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STatiana [176]
3 years ago
11

How many solutions does the system have? y=−2x−4 y=3x+3 ​

Mathematics
2 answers:
andriy [413]3 years ago
8 0
One solution, I’m sorry if this is wrong but I remember studying this so I’m hope I’m right!
Molodets [167]3 years ago
4 0

Answer:

One Solution

Step-by-step explanation:

First substitute the y in the first equation with the second equation to get

-2x-4=3x+3

since theres a variable of both sides, you subtract the variable with the least coefficient, in this case, you add 2x to both sides to get

-4=5x+3

subtract the constant on both sides to get

-1=5x

divide both sides by 5

x= -0.2 or -1/5

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g(2) = 3(2) + 8

g(2) = 14

g(2)=14 Hope this helps

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Option B:

It is one-half the area of a square of side length 4 units.

Solution:

Base of the triangle = 4 units

Height of the triangle = 4 units

Area of the triangle = \frac{1}{2} \times\text{base}\times\text{height}

                                 $=\frac{1}{2}\times{4}\times{4}

Area of the triangle = 8 square units

Option A: It is one-half the area of a rectangle of length 4 units and width 2 units.

Area of the rectangle = 4 × 2 = 8 square units

Half of rectangle = \frac{1}{2}\times8=4 square units

It is not true because area of the triangle is 8 square units.

Option B: It is one-half the area of a square of side length 4 units.

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Half of square = \frac{1}{2}\times16=8 square units

It is true because area of the triangle is 8 square units.

Option C: It is twice the area of a rectangle of length 4 units and width 2 units.

Area of the rectangle = 4 × 2 = 8 square units

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Option D: It is twice the area of a square of side length 4 units.

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Hence Option B is the correct answer.

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