10x 10y = 1 x = y - 3 what is the value of y?

Answers

Answer 1

Answer: Solve the equations by substitution. If the equations are inconsistent and the solution is an empty set, write "no solution".
10x - 10y = 1
x = y - 3
10x - 10y = 1
x = y - 3
The second equation is solved for x, Sosubstitute (y - 3) for x in the first equation10x - 10y = 1
10(y - 3) - 10y = 1
10y - 30 - 10y = 1-30 = 1
The y's all canceled out and left a false numerical equation,-30 in not equal to 1, so there is no solution. The system is called aninconsistent system of equation.

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Which off the following expressions is equal to -3x^2-12A. (-3x+2i)(x-6i)
B. (-3x-6i)(x+2i)
C. (-3x-6i)(x+2i)
D. (-3x-4i)(x-3i)

Answers

Answer:

B. (-3x-6i)(x+2i)

C. (-3x-6i)(x+2i)

Since they are the same answer choice. Should be (-3x-6i)(x-2i) should be the correct answer.

Step-by-step explanation:

The polynomial -3x^2-12 can be factored using GCF into -3(x^2+4).

x^2+4 is a sum of squares and factors into the form (x+ai)(x-ai).

x^2+4 factors into (x+2i)(x-2i).

We put them together and have -3(x+2i)(x-2i) = (-3x-6i)(x-2i)

Please answer question 14

Answers

there are 36 possibilities so
1,1
1,2
1,3
1,4
1,5
1,6
2,1
2,2
2,3
2,4
2,5
2,6
3,1
3,2
3,3
3,4
3,5
3,6
4,1
4,2
4,3
4,4
4,5
4,6
5,1
5,2
5,3
5,4
5,5
5,6
6,1
6,2
6,3
6,4
6,5
6,6

A binomial consists of _______ terms.

Answers

Two terms

bi is latin for two, therefore a binomial has two terms

A binomial consists of two terms. Hence the term bi, meaning two as in bicycle or bipod.

800 children a day ride on the roller coaster, but another 200 are turned away because they're not tall enough. What proportion of the total number of children are turned away?A) Half are turned away
B) One quarter are turned away
C) One fifth are turned away