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katen-ka-za [31]

3 years ago

10

What value of b will cause the system to have an infinite number of solutions?

1 answer:

Vlad [161]3 years ago

7 0

Answer:

y=6x+b -2x+1/2y=-3. O -6. O -3. O 3. O

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Q =3x2+5x-2 R = 2 – x2 S = 2x + 5 Find Q – [R + S] Show all of the steps.

matrenka [14]

$Q=3x^2+5x-2\\R=2-x^2\\S=2x+5\\\\Q-[R+S]=(3x^2+5x-2)-[(2-x^2)+(2x+5)]\\\\=(3x^2+5x-2)-(2-x^2+2x+5)\\\\=(3x^2+5x-2)-[-x^2+2x+(2+5)]\\\\=(3x^2+5x-2)-(-x^2+2x+7)\\\\=3x^2+5x-2-(-x^2)-2x-7\\\\=3x^2+5x-2+x^2-2x-7\\\\=(3x^2+x^2)+(5x-2x)+(-2-7)\\\\=\boxed{4x^2+3x-9}$

5 0

3 years ago

A restaurant has fixed costs of $147.50 per day and an average unit cost of $5.75 for each meal served. If a typical meal costs

Nikolay [14]

Answer:

The answer is 118.

Step-by-step explanation:

First we need to subtract the meal cost from average unit cost for each meal:

$7-5.75=1.25$

A restaurant profits 1.25$ for each meal. If we divide fixed cost to profit for each meal:

$147.5/1.25=118$

The restaurant have to sell 118 meals at least each day for the owner to break even

5 0

3 years ago

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barxatty [35]

Answer:

a

Step-by-step explanation:

5 0

2 years ago

Please help me with this problem im having trouble answering this

adell [148]

Answer:

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4 0

3 years ago

11/10=n/14 Please solve this will give brainliest for the correct answer

Talja [164]

$\text{ Hi there! =)}$

$\large\boxed{n = 15.4}$

$\frac{11}{10} =\frac{n}{14} \\\\\text{ Cross multiply to solve for n:}\\\\11 * 14 = 10 * n\\\\154 = 10n\\\\n = 15.4$

8 0

2 years ago