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ANEK [815]
2 years ago
6

Use substitution to solve the following system of equations. - 2x + 4y = -18AND x = y + 3

Mathematics
1 answer:
Dima020 [189]2 years ago
7 0
The anwser is (-6,-9)
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The complex solution to a quadratic equation is x equals start fraction three plus or minus square root of negative 36 end squar
Naya [18.7K]
The square root of a -36 simplifies to "6i". So you have 3+/- [6i/6].  The 6's cancel each other out leaving 3+/-i.  So the "a" is 3 and the "b" is 1
4 0
3 years ago
Help! I’ll give brainliest!
BigorU [14]

Answer:

d) -2

Step-by-step explanation:

(-1 - 19)/(16 - 6)

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4 0
2 years ago
Laurie is trying to stay within 10 feet of her current diving depth of -30 feet (with regard to sea level) so that the light is
frez [133]

Answer:

It should be the first one

Step-by-step explanation:

since positive ten would represent going further up and negative ten going further down, the diver would be within ten feet of her current position

8 0
3 years ago
Two cyclists start at the same point and travel in opposite directions. One cyclist travels 4 km per hour faster than the other.
yaroslaw [1]

Answer:

the rate of the first cyclist: 28km/h

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Step-by-step explanation:

x= the rate of the first cyclist

x+4= the rate of the 2nd cyclist

after 4 hours: + the first cyclist travels 4x  (km)

                       + the 2nd cyclist travels 4(x+4)  (km)

because the two cyclists are 240 km apart after 4 hours

=> 4x + 4(x+4) = 240 => x= 28

i hope it's useful forr u =)))

5 0
3 years ago
Write an equation of the line with the given slope and y-intercept: m = negative 5, b = 4
NeTakaya

Answer: y= -5x+4

Step-by-step explanation:

6 0
3 years ago
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