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3 years ago

A cheer squad of 8 cheerleaders raised $317.30. They need $622.42 to

Mathematics

2 answers:

adell [148]3 years ago

6 0

Answer:

Each cheerleader needs to raise 38.14 more

Step-by-step explanation:

viva [34]3 years ago

5 0

Answer:

They each need to raise $38.14.

Step-by-step explanation:

For this problem, I started off by subtracting 317.30 from 622.42.

(622.42-317.30) This gave us 305.12.

I did this, because we are trying to find the amount of money the cheerleaders have left to make.

Next, we will divide the difference of this equation (305.12) by 8.

We did this because there are 8 cheerleaders, and they all made the same amount of money.

This leaves us with an answer of:

Each cheerleader has exactly $38.14 left to make.

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3 years ago

A parabola has a focus of F(2, -0.5) and a directrix of y=-1.5 P(x,y) represents any point on the parabola, while D(x, -1.5) rep

prohojiy [21]

The sketch of the parabola is attached below

We have the focus $(a,b) = (2, -0.5)$
The point $P(x,y)$
The directrix, c at $y=-1.5$

The steps to find the equation of the parabola are as follows

Step 1
Find the distance between the focus and the point P using Pythagoras. We have two coordinates; $(2, -0.5)$ and $(x,y)$ .
We need the vertical and horizontal distances to find the hypotenuse (the diagram is shown in the second diagram).
The distance between the focus and point P is given by
$\sqrt{ (x-a)^{2}+ (y-b)^{2} }$

Step 2
Find the distance between the point P to the directrix $c$ . It is a vertical distance between y and c, expressed as $y-c$

Step 3
The equation of parabola is then given as
$\sqrt{ (x-a)^{2}+ (y-b)^{2} }$ = $y-c$
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3 years ago

If g(x) = 4 square root of x then g(45) is

AlladinOne [14]

Hi,

So we have g(x) = 4√(x). We're looking for g(45). Think of it like this: whatever number is in the place of x in g(x), just place that number AS x.

Therefore, we have :
g(45) = 4√(45) ⇒ (4) × (√(45)) ⇒ (4)(3√(5)) = 12√(5).

-Hope this helps!

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3 years ago