Plzzzzzzz helpppp and explain.

Mathematics

2 answers:

AlekseyPX3 years ago

8 0

Answer:

obtuse

Step-by-step explanation:

ICE Princess25 [194]3 years ago

4 0

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Answer: Obtuse Scalene Triangle

Explanation:

125 < 169 Sum of the squares of the smaller 2 sides < longest side squared

I hope this helped!

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A backhoe can dig

lorasvet [3.4K]

5 holes =1 hour

10 = 6 hours

60 min in 1 hour

60x6=360

360min 360=/M

5/m=1h=10/m=M

bye the time ones donec its /M

1/10

4 0

3 years ago

Read 2 more answers

The focus of a parabola is (-3,-5) The directrix of the parabola is y=2

cricket20 [7]

Check the picture below.

so the focus point is there, and the directrix is above it, meaning is a vertical parabola and is opening downwards, since the parabola opens up towards the focus.

now, the vertex is half-way between those two guys, at a "p" distance from either one, if we move over the y-axis from -5 to +2, we have 7 units, half-way is 3.5 units, and that puts us at -1.5 or -1½, as you see in the picture, so the vertex is then at (-3 , -1½).

so the distance from the vertex to the focus point is then 3½ units, however since the parabola is opening downwards, "p" is negative, thus "p = 3½".

$\bf \textit{parabola vertex form with focus point distance} \\\\ \begin{array}{llll} 4p(x- h)=(y- k)^2 \\\\ \stackrel{\textit{using this one}}{4p(y- k)=(x- h)^2} \end{array} \qquad \begin{array}{llll} vertex\ ( h, k)\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix} \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}$

$\bf \begin{cases} h=-3\\ k=-\frac{3}{2}\\[0.7em] p=-\frac{7}{2} \end{cases}\implies 4\left( -\cfrac{7}{2} \right)\left[ y-\left(-\cfrac{3}{2} \right) \right]=\left[ x-\left( -3 \right) \right]^2 \\\\\\ -14\left( y+\cfrac{3}{2} \right)=(x+3)^2\implies y+\cfrac{3}{2} =-\cfrac{(x+3)^2}{14} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill y=-\cfrac{1}{14}(x+3)^2-\cfrac{3}{2}~\hfill$