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pshichka [43]
3 years ago
5

What is a solution to -x+5-5x+4=3(2x+3

Mathematics
2 answers:
Svetllana [295]3 years ago
6 0

Answer:

x = 0

Step-by-step explanation:

fenix001 [56]3 years ago
3 0

Answer:

x=0

Step-by-step explanation:

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Every day the teacher has her class of ten students line up for lunch. how many different ways can the students line up?
vlada-n [284]
That's a question for arrangement, so we have:
A^{10}_{10}=10*9*8*7*6*5*4*3*2*1=5.4*10^{11}
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3 years ago
What equation results from completing the squre and then factoring x^2+10=15
nlexa [21]

For this case we must complete squares:

x ^ 2 + 10x = 15

We add the square of half the coefficient of the term "x",

(\frac {b} {2a}) ^ 2 on both sides of the equation:

x^2+10x+(\frac {10} {2 (1)}) ^ 2 = 25 + 15\\x ^ 2 + 10x + 5 ^ 2 = 25 + 15

According to the perfect square trinomial we have:

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

Rewriting the expression we have:

a = x\\b = 5\\(x + 5) ^ 2 = 25 + 15\\(x + 5) ^ 2 = 40

ANswer:

(x + 5) ^ 2 = 40

6 0
3 years ago
Please help do not answer if u don't know the answer
Kisachek [45]

Answer:

C

Step-by-step explanation:

8 0
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Use Words,Pictures or Numbers, make a Math Arguement.
Pavel [41]
13, 6+7=13 thats my answer :D
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A hiker travels at a speed of 3 miles per hour for 3 hours.How far does the hiker travel in that time?
Lady bird [3.3K]
3×3=9 miles. As a result, hiker traveled total 9 miles in that time. Hope it help!
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