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Zolol [24]
3 years ago
9

What are the solutions of this quadratic equation? x + 2x = -2​

Mathematics
1 answer:
mote1985 [20]3 years ago
3 0

Answer:

x + 2x = -2

3x = -2

x = -2/3

   or

x = -66.66

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4 digit minus 4 Digit
max2010maxim [7]

Answer:

I don’t know

Step-by-step explanation:

Plz clairify

3 0
3 years ago
2. Which diagram shows a point P an equal distance from points A, B, and C?H
amm1812

Answer:

The correct option is (a).

Step-by-step explanation:

The vertices are equidistant from the circumcenter.

Circumcenter of a triangle is a point where the perpendicular bisectors are intersection each other.

In figure (a) the point P is the intersection point of all perpendicular bisector, therefore point P is the circumcenter of triangle ABC and the point P is equidistant from A,B and C.

Therefore option (a) is correct.

In figure (b) the point P is the intersection point of all perpendicular, therefore point P is not the circumcenter of triangle ABC.

Therefore option (b) is incorrect.

In figure (c) the point P is the intersection point of all bisectors, therefore point P is not the circumcenter of triangle ABC.

Therefore option (c) is incorrect.

In figure (d) the point P is the intersection point of all medians, therefore point P is not the circumcenter of triangle ABC.

Therefore option (d) is incorrect.

4 0
3 years ago
Read 2 more answers
I need some help pls​
NikAS [45]
M = 3
y-intercept = -4

hope this helps
4 0
3 years ago
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What is the approximate area of the shaded sector in the circle shown below
Zepler [3.9K]
I believe it is C hope this helps
3 0
3 years ago
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Help!!!
Jobisdone [24]

Answer:

In the year 2019 the number of new cars purchased will reach 15,000.

Step-by-step explanation:

t = 0 corresponds to the number of new cars purchased in 1998. If that is so, we can determine t ( time ) by making our quadratic equation here equal to 15,000 - considering that we want the year the number of cars reaches this value. t here is only the number of years to reach 15,000 cars, so we would have to add that value to 1998, to see the year that the cars will reach 15,000.

The " set up " should look like the following quadratic equation -

20t² + 135t + 3050 = 15,000 - Isolate 0 on one side,

20t² + 135t - 11950 = 0 - From here on let us solve using the quadratic equation formula,

t=\frac{-135+\sqrt{135^2-4\cdot \:20\left(-11950\right)}}{2\cdot \:20}:\quad \frac{-27+\sqrt{38969}}{8},

t=\frac{-135-\sqrt{135^2-4\cdot \:20\left(-11950\right)}}{2\cdot \:20}:\quad -\frac{27+\sqrt{38969}}{8} ... now as you can see we have two solutions, but time can't be negative, and hence our solution is the first one - about 21.3 years. 1998 + 21.3 = ( About ) The year 2019. Therefore, in the year 2019 the number of new cars purchased will reach 15,000.

3 0
3 years ago
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