How do you know when the solution to a system of equation is a precise answer and when it is an approximate answer?

Well once you get a value for x and y and you plug it back to the equation both of the equation should be equal if the answer is wrong they will not be equal

Step-by-step explanation:

Related Questions

What is the length of line AB? Given Line AB = 4x line BC = 2x + 6

The answer to this is 16.

What is the greatest common factor of 40 and 48

The anser is to your question is 8

GCF of 40 and 48:

40

2    20

2     10

2    5

48

2     24

2     12

2    6

2   3

40 = 2 * 2 * 2 * 5

48 = 2 * 2 * 2 * 2 * 3

They have 2 * 2 * 2 is common

2 * 2 * 2 = 8

GCF of 40 and 48 = 8

A construction crew is lengthening a road that originally measured 55 miles. The crew is adding one mile to the road each day. Let L be the length (in miles) after D days of construction. Write an equation relating L to D . Then use this equation to find the length of the road after 12 days.

L = 55 miles from the beginning + 1 mile they build each day times how many days have passed, so it's gonna be:

A real word problem where you have to multiply 120 and 75

There where 120 blankets for sale at the sale barn. They cost \$75 dollars each. I want all of them. How much is my total?

So 120•75

Hope that helps

What is the solution set for 7x−3=18 , given the replacement set {0, 1, 2, 3, 4} ? A x = 0
B x = 2
C x = 3

Step-by-step explanation: 7x=18+3

7x=21

x/7=21/7

x=3

A snail travels 3/8 feet in 1/2 hour. How many feet does the snail travel in one hour.

The snail will travel 6/8 feet in 1 hour because 1/2 hour+1/2 hour is a hour so you do 3/8+3/8. They have like denominators so it is 3+3. 6/8.

3/4

Step-by-step explanation:

8.5 is 50% of what number

The answer is going to be 17%. hope that helped

If the discriminate of a quadratic equation is equal to -8 which statement describes the roots

Roots of the quadratic Equation are not real. Roots are Complex Conjugates.

Step-by-step explanation:

Given: Discriminant of the a Quadratic Equation = -8

ax² + bx + c = 0 is standard form of quadratic equation, then the discriminant is given as follows:

D = b² - 4ac

we know that if,

1). D > 0 then Roots of the Quadratic equations are Real and Distinct.

2). D = 0 then Roots of the Quadratic equations are Real and Equal.

3). D < 0 then Roots of the Quadratic equations are not Real . They are complex conjugate.

So, for the given Discriminant we have Roots of the quadratic Equation are not real. Roots are Complex Conjugates.

There are no real roots
there are 2 complex roots