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3 years ago

I put 41 points.

Mathematics

1 answer:

Anna71 [15]3 years ago

3 0

It is the first equation, 3x-y=-7.
It is the only equation that both sets of points satisfy as true.

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I'll give brainliest to correct answer TvT

laila [671]

It’s 1.4 bc 2.9-1.5

7 0

3 years ago

Read 2 more answers

Identify the quadratic function(s). (Select all that apply.)

Katen [24]

General Idea:

The quadratic function of the form $ax^2+bx+c=0$ .

Applying the concept:

Simplifying the equation in option A, we get...

$A) \; 8 - 5x = 4(3x - 1) \\Distributing \; 4 \; in \; right \; side \; of \; the \; equation. \\ \\ 8 - 5x = 12x - 4\\ The \; equation \; is \; a \; linear \; equation \; with \; variable \; on \; both \; sides.$

Simplifying the equation in option B, we get...

$B) \; \; (4a + 2)(2a - 1) + 1 = 0\\ Multiplying \; First \; \; Outer \; \; Inner \; \; Last \; terms\; in\; the \; left \; side.\\ \\ 4a \cdot 2a + 4a \cdot -1 + 2 \cdot 2a + 2 \cdot -1 + 1 = 0\\ \\ 8a^2-4a+4a-2+1=0\\ Combining \; like \; terms \; \\ \\ 8a^2 - 1 = 0\\ Above \; is \; a \; Quadratic \; Equation!$

Simplifying the equation in Option C, we get...

$C)\; \; 2y + 2(3y - 5) = 0\\ Distributing \; 2 \; in \; left \; side\\ \\ 2y+6y-10=0\\ Combining \; like \; terms\\ \\ 8y - 10 = 0\\ Above \; Equation \; is \; linear \; equation$

Simplifying the equation in Option D, we get

$D) \;2b(b - 7) + b = 0\\ Distributing \; 2b\; in \;the \;left\; side \;of \;the\;equation\\ \\ 2b \cdot b - 2b \cdot 7+b=0\\ Simplify \; in \; the \; left \; side \; of \; the \; equation\\ \\ 2b^2-14b+b=0\\ Combine \; like \; terms\\ \\ 2b^2-13b=0\\ Above \; equation \;is \;a \; Quadratic\;Equation!$

<u>Conclusion:</u>

Option B) & Option D) are quadratic equation!

7 0

3 years ago

Read 2 more answers

Divide 6300 between two persons in the ratio 2 ratio 5<br>

Galina-37 [17]

Answer:

Step-by-step explanation:

Do you mean

divide 6300 between two persons in the ratio 2 to 5?

If so, then there will be a total of 7 parts

6300/7 = 900

2(900) = 1800

5(900) = 4500

4 0

3 years ago

-2/3x+3/7=1/2<br> solve for x

Goryan [66]

-2/3x+3/7=1/2
-2/3x=13/14. Multiply by -2 to get positive
(-2). (-2) and whole number for x
3x=-26/14 or -13/7 [ -13/7_ 3 = -13/7 *1/3 =
Divide by 3 13/21

x=13/21

6 0

3 years ago

How do I solve 5x(3x2 + 2x - 1)

elena55 [62]

Answer:

10x+25

Step-by-step explanation:

5 0

3 years ago