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4 years ago

Explain how you know which coins could be used to show 0.77 of a dollar

Mathematics

1 answer:

Vesnalui [34]4 years ago

6 0

You would have to use nickels, dimes, and quarters because if you used dollars...it would go over 0.77 cents.

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The sides of an equilateral triangle measure 0.2(10x+90)cm each. If the perimeter of the triangle is 612.6 cm, what is the side

Sedbober [7]

Answer:

204.2 cm

Step-by-step explanation:

equilateral means all sides are of equal length.

the perimeter of such a triangle is simply 3 times one of these sides.

so,

612.6 = 3×0.2×(10x + 90) = 0.6×(10x+90) = 6x + 54

6x = 558.6

x = 93.1

so, a single side is

0.2×(10×93.1 +90) = 0.2×(931 + 90) = 0.2×1021 = 204.2 cm

to check

3×204.2 = 612.6 = the original perimeter.

so, correct.

8 0

3 years ago

Does the system have a no solution or infinitely many solutions<br> Y=2/3x+2-2x+3y=6

oee [108]

Answer:

answer for y=2/3x+2: y=2/3x+2

answer for -2x+3y=6: x=3/2y-3

pls give brainliest

8 0

3 years ago

Read 2 more answers

Graph the image of the figure after a dilation with a scale factor of 1/3 centered at (1, −2) . Use the polygon tool to graph th

brilliants [131]

Answer:

New image will have (2,1) , (-2,0) and (-2,-2) as new vertex.

Below is the graph.

Step-by-step explanation:

Given the triangle with points (4,7) , (-8,4) and (-8,-2) having dilation center at (1,-2) .

We have to dilate using a factor of 1/3 and graph the new image.

Let us find all the three points,

Formula,

New point = [old point - dilation center]* scale factor + dilation center

So,

For (4,7)

$[(4,7)- (1,-2)]*\frac{1}{3} + (1,-2)$

$[3,9]*\frac{1}{3} +(1,-2)$

$[1,3]+(1,-2)= (2,1)$

For (-8,4)

$[(-8,4)- (1,-2)]*\frac{1}{3} + (1,-2)$

$[-9,6]*\frac{1}{3} +(1,-2)$

$[-3,2]+(1,-2)= (-2,0)$

For (-8,-2)

$[(-8,-2)- (1,-2)]*\frac{1}{3} + (1,-2)$

$[-9,0]*\frac{1}{3} +(1,-2)$

$[-3,0]+(1,-2)= (-2,-2)$

Therefore these (2,1) , (-2,0) and (-2,-2) are the new vertices after dilation.

4 0

4 years ago

Help me and can you put the equation you used

mezya [45]

Answer:

3.45652173913

Step-by-step explanation:

the equation is 159 divided by 46

6 0

4 years ago

<img src="https://tex.z-dn.net/?f=x%5E%7B8%7D%2Bx%5E%7B4%7D%2B1" id="TexFormula1" title="x^{8}+x^{4}+1" alt="x^{8}+x^{4}+1" alig

ella [17]

You did not provide directions. What do you want us to do with your 8th degree polynomial?

6 0

2 years ago