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Fofino [41]
3 years ago
5

How many ways are there to pick a selection of coins from $1 worth of identical pennies, $1 worth of identical nickels, and $1 w

orth of identical dimes if (a) you select a total of 9 coins? (b) you select a total of 16 coins?
Mathematics
1 answer:
Zolol [24]3 years ago
6 0
What? I do not understand the question
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Nikolay [14]

Answer:

from the image above

Triangle ABE = Triangle ADE

AE = AE ( common).

angle AEB = angle AEO ( each 90°)

AB = AD ( given).

by side angle side criteria

so area of ABE = area of ADE

similarly,

BC = DC ( given)

BEC = DEC ( 90°)

EC = EC ( 9m each)

so area of BEC = Area of DEC

<h3><u>Area </u><u>of </u><u>Kite </u><u>=</u><u> </u><u>2</u><u>1</u><u>0</u><u> </u><u>m²</u></h3>

6 0
2 years ago
2x-3y=2 2x+y=10 plzz help
qwelly [4]

Answer:

y

Step-by-step explanation:

7 0
3 years ago
Please help me on this
timurjin [86]

download the app Aleks & you’ll get your answer

7 0
3 years ago
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What is the vertex of the following graph?
boyakko [2]

The graph represents a parabola and a parabola is maximum or minimum at its vertex . So we need to check the graph , and find the point where the graph is maximum or minimum. And from the given graph , we can say that it is a downward up parabola which is minimum at its vertex . And the minimum point is (1.4). So the vertex is (1,4) .

6 0
4 years ago
A line passing through​ (6,a) and ​(9,-4) is parallel to 2x-3y=6. What is the value of​ a?
PSYCHO15rus [73]

Answer:

a= -6

Step-by-step explanation:

Please see attached picture for full solution.

I skipped a few steps while rewriting the equation into the form of y=mx+c

Here's the step-by-step working if you don't understand:

2x -3y= 6

2x= 3y +6 (+3y on both sides)

2x -6= 3y (-6 on both sides)

3y= 2x -6

<em>y= 2/3x -2</em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em>(÷3 throughout)

5 0
4 years ago
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