What is the discriminant of the polynomial below? 2x + 47-9

(b) If the population doubled in size over 30 months and the current population is 20,000, what will the population be 4 years

Evgen [1.6K]

Answer:

The population will be 160,000 in 3 years.

Step-by-step explanation:

6 0

3 years ago

Y=-3×+1 is it an independent dependent or a inconsistent

scoundrel [369]

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4 0

3 years ago

Prove the segments joining the midpoint of consecutive sides of an isosceles trapezoid form a rhombus. use the distance formula

riadik2000 [5.3K]

In order to prove this, we have to put the trapezoid to the coordinate system. In the attached photo you can see how it has to be put. The coordinates for the vertices of trapezoid written according to the midpoint principle. By using the distance between two points formula, we can find the coordinates for the vertices of the rhombus.
$D_{x} = \frac{-2b-2a}{2}=-b-a$ and $D_{y}= \frac{2c+0}{2}=c$ . The coordinates of D is $(-b-a, c)$
$E_{x} = \frac{-2b+2b}{2}=0$ and $E_{y}= \frac{2c+2c}{2}=2c$ . The coordinates of E is $(0,2c)$
Since we have the reflection in this graph, the coordinates of F is $(b+a, c)$
And the coordinates of G is (0,0).

Using the distance formula, we can find that
$DE= \sqrt{(-b-a)^{2}+ c^{2}}=\sqrt{(b+a)^{2} + c^{2}}$
$EF= \sqrt{(b+a)^{2} + c^{2} }$
$GF= \sqrt{(b+a )^{2} + c^{2} }$
$DG= \sqrt{(b+a)^{2}+ c^{2}$

Since all the sides are equal this completes our proof. Additionally, we can find the distances of EG and DF in order to show that the diagonals of this rhombus are not equal. So that it is not a square, but rhombus.

6 0

3 years ago

Read 2 more answers

What is the slope of line a? A. -1/4 B. -4 C. 4 D. 1/4

Len [333]

Answer:

A. -1/4

Step-by-step explanation:

The line is going down making the slope negative and doing rise over run the slope is -1/4.

$\frac{1- 0}{0-4}$ = 1/-4 = -1/4

6 0

3 years ago

Read 2 more answers

How to get a alone (g=a+b/ca

shtirl [24]

Kill g when he's watching a drag the corpse to the bathroom and lock. as for b you May want to drug the water c and you blackmail them to leave
then it's just you and A

8 0

3 years ago

What is the discriminant of the polynomial below?2x + 47-9​

What is the discriminant of the polynomial below?2x + 47-9