I need help finding the answers on this question there is more than one

Mathematics

2 answers:

Gennadij [26K]2 years ago

5 0

Answer:

number 1,2 and 3

hope it will help you.

if it is wrong then sorry

kari74 [83]2 years ago

5 0

Answer:

Here's the correct answers for your queries.

But the last option is not correct because z° and y° do not collectively form 90° which is the complementary angle. And the values are also provided.

Therefore,

The Correct Answers Are:

√A

√B

√C

But not D.

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Find the equation of a parabola with a vertical axis and its vertex at the origin and passing through the point (-2, 3)

vredina [299]

a vertical axis, I assume it means a vertical axis of symmetry, thus it'd be a vertical parabola, like the one in the picture below.

$\bf ~~~~~~\textit{parabola vertex form} \\\\ \begin{array}{llll} y=a(x- h)^2+ k\qquad \qquad \leftarrow vertical\\\\ x=a(y- k)^2+ h \end{array} \qquad\qquad vertex~~(\stackrel{}{ h},\stackrel{}{ k}) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} h=0\\ k=0 \end{cases}\implies y=a(x-0)^2+0 \\\\\\ \textit{we also know that } \begin{cases} x=-2\\ y=3 \end{cases}\implies 3=a(-2-0)^2+0\implies 3=4a \\\\\\ \cfrac{3}{4}=a~\hspace{10em}y=\cfrac{3}{4}(x-0)^2+0\implies \boxed{y=\cfrac{3}{4}x^2}$