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3 years ago

WILL MARK AS BRAINLYIEST If x1 and x2 are solutions to ax2+bx+c=0 where a≠0, then x1+x2=

Mathematics

1 answer:

lesya692 [45]3 years ago

8 0

Answer:

x1 + x2 = -b/a

The answer is based on "Vieta's Formulas" for the sum and product of roots. In other words, in its simplest form, it states that:

for ax^2 + bx + c = 0

x1 + x2 = -b/a
x1 × x2 = c/a

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7. Use graph paper to graph each linear function:<br> f(x) = 4x - 7

skelet666 [1.2K]

Any line can be graphed using two points. Select two x x values, and plug them into the equation to find the corresponding y y values. Any line can be graphed using two points. Select two x x values, and plug them into the equation to find the corresponding y y values.

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2 years ago

Question 1: Find the equation of the line through point (5,4) and perpendicular to y=−43x−2. Use a forward slash (i.e. "/") for

Mariulka [41]

Answer:

Question 1: y = 3/4x + 1/4.

Question 2: y = 6/5x + 7/5.

Step-by-step explanation:

Question 1: A line perpendicular to another line would have a slope that is the negative reciprocal of the other line. If the slope of the first line is -4/3, the slope of a line perpendicular to the first would have a slope of 3/4.

Since the line goes through (5, 4), we can just put the points into the equation, y = 3/4x + b.

4 = 3/4(5) + b

b + 15/4 = 4

b = 16/4 - 15/4

b = 1/4

So, the equation of the line is y = 3/4x + 1/4.

Question 2: 5x + 6y = -6

6y = -5x - 6

y = -5/6x - 1

As stated before, a line perpendicular to another will have a slope that is the negative reciprocal of the other. So, the slope of the other line is 6/5.

The line goes through (-2, -1), so we can put the points into the equation, y = 6/5x + b.

-1 = 6/5(-2) + b

b - 12/5 = -5/5

b = -5/5 + 12/5

b = 7/5

So, the equation of the line is y = 6/5x + 7/5.

Hope this helps!

8 0

3 years ago

Place the first digit 298 / 4

torisob [31]

The answer is 74.5 ahen you divide 298÷4

8 0

3 years ago

Read 2 more answers

Divide and express your answer to lowest term

musickatia [10]

Step-by-step explanation:

3/4:2/5=3/4×5/2=15/8

3/8 ÷ 2/12=3/8 ×12/2=36/16=9/4

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2 years ago

I need help plzzzz percent equations blank% of $30 =3

Lyrx [107]

Answer:

10%

Step-by-step explanation:

Hello I can help you with this question. Lets start.

The question is asking what percent of $30 is 3

so i think u actually meant $3 right but anyways

30 is 10 times 3

then clearly it would be 10%

gogo that's the answer!

4 0

2 years ago