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3 years ago

The sales tax on the model rocket shown is $1.92. What is the percent of sales tax?

Mathematics

1 answer:

fgiga [73]3 years ago

3 0

It’s 192% because you just need to remove all the points :) hope i helped

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Find the slope of the line passing through (-4,6) and (10,8)

muminat

Answer:

1/7

Step-by-step explanation:

In order to determine the slope, we must find the change in y over the change in x:

$\frac{y_{2}-y_{1} }{x_{2}-x_{1} } = \frac{8-6}{10--4}$ = 2/14= 1/7.

Therefore, the slope between these two points is 1/7.

6 0

3 years ago

Read 2 more answers

Section J in an arena has 20 rows each row has 15 seats all tickets cost $18 each if I'll seats are sold how much money will the

12345 [234]

20 rows * 15 seats per row=300 seats in section J
300 seat in Section J * $18 per ticket= $5,400 in revenue

6 0

3 years ago

Forty children from an after-school club went to the matinee.This is 25% of the children in the club.How many children are in th

Korvikt [17]

25% = 0.25

40 / 0.25 = 160

40 is 25% of 160.

There are 160 children in the club.

7 0

2 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
$\sqrt{ (x-a)^{2}+ (y-b)^{2} }$ = $y-c$
$(x-a)^{2}+ (y-b)^{2}= (y-c)^{2}$ ⇒ substituting a, b and c
$(x-2)^{2}+ (y--0.5)^{2} = (y--1.5)^{2}$
$(x-2)^{2}+ (y+0.5)^{2}= (y+1.5)^{2}$ ⇒Rearranging and making $y$ the subject gives

$y= \frac{ x^{2} }{2} -2x+1$

7 0

3 years ago

Help me please thank you

Kruka [31]

this is probably wrong but i got 25.2

3 0

2 years ago