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Aleks [24]
3 years ago
10

Solve the following system of equations using any method you want.

Mathematics
2 answers:
aniked [119]3 years ago
8 0

Answer:

y = - 2, x = 2

Step-by-step explanation:

Remove x and solve for y

2x - 2x - 5y - y = 12

-6y = 12

y = - 2

Substitute y back into the equation

-2 + 2x = 2

2x = 4

x = 2

Daniel [21]3 years ago
3 0
2x+y=2
2x-5y=14
Subtract the two equation
6y= -12
Y= - 2
Put y= -2 in any equation
2x-2=2
2x=4
X=2
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guapka [62]
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Then all the (x)'s should be 4 more than the original value
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2 years ago
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According to a study conducted in one city, 35% of adults in the city have credit card debts more than $2.000. A simple random s
BabaBlast [244]

Answer:

Binomial; \mu p=87.5, \sigma p=7.542

Step-by-step explanation:

  • a distribution is said be a binomial distribution iff
  1. The probability of success of that event( let it be p) is same for every trial
  2. each trial should have 2 outcome : p or (1-p) i.e, success or failure only.
  3. there are fixed number of trials (n)
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  • here n=250
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(35/100=0.35 is the required p here)

  • \mu_{p} =n*p=250*\frac{35}{100} =250*0.35=87.5

[since, the formula for \mu _{p} =n*p ]

  • \sigma _{p} =\sqrt{n*(p)*(1-p)} = \sqrt{250*0.35*(1-0.35)} = 7.542 ( approximately)

[since, the formula for [tex]\sigma _{p} =\sqrt{n*(p)*(1-p)}

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4 0
3 years ago
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Answer:

One real root, with multiplicity 7.

Step-by-step explanation:

The given expresion is

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This is a seventh degree polynomial.

According to the fundamental theorem of Algebra, the expression has a potential 7 roots both real and complex.

This expression has one real root, with multiplicity , 7.

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Hope this helps you!!

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