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3 years ago

Find the exact solutions of the equation x2 +3x + 1=0.

Mathematics

2 answers:

adell [148]3 years ago

7 0

X =(-3-√13)/2=-3.303, or x =(-3+√13)/2= 0.303 either one of these should work, hope this helps :)

zimovet [89]3 years ago

4 0

X2+3x+1=0

5x+1=0
-1 -1
5x=-1
/5 /5
x=-0.2

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Please help if your kind enough, this is due today I’ll mark u as brainliest & rate u 5 stars

timofeeve [1]

Given:

Two parallel lines are cut by a transversal and form a pair of alternate interior angles.

One angle measures (6x + 5)° and the other measure (7x - 4)°

We need to determine the measure of each angle.

Value of x:

Since, the two angles are alternate interior angles, then the two angles are congruent.

Thus, we have;

$6x+5=7x-4$

$-x+5=-4$

$-x=-9$

$x=9$

Thus, the value of x is 9.

Measure of each angle:

The measure of each angle can be determined by substituting $x=9$ in the measures of each angle.

Thus, we have;

$(6x + 5)^{\circ}=(6(9) + 5)^{\circ}=59^{\circ}$

$(7x - 4)^{\circ}=(7(9) - 4)^{\circ}=59^{\circ}$

Thus, the measure of each angle is 59°

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3 years ago

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NNADVOKAT [17]

Answer:

answer below

Step-by-step explanation:

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This is what I got

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3 years ago

a student found the slope of a line that passes through the points (-3,10) and (5,-7) to be 3/8. what mistake did he make?

Yuki888 [10]

Slope = (y2 - y1) / (x2 - x1)
slope = (-7-10) / (5 - (-3)
slope is supposed to be -17/8
I am guessing she made her mistake by adding a negative sign...the student did : (-7 - (-10) / (5 - (-3) = (-7 + 10) / (5 + 3) = 3/8

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ch4aika [34]

Answer:

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Step-by-step explanation:

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Vinil7 [7]

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