
-------------------------------
Simplify
</span><span><span><span>(8) </span><span>(<span>−8</span>) </span></span>+ <span>8y </span></span>= <span>−<span>48
</span></span><span><span>−64 </span>+ <span>8y </span></span>= <span>−<span>48
</span></span><span><span>8y </span>− 64 </span>= <span>−<span>48
</span></span>-----------------------------------------
Add 64 to each side
<span><span><span>8y </span>− 64 </span>+ 64 </span>= <span><span>−48 </span>+ 64
</span><span>8y </span>= <span>16
</span>---------------------------------------------------
Finally, divide each side by 8
8y ÷ 8 = 16 ÷ 8
y = <span>2
</span>----------------------------------------------------------------
y = 2 is your answer
4 0
3 years ago
The point (2,-5) is reflected over the y-axis. Which of the following points is the image?
docker41 [41]
2,5 would be the answer
7 0
3 years ago
The following data was collected from a simple random sample of a population.
aivan3 [116]

Answer:

C

Step-by-step explanation:

This problem is analogous to the extraction of 6 elements from a total of 10 elements. It's the same if they are marbles, chips, or in this case, people, as here we don't care about the order of the selection as we only are drawing a sample.

Thus, the problem implies solving the amount of possible combinations of 10 people if we take by 6. There is a formula for this and is:

10 C 6 = 10!(6!4!)

If we operate, knowing that for any number x, x!=x*(x-1)*(x-2)*...*1

10 C 6 = 10!(6!4!) = 10*9*8*7*6*...*1 / [(6*5*...*1) * (4*3*2*1)]

10 C 6 = 10*9*8*7*6! / [(6*5*...*1) * (4*3*2*1)]

We have a 6! multiplying and another dividing, so they get eliminated, and as 4*2=8 and 9=3*3

10 C 6 = 10*9*8*7*/ [(4*3*2*1)] = 10*3*3*8*7*/ [(8*3*1)]

We can eliminate the 8s and one of the 3s on the numerator with the one on the denominator:

10 C 6 = 10*3*7*/1 = 210/1= 210

So, option C

5 0
3 years ago
Help me with this ASAP PLEASE
xxMikexx [17]
It is the first one
5 0
3 years ago
HELP PLEASE 40 Points both questions please
Anit [1.1K]
The answer for this is C.
4 0
3 years ago
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