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3 years ago

I NEED HELP ASAP Which option best shows X< -6

Mathematics

1 answer:

nexus9112 [7]3 years ago

5 0

Answer:

Step-by-step explanation:

Given x < - 6

Since less than, then looking for an open circle at - 6 on the number line

If ≤ then closed circle at - 6

Also since less than - 6 we are looking for the arrow pointing to the left indicating values less than - 6 , arrow right indicates greater than - 6

The option is therefore A

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As a result of a cyclone, the price of bananas rose 85% to $9.99 per kg. How much did bananas cost before the cyclone?

Karo-lina-s [1.5K]

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4 years ago

Solve the following equation for s P=b+2s

laiz [17]

Answer:

s=P-b/2

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P-b=2s

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3 years ago

List all x intercepts for y= -cos(1/2x + 1/5 pi) on the interval [-2/5pi,4pi]

Dahasolnce [82]

- cos ( 1/2 x + 1/5 π ) = 0 ( and because if cos α = 0, α= π/2 + k π, k ∈ Z )
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Answer:
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3 0

4 years ago

Read 2 more answers

A parabola can be drawn given a focus of (-11, -2) and a directrix of x= -3

fgiga [73]

Check the picture below, so the parabola looks more or less like that.

now, the vertex is half-way between the focus point and the directrix, so that puts it where you see it in the picture, and the horizontal parabola is opening to the left-hand-side, meaning that the distance "P" is negative.

$\textit{horizontal parabola vertex form with focus point distance} \\\\ 4p(x- h)=(y- k)^2 \qquad \begin{cases} \stackrel{vertex}{(h,k)}\qquad \stackrel{focus~point}{(h+p,k)}\qquad \stackrel{directrix}{x=h-p}\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix}\\\\ \stackrel{"p"~is~negative}{op ens~\supset}\qquad \stackrel{"p"~is~positive}{op ens~\subset} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}$

$\begin{cases} h=-7\\ k=-2\\ p=-4 \end{cases}\implies 4(-4)[x-(-7)]~~ = ~~[y-(-2)]^2 \\\\\\ -16(x+7)=(y+2)^2\implies x+7=-\cfrac{(y+2)^2}{16}\implies x=-\cfrac{1}{16}(y+2)^2-7$

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2 years ago

How to solve 3(2x-7)=5x+4

notka56 [123]

You have to start by using the distributive property on the left side.
3(2x-7)=5x+4
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+21 +21
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-5x -5x
x=25

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4 years ago

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