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Andrej [43]
3 years ago
7

Solve each system of linear equation by substitution. X+4y=6 Y=-X+3

Mathematics
1 answer:
timurjin [86]3 years ago
3 0
Since one equation has a variable already solved for, we can use that to plug it in to the other equation.

Y has been solved for, plug it into the other one

x + 4(-x+3) =6
x + -4x + 12 = 6
-12. -12
x+(-4x) = -6
-3x = -6
/-3. /-3

x=2

y = -x+3
y = -(2)+3
y=1
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Given that a function, g, has a domain of -1 ≤ x ≤ 4 and a range of 0 ≤ g(x) ≤ 18 and that g(-1) = 2 and g(2) = 8, select the st
Juli2301 [7.4K]

Answer:

Option 4 is correct.

Step-by-step explanation:

Consider a function g, it has a domain of -1 ≤ x ≤ 4 and a range of 0 ≤ g(x) ≤ 18. It is given that g(-1) = 2 and g(2) = 8.

The statement g(5) = 12 is not true because the value of x is 5 which is not in its domain.

The statement g(1) = -2 is not true because the value of function g(x) is -2 which is not in its range.

The statement g(2) = 4 is not true because g is a function and each function has unique output for each input value.

If g(2)=8 and g(2)=4, then the value of g(x) is 8 and 4 at x=2. It means g(x) is not a function, which is contradiction of given statement.

The statement g(3) = 18 is true because the value of x is 3 which is in the domain and the value of function g(x) is 18 which is in its range.

Therefore, the correct option is 4.

8 0
4 years ago
Read 2 more answers
Help with this please
Paha777 [63]
I think it is B 
hope this helps

6 0
3 years ago
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vladimir2022 [97]

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5 0
4 years ago
What fraction of an hour is 18 minutes?<br> Give your answer in its simplest form.
enot [183]

Answer:

3/10

Step-by-step explanation:

An hour is 60 mins

so the fraction would be 18/60

Then you can divide both numbers by 6 to 3/10

4 0
3 years ago
Read 2 more answers
If a parachutist jumped from an airplane flying at an altitude of 10,000 feet and fell at an average free fall speed of 158 feet
scZoUnD [109]
The answer is -2,686

let me tell you why !

the answer would be negative, since the parachutist is descending. so 158 × 17 = 2,686

make that negative.

you get -2,686 !!!! hope that helps :)))
7 0
3 years ago
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