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exis [7]
3 years ago
12

You are buying a pair of ice skates that are on sale. The original price is $308. The sale sign says that the price has been red

uced by 15%. What is the sale price before tax?
Mathematics
1 answer:
Neporo4naja [7]3 years ago
8 0

Answer:

$261.80

Step-by-step explanation:

If you do not mind can I have brainliest

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Graph the equation<br> g(x)=1/5x^2-2x-1
Svetradugi [14.3K]

Answer:

Step-by-step explanation:

8 0
3 years ago
Please Help!: 36x = $45.00
artcher [175]
45.00/ 36
move the decimal. do the same to the 36.
4500/ 3600
<u><em>1.25</em></u>
7 0
3 years ago
How to find area of parallelogram with coordinates of verticles?
ExtremeBDS [4]
You find a parallelogram area by this formula:
A=b\cdot h
Where b is its base and h, its height.
You get b's value applying distance between two points formula.
If A and B points form the base:
A(x_1,y_1)\;\;\;\;B(x_2,y_2) \\  \\ &#10;d_{AB}= \sqrt{(x_1-x_2)^2+(y_1-y_2)^2} =b

And h is the perpendicular distance between both bases.
You can visit next link to know further about it:
https://www.ck12.org/geometry/Distance-Between-Parallel-Lines/lesson/Distance-Between-Parallel-Lines
-GEOM/

And in attached picture you can find an example in progress you may want to finish.

5 0
4 years ago
Point T has coordinates (10,20). To calculate the coordinates of point T′ in the image,
Hatshy [7]

Answer: T'(18,36)

Step-by-step explanation:

For this exercise it is important to know the definition of "Dilation".

 A Dilation is defined as a transformation in which the Image (The figure obtained after the transformation) and the Pre-Image (The original figure before the transformation) have the same shape but have different sizes.

If the Dilation is centered at the origin, and knowing the scale factor of \frac{9}{5}, you need to multiply each coordinate of the point T by the scale factor in order to find the coordinates of the Image T'.

Knowing that the point T has the following coordinates:

T(10,20)

You get that the coordinates of the Image T' are the shown below:

T'=(\frac{9}{5}*10,\frac{9}{5}*20)\\\\T'=(18,36)

6 0
4 years ago
) At a certain instant of time, a cube has side length 2 inches and its volume is increasing at a rate of 0.5 inches cubed per h
Phantasy [73]

Answer:

1 inches per cube

As required.

Step-by-step explanation:

Solution:

Given:

Volume = l3

dV / dt = 3 l2dl / dt

dv / dt = 0.5 inches cubed / hour

Surface area = 6 l2

Differentiate with respect to t: s = 6 l2

We get:

ds / dt = 12 l dl / dt

and dv / dt = = 0.5 inches cubed / hour

we know that:

dv / dt = 20 = 3 l2dl / dt

0.5 = 3 l2 (dl / dv)(dv / dt)

0.5 = 3l2 dl / dt

0.5 / 3l2 = dl / dt

Put 0.5 / 3l2 = dl / dt  in eq ds / dt = 12 l dl / dt

ds / dt = 12 l (0.5 / 3l2)

        =  4(0.5) / l

       = 2 / 2 inches pr cube    [ l = 2 inches per cube]

    = 1 inches per cube

As required.

3 0
3 years ago
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