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2 years ago

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3. Reason A right triangle has leg lengths

1 answer:

Serga [27]2 years ago

8 0

Answer:

YAAA

Step-by-step explanation:

YAAAAAAAAAAA

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An isosceles trapezoid ABCD with height 2 units has all its vertices on the parabola y=a(x+1)(x−5). What is the value of a, if p

horrorfan [7]

Answer:

a = -0.3575

Step-by-step explanation:

The points A and D lie on the x-axis, this means that they are the x-intercepts of the parabola, and therefore we can find their location.

The points A and B are located where

$y=a(x+1)(x-5)=0$

This gives

$x=-1$

$y=5$

Now given the coordinates of A, we are in position to find the coordinates of the point B. Point B must have y coordinate of y=2 (because the base of the trapezoid is at y=0), and the x coordinate of B, looking at the figure, must be x coordinate of A plus horizontal distance between A and B, i.e

$B_x=A_x+\frac{2}{tan(60)} =-1+\frac{2\sqrt{3} }{3}$

Thus the coordinates of B are:

$B=(-1+\frac{2\sqrt{3} }{3},2)$

Now this point B lies on the parabola, and therefore it must satisfy the equation $y=a(x+1)(x-5).$

Thus

$2=a((-1+\frac{2\sqrt{3} }{3})+1)((-1+\frac{2\sqrt{3} }{3})-5)$

Therefore

$a=\frac{2}{((-1+\frac{2\sqrt{3} }{3})+1)((-1+\frac{2\sqrt{3} }{3})-5)}$

$\boxed{a=-0.3575}$

8 0

3 years ago

Quanto fa 2 +2 ,qualcuno capisce l’italiano?

creativ13 [48]

Answer:

i dont know which language is this but the answer is 4

6 0

2 years ago

Read 2 more answers

Mr. Gengel wants to make a shelf with boards that are 1 1/3 feet long. If he has an 18 foot board, how many pieces can he cut fr

ValentinkaMS [17]

18 ft* (1 piece/ 1 1/3 ft)= 13.5 pieces.

Mr. Gengel can only cut 13 pieces from the big board (because we don't have half a piece)~

5 0

3 years ago

Read 2 more answers

If x is 6, What is X+4

hichkok12 [17]

Answer:

x = 10

Step-by-step explanation:

We know x = 6

asked: x + 4

Plus it in =>

6 + 4

=> 10

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3 years ago

Markus receives dollar bills from his grandfather for one week. On The first day he received a one dollar. On the second day he

Aleksandr [31]

Answer:

he will have $127 by the end of the week

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2 years ago